* [PATCH 0/3] ARM: S5PV210: Add MIPI-DSI support.
@ 2010-06-29 8:31 ` InKi Dae
0 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-06-29 8:31 UTC (permalink / raw)
To: linux-arm-kernel, linux-fbdev-devel, akpm, Ben Dooks, kmpark
Hello all,
This patch is for MIPI-DSI controller based on S5PV210 (or S5PC110).
LCD Panel can use following interfaces,
- RGB or CPU Interface.
- RGB or CPU Interface based on MIPI-DSI.
In case of small size lcd panel, it was ok only rgb or cpu interface not
using mipi controller.
But big size panel(more then 480x800) needs MIPI-DSI Interface or other
hardwares like LVDS
To transfer image data to lcd panel fine.
I tested this patch on cpu interface based on MIPI so for this patch,
Some mainline codes should be modified and also considered RGB interface.
This patch set consists of the following patches,
[PATCH 1/3] FB: Add some members for CPU Interface.
[PATCH 2/3] S5PV210: FB: Add MIPI-DSI and CPU Interface features.
[PATCH 3/3] S5PV210: Add MIPI-DSI Driver.
Best regards,
InKi Dae
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH 0/3] ARM: S5PV210: Add MIPI-DSI support.
@ 2010-06-29 8:31 ` InKi Dae
0 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-06-29 8:31 UTC (permalink / raw)
To: linux-arm-kernel
Hello all,
This patch is for MIPI-DSI controller based on S5PV210 (or S5PC110).
LCD Panel can use following interfaces,
- RGB or CPU Interface.
- RGB or CPU Interface based on MIPI-DSI.
In case of small size lcd panel, it was ok only rgb or cpu interface not
using mipi controller.
But big size panel(more then 480x800) needs MIPI-DSI Interface or other
hardwares like LVDS
To transfer image data to lcd panel fine.
I tested this patch on cpu interface based on MIPI so for this patch,
Some mainline codes should be modified and also considered RGB interface.
This patch set consists of the following patches,
[PATCH 1/3] FB: Add some members for CPU Interface.
[PATCH 2/3] S5PV210: FB: Add MIPI-DSI and CPU Interface features.
[PATCH 3/3] S5PV210: Add MIPI-DSI Driver.
Best regards,
InKi Dae
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [PATCH 1/3] FB: Add some members for CPU Interface.
[not found] ` <4C29CABE.9020208@samsung.com>
@ 2010-07-01 22:26 ` Andrew Morton
0 siblings, 0 replies; 30+ messages in thread
From: Andrew Morton @ 2010-07-01 22:26 UTC (permalink / raw)
To: InKi Dae; +Cc: kmpark, linux-fbdev-devel, Ben Dooks, linux-arm-kernel
On Tue, 29 Jun 2010 19:28:14 +0900
InKi Dae <inki.dae@samsung.com> wrote:
>
> CPU interface needs cs, wr setup, wr act and hold delay.
> I added some members for them to common framework.
>
> Signed-off-by: InKi Dae <inki.dae@samsung.com <mailto:p.osciak@samsung.com>>
> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com
> <mailto:kyungmin.park@samsung.com>>
These email addresses are mangled.
> --- a/drivers/video/modedb.c
> +++ b/drivers/video/modedb.c
> ...
> --- a/include/linux/fb.h
> +++ b/include/linux/fb.h
The patch seems pretty specific to s3c-fb. Is it possible and sensible
to somhow avoid adding code to generic files? Can we push more (or
all) of these changes into s3c-fb.c or into the arch/arm support code?
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH 1/3] FB: Add some members for CPU Interface.
@ 2010-07-01 22:26 ` Andrew Morton
0 siblings, 0 replies; 30+ messages in thread
From: Andrew Morton @ 2010-07-01 22:26 UTC (permalink / raw)
To: linux-arm-kernel
On Tue, 29 Jun 2010 19:28:14 +0900
InKi Dae <inki.dae@samsung.com> wrote:
>
> CPU interface needs cs, wr setup, wr act and hold delay.
> I added some members for them to common framework.
>
> Signed-off-by: InKi Dae <inki.dae at samsung.com <mailto:p.osciak@samsung.com>>
> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com
> <mailto:kyungmin.park@samsung.com>>
These email addresses are mangled.
> --- a/drivers/video/modedb.c
> +++ b/drivers/video/modedb.c
> ...
> --- a/include/linux/fb.h
> +++ b/include/linux/fb.h
The patch seems pretty specific to s3c-fb. Is it possible and sensible
to somhow avoid adding code to generic files? Can we push more (or
all) of these changes into s3c-fb.c or into the arch/arm support code?
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH 0/2] ARM: S5PV210: Add MIPI-DSI support.
2010-06-29 8:31 ` InKi Dae
@ 2010-07-02 8:47 ` InKi Dae
-1 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-02 8:47 UTC (permalink / raw)
To: linux-arm-kernel, linux-fbdev-devel, akpm, Ben Dooks, kmpark
Hello all,
This patch is for MIPI-DSI controller based on S5PV210 (or S5PC110), and solved the problem, added cpu timing variables to fb_varscreen_info and Andrew Morton, Russell King and Jaya Kumar pointed out.
so I'm sending these patch series again.
LCD Panel can use following interfaces,
- RGB or CPU Interface.
- RGB or CPU Interface based on MIPI-DSI.
in case of small size lcd panel, it was ok only rgb or cpu interface not using mipi controller.
but big size panel(more then 480x800) needs MIPI-DSI Interface or other hardwares like LVDS To transfer image data to lcd panel fine.
I tested this patch on cpu interface based on MIPI so for this patch, Some mainline codes should be modified and also considered RGB interface.
This patch set consists of the following patches,
[PATCH 1/2] S5PV210: FB: Add MIPI-DSI and CPU Interface features.
[PATCH 1/2] S5PV210: Add MIPI-DSI Driver.
Best regards,
InKi Dae
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH 0/2] ARM: S5PV210: Add MIPI-DSI support.
@ 2010-07-02 8:47 ` InKi Dae
0 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-02 8:47 UTC (permalink / raw)
To: linux-arm-kernel
Hello all,
This patch is for MIPI-DSI controller based on S5PV210 (or S5PC110), and solved the problem, added cpu timing variables to fb_varscreen_info and Andrew Morton, Russell King and Jaya Kumar pointed out.
so I'm sending these patch series again.
LCD Panel can use following interfaces,
- RGB or CPU Interface.
- RGB or CPU Interface based on MIPI-DSI.
in case of small size lcd panel, it was ok only rgb or cpu interface not using mipi controller.
but big size panel(more then 480x800) needs MIPI-DSI Interface or other hardwares like LVDS To transfer image data to lcd panel fine.
I tested this patch on cpu interface based on MIPI so for this patch, Some mainline codes should be modified and also considered RGB interface.
This patch set consists of the following patches,
[PATCH 1/2] S5PV210: FB: Add MIPI-DSI and CPU Interface features.
[PATCH 1/2] S5PV210: Add MIPI-DSI Driver.
Best regards,
InKi Dae
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH 1/2] S5PV210: FB: Add MIPI-DSI and CPU Interface features.
[not found] ` <4C29B4BA.4090903@samsung.com>
@ 2010-07-02 8:50 ` InKi Dae
0 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-02 8:50 UTC (permalink / raw)
To: linux-arm-kernel, linux-fbdev-devel, akpm, Ben Dooks, kmpark
[-- Attachment #1.1: Type: text/plain, Size: 9438 bytes --]
this patch adds features for supportting MIPI Interface and CPU mode to
s3c-fb.c
for this, I added following features.
. add struct fb_cmdmode
- this structure would be used for cpu interface.
. add interface_mode to struct s3c_fb_platdata.
- this variable would be used to distinguishe whether CPU or RGB mode.
. add two functions for cpu interface.
- s3c_fb_set_trigger would be used for to send trigger signal to FIMD.
- s3c_fb_is_i80_frame_done would be used to check framedone status.
. add a function for setting timing.
- I added this function because it have to distinguishe interfaces.
(CPU or RGB mode)
. add register definitions for using MIPI-DSI mode.
Signed-off-by: InKi Dae <inki.dae@samsung.com <mailto:p.osciak@samsung.com>>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com
<mailto:kyungmin.park@samsung.com>>
---
diff --git a/arch/arm/plat-samsung/include/plat/fb.h b/arch/arm/plat-samsung/include/plat/fb.h
index 27d3b49..b0204f8 100644
--- a/arch/arm/plat-samsung/include/plat/fb.h
+++ b/arch/arm/plat-samsung/include/plat/fb.h
@@ -22,6 +22,23 @@
*/
#define S3C_FB_MAX_WIN (5)
+enum {
+ FIMD_VIDEO_MODE = 0,
+ FIMD_COMMAND_MODE
+};
+
+struct fb_cmdmode {
+ const char *name; /* optional */
+ u32 refresh; /* optional */
+ u32 xres;
+ u32 yres;
+ u32 pixclock;
+ u32 cs_setup;
+ u32 wr_setup;
+ u32 wr_act;
+ u32 wr_hold;
+};
+
/**
* struct s3c_fb_pd_win - per window setup data
* @win_mode: The display parameters to initialise (not for window 0)
@@ -30,6 +47,7 @@
*/
struct s3c_fb_pd_win {
struct fb_videomode win_mode;
+ struct fb_cmdmode cmd_mode;
unsigned short default_bpp;
unsigned short max_bpp;
@@ -42,6 +60,7 @@ struct s3c_fb_pd_win {
* @setup_gpio: Setup the external GPIO pins to the right state to transfer
* the data from the display system to the connected display
* device.
+ * @interface_mode: cpu mode or rgb mode.
* @vidcon0: The base vidcon0 values to control the panel data format.
* @vidcon1: The base vidcon1 values to control the panel data output.
* @win: The setup data for each hardware window, or NULL for unused.
@@ -57,6 +76,7 @@ struct s3c_fb_platdata {
void (*setup_gpio)(void);
struct s3c_fb_pd_win *win[S3C_FB_MAX_WIN];
+ u32 interface_mode;
u32 vidcon0;
u32 vidcon1;
@@ -91,4 +111,10 @@ extern void s5pc100_fb_gpio_setup_24bpp(void);
*/
extern void s5pv210_fb_gpio_setup_24bpp(void);
+struct fb_info;
+
+extern void s3c_fb_set_trigger(struct fb_info *info);
+
+extern int s3c_fb_is_i80_frame_done(struct fb_info *info);
+
#endif /* __PLAT_S3C_FB_H */
diff --git a/arch/arm/plat-samsung/include/plat/regs-fb-v4.h b/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
index 0f43599..4d5954b 100644
--- a/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
+++ b/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
@@ -135,6 +135,22 @@
#define WPALCON (0x1A0)
+/* For CPU interface. */
+#define TRIGCON (0x1a4)
+#define TRGMODE_I80_ENABLE (1 << 0)
+#define SWTRGCMD_I80_TRIGGER (1 << 1)
+#define SWFRSTATUS_I80 (1 << 2)
+
+#define I80IFCONA0 (0x1b0)
+#define I80IFEN_ENABLE (1 << 0)
+#define RSPOL_HIGH (1 << 2)
+#define LCD_WR_HOLD(x) (((x) & 0xf) << 4)
+#define LCD_WR_ACT(x) (((x) & 0xf) << 8)
+#define LCD_WR_SETUP(x) (((x) & 0xf) << 12)
+#define LCD_CS_SETUP(x) (((x) & 0xf) << 16)
+
+#define I80IFCONB0 (0x1b8)
+
/* Palette control */
/* Note for S5PC100: you can still use those macros on WPALCON (aka WPALCON_L),
* but make sure that WPALCON_H W2PAL-W4PAL entries are zeroed out */
diff --git a/arch/arm/plat-samsung/include/plat/regs-fb.h b/arch/arm/plat-samsung/include/plat/regs-fb.h
index 0ef806e..70342aa 100644
--- a/arch/arm/plat-samsung/include/plat/regs-fb.h
+++ b/arch/arm/plat-samsung/include/plat/regs-fb.h
@@ -38,6 +38,7 @@
#define VIDCON0_VIDOUT_TV (0x1 << 26)
#define VIDCON0_VIDOUT_I80_LDI0 (0x2 << 26)
#define VIDCON0_VIDOUT_I80_LDI1 (0x3 << 26)
+#define VIDCON0_DSI_EN_ENABLE (1 << 30)
#define VIDCON0_L1_DATA_MASK (0x7 << 23)
#define VIDCON0_L1_DATA_SHIFT (23)
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c
index 9682ecc..28d34ef 100644
--- a/drivers/video/s3c-fb.c
+++ b/drivers/video/s3c-fb.c
@@ -255,6 +255,73 @@ static int s3c_fb_align_word(unsigned int bpp, unsigned int pix)
}
/**
+ * s3c_fb_set_trigger - fimd trigger based on cpu interface.
+ */
+void s3c_fb_set_trigger(struct fb_info *info)
+{
+ struct s3c_fb_win *win = info->par;
+ struct s3c_fb *sfb = win->parent;
+ void __iomem *regs = sfb->regs;
+ u32 reg = 0;
+
+ reg = readl(regs + TRIGCON);
+
+ reg |= TRGMODE_I80_ENABLE | SWTRGCMD_I80_TRIGGER;
+
+ writel(reg, regs + TRIGCON);
+}
+
+/**
+ * s3c_fb_is_i80_frame_done - get i80 frame done status.
+ */
+int s3c_fb_is_i80_frame_done(struct fb_info *info)
+{
+ struct s3c_fb_win *win = info->par;
+ struct s3c_fb *sfb = win->parent;
+ void __iomem *regs = sfb->regs;
+ u32 reg = 0;
+
+ reg = readl(regs + TRIGCON);
+
+ return (((reg & SWFRSTATUS_I80) == SWFRSTATUS_I80) ? 1 : 0);
+}
+
+/**
+ * s3c_fb_set_cpu_timing - set cpu timing.
+ */
+static void s3c_fb_set_timing(struct s3c_fb *sfb, struct fb_info *info)
+{
+ struct s3c_fb_win *win = info->par;
+ struct s3c_fb_pd_win *windata = win->windata;
+ struct fb_var_screeninfo *var = &info->var;
+ void __iomem *regs = sfb->regs;
+ u32 reg = 0;
+
+ if (sfb->pdata->interface_mode == FIMD_VIDEO_MODE) {
+ reg = VIDTCON0_VBPD(var->upper_margin - 1) |
+ VIDTCON0_VFPD(var->lower_margin - 1) |
+ VIDTCON0_VSPW(var->vsync_len - 1);
+
+ writel(reg, regs + VIDTCON0);
+
+ reg = VIDTCON1_HBPD(var->left_margin - 1) |
+ VIDTCON1_HFPD(var->right_margin - 1) |
+ VIDTCON1_HSPW(var->hsync_len - 1);
+
+ writel(reg, regs + VIDTCON1);
+ } else if (sfb->pdata->interface_mode == FIMD_COMMAND_MODE) {
+ reg = LCD_CS_SETUP(windata->cmd_mode.cs_setup) |
+ LCD_WR_SETUP(windata->cmd_mode.wr_setup) |
+ LCD_WR_ACT(windata->cmd_mode.wr_act) |
+ LCD_WR_HOLD(windata->cmd_mode.wr_hold) |
+ I80IFEN_ENABLE;
+
+ writel(reg, regs + I80IFCONA0);
+ } else
+ dev_warn(sfb->dev, "wrong interface type.\n");
+}
+
+/**
* s3c_fb_set_par() - framebuffer request to set new framebuffer state.
* @info: The framebuffer to change.
*
@@ -318,17 +385,7 @@ static int s3c_fb_set_par(struct fb_info *info)
data |= VIDCON0_ENVID | VIDCON0_ENVID_F;
writel(data, regs + VIDCON0);
- data = VIDTCON0_VBPD(var->upper_margin - 1) |
- VIDTCON0_VFPD(var->lower_margin - 1) |
- VIDTCON0_VSPW(var->vsync_len - 1);
-
- writel(data, regs + VIDTCON0);
-
- data = VIDTCON1_HBPD(var->left_margin - 1) |
- VIDTCON1_HFPD(var->right_margin - 1) |
- VIDTCON1_HSPW(var->hsync_len - 1);
-
- writel(data, regs + VIDTCON1);
+ s3c_fb_set_timing(sfb, info);
data = VIDTCON2_LINEVAL(var->yres - 1) |
VIDTCON2_HOZVAL(var->xres - 1);
@@ -744,7 +801,8 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
struct s3c_fb_win **res)
{
struct fb_var_screeninfo *var;
- struct fb_videomode *initmode;
+ struct fb_videomode *videomode;
+ struct fb_cmdmode *cmdmode;
struct s3c_fb_pd_win *windata;
struct s3c_fb_win *win;
struct fb_info *fbinfo;
@@ -763,11 +821,20 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
}
windata = sfb->pdata->win[win_no];
- initmode = &windata->win_mode;
WARN_ON(windata->max_bpp == 0);
- WARN_ON(windata->win_mode.xres == 0);
- WARN_ON(windata->win_mode.yres == 0);
+
+ if (sfb->pdata->interface_mode == FIMD_VIDEO_MODE) {
+ WARN_ON(windata->win_mode.xres == 0);
+ WARN_ON(windata->win_mode.yres == 0);
+
+ videomode = &windata->win_mode;
+ } else {
+ WARN_ON(windata->cmd_mode.xres == 0);
+ WARN_ON(windata->cmd_mode.yres == 0);
+
+ cmdmode = &windata->cmd_mode;
+ }
win = fbinfo->par;
var = &fbinfo->var;
@@ -777,18 +844,19 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
win->index = win_no;
win->palette_buffer = (u32 *)(win + 1);
- ret = s3c_fb_alloc_memory(sfb, win);
- if (ret) {
- dev_err(sfb->dev, "failed to allocate display memory\n");
- return ret;
+ /* setup the initial video or cpu mode from the window */
+ if (sfb->pdata->interface_mode == FIMD_VIDEO_MODE)
+ fb_videomode_to_var(&fbinfo->var, videomode);
+ else {
+ var->xres = cmdmode->xres;
+ var->yres = cmdmode->yres;
+ var->xres_virtual = cmdmode->xres;
+ var->yres_virtual = cmdmode->yres;
+ var->xoffset = 0;
+ var->yoffset = 0;
+ var->pixclock = cmdmode->pixclock;
}
- /* setup the r/b/g positions for the window's palette */
- s3c_fb_init_palette(win_no, &win->palette);
-
- /* setup the initial video mode from the window */
- fb_videomode_to_var(&fbinfo->var, initmode);
-
fbinfo->fix.type = FB_TYPE_PACKED_PIXELS;
fbinfo->fix.accel = FB_ACCEL_NONE;
fbinfo->var.activate = FB_ACTIVATE_NOW;
@@ -798,6 +866,15 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
fbinfo->flags = FBINFO_FLAG_DEFAULT;
fbinfo->pseudo_palette = &win->pseudo_palette;
+ ret = s3c_fb_alloc_memory(sfb, win);
+ if (ret) {
+ dev_err(sfb->dev, "failed to allocate display memory\n");
+ return ret;
+ }
+
+ /* setup the r/b/g positions for the window's palette */
+ s3c_fb_init_palette(win_no, &win->palette);
+
/* prepare to actually start the framebuffer */
ret = s3c_fb_check_var(&fbinfo->var, fbinfo);
[-- Attachment #1.2: Type: text/html, Size: 10215 bytes --]
[-- Attachment #2: Type: text/plain, Size: 176 bytes --]
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 30+ messages in thread
* [PATCH 1/2] S5PV210: FB: Add MIPI-DSI and CPU Interface features.
@ 2010-07-02 8:50 ` InKi Dae
0 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-02 8:50 UTC (permalink / raw)
To: linux-arm-kernel
this patch adds features for supportting MIPI Interface and CPU mode to
s3c-fb.c
for this, I added following features.
. add struct fb_cmdmode
- this structure would be used for cpu interface.
. add interface_mode to struct s3c_fb_platdata.
- this variable would be used to distinguishe whether CPU or RGB mode.
. add two functions for cpu interface.
- s3c_fb_set_trigger would be used for to send trigger signal to FIMD.
- s3c_fb_is_i80_frame_done would be used to check framedone status.
. add a function for setting timing.
- I added this function because it have to distinguishe interfaces.
(CPU or RGB mode)
. add register definitions for using MIPI-DSI mode.
Signed-off-by: InKi Dae <inki.dae at samsung.com <mailto:p.osciak@samsung.com>>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com
<mailto:kyungmin.park@samsung.com>>
---
diff --git a/arch/arm/plat-samsung/include/plat/fb.h b/arch/arm/plat-samsung/include/plat/fb.h
index 27d3b49..b0204f8 100644
--- a/arch/arm/plat-samsung/include/plat/fb.h
+++ b/arch/arm/plat-samsung/include/plat/fb.h
@@ -22,6 +22,23 @@
*/
#define S3C_FB_MAX_WIN (5)
+enum {
+ FIMD_VIDEO_MODE = 0,
+ FIMD_COMMAND_MODE
+};
+
+struct fb_cmdmode {
+ const char *name; /* optional */
+ u32 refresh; /* optional */
+ u32 xres;
+ u32 yres;
+ u32 pixclock;
+ u32 cs_setup;
+ u32 wr_setup;
+ u32 wr_act;
+ u32 wr_hold;
+};
+
/**
* struct s3c_fb_pd_win - per window setup data
* @win_mode: The display parameters to initialise (not for window 0)
@@ -30,6 +47,7 @@
*/
struct s3c_fb_pd_win {
struct fb_videomode win_mode;
+ struct fb_cmdmode cmd_mode;
unsigned short default_bpp;
unsigned short max_bpp;
@@ -42,6 +60,7 @@ struct s3c_fb_pd_win {
* @setup_gpio: Setup the external GPIO pins to the right state to transfer
* the data from the display system to the connected display
* device.
+ * @interface_mode: cpu mode or rgb mode.
* @vidcon0: The base vidcon0 values to control the panel data format.
* @vidcon1: The base vidcon1 values to control the panel data output.
* @win: The setup data for each hardware window, or NULL for unused.
@@ -57,6 +76,7 @@ struct s3c_fb_platdata {
void (*setup_gpio)(void);
struct s3c_fb_pd_win *win[S3C_FB_MAX_WIN];
+ u32 interface_mode;
u32 vidcon0;
u32 vidcon1;
@@ -91,4 +111,10 @@ extern void s5pc100_fb_gpio_setup_24bpp(void);
*/
extern void s5pv210_fb_gpio_setup_24bpp(void);
+struct fb_info;
+
+extern void s3c_fb_set_trigger(struct fb_info *info);
+
+extern int s3c_fb_is_i80_frame_done(struct fb_info *info);
+
#endif /* __PLAT_S3C_FB_H */
diff --git a/arch/arm/plat-samsung/include/plat/regs-fb-v4.h b/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
index 0f43599..4d5954b 100644
--- a/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
+++ b/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
@@ -135,6 +135,22 @@
#define WPALCON (0x1A0)
+/* For CPU interface. */
+#define TRIGCON (0x1a4)
+#define TRGMODE_I80_ENABLE (1 << 0)
+#define SWTRGCMD_I80_TRIGGER (1 << 1)
+#define SWFRSTATUS_I80 (1 << 2)
+
+#define I80IFCONA0 (0x1b0)
+#define I80IFEN_ENABLE (1 << 0)
+#define RSPOL_HIGH (1 << 2)
+#define LCD_WR_HOLD(x) (((x) & 0xf) << 4)
+#define LCD_WR_ACT(x) (((x) & 0xf) << 8)
+#define LCD_WR_SETUP(x) (((x) & 0xf) << 12)
+#define LCD_CS_SETUP(x) (((x) & 0xf) << 16)
+
+#define I80IFCONB0 (0x1b8)
+
/* Palette control */
/* Note for S5PC100: you can still use those macros on WPALCON (aka WPALCON_L),
* but make sure that WPALCON_H W2PAL-W4PAL entries are zeroed out */
diff --git a/arch/arm/plat-samsung/include/plat/regs-fb.h b/arch/arm/plat-samsung/include/plat/regs-fb.h
index 0ef806e..70342aa 100644
--- a/arch/arm/plat-samsung/include/plat/regs-fb.h
+++ b/arch/arm/plat-samsung/include/plat/regs-fb.h
@@ -38,6 +38,7 @@
#define VIDCON0_VIDOUT_TV (0x1 << 26)
#define VIDCON0_VIDOUT_I80_LDI0 (0x2 << 26)
#define VIDCON0_VIDOUT_I80_LDI1 (0x3 << 26)
+#define VIDCON0_DSI_EN_ENABLE (1 << 30)
#define VIDCON0_L1_DATA_MASK (0x7 << 23)
#define VIDCON0_L1_DATA_SHIFT (23)
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c
index 9682ecc..28d34ef 100644
--- a/drivers/video/s3c-fb.c
+++ b/drivers/video/s3c-fb.c
@@ -255,6 +255,73 @@ static int s3c_fb_align_word(unsigned int bpp, unsigned int pix)
}
/**
+ * s3c_fb_set_trigger - fimd trigger based on cpu interface.
+ */
+void s3c_fb_set_trigger(struct fb_info *info)
+{
+ struct s3c_fb_win *win = info->par;
+ struct s3c_fb *sfb = win->parent;
+ void __iomem *regs = sfb->regs;
+ u32 reg = 0;
+
+ reg = readl(regs + TRIGCON);
+
+ reg |= TRGMODE_I80_ENABLE | SWTRGCMD_I80_TRIGGER;
+
+ writel(reg, regs + TRIGCON);
+}
+
+/**
+ * s3c_fb_is_i80_frame_done - get i80 frame done status.
+ */
+int s3c_fb_is_i80_frame_done(struct fb_info *info)
+{
+ struct s3c_fb_win *win = info->par;
+ struct s3c_fb *sfb = win->parent;
+ void __iomem *regs = sfb->regs;
+ u32 reg = 0;
+
+ reg = readl(regs + TRIGCON);
+
+ return (((reg & SWFRSTATUS_I80) == SWFRSTATUS_I80) ? 1 : 0);
+}
+
+/**
+ * s3c_fb_set_cpu_timing - set cpu timing.
+ */
+static void s3c_fb_set_timing(struct s3c_fb *sfb, struct fb_info *info)
+{
+ struct s3c_fb_win *win = info->par;
+ struct s3c_fb_pd_win *windata = win->windata;
+ struct fb_var_screeninfo *var = &info->var;
+ void __iomem *regs = sfb->regs;
+ u32 reg = 0;
+
+ if (sfb->pdata->interface_mode == FIMD_VIDEO_MODE) {
+ reg = VIDTCON0_VBPD(var->upper_margin - 1) |
+ VIDTCON0_VFPD(var->lower_margin - 1) |
+ VIDTCON0_VSPW(var->vsync_len - 1);
+
+ writel(reg, regs + VIDTCON0);
+
+ reg = VIDTCON1_HBPD(var->left_margin - 1) |
+ VIDTCON1_HFPD(var->right_margin - 1) |
+ VIDTCON1_HSPW(var->hsync_len - 1);
+
+ writel(reg, regs + VIDTCON1);
+ } else if (sfb->pdata->interface_mode == FIMD_COMMAND_MODE) {
+ reg = LCD_CS_SETUP(windata->cmd_mode.cs_setup) |
+ LCD_WR_SETUP(windata->cmd_mode.wr_setup) |
+ LCD_WR_ACT(windata->cmd_mode.wr_act) |
+ LCD_WR_HOLD(windata->cmd_mode.wr_hold) |
+ I80IFEN_ENABLE;
+
+ writel(reg, regs + I80IFCONA0);
+ } else
+ dev_warn(sfb->dev, "wrong interface type.\n");
+}
+
+/**
* s3c_fb_set_par() - framebuffer request to set new framebuffer state.
* @info: The framebuffer to change.
*
@@ -318,17 +385,7 @@ static int s3c_fb_set_par(struct fb_info *info)
data |= VIDCON0_ENVID | VIDCON0_ENVID_F;
writel(data, regs + VIDCON0);
- data = VIDTCON0_VBPD(var->upper_margin - 1) |
- VIDTCON0_VFPD(var->lower_margin - 1) |
- VIDTCON0_VSPW(var->vsync_len - 1);
-
- writel(data, regs + VIDTCON0);
-
- data = VIDTCON1_HBPD(var->left_margin - 1) |
- VIDTCON1_HFPD(var->right_margin - 1) |
- VIDTCON1_HSPW(var->hsync_len - 1);
-
- writel(data, regs + VIDTCON1);
+ s3c_fb_set_timing(sfb, info);
data = VIDTCON2_LINEVAL(var->yres - 1) |
VIDTCON2_HOZVAL(var->xres - 1);
@@ -744,7 +801,8 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
struct s3c_fb_win **res)
{
struct fb_var_screeninfo *var;
- struct fb_videomode *initmode;
+ struct fb_videomode *videomode;
+ struct fb_cmdmode *cmdmode;
struct s3c_fb_pd_win *windata;
struct s3c_fb_win *win;
struct fb_info *fbinfo;
@@ -763,11 +821,20 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
}
windata = sfb->pdata->win[win_no];
- initmode = &windata->win_mode;
WARN_ON(windata->max_bpp == 0);
- WARN_ON(windata->win_mode.xres == 0);
- WARN_ON(windata->win_mode.yres == 0);
+
+ if (sfb->pdata->interface_mode == FIMD_VIDEO_MODE) {
+ WARN_ON(windata->win_mode.xres == 0);
+ WARN_ON(windata->win_mode.yres == 0);
+
+ videomode = &windata->win_mode;
+ } else {
+ WARN_ON(windata->cmd_mode.xres == 0);
+ WARN_ON(windata->cmd_mode.yres == 0);
+
+ cmdmode = &windata->cmd_mode;
+ }
win = fbinfo->par;
var = &fbinfo->var;
@@ -777,18 +844,19 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
win->index = win_no;
win->palette_buffer = (u32 *)(win + 1);
- ret = s3c_fb_alloc_memory(sfb, win);
- if (ret) {
- dev_err(sfb->dev, "failed to allocate display memory\n");
- return ret;
+ /* setup the initial video or cpu mode from the window */
+ if (sfb->pdata->interface_mode == FIMD_VIDEO_MODE)
+ fb_videomode_to_var(&fbinfo->var, videomode);
+ else {
+ var->xres = cmdmode->xres;
+ var->yres = cmdmode->yres;
+ var->xres_virtual = cmdmode->xres;
+ var->yres_virtual = cmdmode->yres;
+ var->xoffset = 0;
+ var->yoffset = 0;
+ var->pixclock = cmdmode->pixclock;
}
- /* setup the r/b/g positions for the window's palette */
- s3c_fb_init_palette(win_no, &win->palette);
-
- /* setup the initial video mode from the window */
- fb_videomode_to_var(&fbinfo->var, initmode);
-
fbinfo->fix.type = FB_TYPE_PACKED_PIXELS;
fbinfo->fix.accel = FB_ACCEL_NONE;
fbinfo->var.activate = FB_ACTIVATE_NOW;
@@ -798,6 +866,15 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
fbinfo->flags = FBINFO_FLAG_DEFAULT;
fbinfo->pseudo_palette = &win->pseudo_palette;
+ ret = s3c_fb_alloc_memory(sfb, win);
+ if (ret) {
+ dev_err(sfb->dev, "failed to allocate display memory\n");
+ return ret;
+ }
+
+ /* setup the r/b/g positions for the window's palette */
+ s3c_fb_init_palette(win_no, &win->palette);
+
/* prepare to actually start the framebuffer */
ret = s3c_fb_check_var(&fbinfo->var, fbinfo);
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20100702/c3e9c266/attachment-0001.html>
^ permalink raw reply related [flat|nested] 30+ messages in thread
* [PATCH 2/2] S5PV210: Add MIPI-DSI Driver.
[not found] ` <4C29C766.7010901@samsung.com>
@ 2010-07-02 8:51 ` InKi Dae
0 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-02 8:51 UTC (permalink / raw)
To: linux-arm-kernel, linux-fbdev-devel, akpm, Ben Dooks, kmpark
[-- Attachment #1.1: Type: text/plain, Size: 92040 bytes --]
this patch addes MIPI-DSI Driver.
to use this driver, some structures below should be added to machine
specific file.
struct dsim_config
- define clock info, data lane count and video mode info for MIPI-DSI
Controller.
struct dsim_lcd_config
- define interface mode, channel ID, Pixel format and so on.
struct s5p_platform_dsim
- define callbacks for initializing D-PHY, MIPI reset and trigger
releated interfaces of s3c-fb.c file.
Signed-off-by: InKi Dae <inki.dae@samsung.com <mailto:p.osciak@samsung.com>>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com
<mailto:kyungmin.park@samsung.com>>
---
diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
index 2a25ab4..f716678 100644
--- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
+++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
@@ -162,6 +162,7 @@
/* MIPI */
#define S5P_MIPI_DPHY_EN (3)
+#define S5P_MIPI_M_RESETN (1 << 1)
/* S5P_DAC_CONTROL */
#define S5P_DAC_ENABLE (1)
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index b1d82cc..3cd43f2 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -49,6 +49,9 @@ obj-$(CONFIG_S3C_DEV_RTC) += dev-rtc.o
obj-$(CONFIG_SAMSUNG_DEV_ADC) += dev-adc.o
obj-$(CONFIG_SAMSUNG_DEV_TS) += dev-ts.o
+# Device setup - MIPI-DSI
+obj-$(CONFIG_S5P_MIPI_DSI) += setup-dsim.o
+
# DMA support
obj-$(CONFIG_S3C_DMA) += dma.o
diff --git a/arch/arm/plat-samsung/include/plat/dsim.h b/arch/arm/plat-samsung/include/plat/dsim.h
new file mode 100644
index 0000000..28bc595
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/dsim.h
@@ -0,0 +1,470 @@
+/* linux/arm/arch/mach-s5pc110/include/mach/dsim.h
+ *
+ * Platform data header for Samsung MIPI-DSIM.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _DSIM_H
+#define _DSIM_H
+
+#include <linux/device.h>
+
+/* h/w configuration */
+#define MIPI_FIN 24000000
+#define DSIM_TIMEOUT_MS 5000
+#define DSIM_NO_OF_INTERRUPT 26
+#define DSIM_PM_STABLE_TIME 10
+
+#define DSIM_TRUE 1
+#define DSIM_FALSE 0
+
+#define DSIM_HEADER_FIFO_SZ 16
+
+enum dsim_interface_type {
+ DSIM_COMMAND = 0,
+ DSIM_VIDEO = 1,
+};
+
+enum dsim_state {
+ DSIM_STATE_RESET = 0,
+ DSIM_STATE_INIT = 1,
+ DSIM_STATE_STOP = 2,
+ DSIM_STATE_HSCLKEN = 3,
+ DSIM_STATE_ULPS = 4,
+};
+
+enum {
+ DSIM_NONE_STATE = 0,
+ DSIM_RESUME_COMPLETE = 1,
+ DSIM_FRAME_DONE = 2,
+};
+
+enum dsim_virtual_ch_no {
+ DSIM_VIRTUAL_CH_0 = 0,
+ DSIM_VIRTUAL_CH_1 = 1,
+ DSIM_VIRTUAL_CH_2 = 2,
+ DSIM_VIRTUAL_CH_3 = 3,
+};
+
+enum dsim_video_mode_type {
+ DSIM_NON_BURST_SYNC_EVENT = 0,
+ DSIM_NON_BURST_SYNC_PULSE = 2,
+ DSIM_BURST = 3,
+ DSIM_NON_VIDEO_MODE = 4,
+};
+
+enum dsim_fifo_state {
+ DSIM_RX_DATA_FULL = (1 << 25),
+ DSIM_RX_DATA_EMPTY = (1 << 24),
+ SFR_HEADER_FULL = (1 << 23),
+ SFR_HEADER_EMPTY = (1 << 22),
+ SFR_PAYLOAD_FULL = (1 << 21),
+ SFR_PAYLOAD_EMPTY = (1 << 20),
+ I80_HEADER_FULL = (1 << 19),
+ I80_HEADER_EMPTY = (1 << 18),
+ I80_PALOAD_FULL = (1 << 17),
+ I80_PALOAD_EMPTY = (1 << 16),
+ SUB_DISP_HEADER_FULL = (1 << 15),
+ SUB_DISP_HEADER_EMPTY = (1 << 14),
+ SUB_DISP_PAYLOAD_FULL = (1 << 13),
+ SUB_DISP_PAYLOAD_EMPTY = (1 << 12),
+ MAIN_DISP_HEADER_FULL = (1 << 11),
+ MAIN_DISP_HEADER_EMPTY = (1 << 10),
+ MAIN_DISP_PAYLOAD_FULL = (1 << 9),
+ MAIN_DISP_PAYLOAD_EMPTY = (1 << 8),
+};
+
+enum dsim_no_of_data_lane {
+ DSIM_DATA_LANE_1 = 0,
+ DSIM_DATA_LANE_2 = 1,
+ DSIM_DATA_LANE_3 = 2,
+ DSIM_DATA_LANE_4 = 3,
+};
+
+enum dsim_byte_clk_src {
+ DSIM_PLL_OUT_DIV8 = 0,
+ DSIM_EXT_CLK_DIV8 = 1,
+ DSIM_EXT_CLK_BYPASS = 2,
+};
+
+enum dsim_lane {
+ DSIM_LANE_DATA0 = (1 << 0),
+ DSIM_LANE_DATA1 = (1 << 1),
+ DSIM_LANE_DATA2 = (1 << 2),
+ DSIM_LANE_DATA3 = (1 << 3),
+ DSIM_LANE_DATA_ALL = 0xf,
+ DSIM_LANE_CLOCK = (1 << 4),
+ DSIM_LANE_ALL = DSIM_LANE_CLOCK | DSIM_LANE_DATA_ALL,
+};
+
+enum dsim_pixel_format {
+ DSIM_CMD_3BPP = 0,
+ DSIM_CMD_8BPP = 1,
+ DSIM_CMD_12BPP = 2,
+ DSIM_CMD_16BPP = 3,
+ DSIM_VID_16BPP_565 = 4,
+ DSIM_VID_18BPP_666PACKED = 5,
+ DSIM_18BPP_666LOOSELYPACKED = 6,
+ DSIM_24BPP_888 = 7,
+};
+
+enum dsim_lane_state {
+ DSIM_LANE_STATE_HS_READY,
+ DSIM_LANE_STATE_ULPS,
+ DSIM_LANE_STATE_STOP,
+ DSIM_LANE_STATE_LPDT,
+};
+
+enum dsim_transfer {
+ DSIM_TRANSFER_NEITHER = 0,
+ DSIM_TRANSFER_BYCPU = (1 << 7),
+ DSIM_TRANSFER_BYLCDC = (1 << 6),
+ DSIM_TRANSFER_BOTH = (0x3 << 6)
+};
+
+enum dsim_lane_change {
+ DSIM_NO_CHANGE = 0,
+ DSIM_DATA_LANE_CHANGE = 1,
+ DSIM_CLOCK_NALE_CHANGE = 2,
+ DSIM_ALL_LANE_CHANGE = 3,
+};
+
+enum dsim_int_src {
+ DSIM_ALL_OF_INTR = 0xffffffff,
+ DSIM_PLL_STABLE = (1 << 31),
+};
+
+enum dsim_data_id {
+ /* short packet types of packet types for command */
+ GEN_SHORT_WR_NO_PARA = 0x03,
+ GEN_SHORT_WR_1_PARA = 0x13,
+ GEN_SHORT_WR_2_PARA = 0x23,
+ GEN_RD_NO_PARA = 0x04,
+ GEN_RD_1_PARA = 0x14,
+ GEN_RD_2_PARA = 0x24,
+ DCS_WR_NO_PARA = 0x05,
+ DCS_WR_1_PARA = 0x15,
+ DCS_RD_NO_PARA = 0x06,
+ SET_MAX_RTN_PKT_SIZE = 0x37,
+
+ /* long packet types of packet types for command */
+ NULL_PKT = 0x09,
+ BLANKING_PKT = 0x19,
+ GEN_LONG_WR = 0x29,
+ DCS_LONG_WR = 0x39,
+
+ /* short packet types of generic command */
+ CMD_OFF = 0x02,
+ CMD_ON = 0x12,
+ SHUT_DOWN = 0x22,
+ TURN_ON = 0x32,
+
+ /* short packet types for video data */
+ VSYNC_START = 0x01,
+ VSYNC_END = 0x11,
+ HSYNC_START = 0x21,
+ HSYNC_END = 0x31,
+ EOT_PKT = 0x08,
+
+ /* long packet types for video data */
+ RGB565_PACKED = 0x0e,
+ RGB666_PACKED = 0x1e,
+ RGB666_LOOSLY = 0x2e,
+ RGB888_PACKED = 0x3e,
+};
+
+/**
+ * struct dsim_config - interface for configuring mipi-dsi controller.
+ *
+ * @auto_flush: enable or disable Auto flush of MD FIFO using VSYNC pulse.
+ * @eot_disable: enable or disable EoT packet in HS mode.
+ * @auto_vertical_cnt: specifies auto vertical count mode.
+ * in Video mode, the vertical line transition uses line counter
+ * configured by VSA, VBP, and Vertical resolution.
+ * If this bit is set to '1', the line counter does not use VSA and VBP
+ * registers.(in command mode, this variable is ignored)
+ * @hse: set horizontal sync event mode.
+ * In VSYNC pulse and Vporch area, MIPI DSI master transfers only HSYNC
+ * start packet to MIPI DSI slave at MIPI DSI spec1.1r02.
+ * this bit transfers HSYNC end packet in VSYNC pulse and Vporch area
+ * (in mommand mode, this variable is ignored)
+ * @hfp: specifies HFP disable mode.
+ * if this variable is set, DSI master ignores HFP area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @hbp: specifies HBP disable mode.
+ * if this variable is set, DSI master ignores HBP area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @hsa: specifies HSA disable mode.
+ * if this variable is set, DSI master ignores HSA area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @e_no_data_lane: specifies data lane count to be used by Master.
+ * @e_byte_clk: select byte clock source. (it must be DSIM_PLL_OUT_DIV8)
+ * DSIM_EXT_CLK_DIV8 and DSIM_EXT_CLK_BYPASSS are not supported.
+ * @pll_stable_time: specifies the PLL Timer for stability of the ganerated
+ * clock(System clock cycle base)
+ * if the timer value goes to 0x00000000, the clock stable bit of status
+ * and interrupt register is set.
+ * @esc_clk: specifies escape clock frequency for getting the escape clock
+ * prescaler value.
+ * @stop_holding_cnt: specifies the interval value between transmitting
+ * read packet(or write "set_tear_on" command) and BTA request.
+ * after transmitting read packet or write "set_tear_on" command,
+ * BTA requests to D-PHY automatically. this counter value specifies
+ * the interval between them.
+ * @bta_timeout: specifies the timer for BTA.
+ * this register specifies time out from BTA request to change
+ * the direction with respect to Tx escape clock.
+ * @rx_timeout: specifies the timer for LP Rx mode timeout.
+ * this register specifies time out on how long RxValid deasserts,
+ * after RxLpdt asserts with respect to Tx escape clock.
+ * - RxValid specifies Rx data valid indicator.
+ * - RxLpdt specifies an indicator that D-PHY is under RxLpdt mode.
+ * - RxValid and RxLpdt specifies signal from D-PHY.
+ * @e_lane_swap: swaps Dp/Dn channel of Clock lane or Data lane.
+ * if this bit is set, Dp and Dn channel would be swapped each other.
+ */
+struct dsim_config {
+ unsigned char auto_flush;
+ unsigned char eot_disable;
+
+ unsigned char auto_vertical_cnt;
+ unsigned char hse;
+ unsigned char hfp;
+ unsigned char hbp;
+ unsigned char hsa;
+
+ enum dsim_no_of_data_lane e_no_data_lane;
+ enum dsim_byte_clk_src e_byte_clk;
+
+ /*
+ * ===========================================
+ * | P | M | S | MHz |
+ * -------------------------------------------
+ * | 3 | 100 | 3 | 100 |
+ * | 3 | 100 | 2 | 200 |
+ * | 3 | 63 | 1 | 252 |
+ * | 4 | 100 | 1 | 300 |
+ * | 4 | 110 | 1 | 330 |
+ * | 12 | 350 | 1 | 350 |
+ * | 3 | 100 | 1 | 400 |
+ * | 4 | 150 | 1 | 450 |
+ * | 3 | 118 | 1 | 472 |
+ * | 12 | 250 | 0 | 500 |
+ * | 4 | 100 | 0 | 600 |
+ * | 3 | 81 | 0 | 648 |
+ * | 3 | 88 | 0 | 704 |
+ * | 3 | 90 | 0 | 720 |
+ * | 3 | 100 | 0 | 800 |
+ * | 12 | 425 | 0 | 850 |
+ * | 4 | 150 | 0 | 900 |
+ * | 12 | 475 | 0 | 950 |
+ * | 6 | 250 | 0 | 1000 |
+ * -------------------------------------------
+ */
+ unsigned char p;
+ unsigned short m;
+ unsigned char s;
+
+ unsigned int pll_stable_time;
+ unsigned long esc_clk;
+
+ unsigned short stop_holding_cnt;
+ unsigned char bta_timeout;
+ unsigned short rx_timeout;
+ enum dsim_video_mode_type e_lane_swap;
+};
+
+/**
+ * struct dsim_lcd_config - interface for configuring mipi-dsi based lcd panel.
+ *
+ * @e_interface: specifies interface to be used.(CPU or RGB interface)
+ * @parameter[0]: specifies virtual channel number
+ * that main or sub diaplsy uses.
+ * @parameter[1]: specifies pixel stream format for main or sub display.
+ * @parameter[2]: selects Burst mode in Video mode.
+ * in Non-burst mode, RGB data area is filled with RGB data and NULL
+ * packets, according to input bandwidth of RGB interface.
+ * In Burst mode, RGB data area is filled with RGB data only.
+ * @lcd_panel_info: pointer for lcd panel specific structure.
+ * this structure specifies width, height, timing and polarity and so on.
+ * @mipi_ddi_pd: pointer for lcd panel platform data.
+ */
+struct dsim_lcd_config {
+ enum dsim_interface_type e_interface;
+ unsigned int parameter[3];
+
+ void *lcd_panel_info;
+ void *mipi_ddi_pd;
+};
+
+struct dsim_global;
+struct fb_info;
+
+/**
+ * struct s5p_platform_dsim - interface to platform data for mipi-dsi driver.
+ *
+ * @clk_name: specifies clock name for mipi-dsi.
+ * @lcd_panel_name: specifies lcd panel name registered to mipi-dsi driver.
+ * lcd panel driver searched would be actived.
+ * @platfrom_rev: specifies platform revision number.
+ * revision number should become 1.
+ * @dsim_config: pointer of structure for configuring mipi-dsi controller.
+ * @dsim_lcd_info: pointer to structure for configuring
+ * mipi-dsi based lcd panel.
+ * @mipi_power: callback pointer for enabling or disabling mipi power.
+ * @part_reset: callback pointer for reseting mipi phy.
+ * @init_d_phy: callback pointer for enabing d_phy of dsi master.
+ * @get_fb_frame_done: callback pointer for getting frame done status of the
+ * display controller(FIMD).
+ * @trigger: callback pointer for triggering display controller(FIMD)
+ * in case of CPU mode.
+ * @delay_for_stabilization: specifies stable time.
+ * this delay needs when writing data on SFR
+ * after mipi mode became LP mode.
+ */
+struct s5p_platform_dsim {
+ char *clk_name;
+ char lcd_panel_name[64];
+ unsigned int platform_rev;
+
+ struct dsim_config *dsim_info;
+ struct dsim_lcd_config *dsim_lcd_info;
+
+ unsigned int delay_for_stabilization;
+
+ int (*mipi_power) (struct dsim_global *dsim, void *p_mipi_1_1v,
+ void *p_mipi_1_8v, int enable);
+ int (*part_reset) (struct dsim_global *dsim);
+ int (*init_d_phy) (struct dsim_global *dsim);
+ int (*get_fb_frame_done) (struct fb_info *info);
+ void (*trigger) (struct fb_info *info);
+};
+
+/**
+ * struct dsim_global - global interface for mipi-dsi driver.
+ *
+ * @dev: driver model representation of the device.
+ * @clock: pointer to MIPI-DSI clock of clock framework.
+ * @irq: interrupt number to MIPI-DSI controller.
+ * @reg_base: base address to memory mapped SRF of MIPI-DSI controller.
+ * (virtual address)
+ * @r_mipi_1_1v: pointer to regulator for MIPI 1.1v power.
+ * @r_mipi_1_8v: pointer to regulator for MIPI 1.8v power.
+ * @pd: pointer to MIPI-DSI driver platform data.
+ * @dsim_lcd_info: pointer to structure for configuring
+ * mipi-dsi based lcd panel.
+ * @lcd_panel_info: pointer for lcd panel specific structure.
+ * this structure specifies width, height, timing and polarity and so on.
+ * @mipi_ddi_pd: pointer for lcd panel platform data.
+ * @mipi_drv: pointer to driver structure for mipi-dsi based lcd panel.
+ * @s3cfb_notif: kernel notifier structure to be registered
+ * by device specific framebuffer driver.
+ * this notifier could be used by fb_blank of device specifiec
+ * framebuffer driver.
+ * @state: specifies status of MIPI-DSI controller.
+ * the status could be RESET, INIT, STOP, HSCLKEN and ULPS.
+ * @data_lane: specifiec enabled data lane number.
+ * this variable would be set by driver according to e_no_data_lane
+ * automatically.
+ * @e_clk_src: select byte clock source.
+ * this variable would be set by driver according to e_byte_clock
+ * automatically.
+ * @hs_clk: HS clock rate.
+ * this variable would be set by driver automatically.
+ * @byte_clk: Byte clock rate.
+ * this variable would be set by driver automatically.
+ * @escape_clk: ESCAPE clock rate.
+ * this variable would be set by driver automatically.
+ * @freq_band: indicates Bitclk frequency band for D-PHY global timing.
+ * Serial Clock(=ByteClk X 8) FreqBand[3:0]
+ * ~ 99.99 MHz 0000
+ * 100 ~ 119.99 MHz 0001
+ * 120 ~ 159.99 MHz 0010
+ * 160 ~ 199.99 MHz 0011
+ * 200 ~ 239.99 MHz 0100
+ * 140 ~ 319.99 MHz 0101
+ * 320 ~ 389.99 MHz 0110
+ * 390 ~ 449.99 MHz 0111
+ * 450 ~ 509.99 MHz 1000
+ * 510 ~ 559.99 MHz 1001
+ * 560 ~ 639.99 MHz 1010
+ * 640 ~ 689.99 MHz 1011
+ * 690 ~ 769.99 MHz 1100
+ * 770 ~ 869.99 MHz 1101
+ * 870 ~ 949.99 MHz 1110
+ * 950 ~ 1000 MHz 1111
+ * this variable would be calculated by driver automatically.
+ *
+ * @header_fifo_index: specifies header fifo index.
+ * this variable is not used yet.
+ */
+struct dsim_global {
+ struct device *dev;
+ struct clk *clock;
+ unsigned int irq;
+ unsigned int reg_base;
+
+ struct regulator *r_mipi_1_1v;
+ struct regulator *r_mipi_1_8v;
+
+ struct s5p_platform_dsim *pd;
+ struct dsim_config *dsim_info;
+ struct dsim_lcd_config *dsim_lcd_info;
+ struct fb_videomode *lcd_panel_info;
+ struct mipi_ddi_platform_data *mipi_ddi_pd;
+ struct mipi_lcd_driver *mipi_drv;
+ struct notifier_block s3cfb_notif;
+
+ unsigned char state;
+ unsigned int data_lane;
+ enum dsim_byte_clk_src e_clk_src;
+ unsigned long hs_clk;
+ unsigned long byte_clk;
+ unsigned long escape_clk;
+ unsigned char freq_band;
+
+ char header_fifo_index[DSIM_HEADER_FIFO_SZ];
+};
+
+/*
+ * driver structure for mipi-dsi based lcd panel.
+ *
+ * this structure should be registered by lcd panel driver.
+ * mipi-dsi driver seeks lcd panel registered through name field
+ * and calls these callback functions in appropriate time.
+ */
+struct mipi_lcd_driver {
+ s8 name[64];
+
+ s32 (*init)(struct device *dev);
+ void (*display_on)(struct device *dev);
+ s32 (*set_link)(struct mipi_ddi_platform_data *pd);
+ s32 (*probe)(struct device *dev);
+ s32 (*remove)(struct device *dev);
+ void (*shutdown)(struct device *dev);
+ s32 (*suspend)(struct device *dev, pm_message_t mesg);
+ s32 (*resume)(struct device *dev);
+};
+
+/*
+ * register mipi_lcd_driver object defined by lcd panel driver
+ * to mipi-dsi driver.
+ */
+extern int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv);
+
+/* reset MIPI PHY through MIPI PHY CONTROL REGISTER. */
+extern int s5p_dsim_part_reset(struct dsim_global *dsim);
+/* enable MIPI D-PHY and DSI Master block. */
+extern int s5p_dsim_init_d_phy(struct dsim_global *dsim);
+
+/* enable regulators to MIPI-DSI power. */
+extern int s5p_dsim_mipi_power(struct dsim_global *dsim, void *p_mipi_1_1v,
+ void *p_mipi_1_8v, int enable);
+
+#endif /* _DSIM_H */
diff --git a/arch/arm/plat-samsung/include/plat/mipi_ddi.h b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
new file mode 100644
index 0000000..57ed613
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
@@ -0,0 +1,98 @@
+/* linux/arm/arch/mach-s5pc110/include/mach/mipi_ddi.h
+ *
+ * definitions for DDI based MIPI-DSI.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _MIPI_DDI_H
+#define _MIPI_DDI_H
+
+enum mipi_ddi_interface {
+ RGB_IF = 0x4000,
+ I80_IF = 0x8000,
+ YUV_601 = 0x10000,
+ YUV_656 = 0x20000,
+ MIPI_VIDEO = 0x1000,
+ MIPI_COMMAND = 0x2000,
+};
+
+enum mipi_ddi_panel_select {
+ DDI_MAIN_LCD = 0,
+ DDI_SUB_LCD = 1,
+};
+
+enum mipi_ddi_model {
+ S6DR117 = 0,
+};
+
+enum mipi_ddi_parameter {
+ /* DSIM video interface parameter */
+ DSI_VIRTUAL_CH_ID = 0,
+ DSI_FORMAT = 1,
+ DSI_VIDEO_MODE_SEL = 2,
+};
+
+struct lcd_device;
+struct fb_info;
+
+struct mipi_ddi_platform_data {
+ void *dsim_data;
+ /*
+ * it is used for command mode lcd panel and
+ * when all contents of framebuffer in panel module are transfered
+ * to lcd panel it occurs te signal.
+ *
+ * note:
+ * - in case of command mode(cpu mode), it should be triggered only
+ * when TE signal of lcd panel and frame done interrupt of display
+ * controller or mipi controller occurs.
+ */
+ unsigned int te_irq;
+
+ /*
+ * it is used for PM stable time at te interrupt handler and
+ * could be used according to lcd panel characteristic or not.
+ */
+ unsigned int resume_complete;
+
+ int (*lcd_reset) (struct lcd_device *ld);
+ int (*lcd_power_on) (struct lcd_device *ld, int enable);
+ int (*backlight_on) (int enable);
+
+ /* transfer command to lcd panel at LP mode. */
+ int (*cmd_write) (void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+ int (*cmd_read) (void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+ /*
+ * get the status that all screen data have been transferred
+ * to mipi-dsi.
+ */
+ int (*get_dsim_frame_done) (void *dsim_data);
+ int (*clear_dsim_frame_done) (void *dsim_data);
+
+ /*
+ * changes mipi transfer mode to LP or HS mode.
+ *
+ * LP mode needs when some commands like gamma values transfers
+ * to lcd panel.
+ */
+ int (*change_dsim_transfer_mode) (int mode);
+
+ /* get frame done status of display controller. */
+ int (*get_fb_frame_done) (struct fb_info *info);
+ /* trigger display controller in case of cpu mode. */
+ void (*trigger) (struct fb_info *info);
+
+ unsigned int reset_delay;
+ unsigned int power_on_delay;
+ unsigned int power_off_delay;
+};
+
+#endif /* _MIPI_DDI_H */
diff --git a/arch/arm/plat-samsung/include/plat/regs-dsim.h b/arch/arm/plat-samsung/include/plat/regs-dsim.h
new file mode 100644
index 0000000..dc83089
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/regs-dsim.h
@@ -0,0 +1,281 @@
+/* linux/arch/arm/plat-s5pc11x/include/plat/regs-dsim.h
+ *
+ * Register definition file for Samsung MIPI-DSIM driver
+ *
+ * InKi Dae <inki.dae@samsung.com>, Copyright (c) 2009 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _REGS_DSIM_H
+#define _REGS_DSIM_H
+
+#define S5P_DSIM_STATUS (0x0) /* Status register */
+#define S5P_DSIM_SWRST (0x4) /* Software reset register */
+#define S5P_DSIM_CLKCTRL (0x8) /* Clock control register */
+#define S5P_DSIM_TIMEOUT (0xc) /* Time out register */
+#define S5P_DSIM_CONFIG (0x10) /* Configuration register */
+#define S5P_DSIM_ESCMODE (0x14) /* Escape mode register */
+
+/* Main display image resolution register */
+#define S5P_DSIM_MDRESOL (0x18)
+#define S5P_DSIM_MVPORCH (0x1c) /* Main display Vporch register */
+#define S5P_DSIM_MHPORCH (0x20) /* Main display Hporch register */
+#define S5P_DSIM_MSYNC (0x24) /* Main display sync area register */
+
+/* Sub display image resolution register */
+#define S5P_DSIM_SDRESOL (0x28)
+#define S5P_DSIM_INTSRC (0x2c) /* Interrupt source register */
+#define S5P_DSIM_INTMSK (0x30) /* Interrupt mask register */
+#define S5P_DSIM_PKTHDR (0x34) /* Packet Header FIFO register */
+#define S5P_DSIM_PAYLOAD (0x38) /* Payload FIFO register */
+#define S5P_DSIM_RXFIFO (0x3c) /* Read FIFO register */
+#define S5P_DSIM_FIFOTHLD (0x40) /* FIFO threshold level register */
+#define S5P_DSIM_FIFOCTRL (0x44) /* FIFO status and control register */
+
+/* FIFO memory AC characteristic register */
+#define S5P_DSIM_MEMACCHR (0x48)
+#define S5P_DSIM_PLLCTRL (0x4c) /* PLL control register */
+#define S5P_DSIM_PLLTMR (0x50) /* PLL timer register */
+#define S5P_DSIM_PHYACCHR (0x54) /* D-PHY AC characteristic register */
+#define S5P_DSIM_PHYACCHR1 (0x58) /* D-PHY AC characteristic register1 */
+
+/* DSIM_SWRST */
+#define DSIM_FUNCRST (1 << 16)
+#define DSIM_SWRST (1 << 0)
+
+/* S5P_DSIM_TIMEOUT */
+#define DSIM_LPDR_TOUT_SHIFT (0)
+#define DSIM_BTA_TOUT_SHIFT (16)
+#define DSIM_LPDR_TOUT(x) (((x) & 0xffff) << DSIM_LPDR_TOUT_SHIFT)
+#define DSIM_BTA_TOUT(x) (((x) & 0xff) << DSIM_BTA_TOUT_SHIFT)
+
+/* S5P_DSIM_CLKCTRL */
+#define DSIM_ESC_PRESCALER_SHIFT (0)
+#define DSIM_LANE_ESC_CLKEN_SHIFT (19)
+#define DSIM_BYTE_CLKEN_SHIFT (24)
+#define DSIM_BYTE_CLK_SRC_SHIFT (25)
+#define DSIM_PLL_BYPASS_SHIFT (27)
+#define DSIM_ESC_CLKEN_SHIFT (28)
+#define DSIM_TX_REQUEST_HSCLK_SHIFT (31)
+#define DSIM_ESC_PRESCALER(x) (((x) & 0xffff) << \
+ DSIM_ESC_PRESCALER_SHIFT)
+#define DSIM_LANE_ESC_CLKEN(x) (((x) & 0x1f) << \
+ DSIM_LANE_ESC_CLKEN_SHIFT)
+#define DSIM_BYTE_CLK_ENABLE (1 << DSIM_BYTE_CLKEN_SHIFT)
+#define DSIM_BYTE_CLK_DISABLE (0 << DSIM_BYTE_CLKEN_SHIFT)
+#define DSIM_BYTE_CLKSRC(x) (((x) & 0x3) << DSIM_BYTE_CLK_SRC_SHIFT)
+#define DSIM_PLL_BYPASS_PLL (0 << DSIM_PLL_BYPASS_SHIFT)
+#define DSIM_PLL_BYPASS_EXTERNAL (1 << DSIM_PLL_BYPASS_SHIFT)
+#define DSIM_ESC_CLKEN_ENABLE (1 << DSIM_ESC_CLKEN_SHIFT)
+#define DSIM_ESC_CLKEN_DISABLE (0 << DSIM_ESC_CLKEN_SHIFT)
+
+/* S5P_DSIM_CONFIG */
+#define DSIM_LANE_EN_SHIFT (0)
+#define DSIM_NUM_OF_DATALANE_SHIFT (5)
+#define DSIM_SUB_PIX_FORMAT_SHIFT (8)
+#define DSIM_MAIN_PIX_FORMAT_SHIFT (12)
+#define DSIM_SUB_VC_SHIFT (16)
+#define DSIM_MAIN_VC_SHIFT (18)
+#define DSIM_HSA_MODE_SHIFT (20)
+#define DSIM_HBP_MODE_SHIFT (21)
+#define DSIM_HFP_MODE_SHIFT (22)
+#define DSIM_HSE_MODE_SHIFT (23)
+#define DSIM_AUTO_MODE_SHIFT (24)
+#define DSIM_VIDEO_MODE_SHIFT (25)
+#define DSIM_BURST_MODE_SHIFT (26)
+#define DSIM_SYNC_INFORM_SHIFT (27)
+#define DSIM_EOT_R03_SHIFT (28)
+#define DSIM_LANE_ENx(x) ((1) << x)
+
+/* in case of Gemunus, it should be 0x1. */
+#define DSIM_NUM_OF_DATA_LANE(x) ((x) << 5)
+#define DSIM_SUB_PIX_FORMAT_3BPP (0 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_8BPP (1 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_12BPP (2 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_16BPP (3 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_16BPP_RGB (4 << 8) /* video mode only */
+#define DSIM_SUB_PIX_FORMAT_18BPP_PRGB (5 << 8) /* video mode only */
+#define DSIM_SUB_PIX_FORMAT_18BPP_LRGB (6 << 8) /* common */
+#define DSIM_SUB_PIX_FORMAT_24BPP_RGB (7 << 8) /* common */
+#define DSIM_MAIN_PIX_FORMAT_3BPP (0 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_8BPP (1 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_12BPP (2 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_16BPP (3 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_16BPP_RGB (4 << 12) /* video mode only */
+#define DSIM_MAIN_PIX_FORMAT_18BPP_PRGB (5 << 12) /* video mode only */
+#define DSIM_MAIN_PIX_FORMAT_18BPP_LRGB (6 << 12) /* common */
+#define DSIM_MAIN_PIX_FORMAT_24BPP_RGB (7 << 12) /* common */
+
+/* Virtual channel number for sub display */
+#define DSIM_SUB_VC(x) (((x) & 0x3) << 16)
+/* Virtual channel number for main display */
+#define DSIM_MAIN_VC(x) (((x) & 0x3) << 18)
+#define DSIM_HSA_MODE_ENABLE (1 << 20)
+#define DSIM_HSA_MODE_DISABLE (0 << 20)
+#define DSIM_HBP_MODE_ENABLE (1 << 21)
+#define DSIM_HBP_MODE_DISABLE (0 << 21)
+#define DSIM_HFP_MODE_ENABLE (1 << 22)
+#define DSIM_HFP_MODE_DISABLE (0 << 22)
+#define DSIM_HSE_MODE_ENABLE (1 << 23)
+#define DSIM_HSE_MODE_DISABLE (0 << 23)
+#define DSIM_AUTO_MODE (1 << 24)
+#define DSIM_CONFIGURATION_MODE (0 << 24)
+#define DSIM_VIDEO_MODE (1 << 25)
+#define DSIM_COMMAND_MODE (0 << 25)
+#define DSIM_BURST_MODE (1 << 26)
+#define DSIM_NON_BURST_MODE (0 << 26)
+#define DSIM_SYNC_INFORM_PULSE (1 << 27)
+#define DSIM_SYNC_INFORM_EVENT (0 << 27)
+/* enable EoT packet generation for V1.01r11 */
+#define DSIM_EOT_R03_ENABLE (0 << 28)
+/* disable EoT packet generation for V1.01r03 */
+#define DSIM_EOT_R03_DISABLE (1 << 28)
+
+/* S5P_DSIM_ESCMODE */
+#define DSIM_STOP_STATE_CNT_SHIFT (21)
+#define DSIM_STOP_STATE_CNT(x) (((x) & 0x3ff) << \
+ DSIM_STOP_STATE_CNT_SHIFT)
+#define DSIM_FORCE_STOP_STATE_SHIFT (20)
+#define DSIM_FORCE_BTA_SHIFT (16)
+#define DSIM_CMD_LPDT_HS_MODE (0 << 7)
+#define DSIM_CMD_LPDT_LP_MODE (1 << 7)
+#define DSIM_TX_LPDT_HS_MODE (0 << 6)
+#define DSIM_TX_LPDT_LP_MODE (1 << 6)
+#define DSIM_TX_TRIGGER_RST_SHIFT (4)
+#define DSIM_TX_UIPS_DAT_SHIFT (3)
+#define DSIM_TX_UIPS_EXIT_SHIFT (2)
+#define DSIM_TX_UIPS_CLK_SHIFT (1)
+#define DSIM_TX_UIPS_CLK_EXIT_SHIFT (0)
+
+/* S5P_DSIM_MDRESOL */
+#define DSIM_MAIN_STAND_BY (1 << 31)
+#define DSIM_MAIN_NOT_READY (0 << 31)
+#define DSIM_MAIN_VRESOL(x) (((x) & 0x7ff) << 16)
+#define DSIM_MAIN_HRESOL(x) (((x) & 0X7ff) << 0)
+
+/* S5P_DSIM_MVPORCH */
+#define DSIM_CMD_ALLOW_SHIFT (28)
+#define DSIM_STABLE_VFP_SHIFT (16)
+#define DSIM_MAIN_VBP_SHIFT (0)
+#define DSIM_CMD_ALLOW_MASK (0xf << DSIM_CMD_ALLOW_SHIFT)
+#define DSIM_STABLE_VFP_MASK (0x7ff << DSIM_STABLE_VFP_SHIFT)
+#define DSIM_MAIN_VBP_MASK (0x7ff << DSIM_MAIN_VBP_SHIFT)
+#define DSIM_CMD_ALLOW(x) (((x) & 0xf) << DSIM_CMD_ALLOW_SHIFT)
+#define DSIM_STABLE_VFP(x) (((x) & 0x7ff) << DSIM_STABLE_VFP_SHIFT)
+#define DSIM_MAIN_VBP(x) (((x) & 0x7ff) << DSIM_MAIN_VBP_SHIFT)
+
+/* S5P_DSIM_MHPORCH */
+#define DSIM_MAIN_HFP_SHIFT (16)
+#define DSIM_MAIN_HBP_SHIFT (0)
+#define DSIM_MAIN_HFP_MASK ((0xffff) << DSIM_MAIN_HFP_SHIFT)
+#define DSIM_MAIN_HBP_MASK ((0xffff) << DSIM_MAIN_HBP_SHIFT)
+#define DSIM_MAIN_HFP(x) (((x) & 0xffff) << DSIM_MAIN_HFP_SHIFT)
+#define DSIM_MAIN_HBP(x) (((x) & 0xffff) << DSIM_MAIN_HBP_SHIFT)
+
+/* S5P_DSIM_MSYNC */
+#define DSIM_MAIN_VSA_SHIFT (22)
+#define DSIM_MAIN_HSA_SHIFT (0)
+#define DSIM_MAIN_VSA_MASK ((0x3ff) << DSIM_MAIN_VSA_SHIFT)
+#define DSIM_MAIN_HSA_MASK ((0xffff) << DSIM_MAIN_HSA_SHIFT)
+#define DSIM_MAIN_VSA(x) (((x) & 0x3ff) << DSIM_MAIN_VSA_SHIFT)
+#define DSIM_MAIN_HSA(x) (((x) & 0xffff) << DSIM_MAIN_HSA_SHIFT)
+
+/* S5P_DSIM_SDRESOL */
+#define DSIM_SUB_STANDY_SHIFT (31)
+#define DSIM_SUB_VRESOL_SHIFT (16)
+#define DSIM_SUB_HRESOL_SHIFT (0)
+#define DSIM_SUB_STANDY_MASK ((0x1) << DSIM_SUB_STANDY_SHIFT)
+#define DSIM_SUB_VRESOL_MASK ((0x7ff) << DSIM_SUB_VRESOL_SHIFT)
+#define DSIM_SUB_HRESOL_MASK ((0x7ff) << DSIM_SUB_HRESOL_SHIFT)
+#define DSIM_SUB_STANDY (1 << DSIM_SUB_STANDY_SHIFT)
+#define DSIM_SUB_NOT_READY (0 << DSIM_SUB_STANDY_SHIFT)
+#define DSIM_SUB_VRESOL(x) (((x) & 0x7ff) << DSIM_SUB_VRESOL_SHIFT)
+#define DSIM_SUB_HRESOL(x) (((x) & 0x7ff) << DSIM_SUB_HRESOL_SHIFT)
+
+/* S5P_DSIM_INTSRC */
+#define INTSRC_ERR_CONTENT_LP1 (1 << 0)
+#define INTSRC_ERR_CONTENT_LP0 (1 << 1)
+#define INTSRC_ERR_CONTROL0 (1 << 2)
+#define INTSRC_ERR_CONTROL1 (1 << 3)
+#define INTSRC_ERR_CONTROL2 (1 << 4)
+#define INTSRC_ERR_CONTROL3 (1 << 5)
+#define INTSRC_ERR_SYNC0 (1 << 6)
+#define INTSRC_ERR_SYNC1 (1 << 7)
+#define INTSRC_ERR_SYNC2 (1 << 8)
+#define INTSRC_ERR_SYNC3 (1 << 9)
+#define INTSRC_ERR_ESC0 (1 << 10)
+#define INTSRC_ERR_ESC1 (1 << 11)
+#define INTSRC_ERR_ESC2 (1 << 12)
+#define INTSRC_ERR_ESC3 (1 << 13)
+#define INTSRC_ERR_RX_CRC (1 << 14)
+#define INTSRC_ERR_RX_ECC (1 << 15)
+#define INTSRC_RX_ACK (1 << 16)
+#define INTSRC_RX_TE (1 << 17)
+#define INTSRC_RX_DAT_DONE (1 << 18)
+#define INTSRC_TA_TOUT (1 << 20)
+#define INTSRC_LPDR_TOUT (1 << 21)
+#define INTSRC_FRAME_DONE (1 << 24)
+#define INTSRC_BUS_TURN_OVER (1 << 25)
+#define INTSRC_SYNC_OVERRIDE (1 << 28)
+#define INTSRC_SFR_FIFO_EMPTY (1 << 29)
+#define INTSRC_SW_RST_RELEASE (1 << 30)
+#define INTSRC_PLL_STABLE (1 << 31)
+
+/* S5P_DSIM_INTMSK */
+#define INTMSK_ERR_CONTENT_LP1 (1 << 0)
+#define INTMSK_ERR_CONTENT_LP0 (1 << 1)
+#define INTMSK_ERR_CONTROL0 (1 << 2)
+#define INTMSK_ERR_CONTROL1 (1 << 3)
+#define INTMSK_ERR_CONTROL2 (1 << 4)
+#define INTMSK_ERR_CONTROL3 (1 << 5)
+#define INTMSK_ERR_SYNC0 (1 << 6)
+#define INTMSK_ERR_SYNC1 (1 << 7)
+#define INTMSK_ERR_SYNC2 (1 << 8)
+#define INTMSK_ERR_SYNC3 (1 << 9)
+#define INTMSK_ERR_ESC0 (1 << 10)
+#define INTMSK_ERR_ESC1 (1 << 11)
+#define INTMSK_ERR_ESC2 (1 << 12)
+#define INTMSK_ERR_ESC3 (1 << 13)
+#define INTMSK_ERR_RX_CRC (1 << 14)
+#define INTMSK_ERR_RX_ECC (1 << 15)
+#define INTMSK_RX_ACK (1 << 16)
+#define INTMSK_RX_TE (1 << 17)
+#define INTMSK_RX_DAT_DONE (1 << 18)
+#define INTMSK_TA_TOUT (1 << 20)
+#define INTMSK_LPDR_TOUT (1 << 21)
+#define INTMSK_FRAME_DONE (1 << 24)
+#define INTMSK_BUS_TURN_OVER (1 << 25)
+#define INTMSK_SFR_FIFO_EMPTY (1 << 29)
+#define INTMSK_SW_RST_RELEASE (1 << 30)
+#define INTMSK_PLL_STABLE (1 << 31)
+
+/* S5P_DSIM_PKTHDR */
+#define DSIM_PACKET_HEADER_DI(x) (((x) & 0xff) << 0)
+/* Word count lower byte for long packet */
+#define DSIM_PACKET_HEADER_DAT0(x) (((x) & 0xff) << 8)
+/* Word count upper byte for long packet */
+#define DSIM_PACKET_HEADER_DAT1(x) (((x) & 0xff) << 16)
+
+/* S5P_DSIM_FIFOCTRL */
+#define DSIM_RX_FIFO (1 << 4)
+#define DSIM_TX_SFR_FIFO (1 << 3)
+#define DSIM_I80_FIFO (1 << 2)
+#define DSIM_SUB_DISP_FIFO (1 << 1)
+#define DSIM_MAIN_DISP_FIFO (1 << 0)
+
+/* S5P_DSIM_PHYACCHR */
+#define DSIM_AFC_CTL(x) (((x) & 0x7) << 5)
+#define DSIM_AFC_ENABLE (1 << 14)
+#define DSIM_AFC_DISABLE (0 << 14)
+
+/* S5P_DSIM_PLLCTRL */
+#define DSIM_PMS_SHIFT (1)
+#define DSIM_PLL_EN_SHIFT (23)
+#define DSIM_FREQ_BAND_SHIFT (24)
+#define DSIM_PMS(x) (((x) & 0x7ffff) << DSIM_PMS_SHIFT)
+#define DSIM_FREQ_BAND(x) (((x) & 0xf) << DSIM_FREQ_BAND_SHIFT)
+
+#endif /* _REGS_DSIM_H */
diff --git a/arch/arm/plat-samsung/setup-dsim.c b/arch/arm/plat-samsung/setup-dsim.c
new file mode 100644
index 0000000..833ade2
--- /dev/null
+++ b/arch/arm/plat-samsung/setup-dsim.c
@@ -0,0 +1,161 @@
+/*
+ * S5PC110 MIPI-DSIM driver.
+ *
+ * Author: InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/regulator/consumer.h>
+
+#include <mach/map.h>
+#include <mach/regs-clock.h>
+
+#include <plat/dsim.h>
+#include <plat/clock.h>
+#include <plat/regs-dsim.h>
+
+static int s5p_dsim_enable_d_phy(struct dsim_global *dsim, unsigned int enable)
+{
+ unsigned int reg;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim is NULL.\n");
+ return -EFAULT;
+ }
+
+ reg = (readl(S5P_MIPI_CONTROL)) & ~(1 << 0);
+ reg |= (enable << 0);
+ writel(reg, S5P_MIPI_CONTROL);
+
+ dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
+
+ return 0;
+}
+
+static int s5p_dsim_enable_dsi_master(struct dsim_global *dsim,
+ unsigned int enable)
+{
+ unsigned int reg;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim is NULL.\n");
+ return -EFAULT;
+ }
+
+ reg = (readl(S5P_MIPI_CONTROL)) & ~(1 << 2);
+ reg |= (enable << 2);
+ writel(reg, S5P_MIPI_CONTROL);
+
+ dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
+
+ return 0;
+}
+
+int s5p_dsim_part_reset(struct dsim_global *dsim)
+{
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim is NULL.\n");
+ return -EFAULT;
+ }
+
+ writel(S5P_MIPI_M_RESETN, S5P_MIPI_PHY_CON0);
+
+ dev_dbg(dsim->dev, "%s\n", __func__);
+
+ return 0;
+}
+
+int s5p_dsim_init_d_phy(struct dsim_global *dsim)
+{
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim is NULL.\n");
+ return -EFAULT;
+ }
+
+ /* enable D-PHY */
+ s5p_dsim_enable_d_phy(dsim, 1);
+
+ /* enable DSI master block */
+ s5p_dsim_enable_dsi_master(dsim, 1);
+
+ dev_dbg(dsim->dev, "%s\n", __func__);
+
+ return 0;
+}
+
+int s5p_dsim_mipi_power(struct dsim_global *dsim, void *p_mipi_1_1v,
+ void *p_mipi_1_8v, int enable)
+{
+ struct regulator *r_mipi_1_1v = NULL, *r_mipi_1_8v = NULL;
+ int ret = -1;
+
+ r_mipi_1_1v = (struct regulator *) p_mipi_1_1v;
+ r_mipi_1_8v = (struct regulator *) p_mipi_1_8v;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (IS_ERR(r_mipi_1_1v) || IS_ERR(r_mipi_1_8v)) {
+ dev_err(dsim->dev, "r_mipi_1_1v or r_mipi_1_8v is NULL.\n");
+ return -EINVAL;
+ }
+
+ if (enable) {
+ if (r_mipi_1_1v)
+ ret = regulator_enable(r_mipi_1_1v);
+
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to enable regulator mipi_1_1v.\n");
+ return ret;
+ }
+
+ if (r_mipi_1_8v)
+ ret = regulator_enable(r_mipi_1_8v);
+
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to enable regulator mipi_1_8v.\n");
+ return ret;
+ }
+ } else {
+ if (r_mipi_1_1v)
+ ret = regulator_force_disable(r_mipi_1_1v);
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to disable regulator mipi_1_1v.\n");
+ return ret;
+ }
+
+ if (r_mipi_1_8v)
+ ret = regulator_force_disable(r_mipi_1_8v);
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to disable regulator mipi_1_8v.\n");
+ return ret;
+ }
+ }
+
+ return ret;
+}
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 3d94a14..c916ac1 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1930,7 +1930,7 @@ config FB_TMIO_ACCELL
config FB_S3C
tristate "Samsung S3C framebuffer support"
- depends on FB && ARCH_S3C64XX
+ depends on FB && (ARCH_S3C64XX || ARCH_S5PV210)
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -1975,6 +1975,13 @@ config FB_S3C2410_DEBUG
Turn on debugging messages. Note that you can set/unset at run time
through sysfs
+config S5P_MIPI_DSI
+ tristate "Samsung SoC MIPI-DSI support."
+ depends on FB_S3C && ARCH_S5PV210
+ default n
+ ---help---
+ This enables support for MIPI-DSI device.
+
config FB_NUC900
bool "NUC900 LCD framebuffer support"
depends on FB && ARCH_W90X900
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index ddc2af2..d841433 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -115,6 +115,8 @@ obj-$(CONFIG_FB_SH7760) += sh7760fb.o
obj-$(CONFIG_FB_IMX) += imxfb.o
obj-$(CONFIG_FB_S3C) += s3c-fb.o
obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o
+obj-$(CONFIG_S5P_MIPI_DSI) += s5p-dsim.o s5p_dsim_common.o \
+ s5p_dsim_lowlevel.o
obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o
obj-$(CONFIG_FB_COBALT) += cobalt_lcdfb.o
obj-$(CONFIG_FB_PNX4008_DUM) += pnx4008/
diff --git a/drivers/video/s5p-dsim.c b/drivers/video/s5p-dsim.c
new file mode 100644
index 0000000..96893bc
--- /dev/null
+++ b/drivers/video/s5p-dsim.c
@@ -0,0 +1,483 @@
+/* linux/drivers/video/samsung/s5p-dsim.c
+ *
+ * Samsung MIPI-DSIM driver.
+ *
+ * InKi Dae, <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/ctype.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/memory.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/kthread.h>
+#include <linux/regulator/consumer.h>
+#include <linux/notifier.h>
+
+#include <plat/fb.h>
+#include <plat/regs-dsim.h>
+#include <plat/dsim.h>
+#include <plat/mipi_ddi.h>
+
+#include <mach/map.h>
+
+#include "s5p_dsim_common.h"
+
+struct mipi_lcd_info {
+ struct list_head list;
+ struct mipi_lcd_driver *mipi_drv;
+};
+
+static LIST_HEAD(lcd_info_list);
+static DEFINE_MUTEX(mipi_lock);
+
+struct dsim_global dsim;
+
+struct s5p_platform_dsim *to_dsim_plat(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ return (struct s5p_platform_dsim *)pdev->dev.platform_data;
+}
+
+/*
+ * notifier callback function for fb_blank
+ * - this function would be called by device specific fb_blank.
+ */
+static int s5p_dsim_notifier_callback(struct notifier_block *self,
+ unsigned long event, void *data)
+{
+ pm_message_t pm;
+
+ pm.event = 0;
+
+ switch (event) {
+ case FB_BLANK_UNBLANK:
+ case FB_BLANK_NORMAL:
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
+ (void *) dsim.r_mipi_1_8v, 1);
+
+ clk_enable(dsim.clock);
+
+ if (dsim.mipi_drv->resume)
+ dsim.mipi_drv->resume(dsim.dev);
+
+ s5p_dsim_init_dsim(&dsim);
+ s5p_dsim_init_link(&dsim);
+
+ s5p_dsim_set_hs_enable(&dsim);
+ s5p_dsim_set_data_transfer_mode(&dsim,
+ DSIM_TRANSFER_BYCPU, 1);
+
+ /* it needs delay for stabilization */
+ mdelay(dsim.pd->delay_for_stabilization);
+
+ if (dsim.mipi_drv->init)
+ dsim.mipi_drv->init(dsim.dev);
+ else
+ dev_warn(dsim.dev, "init func is null.\n");
+
+ s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
+
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
+ dsim.mipi_ddi_pd->resume_complete = 1;
+
+ dev_dbg(dsim.dev, "FB_BLANK_NORMAL or UNBLANK.\n");
+
+ break;
+ case FB_BLANK_POWERDOWN:
+ dsim.mipi_ddi_pd->resume_complete = 0;
+
+ if (dsim.mipi_drv->suspend)
+ dsim.mipi_drv->suspend(dsim.dev, pm);
+
+ clk_disable(dsim.clock);
+
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
+ (void *) dsim.r_mipi_1_8v, 0);
+
+ dev_dbg(dsim.dev, "FB_BLANK_POWERDOWN.\n");
+ break;
+ default:
+ dev_warn(dsim.dev, "unknown FB_BLANK command.\n");
+ break;
+ }
+
+ return 0;
+}
+
+static int s5p_dsim_register_notif(struct device *dev)
+{
+ memset(&dsim.s3cfb_notif, 0, sizeof(struct notifier_block));
+ dsim.s3cfb_notif.notifier_call = s5p_dsim_notifier_callback;
+
+ return 0/*s3cfb_register_client(&dsim.s3cfb_notif)*/;
+}
+
+static irqreturn_t s5p_dsim_interrupt_handler(int irq, void *dev_id)
+{
+ disable_irq(irq);
+
+ /* additional work. */
+
+ enable_irq(irq);
+
+ return IRQ_HANDLED;
+}
+
+int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv)
+{
+ struct mipi_lcd_info *lcd_info = NULL;
+
+ lcd_info = kmalloc(sizeof(struct mipi_lcd_info), GFP_KERNEL);
+ if (lcd_info == NULL)
+ return -ENOMEM;
+
+ lcd_info->mipi_drv = kmalloc(sizeof(struct mipi_lcd_driver),
+ GFP_KERNEL);
+ if (lcd_info->mipi_drv == NULL)
+ return -ENOMEM;
+
+
+ memcpy(lcd_info->mipi_drv, lcd_drv, sizeof(struct mipi_lcd_driver));
+
+ mutex_lock(&mipi_lock);
+ list_add_tail(&lcd_info->list, &lcd_info_list);
+ mutex_unlock(&mipi_lock);
+
+ dev_dbg(dsim.dev, "registered panel driver(%s) to mipi-dsi driver.\n",
+ lcd_drv->name);
+
+ return 0;
+}
+
+/*
+ * This function is wrapper for changing transfer mode.
+ * It is used to in panel driver before and after changing gamma value.
+ */
+static int s5p_dsim_change_transfer_mode(int mode)
+{
+ if (mode < 0 || mode > 1) {
+ dev_err(dsim.dev, "mode range should be 0 or 1.\n");
+ return -EFAULT;
+ }
+
+ if (mode == 0)
+ s5p_dsim_set_data_transfer_mode(&dsim,
+ DSIM_TRANSFER_BYCPU, mode);
+ else
+ s5p_dsim_set_data_transfer_mode(&dsim,
+ DSIM_TRANSFER_BYLCDC, mode);
+
+ return 0;
+}
+
+struct mipi_lcd_driver *scan_mipi_driver(const char *name)
+{
+ struct mipi_lcd_info *lcd_info;
+ struct mipi_lcd_driver *mipi_drv = NULL;
+
+ mutex_lock(&mipi_lock);
+
+ dev_dbg(dsim.dev, "find lcd panel driver(%s).\n",
+ name);
+
+ list_for_each_entry(lcd_info, &lcd_info_list, list) {
+ mipi_drv = lcd_info->mipi_drv;
+
+ if ((strcmp(mipi_drv->name, name)) == 0) {
+ mutex_unlock(&mipi_lock);
+ dev_dbg(dsim.dev, "found!!!(%s).\n", mipi_drv->name);
+ return mipi_drv;
+ }
+ }
+
+ dev_warn(dsim.dev, "failed to find lcd panel driver(%s).\n",
+ name);
+
+ mutex_unlock(&mipi_lock);
+
+ return NULL;
+}
+
+static int s5p_dsim_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ int ret = -1;
+
+ dsim.pd = to_dsim_plat(&pdev->dev);
+ dsim.dev = &pdev->dev;
+
+ /* set dsim config data, dsim lcd config data and lcd panel data. */
+ dsim.dsim_info = dsim.pd->dsim_info;
+ dsim.dsim_lcd_info = dsim.pd->dsim_lcd_info;
+ dsim.lcd_panel_info =
+ (struct fb_videomode *) dsim.dsim_lcd_info->lcd_panel_info;
+ dsim.mipi_ddi_pd =
+ (struct mipi_ddi_platform_data *)
+ dsim.dsim_lcd_info->mipi_ddi_pd;
+
+ dsim.mipi_ddi_pd->resume_complete = 0;
+
+ dsim.r_mipi_1_1v = regulator_get(&pdev->dev, "VMIPI_1.1V");
+ if (IS_ERR(dsim.r_mipi_1_1v)) {
+ dev_err(&pdev->dev, "failed to get regulator VMIPI_1.1V.\n");
+ goto regulator_get_err;
+ }
+
+ dsim.r_mipi_1_8v = regulator_get(&pdev->dev, "VMIPI_1.8V");
+ if (IS_ERR(dsim.r_mipi_1_8v)) {
+ dev_err(&pdev->dev, "failed to get regulator VMIPI_1.8V.\n");
+ goto regulator_get_err;
+ }
+
+ /* clock */
+ dsim.clock = clk_get(&pdev->dev, dsim.pd->clk_name);
+ if (IS_ERR(dsim.clock)) {
+ dev_err(&pdev->dev, "failed to get dsim clock source\n");
+ return -EINVAL;
+ }
+
+ clk_enable(dsim.clock);
+
+ /* io memory */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to get io memory region\n");
+ ret = -EINVAL;
+ goto err_clk_disable;
+ }
+
+ /* request mem region */
+ res = request_mem_region(res->start,
+ res->end - res->start + 1, pdev->name);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to request io memory region\n");
+ ret = -EINVAL;
+ goto err_clk_disable;
+ }
+
+ /* ioremap for register block */
+ dsim.reg_base = (unsigned int) ioremap(res->start,
+ res->end - res->start + 1);
+ if (!dsim.reg_base) {
+ dev_err(&pdev->dev, "failed to remap io region\n");
+ ret = -EINVAL;
+ goto err_clk_disable;
+ }
+
+ /* it is used for MIPI-DSI based lcd panel driver. */
+ dsim.mipi_ddi_pd->dsim_data = (void *)&dsim;
+
+ /*
+ * it uses frame done interrupt handler
+ * only in case of MIPI Video mode.
+ */
+ if (dsim.dsim_lcd_info->e_interface == DSIM_VIDEO) {
+ dsim.irq = platform_get_irq(pdev, 0);
+ if (request_irq(dsim.irq, s5p_dsim_interrupt_handler,
+ IRQF_TRIGGER_RISING, "mipi-dsi", &dsim)) {
+ dev_err(&pdev->dev, "request_irq failed.\n");
+ goto err_trigger_irq;
+ }
+ }
+
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
+ (void *) dsim.r_mipi_1_8v, 1);
+ else {
+ dev_err(&pdev->dev, "mipi_power is NULL.\n");
+ goto mipi_power_err;
+ }
+
+ /* find lcd panel driver registered to mipi-dsi driver. */
+ dsim.mipi_drv = scan_mipi_driver(dsim.pd->lcd_panel_name);
+ if (dsim.mipi_drv == NULL) {
+ dev_err(&pdev->dev, "mipi_drv is NULL.\n");
+ goto mipi_drv_err;
+ }
+
+ /* register callback functions that lcd panel driver needs. */
+ dsim.mipi_ddi_pd->cmd_write = s5p_dsim_wr_data;
+ dsim.mipi_ddi_pd->cmd_read = NULL;
+ dsim.mipi_ddi_pd->get_dsim_frame_done =
+ s5p_dsim_get_frame_done_status;
+ dsim.mipi_ddi_pd->clear_dsim_frame_done = s5p_dsim_clear_frame_done;
+ dsim.mipi_ddi_pd->change_dsim_transfer_mode =
+ s5p_dsim_change_transfer_mode;
+ dsim.mipi_ddi_pd->get_fb_frame_done = dsim.pd->get_fb_frame_done;
+ dsim.mipi_ddi_pd->trigger = dsim.pd->trigger;
+
+ /* set lcd panel driver link */
+ ret = dsim.mipi_drv->set_link(dsim.mipi_ddi_pd);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to set link.\n");
+ goto mipi_drv_err;
+ }
+
+ dsim.mipi_drv->probe(&pdev->dev);
+
+ s5p_dsim_init_dsim(&dsim);
+ s5p_dsim_init_link(&dsim);
+
+ s5p_dsim_set_hs_enable(&dsim);
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
+
+ /* it needs delay for stabilization */
+ mdelay(dsim.pd->delay_for_stabilization);
+
+ /* initialize lcd panel */
+ if (dsim.mipi_drv->init)
+ dsim.mipi_drv->init(&pdev->dev);
+ else
+ dev_warn(&pdev->dev, "init func is null.\n");
+
+ if (dsim.mipi_drv->display_on)
+ dsim.mipi_drv->display_on(&pdev->dev);
+ else
+ dev_warn(&pdev->dev, "display_on func is null.\n");
+
+ s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
+
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
+
+ s5p_dsim_register_notif(&pdev->dev);
+
+ /* in case of command mode, trigger. */
+ if (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) {
+ if (dsim.pd->trigger)
+ dsim.pd->trigger(registered_fb[0]);
+ else
+ dev_warn(&pdev->dev, "trigger is null.\n");
+ }
+
+ dev_info(&pdev->dev, "mipi-dsi driver(%s mode) has been probed.\n",
+ (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) ?
+ "CPU" : "RGB");
+
+ return 0;
+
+err_trigger_irq:
+mipi_drv_err:
+ dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
+ (void *) dsim.r_mipi_1_8v, 0);
+
+mipi_power_err:
+ iounmap((void __iomem *) dsim.reg_base);
+
+err_clk_disable:
+ clk_disable(dsim.clock);
+
+regulator_get_err:
+
+ return ret;
+
+}
+
+static int s5p_dsim_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+#ifdef CONFIG_PM
+int s5p_dsim_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ dsim.mipi_ddi_pd->resume_complete = 0;
+
+ if (dsim.mipi_drv->suspend)
+ dsim.mipi_drv->suspend(&pdev->dev, state);
+
+ clk_disable(dsim.clock);
+
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
+ (void *) dsim.r_mipi_1_8v, 0);
+
+ return 0;
+}
+
+int s5p_dsim_resume(struct platform_device *pdev)
+{
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
+ (void *) dsim.r_mipi_1_8v, 1);
+
+ clk_enable(dsim.clock);
+
+ if (dsim.mipi_drv->resume)
+ dsim.mipi_drv->resume(&pdev->dev);
+
+ s5p_dsim_init_dsim(&dsim);
+ s5p_dsim_init_link(&dsim);
+
+ s5p_dsim_set_hs_enable(&dsim);
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
+
+ /* it needs delay for stabilization */
+ mdelay(dsim.pd->delay_for_stabilization);
+
+ /* initialize lcd panel */
+ if (dsim.mipi_drv->init)
+ dsim.mipi_drv->init(&pdev->dev);
+ else
+ dev_warn(&pdev->dev, "init func is null.\n");
+
+ s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
+
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
+
+ dsim.mipi_ddi_pd->resume_complete = 1;
+
+ return 0;
+}
+#else
+#define s5p_dsim_suspend NULL
+#define s5p_dsim_resume NULL
+#endif
+
+static struct platform_driver s5p_dsim_driver = {
+ .probe = s5p_dsim_probe,
+ .remove = s5p_dsim_remove,
+ .suspend = s5p_dsim_suspend,
+ .resume = s5p_dsim_resume,
+ .driver = {
+ .name = "s5p-dsim",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int s5p_dsim_register(void)
+{
+ platform_driver_register(&s5p_dsim_driver);
+
+ return 0;
+}
+
+static void s5p_dsim_unregister(void)
+{
+ platform_driver_unregister(&s5p_dsim_driver);
+}
+
+module_init(s5p_dsim_register);
+module_exit(s5p_dsim_unregister);
+
+MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
+MODULE_DESCRIPTION("Samusung MIPI-DSIM driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/s5p_dsim_common.c b/drivers/video/s5p_dsim_common.c
new file mode 100644
index 0000000..77724dc
--- /dev/null
+++ b/drivers/video/s5p_dsim_common.c
@@ -0,0 +1,753 @@
+/* linux/drivers/video/samsung/s5p_dsim_common.c
+ *
+ * Samsung MIPI-DSIM common driver.
+ *
+ * InKi Dae, <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/ctype.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/memory.h>
+#include <linux/delay.h>
+#include <linux/kthread.h>
+
+#include <plat/fb.h>
+#include <plat/regs-dsim.h>
+
+#include <mach/map.h>
+#include <plat/dsim.h>
+#include <plat/mipi_ddi.h>
+
+#include "s5p_dsim_lowlevel.h"
+
+static void s5p_dsim_long_data_wr(struct dsim_global *dsim, unsigned int data0,
+ unsigned int data1)
+{
+ unsigned int data_cnt = 0, payload = 0;
+
+ /* in case that data count is more then 4 */
+ for (data_cnt = 0; data_cnt < data1; data_cnt += 4) {
+ /*
+ * after sending 4bytes per one time,
+ * send remainder data less then 4.
+ */
+ if ((data1 - data_cnt) < 4) {
+ if ((data1 - data_cnt) == 3) {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
+ (*(u8 *)(data0 + (data_cnt + 2))) << 16;
+ dev_dbg(dsim->dev, "count = 3 payload = %x, %x %x %x\n",
+ payload, *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)));
+ } else if ((data1 - data_cnt) == 2) {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8;
+ dev_dbg(dsim->dev,
+ "count = 2 payload = %x, %x %x\n", payload,
+ *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)));
+ } else if ((data1 - data_cnt) == 1) {
+ payload = *(u8 *)(data0 + data_cnt);
+ }
+
+ s5p_dsim_wr_tx_data(dsim, payload);
+ /* send 4bytes per one time. */
+ } else {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
+ (*(u8 *)(data0 + (data_cnt + 2))) << 16 |
+ (*(u8 *)(data0 + (data_cnt + 3))) << 24;
+
+ dev_dbg(dsim->dev,
+ "count = 4 payload = %x, %x %x %x %x\n",
+ payload, *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)),
+ *(u8 *)(data0 + (data_cnt + 3)));
+
+ s5p_dsim_wr_tx_data(dsim, payload);
+ }
+ }
+}
+
+int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1)
+{
+ struct dsim_global *dsim = NULL;
+ unsigned int timeout = 5000 * 2;
+ unsigned long delay_val, udelay;
+ unsigned char check_rx_ack = 0;
+
+ dsim = (struct dsim_global *)dsim_data;
+
+ if (dsim == NULL) {
+ dev_err(dsim->dev, "dsim_data is NULL.\n");
+ return -EFAULT;
+ }
+
+
+ if (dsim->state == DSIM_STATE_ULPS) {
+ dev_err(dsim->dev, "state is ULPS.\n");
+
+ return -EINVAL;
+ }
+
+ delay_val = 1000000 / dsim->dsim_info->esc_clk;
+ udelay = 10 * delay_val;
+
+ mdelay(udelay);
+
+ /* only if transfer mode is LPDT, wait SFR becomes empty. */
+ if (dsim->state == DSIM_STATE_STOP) {
+ while (!(s5p_dsim_get_fifo_state(dsim) &
+ SFR_HEADER_EMPTY)) {
+ if ((timeout--) > 0)
+ mdelay(1);
+ else {
+ dev_err(dsim->dev,
+ "SRF header fifo is not empty.\n");
+ return -EINVAL;
+ }
+ }
+ }
+
+ switch (data_id) {
+ /* short packet types of packet types for command. */
+ case GEN_SHORT_WR_NO_PARA:
+ case GEN_SHORT_WR_1_PARA:
+ case GEN_SHORT_WR_2_PARA:
+ case DCS_WR_NO_PARA:
+ case DCS_WR_1_PARA:
+ case SET_MAX_RTN_PKT_SIZE:
+ s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
+ (unsigned char) data0, (unsigned char) data1);
+ if (check_rx_ack)
+ /* process response func should be implemented */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* general command */
+ case CMD_OFF:
+ case CMD_ON:
+ case SHUT_DOWN:
+ case TURN_ON:
+ s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
+ (unsigned char) data0, (unsigned char) data1);
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* packet types for video data */
+ case VSYNC_START:
+ case VSYNC_END:
+ case HSYNC_START:
+ case HSYNC_END:
+ case EOT_PKT:
+ return 0;
+
+ /* short and response packet types for command */
+ case GEN_RD_1_PARA:
+ case GEN_RD_2_PARA:
+ case GEN_RD_NO_PARA:
+ case DCS_RD_NO_PARA:
+ s5p_dsim_clear_interrupt(dsim, 0xffffffff);
+ s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
+ (unsigned char) data0, (unsigned char) data1);
+ /* process response func should be implemented. */
+ return 0;
+
+ /* long packet type and null packet */
+ case NULL_PKT:
+ case BLANKING_PKT:
+ return 0;
+ case GEN_LONG_WR:
+ case DCS_LONG_WR:
+ {
+ unsigned int size, data_cnt = 0, payload = 0;
+
+ size = data1 * 4;
+
+ /* if data count is less then 4, then send 3bytes data. */
+ if (data1 < 4) {
+ payload = *(u8 *)(data0) |
+ *(u8 *)(data0 + 1) << 8 |
+ *(u8 *)(data0 + 2) << 16;
+
+ s5p_dsim_wr_tx_data(dsim, payload);
+
+ dev_dbg(dsim->dev, "count = %d payload = %x,%x %x %x\n",
+ data1, payload,
+ *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)));
+ /* in case that data count is more then 4 */
+ } else
+ s5p_dsim_long_data_wr(dsim, data0, data1);
+
+ /* put data into header fifo */
+ s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
+ (unsigned char) (((unsigned short) data1) & 0xff),
+ (unsigned char) ((((unsigned short) data1) & 0xff00) >>
+ 8));
+
+ }
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* packet typo for video data */
+ case RGB565_PACKED:
+ case RGB666_PACKED:
+ case RGB666_LOOSLY:
+ case RGB888_PACKED:
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+ default:
+ dev_warn(dsim->dev,
+ "data id %x is not supported current DSI spec.\n",
+ data_id);
+
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int s5p_dsim_init_header_fifo(struct dsim_global *dsim)
+{
+ unsigned int cnt;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ for (cnt = 0; cnt < DSIM_HEADER_FIFO_SZ; cnt++)
+ dsim->header_fifo_index[cnt] = -1;
+ return 0;
+}
+
+int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned char enable)
+{
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (enable) {
+ int sw_timeout = 1000;
+ s5p_dsim_clear_interrupt(dsim, DSIM_PLL_STABLE);
+ s5p_dsim_enable_pll(dsim, 1);
+ while (1) {
+ sw_timeout--;
+ if (s5p_dsim_is_pll_stable(dsim))
+ return 0;
+ if (sw_timeout == 0)
+ return -EINVAL;
+ }
+ } else
+ s5p_dsim_enable_pll(dsim, 0);
+
+ return 0;
+}
+
+unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
+ unsigned char pre_divider, unsigned short main_divider,
+ unsigned char scaler)
+{
+ unsigned long dfin_pll, dfvco, dpll_out;
+ unsigned char freq_band;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return 0;
+ }
+
+ dfin_pll = (MIPI_FIN / pre_divider);
+
+ if (dfin_pll < 6 * 1000 * 1000 || dfin_pll > 12 * 1000 * 1000) {
+ dev_warn(dsim->dev, "warning!!\n");
+ dev_warn(dsim->dev, "fin_pll range is 6MHz ~ 12MHz\n");
+ dev_warn(dsim->dev, "fin_pll of mipi dphy pll is %luMHz\n",
+ (dfin_pll / 1000000));
+
+ s5p_dsim_enable_afc(dsim, 0, 0);
+ } else {
+ if (dfin_pll < 7 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x1);
+ else if (dfin_pll < 8 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x0);
+ else if (dfin_pll < 9 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x3);
+ else if (dfin_pll < 10 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x2);
+ else if (dfin_pll < 11 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x5);
+ else
+ s5p_dsim_enable_afc(dsim, 1, 0x4);
+ }
+
+ dfvco = dfin_pll * main_divider;
+ dev_dbg(dsim->dev, "dfvco = %lu, dfin_pll = %lu, main_divider = %d\n",
+ dfvco, dfin_pll, main_divider);
+ if (dfvco < 500000000 || dfvco > 1000000000) {
+ dev_warn(dsim->dev, "Caution!!\n");
+ dev_warn(dsim->dev, "fvco range is 500MHz ~ 1000MHz\n");
+ dev_warn(dsim->dev, "fvco of mipi dphy pll is %luMHz\n",
+ (dfvco / 1000000));
+ }
+
+ dpll_out = dfvco / (1 << scaler);
+ dev_dbg(dsim->dev, "dpll_out = %lu, dfvco = %lu, scaler = %d\n",
+ dpll_out, dfvco, scaler);
+ if (dpll_out < 100 * 1000000)
+ freq_band = 0x0;
+ else if (dpll_out < 120 * 1000000)
+ freq_band = 0x1;
+ else if (dpll_out < 170 * 1000000)
+ freq_band = 0x2;
+ else if (dpll_out < 220 * 1000000)
+ freq_band = 0x3;
+ else if (dpll_out < 270 * 1000000)
+ freq_band = 0x4;
+ else if (dpll_out < 320 * 1000000)
+ freq_band = 0x5;
+ else if (dpll_out < 390 * 1000000)
+ freq_band = 0x6;
+ else if (dpll_out < 450 * 1000000)
+ freq_band = 0x7;
+ else if (dpll_out < 510 * 1000000)
+ freq_band = 0x8;
+ else if (dpll_out < 560 * 1000000)
+ freq_band = 0x9;
+ else if (dpll_out < 640 * 1000000)
+ freq_band = 0xa;
+ else if (dpll_out < 690 * 1000000)
+ freq_band = 0xb;
+ else if (dpll_out < 770 * 1000000)
+ freq_band = 0xc;
+ else if (dpll_out < 870 * 1000000)
+ freq_band = 0xd;
+ else if (dpll_out < 950 * 1000000)
+ freq_band = 0xe;
+ else
+ freq_band = 0xf;
+
+ dev_dbg(dsim->dev, "freq_band = %d\n", freq_band);
+
+ s5p_dsim_pll_freq(dsim, pre_divider, main_divider, scaler);
+
+ {
+ unsigned char temp0, temp1;
+
+ temp0 = 0;
+ s5p_dsim_hs_zero_ctrl(dsim, temp0);
+ temp1 = 0;
+ s5p_dsim_prep_ctrl(dsim, temp1);
+ }
+
+ /* Freq Band */
+ s5p_dsim_pll_freq_band(dsim, freq_band);
+
+ /* Stable time */
+ s5p_dsim_pll_stable_time(dsim,
+ dsim->dsim_info->pll_stable_time);
+
+ /* Enable PLL */
+ dev_dbg(dsim->dev, "FOUT of mipi dphy pll is %luMHz\n",
+ (dpll_out / 1000000));
+
+ return dpll_out;
+}
+
+int s5p_dsim_set_clock(struct dsim_global *dsim,
+ unsigned char byte_clk_sel, unsigned char enable)
+{
+ unsigned int esc_div;
+ unsigned long esc_clk_error_rate;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EINVAL;
+ }
+
+ if (enable) {
+ dsim->e_clk_src = byte_clk_sel;
+
+ /* Escape mode clock and byte clock source */
+ s5p_dsim_set_byte_clock_src(dsim, byte_clk_sel);
+
+ /* DPHY, DSIM Link : D-PHY clock out */
+ if (byte_clk_sel == DSIM_PLL_OUT_DIV8) {
+ dsim->hs_clk = s5p_dsim_change_pll(dsim,
+ dsim->dsim_info->p, dsim->dsim_info->m,
+ dsim->dsim_info->s);
+ if (dsim->hs_clk == 0) {
+ dev_err(dsim->dev,
+ "failed to get hs clock.\n");
+ return -EINVAL;
+ }
+
+ dsim->byte_clk = dsim->hs_clk / 8;
+ s5p_dsim_enable_pll_bypass(dsim, 0);
+ s5p_dsim_pll_on(dsim, 1);
+ /* DPHY : D-PHY clock out, DSIM link : external clock out */
+ } else if (byte_clk_sel == DSIM_EXT_CLK_DIV8)
+ dev_warn(dsim->dev,
+ "this project is not support \
+ external clock source for MIPI DSIM\n");
+ else if (byte_clk_sel == DSIM_EXT_CLK_BYPASS)
+ dev_warn(dsim->dev,
+ "this project is not support \
+ external clock source for MIPI DSIM\n");
+
+ /* escape clock divider */
+ esc_div = dsim->byte_clk / (dsim->dsim_info->esc_clk);
+ dev_dbg(dsim->dev,
+ "esc_div = %d, byte_clk = %lu, esc_clk = %lu\n",
+ esc_div, dsim->byte_clk, dsim->dsim_info->esc_clk);
+ if ((dsim->byte_clk / esc_div) >= 20000000 ||
+ (dsim->byte_clk / esc_div) > dsim->dsim_info->esc_clk)
+ esc_div += 1;
+
+ dsim->escape_clk = dsim->byte_clk / esc_div;
+ dev_dbg(dsim->dev,
+ "escape_clk = %lu, byte_clk = %lu, esc_div = %d\n",
+ dsim->escape_clk, dsim->byte_clk, esc_div);
+
+ /*
+ * enable escclk on lane
+ *
+ * in case of evt0, DSIM_TRUE is enable and
+ * DSIM_FALSE is enable for evt1.
+ */
+ if (dsim->pd->platform_rev == 1)
+ s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
+ else
+ s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
+
+ /* enable byte clk and escape clock */
+ s5p_dsim_set_esc_clk_prs(dsim, 1, esc_div);
+ /* escape clock on lane */
+ s5p_dsim_enable_esc_clk_on_lane(dsim,
+ (DSIM_LANE_CLOCK | dsim->data_lane), 1);
+
+ dev_dbg(dsim->dev, "byte clock is %luMHz\n",
+ (dsim->byte_clk / 1000000));
+ dev_dbg(dsim->dev, "escape clock that user's need is %lu\n",
+ (dsim->dsim_info->esc_clk / 1000000));
+ dev_dbg(dsim->dev, "escape clock divider is %x\n", esc_div);
+ dev_dbg(dsim->dev, "escape clock is %luMHz\n",
+ ((dsim->byte_clk / esc_div) / 1000000));
+
+ if ((dsim->byte_clk / esc_div) > dsim->escape_clk) {
+ esc_clk_error_rate = dsim->escape_clk /
+ (dsim->byte_clk / esc_div);
+ dev_warn(dsim->dev, "error rate is %lu over.\n",
+ (esc_clk_error_rate / 100));
+ } else if ((dsim->byte_clk / esc_div) < (dsim->escape_clk)) {
+ esc_clk_error_rate = (dsim->byte_clk / esc_div) /
+ dsim->escape_clk;
+ dev_warn(dsim->dev, "error rate is %lu under.\n",
+ (esc_clk_error_rate / 100));
+ }
+ } else {
+ s5p_dsim_enable_esc_clk_on_lane(dsim,
+ (DSIM_LANE_CLOCK | dsim->data_lane), 0);
+ s5p_dsim_set_esc_clk_prs(dsim, 0, 0);
+
+ /*
+ * in case of evt0, DSIM_FALSE is disable and
+ * DSIM_TRUE is disable for evt1.
+ */
+ if (dsim->pd->platform_rev == 1)
+ s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
+ else
+ s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
+
+ if (byte_clk_sel == DSIM_PLL_OUT_DIV8)
+ s5p_dsim_pll_on(dsim, 0);
+ }
+
+ return 0;
+}
+
+int s5p_dsim_init_dsim(struct dsim_global *dsim)
+{
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (dsim->pd->init_d_phy)
+ dsim->pd->init_d_phy(dsim);
+
+ dsim->state = DSIM_STATE_RESET;
+
+ switch (dsim->dsim_info->e_no_data_lane) {
+ case DSIM_DATA_LANE_1:
+ dsim->data_lane = DSIM_LANE_DATA0;
+ break;
+ case DSIM_DATA_LANE_2:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1;
+ break;
+ case DSIM_DATA_LANE_3:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
+ DSIM_LANE_DATA2;
+ break;
+ case DSIM_DATA_LANE_4:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
+ DSIM_LANE_DATA2 | DSIM_LANE_DATA3;
+ break;
+ default:
+ dev_info(dsim->dev, "data lane is invalid.\n");
+ return -EINVAL;
+ };
+
+ s5p_dsim_init_header_fifo(dsim);
+ s5p_dsim_sw_reset(dsim);
+ s5p_dsim_dp_dn_swap(dsim, dsim->dsim_info->e_lane_swap);
+
+ return 0;
+}
+
+int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim, int enable)
+{
+ /* enable only frame done interrupt */
+ s5p_dsim_set_interrupt_mask(dsim, INTMSK_FRAME_DONE, enable);
+
+ return 0;
+}
+
+int s5p_dsim_set_display_mode(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
+{
+ struct fb_videomode *mlcd_video = NULL;
+ struct fb_cmdmode *mlcd_command = NULL;
+ struct s3c_fb_pd_win *pd;
+ unsigned int width = 0, height = 0;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ pd = (struct s3c_fb_pd_win *)main_lcd->lcd_panel_info;
+
+ /* in case of VIDEO MODE (RGB INTERFACE) */
+ if (dsim->dsim_lcd_info->e_interface == (u32) DSIM_VIDEO) {
+ mlcd_video = (struct fb_videomode *)&pd->win_mode;
+ width = mlcd_video->xres;
+ height = mlcd_video->yres;
+
+ if (dsim->dsim_info->auto_vertical_cnt == DSIM_FALSE) {
+ s5p_dsim_set_main_disp_vporch(dsim,
+ mlcd_video->upper_margin,
+ mlcd_video->lower_margin, 0);
+ s5p_dsim_set_main_disp_hporch(dsim,
+ mlcd_video->left_margin,
+ mlcd_video->right_margin);
+ s5p_dsim_set_main_disp_sync_area(dsim,
+ mlcd_video->vsync_len,
+ mlcd_video->hsync_len);
+ }
+ } else { /* in case of COMMAND MODE (CPU or I80 INTERFACE) */
+ mlcd_command = (struct fb_cmdmode *)&pd->cmd_mode;
+ width = mlcd_command->xres;
+ height = mlcd_command->yres;
+ }
+
+ s5p_dsim_set_main_disp_resol(dsim, height, width);
+
+ if (sub_lcd != NULL)
+ dev_warn(dsim->dev, "sub lcd isn't supported yet.\n");
+
+ s5p_dsim_display_config(dsim, dsim->dsim_lcd_info, NULL);
+
+ return 0;
+}
+
+int s5p_dsim_init_link(struct dsim_global *dsim)
+{
+ unsigned int time_out = 100;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ switch (dsim->state) {
+ case DSIM_STATE_RESET:
+ s5p_dsim_sw_reset(dsim);
+ case DSIM_STATE_INIT:
+ s5p_dsim_init_fifo_pointer(dsim, 0x1f);
+
+ /* dsi configuration */
+ s5p_dsim_init_config(dsim, dsim->dsim_lcd_info,
+ NULL, dsim->dsim_info);
+ s5p_dsim_enable_lane(dsim, DSIM_LANE_CLOCK, 1);
+ s5p_dsim_enable_lane(dsim, dsim->data_lane, 1);
+
+ /* set clock configuration */
+ s5p_dsim_set_clock(dsim, dsim->dsim_info->e_byte_clk,
+ 1);
+
+ /* check clock and data lane state is stop state */
+ while (!(s5p_dsim_is_lane_state(dsim, DSIM_LANE_CLOCK)
+ == DSIM_LANE_STATE_STOP) &&
+ !(s5p_dsim_is_lane_state(dsim,
+ dsim->data_lane) == DSIM_LANE_STATE_STOP)) {
+ time_out--;
+ if (time_out == 0) {
+ dev_info(dsim->dev,
+ "DSI Master is not stop state.\n");
+ dev_info(dsim->dev,
+ "Check initialization process\n");
+
+ return -EINVAL;
+ }
+ }
+
+ if (time_out != 0) {
+ dev_info(dsim->dev,
+ "initialization of DSI Master is successful\n");
+ dev_info(dsim->dev, "DSI Master state is stop state\n");
+ }
+
+ dsim->state = DSIM_STATE_STOP;
+
+ /* BTA sequence counters */
+ s5p_dsim_set_stop_state_counter(dsim,
+ dsim->dsim_info->stop_holding_cnt);
+ s5p_dsim_set_bta_timeout(dsim,
+ dsim->dsim_info->bta_timeout);
+ s5p_dsim_set_lpdr_timeout(dsim,
+ dsim->dsim_info->rx_timeout);
+
+ /* default LPDT by both cpu and lcd controller */
+ s5p_dsim_set_data_mode(dsim, DSIM_TRANSFER_BOTH,
+ DSIM_STATE_STOP);
+
+ return 0;
+ default:
+ dev_info(dsim->dev, "DSI Master is already init.\n");
+ return 0;
+ }
+
+ return 0;
+}
+
+int s5p_dsim_set_hs_enable(struct dsim_global *dsim)
+{
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (dsim->state == DSIM_STATE_STOP) {
+ if (dsim->e_clk_src != DSIM_EXT_CLK_BYPASS) {
+ dsim->state = DSIM_STATE_HSCLKEN;
+ s5p_dsim_set_data_mode(dsim,
+ DSIM_TRANSFER_BOTH, DSIM_STATE_HSCLKEN);
+ s5p_dsim_enable_hs_clock(dsim, 1);
+
+ return 0;
+ } else
+ dev_warn(dsim->dev,
+ "clock source is external bypass.\n");
+ } else
+ dev_warn(dsim->dev, "DSIM is not stop state.\n");
+
+ return 0;
+}
+
+int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
+ unsigned char data_path, unsigned char hs_enable)
+{
+ int ret = -1;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (hs_enable) {
+ if (dsim->state == DSIM_STATE_HSCLKEN) {
+ s5p_dsim_set_data_mode(dsim, data_path,
+ DSIM_STATE_HSCLKEN);
+ ret = 0;
+ } else {
+ dev_err(dsim->dev, "HS Clock lane is not enabled.\n");
+ ret = -EINVAL;
+ }
+ } else {
+ if (dsim->state == DSIM_STATE_INIT || dsim->state ==
+ DSIM_STATE_ULPS) {
+ dev_err(dsim->dev,
+ "DSI Master is not STOP or HSDT state.\n");
+ ret = -EINVAL;
+ } else {
+ s5p_dsim_set_data_mode(dsim, data_path,
+ DSIM_STATE_STOP);
+ ret = 0;
+ }
+ }
+
+ return ret;
+}
+
+int s5p_dsim_get_frame_done_status(void *dsim_data)
+{
+ struct dsim_global *dsim = NULL;
+
+ dsim = (struct dsim_global *)dsim_data;
+
+ if (dsim == NULL) {
+ dev_err(dsim->dev, "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ return _s5p_dsim_get_frame_done_status(dsim);
+}
+
+int s5p_dsim_clear_frame_done(void *dsim_data)
+{
+ struct dsim_global *dsim = NULL;
+
+ dsim = (struct dsim_global *)dsim_data;
+
+ if (dsim == NULL) {
+ dev_err(dsim->dev, "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ _s5p_dsim_clear_frame_done(dsim);
+
+ return 0;
+}
+
+MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
+MODULE_DESCRIPTION("Samusung MIPI-DSIM common driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/s5p_dsim_common.h b/drivers/video/s5p_dsim_common.h
new file mode 100644
index 0000000..deefca1
--- /dev/null
+++ b/drivers/video/s5p_dsim_common.h
@@ -0,0 +1,38 @@
+/* linux/drivers/video/samsung/s5p_dsim_common.h
+ *
+ * Header file for Samsung MIPI-DSI common driver.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _S5P_DSIM_COMMON_H
+#define _S5P_DSIM_COMMON_H
+
+extern int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+extern int s5p_dsim_init_header_fifo(struct dsim_global *dsim);
+extern int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned char enable);
+extern unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
+ unsigned char pre_divider, unsigned short main_divider,
+ unsigned char scaler);
+extern int s5p_dsim_set_clock(struct dsim_global *dsim,
+ unsigned char byte_clk_sel, unsigned char enable);
+extern int s5p_dsim_init_dsim(struct dsim_global *dsim);
+extern int s5p_dsim_set_display_mode(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd);
+extern int s5p_dsim_init_link(struct dsim_global *dsim);
+extern int s5p_dsim_set_hs_enable(struct dsim_global *dsim);
+extern int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
+ unsigned char data_path, unsigned char hs_enable);
+extern int s5p_dsim_get_frame_done_status(void *dsim_data);
+extern int s5p_dsim_clear_frame_done(void *dsim_data);
+extern int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim, int enable);
+
+extern struct fb_info *registered_fb[FB_MAX] __read_mostly;
+
+#endif /* _S5P_DSIM_COMMON_H */
diff --git a/drivers/video/s5p_dsim_lowlevel.c b/drivers/video/s5p_dsim_lowlevel.c
new file mode 100644
index 0000000..6a27395
--- /dev/null
+++ b/drivers/video/s5p_dsim_lowlevel.c
@@ -0,0 +1,562 @@
+/* linux/drivers/video/samsung/s5p-dsim.c
+ *
+ * Samsung MIPI-DSIM lowlevel driver.
+ *
+ * InKi Dae, <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <linux/delay.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/ctype.h>
+#include <linux/io.h>
+
+#include <mach/map.h>
+
+#include <plat/dsim.h>
+#include <plat/mipi_ddi.h>
+#include <plat/regs-dsim.h>
+
+void s5p_dsim_func_reset(struct dsim_global *dsim)
+{
+ unsigned int cfg = 0;
+
+ cfg = DSIM_FUNCRST;
+
+ writel(cfg, dsim->reg_base + S5P_DSIM_SWRST);
+}
+
+void s5p_dsim_sw_reset(struct dsim_global *dsim)
+{
+ unsigned int cfg = 0;
+
+ cfg = DSIM_SWRST;
+
+ writel(cfg, dsim->reg_base + S5P_DSIM_SWRST);
+}
+
+void s5p_dsim_set_interrupt_mask(struct dsim_global *dsim, unsigned int mode,
+ unsigned int mask)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTMSK);
+
+ if (mask)
+ reg |= mode;
+ else
+ reg &= ~(mode);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_INTMSK);
+}
+
+void s5p_dsim_init_fifo_pointer(struct dsim_global *dsim, unsigned char cfg)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_FIFOCTRL);
+
+ writel(reg & ~(cfg), dsim->reg_base + S5P_DSIM_FIFOCTRL);
+ mdelay(10);
+ reg |= cfg;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_FIFOCTRL);
+}
+
+/*
+ * this function set PLL P, M and S value in D-PHY
+ */
+void s5p_dsim_set_phy_tunning(struct dsim_global *dsim, unsigned int value)
+{
+ writel(DSIM_AFC_CTL(value), dsim->reg_base + S5P_DSIM_PHYACCHR);
+}
+
+void s5p_dsim_set_main_disp_resol(struct dsim_global *dsim,
+ unsigned short vert_resol, unsigned short hori_resol)
+{
+ unsigned int reg;
+
+ /* standby should be set after configuration so set to not ready*/
+ reg = (readl(dsim->reg_base + S5P_DSIM_MDRESOL)) &
+ ~(DSIM_MAIN_STAND_BY);
+ writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
+
+ reg &= ~(0x7ff << 16) & ~(0x7ff << 0);
+ reg |= DSIM_MAIN_VRESOL(vert_resol) | DSIM_MAIN_HRESOL(hori_resol);
+
+ reg |= DSIM_MAIN_STAND_BY;
+ writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
+}
+
+void s5p_dsim_set_main_disp_vporch(struct dsim_global *dsim,
+ unsigned int cmd_allow, unsigned int vfront, unsigned int vback)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_MVPORCH)) &
+ ~(DSIM_CMD_ALLOW_MASK) & ~(DSIM_STABLE_VFP_MASK) &
+ ~(DSIM_MAIN_VBP_MASK);
+
+ reg |= ((cmd_allow & 0xf) << DSIM_CMD_ALLOW_SHIFT) |
+ ((vfront & 0x7ff) << DSIM_STABLE_VFP_SHIFT) |
+ ((vback & 0x7ff) << DSIM_MAIN_VBP_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_MVPORCH);
+}
+
+void s5p_dsim_set_main_disp_hporch(struct dsim_global *dsim,
+ unsigned short front, unsigned short back)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_MHPORCH)) &
+ ~(DSIM_MAIN_HFP_MASK) & ~(DSIM_MAIN_HBP_MASK);
+
+ reg |= (front << DSIM_MAIN_HFP_SHIFT) | (back << DSIM_MAIN_HBP_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_MHPORCH);
+}
+
+void s5p_dsim_set_main_disp_sync_area(struct dsim_global *dsim,
+ unsigned short vert, unsigned short hori)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_MSYNC)) &
+ ~(DSIM_MAIN_VSA_MASK) & ~(DSIM_MAIN_HSA_MASK);
+
+ reg |= ((vert & 0x3ff) << DSIM_MAIN_VSA_SHIFT) |
+ (hori << DSIM_MAIN_HSA_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_MSYNC);
+}
+
+void s5p_dsim_set_sub_disp_resol(struct dsim_global *dsim,
+ unsigned short vert, unsigned short hori)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_SDRESOL)) &
+ ~(DSIM_SUB_STANDY_MASK);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
+
+ reg &= ~(DSIM_SUB_VRESOL_MASK) | ~(DSIM_SUB_HRESOL_MASK);
+ reg |= ((vert & 0x7ff) << DSIM_SUB_VRESOL_SHIFT) |
+ ((hori & 0x7ff) << DSIM_SUB_HRESOL_SHIFT);
+ writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
+
+ reg |= (1 << DSIM_SUB_STANDY_SHIFT);
+ writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
+}
+
+void s5p_dsim_init_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd_info,
+ struct dsim_lcd_config *sub_lcd_info, struct dsim_config *dsim_info)
+{
+ unsigned int cfg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
+ ~(1 << 28) & ~(0x1f << 20) & ~(0x3 << 5);
+
+ cfg = (dsim_info->auto_flush << 29) |
+ (dsim_info->eot_disable << 28) |
+ (dsim_info->auto_vertical_cnt << DSIM_AUTO_MODE_SHIFT) |
+ (dsim_info->hse << DSIM_HSE_MODE_SHIFT) |
+ (dsim_info->hfp << DSIM_HFP_MODE_SHIFT) |
+ (dsim_info->hbp << DSIM_HBP_MODE_SHIFT) |
+ (dsim_info->hsa << DSIM_HSA_MODE_SHIFT) |
+ (dsim_info->e_no_data_lane << DSIM_NUM_OF_DATALANE_SHIFT);
+
+ writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+void s5p_dsim_display_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
+{
+ u32 reg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
+ ~(0x3 << 26) & ~(1 << 25) & ~(0x3 << 18) & ~(0x7 << 12) &
+ ~(0x3 << 16) & ~(0x7 << 8);
+
+ if (main_lcd->e_interface == DSIM_VIDEO)
+ reg |= (1 << 25);
+ else if (main_lcd->e_interface == DSIM_COMMAND)
+ reg &= ~(1 << 25);
+ else {
+ dev_err(dsim->dev, "this ddi is not MIPI interface.\n");
+ return;
+ }
+
+ /* main lcd */
+ reg |= ((u8) (main_lcd->parameter[DSI_VIDEO_MODE_SEL]) & 0x3) << 26 |
+ ((u8) (main_lcd->parameter[DSI_VIRTUAL_CH_ID]) & 0x3) << 18 |
+ ((u8) (main_lcd->parameter[DSI_FORMAT]) & 0x7) << 12;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+void s5p_dsim_enable_lane(struct dsim_global *dsim, unsigned char lane,
+ unsigned char enable)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_CONFIG);
+
+ if (lane == DSIM_LANE_CLOCK) {
+ if (enable)
+ reg |= (1 << 0);
+ else
+ reg &= ~(1 << 0);
+ } else {
+ if (enable)
+ reg |= (lane << 1);
+ else
+ reg &= ~(lane << 1);
+ }
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+
+void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
+ unsigned char count)
+{
+ unsigned int cfg = 0;
+
+ /* get the data lane number. */
+ cfg = DSIM_NUM_OF_DATA_LANE(count);
+
+ writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+void s5p_dsim_enable_afc(struct dsim_global *dsim, unsigned char enable,
+ unsigned char afc_code)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PHYACCHR);
+
+ if (enable) {
+ reg |= (1 << 14);
+ reg &= ~(0x7 << 5);
+ reg |= (afc_code & 0x7) << 5;
+ } else
+ reg &= ~(1 << 14);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PHYACCHR);
+}
+
+void s5p_dsim_enable_pll_bypass(struct dsim_global *dsim,
+ unsigned char enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(DSIM_PLL_BYPASS_EXTERNAL);
+
+ reg |= enable << DSIM_PLL_BYPASS_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_set_pll_pms(struct dsim_global *dsim, unsigned char p,
+ unsigned short m, unsigned short s)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PLLCTRL);
+
+ reg |= ((p & 0x3f) << 13) | ((m & 0x1ff) << 4) | ((s & 0x7) << 1);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_pll_freq_band(struct dsim_global *dsim, unsigned char freq_band)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x1f << DSIM_FREQ_BAND_SHIFT);
+
+ reg |= ((freq_band & 0x1f) << DSIM_FREQ_BAND_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_pll_freq(struct dsim_global *dsim, unsigned char pre_divider,
+ unsigned short main_divider, unsigned char scaler)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x7ffff << 1);
+
+ reg |= (pre_divider & 0x3f) << 13 | (main_divider & 0x1ff) << 4 |
+ (scaler & 0x7) << 1;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_pll_stable_time(struct dsim_global *dsim,
+ unsigned int lock_time)
+{
+ writel(lock_time, dsim->reg_base + S5P_DSIM_PLLTMR);
+}
+
+void s5p_dsim_enable_pll(struct dsim_global *dsim, unsigned char enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x1 << DSIM_PLL_EN_SHIFT);
+
+ reg |= ((enable & 0x1) << DSIM_PLL_EN_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_set_byte_clock_src(struct dsim_global *dsim, unsigned char src)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(0x3 << DSIM_BYTE_CLK_SRC_SHIFT);
+
+ reg |= ((unsigned int) src) << DSIM_BYTE_CLK_SRC_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_enable_byte_clock(struct dsim_global *dsim,
+ unsigned char enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(1 << DSIM_BYTE_CLKEN_SHIFT);
+
+ reg |= enable << DSIM_BYTE_CLKEN_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_set_esc_clk_prs(struct dsim_global *dsim, unsigned char enable,
+ unsigned short prs_val)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(1 << DSIM_ESC_CLKEN_SHIFT) & ~(0xffff);
+
+ reg |= enable << DSIM_ESC_CLKEN_SHIFT;
+ if (enable)
+ reg |= prs_val;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_enable_esc_clk_on_lane(struct dsim_global *dsim,
+ unsigned char lane_sel, unsigned char enable)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_CLKCTRL);
+
+ if (enable) {
+ if (lane_sel & DSIM_LANE_CLOCK)
+ reg |= 1 << DSIM_LANE_ESC_CLKEN_SHIFT;
+ if (lane_sel & DSIM_LANE_DATA0)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1);
+ if (lane_sel & DSIM_LANE_DATA1)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2);
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3);
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4);
+ } else {
+ if (lane_sel & DSIM_LANE_CLOCK)
+ reg &= ~(1 << DSIM_LANE_ESC_CLKEN_SHIFT);
+ if (lane_sel & DSIM_LANE_DATA0)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1));
+ if (lane_sel & DSIM_LANE_DATA1)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2));
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3));
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4));
+ }
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_force_dphy_stop_state(struct dsim_global *dsim,
+ unsigned char enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_ESCMODE)) &
+ ~(0x1 << DSIM_FORCE_STOP_STATE_SHIFT);
+
+ reg |= ((enable & 0x1) << DSIM_FORCE_STOP_STATE_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_ESCMODE);
+}
+
+unsigned char s5p_dsim_is_lane_state(struct dsim_global *dsim,
+ unsigned char lane)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_STATUS);
+
+ if ((lane & DSIM_LANE_ALL) > DSIM_LANE_CLOCK) { /* all lane state */
+ if ((reg & 0x7ff) ^ (((lane & 0xf) << 4) | (1 << 9)))
+ return DSIM_LANE_STATE_ULPS;
+ else if ((reg & 0x7ff) ^ (((lane & 0xf) << 0) | (1 << 8)))
+ return DSIM_LANE_STATE_STOP;
+ else {
+ dev_err(dsim->dev, "land state is unknown.\n");
+ return -1;
+ }
+ } else if (lane & DSIM_LANE_DATA_ALL) { /* data lane */
+ if (reg & (lane << 4))
+ return DSIM_LANE_STATE_ULPS;
+ else if (reg & (lane << 0))
+ return DSIM_LANE_STATE_STOP;
+ else {
+ dev_err(dsim->dev, "data lane state is unknown.\n");
+ return -1;
+ }
+ } else if (lane & DSIM_LANE_CLOCK) { /* clock lane */
+ if (reg & (1 << 9))
+ return DSIM_LANE_STATE_ULPS;
+ else if (reg & (1 << 8))
+ return DSIM_LANE_STATE_STOP;
+ else if (reg & (1 << 10))
+ return DSIM_LANE_STATE_HS_READY;
+ else {
+ dev_err(dsim->dev, "data lane state is unknown.\n");
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+void s5p_dsim_set_stop_state_counter(struct dsim_global *dsim,
+ unsigned short cnt_val)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_ESCMODE)) &
+ ~(0x7ff << DSIM_STOP_STATE_CNT_SHIFT);
+
+ reg |= ((cnt_val & 0x7ff) << DSIM_STOP_STATE_CNT_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_ESCMODE);
+}
+
+void s5p_dsim_set_bta_timeout(struct dsim_global *dsim, unsigned char timeout)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_TIMEOUT)) &
+ ~(0xff << DSIM_BTA_TOUT_SHIFT);
+
+ reg |= (timeout << DSIM_BTA_TOUT_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_TIMEOUT);
+}
+
+void s5p_dsim_set_lpdr_timeout(struct dsim_global *dsim,
+ unsigned short timeout)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_TIMEOUT)) &
+ ~(0xffff << DSIM_LPDR_TOUT_SHIFT);
+
+ reg |= (timeout << DSIM_LPDR_TOUT_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_TIMEOUT);
+}
+
+void s5p_dsim_set_data_mode(struct dsim_global *dsim, unsigned char data,
+ unsigned char state)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_ESCMODE);
+
+ if (state == DSIM_STATE_HSCLKEN)
+ reg &= ~data;
+ else
+ reg |= data;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_ESCMODE);
+}
+
+void s5p_dsim_enable_hs_clock(struct dsim_global *dsim, unsigned char enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(1 << DSIM_TX_REQUEST_HSCLK_SHIFT);
+
+ reg |= enable << DSIM_TX_REQUEST_HSCLK_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_dp_dn_swap(struct dsim_global *dsim, unsigned char swap_en)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PHYACCHR1);
+
+ reg &= ~(0x3 << 0);
+ reg |= (swap_en & 0x3) << 0;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PHYACCHR1);
+}
+
+void s5p_dsim_hs_zero_ctrl(struct dsim_global *dsim, unsigned char hs_zero)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0xf << 28);
+
+ reg |= ((hs_zero & 0xf) << 28);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_prep_ctrl(struct dsim_global *dsim, unsigned char prep)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x7 << 20);
+
+ reg |= ((prep & 0x7) << 20);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_clear_interrupt(struct dsim_global *dsim, unsigned int int_src)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
+
+ reg |= int_src;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_INTSRC);
+}
+
+unsigned char s5p_dsim_is_pll_stable(struct dsim_global *dsim)
+{
+ return (unsigned char) ((readl(dsim->reg_base + S5P_DSIM_STATUS) &
+ (1 << 31)) >> 31);
+}
+
+unsigned int s5p_dsim_get_fifo_state(struct dsim_global *dsim)
+{
+ unsigned int ret = 0;
+
+ ret = (readl(dsim->reg_base + S5P_DSIM_FIFOCTRL) & ~(0x1f));
+
+ return ret;
+}
+
+void s5p_dsim_wr_tx_header(struct dsim_global *dsim,
+ unsigned char di, unsigned char data0, unsigned char data1)
+{
+ unsigned int reg = (data1 << 16) | (data0 << 8) | ((di & 0x3f) << 0);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PKTHDR);
+}
+
+unsigned int _s5p_dsim_get_frame_done_status(struct dsim_global *dsim)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
+
+ return (reg & INTSRC_FRAME_DONE) ? 1 : 0;
+}
+
+void _s5p_dsim_clear_frame_done(struct dsim_global *dsim)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
+
+ writel(reg | INTSRC_FRAME_DONE, dsim->reg_base +
+ S5P_DSIM_INTSRC);
+}
+
+void s5p_dsim_wr_tx_data(struct dsim_global *dsim, unsigned int tx_data)
+{
+ writel(tx_data, dsim->reg_base + S5P_DSIM_PAYLOAD);
+}
diff --git a/drivers/video/s5p_dsim_lowlevel.h b/drivers/video/s5p_dsim_lowlevel.h
new file mode 100644
index 0000000..ff950ba
--- /dev/null
+++ b/drivers/video/s5p_dsim_lowlevel.h
@@ -0,0 +1,101 @@
+/* linux/drivers/video/samsung/s5p_dsim_lowlevel.h
+ *
+ * Header file for Samsung MIPI-DSIM lowlevel driver.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _S5P_DSIM_LOWLEVEL_H
+#define _S5P_DSIM_LOWLEVEL_H
+
+struct dsim_global;
+
+extern void s5p_dsim_func_reset(struct dsim_global *dsim);
+extern void s5p_dsim_sw_reset(struct dsim_global *dsim);
+extern void s5p_dsim_set_interrupt_mask(struct dsim_global *dsim,
+ unsigned int mode, unsigned int mask);
+extern void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
+ unsigned char count);
+extern void s5p_dsim_init_fifo_pointer(struct dsim_global *dsim,
+ unsigned char cfg);
+extern void s5p_dsim_set_phy_tunning(struct dsim_global *dsim,
+ unsigned int value);
+extern void s5p_dsim_set_phy_tunning(struct dsim_global *dsim,
+ unsigned int value);
+extern void s5p_dsim_set_main_disp_resol(struct dsim_global *dsim,
+ unsigned short vert_resol, unsigned short hori_resol);
+extern void s5p_dsim_set_main_disp_vporch(struct dsim_global *dsim,
+ unsigned short cmd_allow, unsigned short vfront, unsigned short vback);
+extern void s5p_dsim_set_main_disp_hporch(struct dsim_global *dsim,
+ unsigned short front, unsigned short back);
+extern void s5p_dsim_set_main_disp_sync_area(struct dsim_global *dsim,
+ unsigned short vert, unsigned short hori);
+extern void s5p_dsim_set_sub_disp_resol(struct dsim_global *dsim,
+ unsigned short vert, unsigned short hori);
+extern void s5p_dsim_init_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd_info,
+ struct dsim_lcd_config *sub_lcd_info, struct dsim_config *dsim_info);
+extern void s5p_dsim_display_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd);
+extern void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
+ unsigned char count);
+extern void s5p_dsim_enable_lane(struct dsim_global *dsim, unsigned char lane,
+ unsigned char enable);
+extern void s5p_dsim_enable_afc(struct dsim_global *dsim, unsigned char enable,
+ unsigned char afc_code);
+extern void s5p_dsim_enable_pll_bypass(struct dsim_global *dsim,
+ unsigned char enable);
+extern void s5p_dsim_set_pll_pms(struct dsim_global *dsim, unsigned char p,
+ unsigned short m, unsigned short s);
+extern void s5p_dsim_pll_freq_band(struct dsim_global *dsim,
+ unsigned char freq_band);
+extern void s5p_dsim_pll_freq(struct dsim_global *dsim,
+ unsigned char pre_divider, unsigned short main_divider,
+ unsigned char scaler);
+extern void s5p_dsim_pll_stable_time(struct dsim_global *dsim,
+ unsigned int lock_time);
+extern void s5p_dsim_enable_pll(struct dsim_global *dsim,
+ unsigned char enable);
+extern void s5p_dsim_set_byte_clock_src(struct dsim_global *dsim,
+ unsigned char src);
+extern void s5p_dsim_enable_byte_clock(struct dsim_global *dsim,
+ unsigned char enable);
+extern void s5p_dsim_set_esc_clk_prs(struct dsim_global *dsim,
+ unsigned char enable, unsigned short prs_val);
+extern void s5p_dsim_enable_esc_clk_on_lane(struct dsim_global *dsim,
+ unsigned char lane_sel, unsigned char enable);
+extern void s5p_dsim_force_dphy_stop_state(struct dsim_global *dsim,
+ unsigned char enable);
+extern unsigned char s5p_dsim_is_lane_state(struct dsim_global *dsim,
+ unsigned char lane);
+extern void s5p_dsim_set_stop_state_counter(struct dsim_global *dsim,
+ unsigned short cnt_val);
+extern void s5p_dsim_set_bta_timeout(struct dsim_global *dsim,
+ unsigned char timeout);
+extern void s5p_dsim_set_lpdr_timeout(struct dsim_global *dsim,
+ unsigned short timeout);
+extern void s5p_dsim_set_data_mode(struct dsim_global *dsim,
+ unsigned char data, unsigned char state);
+extern void s5p_dsim_enable_hs_clock(struct dsim_global *dsim,
+ unsigned char enable);
+extern void s5p_dsim_dp_dn_swap(struct dsim_global *dsim,
+ unsigned char swap_en);
+extern void s5p_dsim_hs_zero_ctrl(struct dsim_global *dsim,
+ unsigned char hs_zero);
+extern void s5p_dsim_prep_ctrl(struct dsim_global *dsim, unsigned char prep);
+extern void s5p_dsim_clear_interrupt(struct dsim_global *dsim,
+ unsigned int int_src);
+extern unsigned char s5p_dsim_is_pll_stable(struct dsim_global *dsim);
+extern unsigned int s5p_dsim_get_fifo_state(struct dsim_global *dsim);
+extern unsigned int _s5p_dsim_get_frame_done_status(struct dsim_global *dsim);
+extern void _s5p_dsim_clear_frame_done(struct dsim_global *dsim);
+extern void s5p_dsim_wr_tx_header(struct dsim_global *dsim,
+ unsigned char di, unsigned char data0, unsigned char data1);
+extern void s5p_dsim_wr_tx_data(struct dsim_global *dsim, unsigned int tx_data);
+
+#endif /* _S5P_DSIM_LOWLEVEL_H */
[-- Attachment #1.2: Type: text/html, Size: 97381 bytes --]
[-- Attachment #2: Type: text/plain, Size: 176 bytes --]
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 30+ messages in thread
* [PATCH 2/2] S5PV210: Add MIPI-DSI Driver.
@ 2010-07-02 8:51 ` InKi Dae
0 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-02 8:51 UTC (permalink / raw)
To: linux-arm-kernel
this patch addes MIPI-DSI Driver.
to use this driver, some structures below should be added to machine
specific file.
struct dsim_config
- define clock info, data lane count and video mode info for MIPI-DSI
Controller.
struct dsim_lcd_config
- define interface mode, channel ID, Pixel format and so on.
struct s5p_platform_dsim
- define callbacks for initializing D-PHY, MIPI reset and trigger
releated interfaces of s3c-fb.c file.
Signed-off-by: InKi Dae <inki.dae at samsung.com <mailto:p.osciak@samsung.com>>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com
<mailto:kyungmin.park@samsung.com>>
---
diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
index 2a25ab4..f716678 100644
--- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
+++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
@@ -162,6 +162,7 @@
/* MIPI */
#define S5P_MIPI_DPHY_EN (3)
+#define S5P_MIPI_M_RESETN (1 << 1)
/* S5P_DAC_CONTROL */
#define S5P_DAC_ENABLE (1)
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index b1d82cc..3cd43f2 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -49,6 +49,9 @@ obj-$(CONFIG_S3C_DEV_RTC) += dev-rtc.o
obj-$(CONFIG_SAMSUNG_DEV_ADC) += dev-adc.o
obj-$(CONFIG_SAMSUNG_DEV_TS) += dev-ts.o
+# Device setup - MIPI-DSI
+obj-$(CONFIG_S5P_MIPI_DSI) += setup-dsim.o
+
# DMA support
obj-$(CONFIG_S3C_DMA) += dma.o
diff --git a/arch/arm/plat-samsung/include/plat/dsim.h b/arch/arm/plat-samsung/include/plat/dsim.h
new file mode 100644
index 0000000..28bc595
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/dsim.h
@@ -0,0 +1,470 @@
+/* linux/arm/arch/mach-s5pc110/include/mach/dsim.h
+ *
+ * Platform data header for Samsung MIPI-DSIM.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _DSIM_H
+#define _DSIM_H
+
+#include <linux/device.h>
+
+/* h/w configuration */
+#define MIPI_FIN 24000000
+#define DSIM_TIMEOUT_MS 5000
+#define DSIM_NO_OF_INTERRUPT 26
+#define DSIM_PM_STABLE_TIME 10
+
+#define DSIM_TRUE 1
+#define DSIM_FALSE 0
+
+#define DSIM_HEADER_FIFO_SZ 16
+
+enum dsim_interface_type {
+ DSIM_COMMAND = 0,
+ DSIM_VIDEO = 1,
+};
+
+enum dsim_state {
+ DSIM_STATE_RESET = 0,
+ DSIM_STATE_INIT = 1,
+ DSIM_STATE_STOP = 2,
+ DSIM_STATE_HSCLKEN = 3,
+ DSIM_STATE_ULPS = 4,
+};
+
+enum {
+ DSIM_NONE_STATE = 0,
+ DSIM_RESUME_COMPLETE = 1,
+ DSIM_FRAME_DONE = 2,
+};
+
+enum dsim_virtual_ch_no {
+ DSIM_VIRTUAL_CH_0 = 0,
+ DSIM_VIRTUAL_CH_1 = 1,
+ DSIM_VIRTUAL_CH_2 = 2,
+ DSIM_VIRTUAL_CH_3 = 3,
+};
+
+enum dsim_video_mode_type {
+ DSIM_NON_BURST_SYNC_EVENT = 0,
+ DSIM_NON_BURST_SYNC_PULSE = 2,
+ DSIM_BURST = 3,
+ DSIM_NON_VIDEO_MODE = 4,
+};
+
+enum dsim_fifo_state {
+ DSIM_RX_DATA_FULL = (1 << 25),
+ DSIM_RX_DATA_EMPTY = (1 << 24),
+ SFR_HEADER_FULL = (1 << 23),
+ SFR_HEADER_EMPTY = (1 << 22),
+ SFR_PAYLOAD_FULL = (1 << 21),
+ SFR_PAYLOAD_EMPTY = (1 << 20),
+ I80_HEADER_FULL = (1 << 19),
+ I80_HEADER_EMPTY = (1 << 18),
+ I80_PALOAD_FULL = (1 << 17),
+ I80_PALOAD_EMPTY = (1 << 16),
+ SUB_DISP_HEADER_FULL = (1 << 15),
+ SUB_DISP_HEADER_EMPTY = (1 << 14),
+ SUB_DISP_PAYLOAD_FULL = (1 << 13),
+ SUB_DISP_PAYLOAD_EMPTY = (1 << 12),
+ MAIN_DISP_HEADER_FULL = (1 << 11),
+ MAIN_DISP_HEADER_EMPTY = (1 << 10),
+ MAIN_DISP_PAYLOAD_FULL = (1 << 9),
+ MAIN_DISP_PAYLOAD_EMPTY = (1 << 8),
+};
+
+enum dsim_no_of_data_lane {
+ DSIM_DATA_LANE_1 = 0,
+ DSIM_DATA_LANE_2 = 1,
+ DSIM_DATA_LANE_3 = 2,
+ DSIM_DATA_LANE_4 = 3,
+};
+
+enum dsim_byte_clk_src {
+ DSIM_PLL_OUT_DIV8 = 0,
+ DSIM_EXT_CLK_DIV8 = 1,
+ DSIM_EXT_CLK_BYPASS = 2,
+};
+
+enum dsim_lane {
+ DSIM_LANE_DATA0 = (1 << 0),
+ DSIM_LANE_DATA1 = (1 << 1),
+ DSIM_LANE_DATA2 = (1 << 2),
+ DSIM_LANE_DATA3 = (1 << 3),
+ DSIM_LANE_DATA_ALL = 0xf,
+ DSIM_LANE_CLOCK = (1 << 4),
+ DSIM_LANE_ALL = DSIM_LANE_CLOCK | DSIM_LANE_DATA_ALL,
+};
+
+enum dsim_pixel_format {
+ DSIM_CMD_3BPP = 0,
+ DSIM_CMD_8BPP = 1,
+ DSIM_CMD_12BPP = 2,
+ DSIM_CMD_16BPP = 3,
+ DSIM_VID_16BPP_565 = 4,
+ DSIM_VID_18BPP_666PACKED = 5,
+ DSIM_18BPP_666LOOSELYPACKED = 6,
+ DSIM_24BPP_888 = 7,
+};
+
+enum dsim_lane_state {
+ DSIM_LANE_STATE_HS_READY,
+ DSIM_LANE_STATE_ULPS,
+ DSIM_LANE_STATE_STOP,
+ DSIM_LANE_STATE_LPDT,
+};
+
+enum dsim_transfer {
+ DSIM_TRANSFER_NEITHER = 0,
+ DSIM_TRANSFER_BYCPU = (1 << 7),
+ DSIM_TRANSFER_BYLCDC = (1 << 6),
+ DSIM_TRANSFER_BOTH = (0x3 << 6)
+};
+
+enum dsim_lane_change {
+ DSIM_NO_CHANGE = 0,
+ DSIM_DATA_LANE_CHANGE = 1,
+ DSIM_CLOCK_NALE_CHANGE = 2,
+ DSIM_ALL_LANE_CHANGE = 3,
+};
+
+enum dsim_int_src {
+ DSIM_ALL_OF_INTR = 0xffffffff,
+ DSIM_PLL_STABLE = (1 << 31),
+};
+
+enum dsim_data_id {
+ /* short packet types of packet types for command */
+ GEN_SHORT_WR_NO_PARA = 0x03,
+ GEN_SHORT_WR_1_PARA = 0x13,
+ GEN_SHORT_WR_2_PARA = 0x23,
+ GEN_RD_NO_PARA = 0x04,
+ GEN_RD_1_PARA = 0x14,
+ GEN_RD_2_PARA = 0x24,
+ DCS_WR_NO_PARA = 0x05,
+ DCS_WR_1_PARA = 0x15,
+ DCS_RD_NO_PARA = 0x06,
+ SET_MAX_RTN_PKT_SIZE = 0x37,
+
+ /* long packet types of packet types for command */
+ NULL_PKT = 0x09,
+ BLANKING_PKT = 0x19,
+ GEN_LONG_WR = 0x29,
+ DCS_LONG_WR = 0x39,
+
+ /* short packet types of generic command */
+ CMD_OFF = 0x02,
+ CMD_ON = 0x12,
+ SHUT_DOWN = 0x22,
+ TURN_ON = 0x32,
+
+ /* short packet types for video data */
+ VSYNC_START = 0x01,
+ VSYNC_END = 0x11,
+ HSYNC_START = 0x21,
+ HSYNC_END = 0x31,
+ EOT_PKT = 0x08,
+
+ /* long packet types for video data */
+ RGB565_PACKED = 0x0e,
+ RGB666_PACKED = 0x1e,
+ RGB666_LOOSLY = 0x2e,
+ RGB888_PACKED = 0x3e,
+};
+
+/**
+ * struct dsim_config - interface for configuring mipi-dsi controller.
+ *
+ * @auto_flush: enable or disable Auto flush of MD FIFO using VSYNC pulse.
+ * @eot_disable: enable or disable EoT packet in HS mode.
+ * @auto_vertical_cnt: specifies auto vertical count mode.
+ * in Video mode, the vertical line transition uses line counter
+ * configured by VSA, VBP, and Vertical resolution.
+ * If this bit is set to '1', the line counter does not use VSA and VBP
+ * registers.(in command mode, this variable is ignored)
+ * @hse: set horizontal sync event mode.
+ * In VSYNC pulse and Vporch area, MIPI DSI master transfers only HSYNC
+ * start packet to MIPI DSI slave at MIPI DSI spec1.1r02.
+ * this bit transfers HSYNC end packet in VSYNC pulse and Vporch area
+ * (in mommand mode, this variable is ignored)
+ * @hfp: specifies HFP disable mode.
+ * if this variable is set, DSI master ignores HFP area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @hbp: specifies HBP disable mode.
+ * if this variable is set, DSI master ignores HBP area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @hsa: specifies HSA disable mode.
+ * if this variable is set, DSI master ignores HSA area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @e_no_data_lane: specifies data lane count to be used by Master.
+ * @e_byte_clk: select byte clock source. (it must be DSIM_PLL_OUT_DIV8)
+ * DSIM_EXT_CLK_DIV8 and DSIM_EXT_CLK_BYPASSS are not supported.
+ * @pll_stable_time: specifies the PLL Timer for stability of the ganerated
+ * clock(System clock cycle base)
+ * if the timer value goes to 0x00000000, the clock stable bit of status
+ * and interrupt register is set.
+ * @esc_clk: specifies escape clock frequency for getting the escape clock
+ * prescaler value.
+ * @stop_holding_cnt: specifies the interval value between transmitting
+ * read packet(or write "set_tear_on" command) and BTA request.
+ * after transmitting read packet or write "set_tear_on" command,
+ * BTA requests to D-PHY automatically. this counter value specifies
+ * the interval between them.
+ * @bta_timeout: specifies the timer for BTA.
+ * this register specifies time out from BTA request to change
+ * the direction with respect to Tx escape clock.
+ * @rx_timeout: specifies the timer for LP Rx mode timeout.
+ * this register specifies time out on how long RxValid deasserts,
+ * after RxLpdt asserts with respect to Tx escape clock.
+ * - RxValid specifies Rx data valid indicator.
+ * - RxLpdt specifies an indicator that D-PHY is under RxLpdt mode.
+ * - RxValid and RxLpdt specifies signal from D-PHY.
+ * @e_lane_swap: swaps Dp/Dn channel of Clock lane or Data lane.
+ * if this bit is set, Dp and Dn channel would be swapped each other.
+ */
+struct dsim_config {
+ unsigned char auto_flush;
+ unsigned char eot_disable;
+
+ unsigned char auto_vertical_cnt;
+ unsigned char hse;
+ unsigned char hfp;
+ unsigned char hbp;
+ unsigned char hsa;
+
+ enum dsim_no_of_data_lane e_no_data_lane;
+ enum dsim_byte_clk_src e_byte_clk;
+
+ /*
+ * ===========================================
+ * | P | M | S | MHz |
+ * -------------------------------------------
+ * | 3 | 100 | 3 | 100 |
+ * | 3 | 100 | 2 | 200 |
+ * | 3 | 63 | 1 | 252 |
+ * | 4 | 100 | 1 | 300 |
+ * | 4 | 110 | 1 | 330 |
+ * | 12 | 350 | 1 | 350 |
+ * | 3 | 100 | 1 | 400 |
+ * | 4 | 150 | 1 | 450 |
+ * | 3 | 118 | 1 | 472 |
+ * | 12 | 250 | 0 | 500 |
+ * | 4 | 100 | 0 | 600 |
+ * | 3 | 81 | 0 | 648 |
+ * | 3 | 88 | 0 | 704 |
+ * | 3 | 90 | 0 | 720 |
+ * | 3 | 100 | 0 | 800 |
+ * | 12 | 425 | 0 | 850 |
+ * | 4 | 150 | 0 | 900 |
+ * | 12 | 475 | 0 | 950 |
+ * | 6 | 250 | 0 | 1000 |
+ * -------------------------------------------
+ */
+ unsigned char p;
+ unsigned short m;
+ unsigned char s;
+
+ unsigned int pll_stable_time;
+ unsigned long esc_clk;
+
+ unsigned short stop_holding_cnt;
+ unsigned char bta_timeout;
+ unsigned short rx_timeout;
+ enum dsim_video_mode_type e_lane_swap;
+};
+
+/**
+ * struct dsim_lcd_config - interface for configuring mipi-dsi based lcd panel.
+ *
+ * @e_interface: specifies interface to be used.(CPU or RGB interface)
+ * @parameter[0]: specifies virtual channel number
+ * that main or sub diaplsy uses.
+ * @parameter[1]: specifies pixel stream format for main or sub display.
+ * @parameter[2]: selects Burst mode in Video mode.
+ * in Non-burst mode, RGB data area is filled with RGB data and NULL
+ * packets, according to input bandwidth of RGB interface.
+ * In Burst mode, RGB data area is filled with RGB data only.
+ * @lcd_panel_info: pointer for lcd panel specific structure.
+ * this structure specifies width, height, timing and polarity and so on.
+ * @mipi_ddi_pd: pointer for lcd panel platform data.
+ */
+struct dsim_lcd_config {
+ enum dsim_interface_type e_interface;
+ unsigned int parameter[3];
+
+ void *lcd_panel_info;
+ void *mipi_ddi_pd;
+};
+
+struct dsim_global;
+struct fb_info;
+
+/**
+ * struct s5p_platform_dsim - interface to platform data for mipi-dsi driver.
+ *
+ * @clk_name: specifies clock name for mipi-dsi.
+ * @lcd_panel_name: specifies lcd panel name registered to mipi-dsi driver.
+ * lcd panel driver searched would be actived.
+ * @platfrom_rev: specifies platform revision number.
+ * revision number should become 1.
+ * @dsim_config: pointer of structure for configuring mipi-dsi controller.
+ * @dsim_lcd_info: pointer to structure for configuring
+ * mipi-dsi based lcd panel.
+ * @mipi_power: callback pointer for enabling or disabling mipi power.
+ * @part_reset: callback pointer for reseting mipi phy.
+ * @init_d_phy: callback pointer for enabing d_phy of dsi master.
+ * @get_fb_frame_done: callback pointer for getting frame done status of the
+ * display controller(FIMD).
+ * @trigger: callback pointer for triggering display controller(FIMD)
+ * in case of CPU mode.
+ * @delay_for_stabilization: specifies stable time.
+ * this delay needs when writing data on SFR
+ * after mipi mode became LP mode.
+ */
+struct s5p_platform_dsim {
+ char *clk_name;
+ char lcd_panel_name[64];
+ unsigned int platform_rev;
+
+ struct dsim_config *dsim_info;
+ struct dsim_lcd_config *dsim_lcd_info;
+
+ unsigned int delay_for_stabilization;
+
+ int (*mipi_power) (struct dsim_global *dsim, void *p_mipi_1_1v,
+ void *p_mipi_1_8v, int enable);
+ int (*part_reset) (struct dsim_global *dsim);
+ int (*init_d_phy) (struct dsim_global *dsim);
+ int (*get_fb_frame_done) (struct fb_info *info);
+ void (*trigger) (struct fb_info *info);
+};
+
+/**
+ * struct dsim_global - global interface for mipi-dsi driver.
+ *
+ * @dev: driver model representation of the device.
+ * @clock: pointer to MIPI-DSI clock of clock framework.
+ * @irq: interrupt number to MIPI-DSI controller.
+ * @reg_base: base address to memory mapped SRF of MIPI-DSI controller.
+ * (virtual address)
+ * @r_mipi_1_1v: pointer to regulator for MIPI 1.1v power.
+ * @r_mipi_1_8v: pointer to regulator for MIPI 1.8v power.
+ * @pd: pointer to MIPI-DSI driver platform data.
+ * @dsim_lcd_info: pointer to structure for configuring
+ * mipi-dsi based lcd panel.
+ * @lcd_panel_info: pointer for lcd panel specific structure.
+ * this structure specifies width, height, timing and polarity and so on.
+ * @mipi_ddi_pd: pointer for lcd panel platform data.
+ * @mipi_drv: pointer to driver structure for mipi-dsi based lcd panel.
+ * @s3cfb_notif: kernel notifier structure to be registered
+ * by device specific framebuffer driver.
+ * this notifier could be used by fb_blank of device specifiec
+ * framebuffer driver.
+ * @state: specifies status of MIPI-DSI controller.
+ * the status could be RESET, INIT, STOP, HSCLKEN and ULPS.
+ * @data_lane: specifiec enabled data lane number.
+ * this variable would be set by driver according to e_no_data_lane
+ * automatically.
+ * @e_clk_src: select byte clock source.
+ * this variable would be set by driver according to e_byte_clock
+ * automatically.
+ * @hs_clk: HS clock rate.
+ * this variable would be set by driver automatically.
+ * @byte_clk: Byte clock rate.
+ * this variable would be set by driver automatically.
+ * @escape_clk: ESCAPE clock rate.
+ * this variable would be set by driver automatically.
+ * @freq_band: indicates Bitclk frequency band for D-PHY global timing.
+ * Serial Clock(=ByteClk X 8) FreqBand[3:0]
+ * ~ 99.99 MHz 0000
+ * 100 ~ 119.99 MHz 0001
+ * 120 ~ 159.99 MHz 0010
+ * 160 ~ 199.99 MHz 0011
+ * 200 ~ 239.99 MHz 0100
+ * 140 ~ 319.99 MHz 0101
+ * 320 ~ 389.99 MHz 0110
+ * 390 ~ 449.99 MHz 0111
+ * 450 ~ 509.99 MHz 1000
+ * 510 ~ 559.99 MHz 1001
+ * 560 ~ 639.99 MHz 1010
+ * 640 ~ 689.99 MHz 1011
+ * 690 ~ 769.99 MHz 1100
+ * 770 ~ 869.99 MHz 1101
+ * 870 ~ 949.99 MHz 1110
+ * 950 ~ 1000 MHz 1111
+ * this variable would be calculated by driver automatically.
+ *
+ * @header_fifo_index: specifies header fifo index.
+ * this variable is not used yet.
+ */
+struct dsim_global {
+ struct device *dev;
+ struct clk *clock;
+ unsigned int irq;
+ unsigned int reg_base;
+
+ struct regulator *r_mipi_1_1v;
+ struct regulator *r_mipi_1_8v;
+
+ struct s5p_platform_dsim *pd;
+ struct dsim_config *dsim_info;
+ struct dsim_lcd_config *dsim_lcd_info;
+ struct fb_videomode *lcd_panel_info;
+ struct mipi_ddi_platform_data *mipi_ddi_pd;
+ struct mipi_lcd_driver *mipi_drv;
+ struct notifier_block s3cfb_notif;
+
+ unsigned char state;
+ unsigned int data_lane;
+ enum dsim_byte_clk_src e_clk_src;
+ unsigned long hs_clk;
+ unsigned long byte_clk;
+ unsigned long escape_clk;
+ unsigned char freq_band;
+
+ char header_fifo_index[DSIM_HEADER_FIFO_SZ];
+};
+
+/*
+ * driver structure for mipi-dsi based lcd panel.
+ *
+ * this structure should be registered by lcd panel driver.
+ * mipi-dsi driver seeks lcd panel registered through name field
+ * and calls these callback functions in appropriate time.
+ */
+struct mipi_lcd_driver {
+ s8 name[64];
+
+ s32 (*init)(struct device *dev);
+ void (*display_on)(struct device *dev);
+ s32 (*set_link)(struct mipi_ddi_platform_data *pd);
+ s32 (*probe)(struct device *dev);
+ s32 (*remove)(struct device *dev);
+ void (*shutdown)(struct device *dev);
+ s32 (*suspend)(struct device *dev, pm_message_t mesg);
+ s32 (*resume)(struct device *dev);
+};
+
+/*
+ * register mipi_lcd_driver object defined by lcd panel driver
+ * to mipi-dsi driver.
+ */
+extern int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv);
+
+/* reset MIPI PHY through MIPI PHY CONTROL REGISTER. */
+extern int s5p_dsim_part_reset(struct dsim_global *dsim);
+/* enable MIPI D-PHY and DSI Master block. */
+extern int s5p_dsim_init_d_phy(struct dsim_global *dsim);
+
+/* enable regulators to MIPI-DSI power. */
+extern int s5p_dsim_mipi_power(struct dsim_global *dsim, void *p_mipi_1_1v,
+ void *p_mipi_1_8v, int enable);
+
+#endif /* _DSIM_H */
diff --git a/arch/arm/plat-samsung/include/plat/mipi_ddi.h b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
new file mode 100644
index 0000000..57ed613
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
@@ -0,0 +1,98 @@
+/* linux/arm/arch/mach-s5pc110/include/mach/mipi_ddi.h
+ *
+ * definitions for DDI based MIPI-DSI.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _MIPI_DDI_H
+#define _MIPI_DDI_H
+
+enum mipi_ddi_interface {
+ RGB_IF = 0x4000,
+ I80_IF = 0x8000,
+ YUV_601 = 0x10000,
+ YUV_656 = 0x20000,
+ MIPI_VIDEO = 0x1000,
+ MIPI_COMMAND = 0x2000,
+};
+
+enum mipi_ddi_panel_select {
+ DDI_MAIN_LCD = 0,
+ DDI_SUB_LCD = 1,
+};
+
+enum mipi_ddi_model {
+ S6DR117 = 0,
+};
+
+enum mipi_ddi_parameter {
+ /* DSIM video interface parameter */
+ DSI_VIRTUAL_CH_ID = 0,
+ DSI_FORMAT = 1,
+ DSI_VIDEO_MODE_SEL = 2,
+};
+
+struct lcd_device;
+struct fb_info;
+
+struct mipi_ddi_platform_data {
+ void *dsim_data;
+ /*
+ * it is used for command mode lcd panel and
+ * when all contents of framebuffer in panel module are transfered
+ * to lcd panel it occurs te signal.
+ *
+ * note:
+ * - in case of command mode(cpu mode), it should be triggered only
+ * when TE signal of lcd panel and frame done interrupt of display
+ * controller or mipi controller occurs.
+ */
+ unsigned int te_irq;
+
+ /*
+ * it is used for PM stable time at te interrupt handler and
+ * could be used according to lcd panel characteristic or not.
+ */
+ unsigned int resume_complete;
+
+ int (*lcd_reset) (struct lcd_device *ld);
+ int (*lcd_power_on) (struct lcd_device *ld, int enable);
+ int (*backlight_on) (int enable);
+
+ /* transfer command to lcd panel at LP mode. */
+ int (*cmd_write) (void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+ int (*cmd_read) (void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+ /*
+ * get the status that all screen data have been transferred
+ * to mipi-dsi.
+ */
+ int (*get_dsim_frame_done) (void *dsim_data);
+ int (*clear_dsim_frame_done) (void *dsim_data);
+
+ /*
+ * changes mipi transfer mode to LP or HS mode.
+ *
+ * LP mode needs when some commands like gamma values transfers
+ * to lcd panel.
+ */
+ int (*change_dsim_transfer_mode) (int mode);
+
+ /* get frame done status of display controller. */
+ int (*get_fb_frame_done) (struct fb_info *info);
+ /* trigger display controller in case of cpu mode. */
+ void (*trigger) (struct fb_info *info);
+
+ unsigned int reset_delay;
+ unsigned int power_on_delay;
+ unsigned int power_off_delay;
+};
+
+#endif /* _MIPI_DDI_H */
diff --git a/arch/arm/plat-samsung/include/plat/regs-dsim.h b/arch/arm/plat-samsung/include/plat/regs-dsim.h
new file mode 100644
index 0000000..dc83089
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/regs-dsim.h
@@ -0,0 +1,281 @@
+/* linux/arch/arm/plat-s5pc11x/include/plat/regs-dsim.h
+ *
+ * Register definition file for Samsung MIPI-DSIM driver
+ *
+ * InKi Dae <inki.dae@samsung.com>, Copyright (c) 2009 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _REGS_DSIM_H
+#define _REGS_DSIM_H
+
+#define S5P_DSIM_STATUS (0x0) /* Status register */
+#define S5P_DSIM_SWRST (0x4) /* Software reset register */
+#define S5P_DSIM_CLKCTRL (0x8) /* Clock control register */
+#define S5P_DSIM_TIMEOUT (0xc) /* Time out register */
+#define S5P_DSIM_CONFIG (0x10) /* Configuration register */
+#define S5P_DSIM_ESCMODE (0x14) /* Escape mode register */
+
+/* Main display image resolution register */
+#define S5P_DSIM_MDRESOL (0x18)
+#define S5P_DSIM_MVPORCH (0x1c) /* Main display Vporch register */
+#define S5P_DSIM_MHPORCH (0x20) /* Main display Hporch register */
+#define S5P_DSIM_MSYNC (0x24) /* Main display sync area register */
+
+/* Sub display image resolution register */
+#define S5P_DSIM_SDRESOL (0x28)
+#define S5P_DSIM_INTSRC (0x2c) /* Interrupt source register */
+#define S5P_DSIM_INTMSK (0x30) /* Interrupt mask register */
+#define S5P_DSIM_PKTHDR (0x34) /* Packet Header FIFO register */
+#define S5P_DSIM_PAYLOAD (0x38) /* Payload FIFO register */
+#define S5P_DSIM_RXFIFO (0x3c) /* Read FIFO register */
+#define S5P_DSIM_FIFOTHLD (0x40) /* FIFO threshold level register */
+#define S5P_DSIM_FIFOCTRL (0x44) /* FIFO status and control register */
+
+/* FIFO memory AC characteristic register */
+#define S5P_DSIM_MEMACCHR (0x48)
+#define S5P_DSIM_PLLCTRL (0x4c) /* PLL control register */
+#define S5P_DSIM_PLLTMR (0x50) /* PLL timer register */
+#define S5P_DSIM_PHYACCHR (0x54) /* D-PHY AC characteristic register */
+#define S5P_DSIM_PHYACCHR1 (0x58) /* D-PHY AC characteristic register1 */
+
+/* DSIM_SWRST */
+#define DSIM_FUNCRST (1 << 16)
+#define DSIM_SWRST (1 << 0)
+
+/* S5P_DSIM_TIMEOUT */
+#define DSIM_LPDR_TOUT_SHIFT (0)
+#define DSIM_BTA_TOUT_SHIFT (16)
+#define DSIM_LPDR_TOUT(x) (((x) & 0xffff) << DSIM_LPDR_TOUT_SHIFT)
+#define DSIM_BTA_TOUT(x) (((x) & 0xff) << DSIM_BTA_TOUT_SHIFT)
+
+/* S5P_DSIM_CLKCTRL */
+#define DSIM_ESC_PRESCALER_SHIFT (0)
+#define DSIM_LANE_ESC_CLKEN_SHIFT (19)
+#define DSIM_BYTE_CLKEN_SHIFT (24)
+#define DSIM_BYTE_CLK_SRC_SHIFT (25)
+#define DSIM_PLL_BYPASS_SHIFT (27)
+#define DSIM_ESC_CLKEN_SHIFT (28)
+#define DSIM_TX_REQUEST_HSCLK_SHIFT (31)
+#define DSIM_ESC_PRESCALER(x) (((x) & 0xffff) << \
+ DSIM_ESC_PRESCALER_SHIFT)
+#define DSIM_LANE_ESC_CLKEN(x) (((x) & 0x1f) << \
+ DSIM_LANE_ESC_CLKEN_SHIFT)
+#define DSIM_BYTE_CLK_ENABLE (1 << DSIM_BYTE_CLKEN_SHIFT)
+#define DSIM_BYTE_CLK_DISABLE (0 << DSIM_BYTE_CLKEN_SHIFT)
+#define DSIM_BYTE_CLKSRC(x) (((x) & 0x3) << DSIM_BYTE_CLK_SRC_SHIFT)
+#define DSIM_PLL_BYPASS_PLL (0 << DSIM_PLL_BYPASS_SHIFT)
+#define DSIM_PLL_BYPASS_EXTERNAL (1 << DSIM_PLL_BYPASS_SHIFT)
+#define DSIM_ESC_CLKEN_ENABLE (1 << DSIM_ESC_CLKEN_SHIFT)
+#define DSIM_ESC_CLKEN_DISABLE (0 << DSIM_ESC_CLKEN_SHIFT)
+
+/* S5P_DSIM_CONFIG */
+#define DSIM_LANE_EN_SHIFT (0)
+#define DSIM_NUM_OF_DATALANE_SHIFT (5)
+#define DSIM_SUB_PIX_FORMAT_SHIFT (8)
+#define DSIM_MAIN_PIX_FORMAT_SHIFT (12)
+#define DSIM_SUB_VC_SHIFT (16)
+#define DSIM_MAIN_VC_SHIFT (18)
+#define DSIM_HSA_MODE_SHIFT (20)
+#define DSIM_HBP_MODE_SHIFT (21)
+#define DSIM_HFP_MODE_SHIFT (22)
+#define DSIM_HSE_MODE_SHIFT (23)
+#define DSIM_AUTO_MODE_SHIFT (24)
+#define DSIM_VIDEO_MODE_SHIFT (25)
+#define DSIM_BURST_MODE_SHIFT (26)
+#define DSIM_SYNC_INFORM_SHIFT (27)
+#define DSIM_EOT_R03_SHIFT (28)
+#define DSIM_LANE_ENx(x) ((1) << x)
+
+/* in case of Gemunus, it should be 0x1. */
+#define DSIM_NUM_OF_DATA_LANE(x) ((x) << 5)
+#define DSIM_SUB_PIX_FORMAT_3BPP (0 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_8BPP (1 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_12BPP (2 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_16BPP (3 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_16BPP_RGB (4 << 8) /* video mode only */
+#define DSIM_SUB_PIX_FORMAT_18BPP_PRGB (5 << 8) /* video mode only */
+#define DSIM_SUB_PIX_FORMAT_18BPP_LRGB (6 << 8) /* common */
+#define DSIM_SUB_PIX_FORMAT_24BPP_RGB (7 << 8) /* common */
+#define DSIM_MAIN_PIX_FORMAT_3BPP (0 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_8BPP (1 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_12BPP (2 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_16BPP (3 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_16BPP_RGB (4 << 12) /* video mode only */
+#define DSIM_MAIN_PIX_FORMAT_18BPP_PRGB (5 << 12) /* video mode only */
+#define DSIM_MAIN_PIX_FORMAT_18BPP_LRGB (6 << 12) /* common */
+#define DSIM_MAIN_PIX_FORMAT_24BPP_RGB (7 << 12) /* common */
+
+/* Virtual channel number for sub display */
+#define DSIM_SUB_VC(x) (((x) & 0x3) << 16)
+/* Virtual channel number for main display */
+#define DSIM_MAIN_VC(x) (((x) & 0x3) << 18)
+#define DSIM_HSA_MODE_ENABLE (1 << 20)
+#define DSIM_HSA_MODE_DISABLE (0 << 20)
+#define DSIM_HBP_MODE_ENABLE (1 << 21)
+#define DSIM_HBP_MODE_DISABLE (0 << 21)
+#define DSIM_HFP_MODE_ENABLE (1 << 22)
+#define DSIM_HFP_MODE_DISABLE (0 << 22)
+#define DSIM_HSE_MODE_ENABLE (1 << 23)
+#define DSIM_HSE_MODE_DISABLE (0 << 23)
+#define DSIM_AUTO_MODE (1 << 24)
+#define DSIM_CONFIGURATION_MODE (0 << 24)
+#define DSIM_VIDEO_MODE (1 << 25)
+#define DSIM_COMMAND_MODE (0 << 25)
+#define DSIM_BURST_MODE (1 << 26)
+#define DSIM_NON_BURST_MODE (0 << 26)
+#define DSIM_SYNC_INFORM_PULSE (1 << 27)
+#define DSIM_SYNC_INFORM_EVENT (0 << 27)
+/* enable EoT packet generation for V1.01r11 */
+#define DSIM_EOT_R03_ENABLE (0 << 28)
+/* disable EoT packet generation for V1.01r03 */
+#define DSIM_EOT_R03_DISABLE (1 << 28)
+
+/* S5P_DSIM_ESCMODE */
+#define DSIM_STOP_STATE_CNT_SHIFT (21)
+#define DSIM_STOP_STATE_CNT(x) (((x) & 0x3ff) << \
+ DSIM_STOP_STATE_CNT_SHIFT)
+#define DSIM_FORCE_STOP_STATE_SHIFT (20)
+#define DSIM_FORCE_BTA_SHIFT (16)
+#define DSIM_CMD_LPDT_HS_MODE (0 << 7)
+#define DSIM_CMD_LPDT_LP_MODE (1 << 7)
+#define DSIM_TX_LPDT_HS_MODE (0 << 6)
+#define DSIM_TX_LPDT_LP_MODE (1 << 6)
+#define DSIM_TX_TRIGGER_RST_SHIFT (4)
+#define DSIM_TX_UIPS_DAT_SHIFT (3)
+#define DSIM_TX_UIPS_EXIT_SHIFT (2)
+#define DSIM_TX_UIPS_CLK_SHIFT (1)
+#define DSIM_TX_UIPS_CLK_EXIT_SHIFT (0)
+
+/* S5P_DSIM_MDRESOL */
+#define DSIM_MAIN_STAND_BY (1 << 31)
+#define DSIM_MAIN_NOT_READY (0 << 31)
+#define DSIM_MAIN_VRESOL(x) (((x) & 0x7ff) << 16)
+#define DSIM_MAIN_HRESOL(x) (((x) & 0X7ff) << 0)
+
+/* S5P_DSIM_MVPORCH */
+#define DSIM_CMD_ALLOW_SHIFT (28)
+#define DSIM_STABLE_VFP_SHIFT (16)
+#define DSIM_MAIN_VBP_SHIFT (0)
+#define DSIM_CMD_ALLOW_MASK (0xf << DSIM_CMD_ALLOW_SHIFT)
+#define DSIM_STABLE_VFP_MASK (0x7ff << DSIM_STABLE_VFP_SHIFT)
+#define DSIM_MAIN_VBP_MASK (0x7ff << DSIM_MAIN_VBP_SHIFT)
+#define DSIM_CMD_ALLOW(x) (((x) & 0xf) << DSIM_CMD_ALLOW_SHIFT)
+#define DSIM_STABLE_VFP(x) (((x) & 0x7ff) << DSIM_STABLE_VFP_SHIFT)
+#define DSIM_MAIN_VBP(x) (((x) & 0x7ff) << DSIM_MAIN_VBP_SHIFT)
+
+/* S5P_DSIM_MHPORCH */
+#define DSIM_MAIN_HFP_SHIFT (16)
+#define DSIM_MAIN_HBP_SHIFT (0)
+#define DSIM_MAIN_HFP_MASK ((0xffff) << DSIM_MAIN_HFP_SHIFT)
+#define DSIM_MAIN_HBP_MASK ((0xffff) << DSIM_MAIN_HBP_SHIFT)
+#define DSIM_MAIN_HFP(x) (((x) & 0xffff) << DSIM_MAIN_HFP_SHIFT)
+#define DSIM_MAIN_HBP(x) (((x) & 0xffff) << DSIM_MAIN_HBP_SHIFT)
+
+/* S5P_DSIM_MSYNC */
+#define DSIM_MAIN_VSA_SHIFT (22)
+#define DSIM_MAIN_HSA_SHIFT (0)
+#define DSIM_MAIN_VSA_MASK ((0x3ff) << DSIM_MAIN_VSA_SHIFT)
+#define DSIM_MAIN_HSA_MASK ((0xffff) << DSIM_MAIN_HSA_SHIFT)
+#define DSIM_MAIN_VSA(x) (((x) & 0x3ff) << DSIM_MAIN_VSA_SHIFT)
+#define DSIM_MAIN_HSA(x) (((x) & 0xffff) << DSIM_MAIN_HSA_SHIFT)
+
+/* S5P_DSIM_SDRESOL */
+#define DSIM_SUB_STANDY_SHIFT (31)
+#define DSIM_SUB_VRESOL_SHIFT (16)
+#define DSIM_SUB_HRESOL_SHIFT (0)
+#define DSIM_SUB_STANDY_MASK ((0x1) << DSIM_SUB_STANDY_SHIFT)
+#define DSIM_SUB_VRESOL_MASK ((0x7ff) << DSIM_SUB_VRESOL_SHIFT)
+#define DSIM_SUB_HRESOL_MASK ((0x7ff) << DSIM_SUB_HRESOL_SHIFT)
+#define DSIM_SUB_STANDY (1 << DSIM_SUB_STANDY_SHIFT)
+#define DSIM_SUB_NOT_READY (0 << DSIM_SUB_STANDY_SHIFT)
+#define DSIM_SUB_VRESOL(x) (((x) & 0x7ff) << DSIM_SUB_VRESOL_SHIFT)
+#define DSIM_SUB_HRESOL(x) (((x) & 0x7ff) << DSIM_SUB_HRESOL_SHIFT)
+
+/* S5P_DSIM_INTSRC */
+#define INTSRC_ERR_CONTENT_LP1 (1 << 0)
+#define INTSRC_ERR_CONTENT_LP0 (1 << 1)
+#define INTSRC_ERR_CONTROL0 (1 << 2)
+#define INTSRC_ERR_CONTROL1 (1 << 3)
+#define INTSRC_ERR_CONTROL2 (1 << 4)
+#define INTSRC_ERR_CONTROL3 (1 << 5)
+#define INTSRC_ERR_SYNC0 (1 << 6)
+#define INTSRC_ERR_SYNC1 (1 << 7)
+#define INTSRC_ERR_SYNC2 (1 << 8)
+#define INTSRC_ERR_SYNC3 (1 << 9)
+#define INTSRC_ERR_ESC0 (1 << 10)
+#define INTSRC_ERR_ESC1 (1 << 11)
+#define INTSRC_ERR_ESC2 (1 << 12)
+#define INTSRC_ERR_ESC3 (1 << 13)
+#define INTSRC_ERR_RX_CRC (1 << 14)
+#define INTSRC_ERR_RX_ECC (1 << 15)
+#define INTSRC_RX_ACK (1 << 16)
+#define INTSRC_RX_TE (1 << 17)
+#define INTSRC_RX_DAT_DONE (1 << 18)
+#define INTSRC_TA_TOUT (1 << 20)
+#define INTSRC_LPDR_TOUT (1 << 21)
+#define INTSRC_FRAME_DONE (1 << 24)
+#define INTSRC_BUS_TURN_OVER (1 << 25)
+#define INTSRC_SYNC_OVERRIDE (1 << 28)
+#define INTSRC_SFR_FIFO_EMPTY (1 << 29)
+#define INTSRC_SW_RST_RELEASE (1 << 30)
+#define INTSRC_PLL_STABLE (1 << 31)
+
+/* S5P_DSIM_INTMSK */
+#define INTMSK_ERR_CONTENT_LP1 (1 << 0)
+#define INTMSK_ERR_CONTENT_LP0 (1 << 1)
+#define INTMSK_ERR_CONTROL0 (1 << 2)
+#define INTMSK_ERR_CONTROL1 (1 << 3)
+#define INTMSK_ERR_CONTROL2 (1 << 4)
+#define INTMSK_ERR_CONTROL3 (1 << 5)
+#define INTMSK_ERR_SYNC0 (1 << 6)
+#define INTMSK_ERR_SYNC1 (1 << 7)
+#define INTMSK_ERR_SYNC2 (1 << 8)
+#define INTMSK_ERR_SYNC3 (1 << 9)
+#define INTMSK_ERR_ESC0 (1 << 10)
+#define INTMSK_ERR_ESC1 (1 << 11)
+#define INTMSK_ERR_ESC2 (1 << 12)
+#define INTMSK_ERR_ESC3 (1 << 13)
+#define INTMSK_ERR_RX_CRC (1 << 14)
+#define INTMSK_ERR_RX_ECC (1 << 15)
+#define INTMSK_RX_ACK (1 << 16)
+#define INTMSK_RX_TE (1 << 17)
+#define INTMSK_RX_DAT_DONE (1 << 18)
+#define INTMSK_TA_TOUT (1 << 20)
+#define INTMSK_LPDR_TOUT (1 << 21)
+#define INTMSK_FRAME_DONE (1 << 24)
+#define INTMSK_BUS_TURN_OVER (1 << 25)
+#define INTMSK_SFR_FIFO_EMPTY (1 << 29)
+#define INTMSK_SW_RST_RELEASE (1 << 30)
+#define INTMSK_PLL_STABLE (1 << 31)
+
+/* S5P_DSIM_PKTHDR */
+#define DSIM_PACKET_HEADER_DI(x) (((x) & 0xff) << 0)
+/* Word count lower byte for long packet */
+#define DSIM_PACKET_HEADER_DAT0(x) (((x) & 0xff) << 8)
+/* Word count upper byte for long packet */
+#define DSIM_PACKET_HEADER_DAT1(x) (((x) & 0xff) << 16)
+
+/* S5P_DSIM_FIFOCTRL */
+#define DSIM_RX_FIFO (1 << 4)
+#define DSIM_TX_SFR_FIFO (1 << 3)
+#define DSIM_I80_FIFO (1 << 2)
+#define DSIM_SUB_DISP_FIFO (1 << 1)
+#define DSIM_MAIN_DISP_FIFO (1 << 0)
+
+/* S5P_DSIM_PHYACCHR */
+#define DSIM_AFC_CTL(x) (((x) & 0x7) << 5)
+#define DSIM_AFC_ENABLE (1 << 14)
+#define DSIM_AFC_DISABLE (0 << 14)
+
+/* S5P_DSIM_PLLCTRL */
+#define DSIM_PMS_SHIFT (1)
+#define DSIM_PLL_EN_SHIFT (23)
+#define DSIM_FREQ_BAND_SHIFT (24)
+#define DSIM_PMS(x) (((x) & 0x7ffff) << DSIM_PMS_SHIFT)
+#define DSIM_FREQ_BAND(x) (((x) & 0xf) << DSIM_FREQ_BAND_SHIFT)
+
+#endif /* _REGS_DSIM_H */
diff --git a/arch/arm/plat-samsung/setup-dsim.c b/arch/arm/plat-samsung/setup-dsim.c
new file mode 100644
index 0000000..833ade2
--- /dev/null
+++ b/arch/arm/plat-samsung/setup-dsim.c
@@ -0,0 +1,161 @@
+/*
+ * S5PC110 MIPI-DSIM driver.
+ *
+ * Author: InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/regulator/consumer.h>
+
+#include <mach/map.h>
+#include <mach/regs-clock.h>
+
+#include <plat/dsim.h>
+#include <plat/clock.h>
+#include <plat/regs-dsim.h>
+
+static int s5p_dsim_enable_d_phy(struct dsim_global *dsim, unsigned int enable)
+{
+ unsigned int reg;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim is NULL.\n");
+ return -EFAULT;
+ }
+
+ reg = (readl(S5P_MIPI_CONTROL)) & ~(1 << 0);
+ reg |= (enable << 0);
+ writel(reg, S5P_MIPI_CONTROL);
+
+ dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
+
+ return 0;
+}
+
+static int s5p_dsim_enable_dsi_master(struct dsim_global *dsim,
+ unsigned int enable)
+{
+ unsigned int reg;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim is NULL.\n");
+ return -EFAULT;
+ }
+
+ reg = (readl(S5P_MIPI_CONTROL)) & ~(1 << 2);
+ reg |= (enable << 2);
+ writel(reg, S5P_MIPI_CONTROL);
+
+ dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
+
+ return 0;
+}
+
+int s5p_dsim_part_reset(struct dsim_global *dsim)
+{
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim is NULL.\n");
+ return -EFAULT;
+ }
+
+ writel(S5P_MIPI_M_RESETN, S5P_MIPI_PHY_CON0);
+
+ dev_dbg(dsim->dev, "%s\n", __func__);
+
+ return 0;
+}
+
+int s5p_dsim_init_d_phy(struct dsim_global *dsim)
+{
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim is NULL.\n");
+ return -EFAULT;
+ }
+
+ /* enable D-PHY */
+ s5p_dsim_enable_d_phy(dsim, 1);
+
+ /* enable DSI master block */
+ s5p_dsim_enable_dsi_master(dsim, 1);
+
+ dev_dbg(dsim->dev, "%s\n", __func__);
+
+ return 0;
+}
+
+int s5p_dsim_mipi_power(struct dsim_global *dsim, void *p_mipi_1_1v,
+ void *p_mipi_1_8v, int enable)
+{
+ struct regulator *r_mipi_1_1v = NULL, *r_mipi_1_8v = NULL;
+ int ret = -1;
+
+ r_mipi_1_1v = (struct regulator *) p_mipi_1_1v;
+ r_mipi_1_8v = (struct regulator *) p_mipi_1_8v;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (IS_ERR(r_mipi_1_1v) || IS_ERR(r_mipi_1_8v)) {
+ dev_err(dsim->dev, "r_mipi_1_1v or r_mipi_1_8v is NULL.\n");
+ return -EINVAL;
+ }
+
+ if (enable) {
+ if (r_mipi_1_1v)
+ ret = regulator_enable(r_mipi_1_1v);
+
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to enable regulator mipi_1_1v.\n");
+ return ret;
+ }
+
+ if (r_mipi_1_8v)
+ ret = regulator_enable(r_mipi_1_8v);
+
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to enable regulator mipi_1_8v.\n");
+ return ret;
+ }
+ } else {
+ if (r_mipi_1_1v)
+ ret = regulator_force_disable(r_mipi_1_1v);
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to disable regulator mipi_1_1v.\n");
+ return ret;
+ }
+
+ if (r_mipi_1_8v)
+ ret = regulator_force_disable(r_mipi_1_8v);
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to disable regulator mipi_1_8v.\n");
+ return ret;
+ }
+ }
+
+ return ret;
+}
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 3d94a14..c916ac1 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1930,7 +1930,7 @@ config FB_TMIO_ACCELL
config FB_S3C
tristate "Samsung S3C framebuffer support"
- depends on FB && ARCH_S3C64XX
+ depends on FB && (ARCH_S3C64XX || ARCH_S5PV210)
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -1975,6 +1975,13 @@ config FB_S3C2410_DEBUG
Turn on debugging messages. Note that you can set/unset at run time
through sysfs
+config S5P_MIPI_DSI
+ tristate "Samsung SoC MIPI-DSI support."
+ depends on FB_S3C && ARCH_S5PV210
+ default n
+ ---help---
+ This enables support for MIPI-DSI device.
+
config FB_NUC900
bool "NUC900 LCD framebuffer support"
depends on FB && ARCH_W90X900
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index ddc2af2..d841433 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -115,6 +115,8 @@ obj-$(CONFIG_FB_SH7760) += sh7760fb.o
obj-$(CONFIG_FB_IMX) += imxfb.o
obj-$(CONFIG_FB_S3C) += s3c-fb.o
obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o
+obj-$(CONFIG_S5P_MIPI_DSI) += s5p-dsim.o s5p_dsim_common.o \
+ s5p_dsim_lowlevel.o
obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o
obj-$(CONFIG_FB_COBALT) += cobalt_lcdfb.o
obj-$(CONFIG_FB_PNX4008_DUM) += pnx4008/
diff --git a/drivers/video/s5p-dsim.c b/drivers/video/s5p-dsim.c
new file mode 100644
index 0000000..96893bc
--- /dev/null
+++ b/drivers/video/s5p-dsim.c
@@ -0,0 +1,483 @@
+/* linux/drivers/video/samsung/s5p-dsim.c
+ *
+ * Samsung MIPI-DSIM driver.
+ *
+ * InKi Dae, <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/ctype.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/memory.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/kthread.h>
+#include <linux/regulator/consumer.h>
+#include <linux/notifier.h>
+
+#include <plat/fb.h>
+#include <plat/regs-dsim.h>
+#include <plat/dsim.h>
+#include <plat/mipi_ddi.h>
+
+#include <mach/map.h>
+
+#include "s5p_dsim_common.h"
+
+struct mipi_lcd_info {
+ struct list_head list;
+ struct mipi_lcd_driver *mipi_drv;
+};
+
+static LIST_HEAD(lcd_info_list);
+static DEFINE_MUTEX(mipi_lock);
+
+struct dsim_global dsim;
+
+struct s5p_platform_dsim *to_dsim_plat(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ return (struct s5p_platform_dsim *)pdev->dev.platform_data;
+}
+
+/*
+ * notifier callback function for fb_blank
+ * - this function would be called by device specific fb_blank.
+ */
+static int s5p_dsim_notifier_callback(struct notifier_block *self,
+ unsigned long event, void *data)
+{
+ pm_message_t pm;
+
+ pm.event = 0;
+
+ switch (event) {
+ case FB_BLANK_UNBLANK:
+ case FB_BLANK_NORMAL:
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
+ (void *) dsim.r_mipi_1_8v, 1);
+
+ clk_enable(dsim.clock);
+
+ if (dsim.mipi_drv->resume)
+ dsim.mipi_drv->resume(dsim.dev);
+
+ s5p_dsim_init_dsim(&dsim);
+ s5p_dsim_init_link(&dsim);
+
+ s5p_dsim_set_hs_enable(&dsim);
+ s5p_dsim_set_data_transfer_mode(&dsim,
+ DSIM_TRANSFER_BYCPU, 1);
+
+ /* it needs delay for stabilization */
+ mdelay(dsim.pd->delay_for_stabilization);
+
+ if (dsim.mipi_drv->init)
+ dsim.mipi_drv->init(dsim.dev);
+ else
+ dev_warn(dsim.dev, "init func is null.\n");
+
+ s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
+
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
+ dsim.mipi_ddi_pd->resume_complete = 1;
+
+ dev_dbg(dsim.dev, "FB_BLANK_NORMAL or UNBLANK.\n");
+
+ break;
+ case FB_BLANK_POWERDOWN:
+ dsim.mipi_ddi_pd->resume_complete = 0;
+
+ if (dsim.mipi_drv->suspend)
+ dsim.mipi_drv->suspend(dsim.dev, pm);
+
+ clk_disable(dsim.clock);
+
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
+ (void *) dsim.r_mipi_1_8v, 0);
+
+ dev_dbg(dsim.dev, "FB_BLANK_POWERDOWN.\n");
+ break;
+ default:
+ dev_warn(dsim.dev, "unknown FB_BLANK command.\n");
+ break;
+ }
+
+ return 0;
+}
+
+static int s5p_dsim_register_notif(struct device *dev)
+{
+ memset(&dsim.s3cfb_notif, 0, sizeof(struct notifier_block));
+ dsim.s3cfb_notif.notifier_call = s5p_dsim_notifier_callback;
+
+ return 0/*s3cfb_register_client(&dsim.s3cfb_notif)*/;
+}
+
+static irqreturn_t s5p_dsim_interrupt_handler(int irq, void *dev_id)
+{
+ disable_irq(irq);
+
+ /* additional work. */
+
+ enable_irq(irq);
+
+ return IRQ_HANDLED;
+}
+
+int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv)
+{
+ struct mipi_lcd_info *lcd_info = NULL;
+
+ lcd_info = kmalloc(sizeof(struct mipi_lcd_info), GFP_KERNEL);
+ if (lcd_info == NULL)
+ return -ENOMEM;
+
+ lcd_info->mipi_drv = kmalloc(sizeof(struct mipi_lcd_driver),
+ GFP_KERNEL);
+ if (lcd_info->mipi_drv == NULL)
+ return -ENOMEM;
+
+
+ memcpy(lcd_info->mipi_drv, lcd_drv, sizeof(struct mipi_lcd_driver));
+
+ mutex_lock(&mipi_lock);
+ list_add_tail(&lcd_info->list, &lcd_info_list);
+ mutex_unlock(&mipi_lock);
+
+ dev_dbg(dsim.dev, "registered panel driver(%s) to mipi-dsi driver.\n",
+ lcd_drv->name);
+
+ return 0;
+}
+
+/*
+ * This function is wrapper for changing transfer mode.
+ * It is used to in panel driver before and after changing gamma value.
+ */
+static int s5p_dsim_change_transfer_mode(int mode)
+{
+ if (mode < 0 || mode > 1) {
+ dev_err(dsim.dev, "mode range should be 0 or 1.\n");
+ return -EFAULT;
+ }
+
+ if (mode == 0)
+ s5p_dsim_set_data_transfer_mode(&dsim,
+ DSIM_TRANSFER_BYCPU, mode);
+ else
+ s5p_dsim_set_data_transfer_mode(&dsim,
+ DSIM_TRANSFER_BYLCDC, mode);
+
+ return 0;
+}
+
+struct mipi_lcd_driver *scan_mipi_driver(const char *name)
+{
+ struct mipi_lcd_info *lcd_info;
+ struct mipi_lcd_driver *mipi_drv = NULL;
+
+ mutex_lock(&mipi_lock);
+
+ dev_dbg(dsim.dev, "find lcd panel driver(%s).\n",
+ name);
+
+ list_for_each_entry(lcd_info, &lcd_info_list, list) {
+ mipi_drv = lcd_info->mipi_drv;
+
+ if ((strcmp(mipi_drv->name, name)) == 0) {
+ mutex_unlock(&mipi_lock);
+ dev_dbg(dsim.dev, "found!!!(%s).\n", mipi_drv->name);
+ return mipi_drv;
+ }
+ }
+
+ dev_warn(dsim.dev, "failed to find lcd panel driver(%s).\n",
+ name);
+
+ mutex_unlock(&mipi_lock);
+
+ return NULL;
+}
+
+static int s5p_dsim_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ int ret = -1;
+
+ dsim.pd = to_dsim_plat(&pdev->dev);
+ dsim.dev = &pdev->dev;
+
+ /* set dsim config data, dsim lcd config data and lcd panel data. */
+ dsim.dsim_info = dsim.pd->dsim_info;
+ dsim.dsim_lcd_info = dsim.pd->dsim_lcd_info;
+ dsim.lcd_panel_info =
+ (struct fb_videomode *) dsim.dsim_lcd_info->lcd_panel_info;
+ dsim.mipi_ddi_pd =
+ (struct mipi_ddi_platform_data *)
+ dsim.dsim_lcd_info->mipi_ddi_pd;
+
+ dsim.mipi_ddi_pd->resume_complete = 0;
+
+ dsim.r_mipi_1_1v = regulator_get(&pdev->dev, "VMIPI_1.1V");
+ if (IS_ERR(dsim.r_mipi_1_1v)) {
+ dev_err(&pdev->dev, "failed to get regulator VMIPI_1.1V.\n");
+ goto regulator_get_err;
+ }
+
+ dsim.r_mipi_1_8v = regulator_get(&pdev->dev, "VMIPI_1.8V");
+ if (IS_ERR(dsim.r_mipi_1_8v)) {
+ dev_err(&pdev->dev, "failed to get regulator VMIPI_1.8V.\n");
+ goto regulator_get_err;
+ }
+
+ /* clock */
+ dsim.clock = clk_get(&pdev->dev, dsim.pd->clk_name);
+ if (IS_ERR(dsim.clock)) {
+ dev_err(&pdev->dev, "failed to get dsim clock source\n");
+ return -EINVAL;
+ }
+
+ clk_enable(dsim.clock);
+
+ /* io memory */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to get io memory region\n");
+ ret = -EINVAL;
+ goto err_clk_disable;
+ }
+
+ /* request mem region */
+ res = request_mem_region(res->start,
+ res->end - res->start + 1, pdev->name);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to request io memory region\n");
+ ret = -EINVAL;
+ goto err_clk_disable;
+ }
+
+ /* ioremap for register block */
+ dsim.reg_base = (unsigned int) ioremap(res->start,
+ res->end - res->start + 1);
+ if (!dsim.reg_base) {
+ dev_err(&pdev->dev, "failed to remap io region\n");
+ ret = -EINVAL;
+ goto err_clk_disable;
+ }
+
+ /* it is used for MIPI-DSI based lcd panel driver. */
+ dsim.mipi_ddi_pd->dsim_data = (void *)&dsim;
+
+ /*
+ * it uses frame done interrupt handler
+ * only in case of MIPI Video mode.
+ */
+ if (dsim.dsim_lcd_info->e_interface == DSIM_VIDEO) {
+ dsim.irq = platform_get_irq(pdev, 0);
+ if (request_irq(dsim.irq, s5p_dsim_interrupt_handler,
+ IRQF_TRIGGER_RISING, "mipi-dsi", &dsim)) {
+ dev_err(&pdev->dev, "request_irq failed.\n");
+ goto err_trigger_irq;
+ }
+ }
+
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
+ (void *) dsim.r_mipi_1_8v, 1);
+ else {
+ dev_err(&pdev->dev, "mipi_power is NULL.\n");
+ goto mipi_power_err;
+ }
+
+ /* find lcd panel driver registered to mipi-dsi driver. */
+ dsim.mipi_drv = scan_mipi_driver(dsim.pd->lcd_panel_name);
+ if (dsim.mipi_drv == NULL) {
+ dev_err(&pdev->dev, "mipi_drv is NULL.\n");
+ goto mipi_drv_err;
+ }
+
+ /* register callback functions that lcd panel driver needs. */
+ dsim.mipi_ddi_pd->cmd_write = s5p_dsim_wr_data;
+ dsim.mipi_ddi_pd->cmd_read = NULL;
+ dsim.mipi_ddi_pd->get_dsim_frame_done =
+ s5p_dsim_get_frame_done_status;
+ dsim.mipi_ddi_pd->clear_dsim_frame_done = s5p_dsim_clear_frame_done;
+ dsim.mipi_ddi_pd->change_dsim_transfer_mode =
+ s5p_dsim_change_transfer_mode;
+ dsim.mipi_ddi_pd->get_fb_frame_done = dsim.pd->get_fb_frame_done;
+ dsim.mipi_ddi_pd->trigger = dsim.pd->trigger;
+
+ /* set lcd panel driver link */
+ ret = dsim.mipi_drv->set_link(dsim.mipi_ddi_pd);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to set link.\n");
+ goto mipi_drv_err;
+ }
+
+ dsim.mipi_drv->probe(&pdev->dev);
+
+ s5p_dsim_init_dsim(&dsim);
+ s5p_dsim_init_link(&dsim);
+
+ s5p_dsim_set_hs_enable(&dsim);
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
+
+ /* it needs delay for stabilization */
+ mdelay(dsim.pd->delay_for_stabilization);
+
+ /* initialize lcd panel */
+ if (dsim.mipi_drv->init)
+ dsim.mipi_drv->init(&pdev->dev);
+ else
+ dev_warn(&pdev->dev, "init func is null.\n");
+
+ if (dsim.mipi_drv->display_on)
+ dsim.mipi_drv->display_on(&pdev->dev);
+ else
+ dev_warn(&pdev->dev, "display_on func is null.\n");
+
+ s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
+
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
+
+ s5p_dsim_register_notif(&pdev->dev);
+
+ /* in case of command mode, trigger. */
+ if (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) {
+ if (dsim.pd->trigger)
+ dsim.pd->trigger(registered_fb[0]);
+ else
+ dev_warn(&pdev->dev, "trigger is null.\n");
+ }
+
+ dev_info(&pdev->dev, "mipi-dsi driver(%s mode) has been probed.\n",
+ (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) ?
+ "CPU" : "RGB");
+
+ return 0;
+
+err_trigger_irq:
+mipi_drv_err:
+ dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
+ (void *) dsim.r_mipi_1_8v, 0);
+
+mipi_power_err:
+ iounmap((void __iomem *) dsim.reg_base);
+
+err_clk_disable:
+ clk_disable(dsim.clock);
+
+regulator_get_err:
+
+ return ret;
+
+}
+
+static int s5p_dsim_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+#ifdef CONFIG_PM
+int s5p_dsim_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ dsim.mipi_ddi_pd->resume_complete = 0;
+
+ if (dsim.mipi_drv->suspend)
+ dsim.mipi_drv->suspend(&pdev->dev, state);
+
+ clk_disable(dsim.clock);
+
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
+ (void *) dsim.r_mipi_1_8v, 0);
+
+ return 0;
+}
+
+int s5p_dsim_resume(struct platform_device *pdev)
+{
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
+ (void *) dsim.r_mipi_1_8v, 1);
+
+ clk_enable(dsim.clock);
+
+ if (dsim.mipi_drv->resume)
+ dsim.mipi_drv->resume(&pdev->dev);
+
+ s5p_dsim_init_dsim(&dsim);
+ s5p_dsim_init_link(&dsim);
+
+ s5p_dsim_set_hs_enable(&dsim);
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
+
+ /* it needs delay for stabilization */
+ mdelay(dsim.pd->delay_for_stabilization);
+
+ /* initialize lcd panel */
+ if (dsim.mipi_drv->init)
+ dsim.mipi_drv->init(&pdev->dev);
+ else
+ dev_warn(&pdev->dev, "init func is null.\n");
+
+ s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
+
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
+
+ dsim.mipi_ddi_pd->resume_complete = 1;
+
+ return 0;
+}
+#else
+#define s5p_dsim_suspend NULL
+#define s5p_dsim_resume NULL
+#endif
+
+static struct platform_driver s5p_dsim_driver = {
+ .probe = s5p_dsim_probe,
+ .remove = s5p_dsim_remove,
+ .suspend = s5p_dsim_suspend,
+ .resume = s5p_dsim_resume,
+ .driver = {
+ .name = "s5p-dsim",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int s5p_dsim_register(void)
+{
+ platform_driver_register(&s5p_dsim_driver);
+
+ return 0;
+}
+
+static void s5p_dsim_unregister(void)
+{
+ platform_driver_unregister(&s5p_dsim_driver);
+}
+
+module_init(s5p_dsim_register);
+module_exit(s5p_dsim_unregister);
+
+MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
+MODULE_DESCRIPTION("Samusung MIPI-DSIM driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/s5p_dsim_common.c b/drivers/video/s5p_dsim_common.c
new file mode 100644
index 0000000..77724dc
--- /dev/null
+++ b/drivers/video/s5p_dsim_common.c
@@ -0,0 +1,753 @@
+/* linux/drivers/video/samsung/s5p_dsim_common.c
+ *
+ * Samsung MIPI-DSIM common driver.
+ *
+ * InKi Dae, <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/ctype.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/memory.h>
+#include <linux/delay.h>
+#include <linux/kthread.h>
+
+#include <plat/fb.h>
+#include <plat/regs-dsim.h>
+
+#include <mach/map.h>
+#include <plat/dsim.h>
+#include <plat/mipi_ddi.h>
+
+#include "s5p_dsim_lowlevel.h"
+
+static void s5p_dsim_long_data_wr(struct dsim_global *dsim, unsigned int data0,
+ unsigned int data1)
+{
+ unsigned int data_cnt = 0, payload = 0;
+
+ /* in case that data count is more then 4 */
+ for (data_cnt = 0; data_cnt < data1; data_cnt += 4) {
+ /*
+ * after sending 4bytes per one time,
+ * send remainder data less then 4.
+ */
+ if ((data1 - data_cnt) < 4) {
+ if ((data1 - data_cnt) == 3) {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
+ (*(u8 *)(data0 + (data_cnt + 2))) << 16;
+ dev_dbg(dsim->dev, "count = 3 payload = %x, %x %x %x\n",
+ payload, *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)));
+ } else if ((data1 - data_cnt) == 2) {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8;
+ dev_dbg(dsim->dev,
+ "count = 2 payload = %x, %x %x\n", payload,
+ *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)));
+ } else if ((data1 - data_cnt) == 1) {
+ payload = *(u8 *)(data0 + data_cnt);
+ }
+
+ s5p_dsim_wr_tx_data(dsim, payload);
+ /* send 4bytes per one time. */
+ } else {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
+ (*(u8 *)(data0 + (data_cnt + 2))) << 16 |
+ (*(u8 *)(data0 + (data_cnt + 3))) << 24;
+
+ dev_dbg(dsim->dev,
+ "count = 4 payload = %x, %x %x %x %x\n",
+ payload, *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)),
+ *(u8 *)(data0 + (data_cnt + 3)));
+
+ s5p_dsim_wr_tx_data(dsim, payload);
+ }
+ }
+}
+
+int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1)
+{
+ struct dsim_global *dsim = NULL;
+ unsigned int timeout = 5000 * 2;
+ unsigned long delay_val, udelay;
+ unsigned char check_rx_ack = 0;
+
+ dsim = (struct dsim_global *)dsim_data;
+
+ if (dsim == NULL) {
+ dev_err(dsim->dev, "dsim_data is NULL.\n");
+ return -EFAULT;
+ }
+
+
+ if (dsim->state == DSIM_STATE_ULPS) {
+ dev_err(dsim->dev, "state is ULPS.\n");
+
+ return -EINVAL;
+ }
+
+ delay_val = 1000000 / dsim->dsim_info->esc_clk;
+ udelay = 10 * delay_val;
+
+ mdelay(udelay);
+
+ /* only if transfer mode is LPDT, wait SFR becomes empty. */
+ if (dsim->state == DSIM_STATE_STOP) {
+ while (!(s5p_dsim_get_fifo_state(dsim) &
+ SFR_HEADER_EMPTY)) {
+ if ((timeout--) > 0)
+ mdelay(1);
+ else {
+ dev_err(dsim->dev,
+ "SRF header fifo is not empty.\n");
+ return -EINVAL;
+ }
+ }
+ }
+
+ switch (data_id) {
+ /* short packet types of packet types for command. */
+ case GEN_SHORT_WR_NO_PARA:
+ case GEN_SHORT_WR_1_PARA:
+ case GEN_SHORT_WR_2_PARA:
+ case DCS_WR_NO_PARA:
+ case DCS_WR_1_PARA:
+ case SET_MAX_RTN_PKT_SIZE:
+ s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
+ (unsigned char) data0, (unsigned char) data1);
+ if (check_rx_ack)
+ /* process response func should be implemented */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* general command */
+ case CMD_OFF:
+ case CMD_ON:
+ case SHUT_DOWN:
+ case TURN_ON:
+ s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
+ (unsigned char) data0, (unsigned char) data1);
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* packet types for video data */
+ case VSYNC_START:
+ case VSYNC_END:
+ case HSYNC_START:
+ case HSYNC_END:
+ case EOT_PKT:
+ return 0;
+
+ /* short and response packet types for command */
+ case GEN_RD_1_PARA:
+ case GEN_RD_2_PARA:
+ case GEN_RD_NO_PARA:
+ case DCS_RD_NO_PARA:
+ s5p_dsim_clear_interrupt(dsim, 0xffffffff);
+ s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
+ (unsigned char) data0, (unsigned char) data1);
+ /* process response func should be implemented. */
+ return 0;
+
+ /* long packet type and null packet */
+ case NULL_PKT:
+ case BLANKING_PKT:
+ return 0;
+ case GEN_LONG_WR:
+ case DCS_LONG_WR:
+ {
+ unsigned int size, data_cnt = 0, payload = 0;
+
+ size = data1 * 4;
+
+ /* if data count is less then 4, then send 3bytes data. */
+ if (data1 < 4) {
+ payload = *(u8 *)(data0) |
+ *(u8 *)(data0 + 1) << 8 |
+ *(u8 *)(data0 + 2) << 16;
+
+ s5p_dsim_wr_tx_data(dsim, payload);
+
+ dev_dbg(dsim->dev, "count = %d payload = %x,%x %x %x\n",
+ data1, payload,
+ *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)));
+ /* in case that data count is more then 4 */
+ } else
+ s5p_dsim_long_data_wr(dsim, data0, data1);
+
+ /* put data into header fifo */
+ s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
+ (unsigned char) (((unsigned short) data1) & 0xff),
+ (unsigned char) ((((unsigned short) data1) & 0xff00) >>
+ 8));
+
+ }
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* packet typo for video data */
+ case RGB565_PACKED:
+ case RGB666_PACKED:
+ case RGB666_LOOSLY:
+ case RGB888_PACKED:
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+ default:
+ dev_warn(dsim->dev,
+ "data id %x is not supported current DSI spec.\n",
+ data_id);
+
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int s5p_dsim_init_header_fifo(struct dsim_global *dsim)
+{
+ unsigned int cnt;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ for (cnt = 0; cnt < DSIM_HEADER_FIFO_SZ; cnt++)
+ dsim->header_fifo_index[cnt] = -1;
+ return 0;
+}
+
+int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned char enable)
+{
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (enable) {
+ int sw_timeout = 1000;
+ s5p_dsim_clear_interrupt(dsim, DSIM_PLL_STABLE);
+ s5p_dsim_enable_pll(dsim, 1);
+ while (1) {
+ sw_timeout--;
+ if (s5p_dsim_is_pll_stable(dsim))
+ return 0;
+ if (sw_timeout == 0)
+ return -EINVAL;
+ }
+ } else
+ s5p_dsim_enable_pll(dsim, 0);
+
+ return 0;
+}
+
+unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
+ unsigned char pre_divider, unsigned short main_divider,
+ unsigned char scaler)
+{
+ unsigned long dfin_pll, dfvco, dpll_out;
+ unsigned char freq_band;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return 0;
+ }
+
+ dfin_pll = (MIPI_FIN / pre_divider);
+
+ if (dfin_pll < 6 * 1000 * 1000 || dfin_pll > 12 * 1000 * 1000) {
+ dev_warn(dsim->dev, "warning!!\n");
+ dev_warn(dsim->dev, "fin_pll range is 6MHz ~ 12MHz\n");
+ dev_warn(dsim->dev, "fin_pll of mipi dphy pll is %luMHz\n",
+ (dfin_pll / 1000000));
+
+ s5p_dsim_enable_afc(dsim, 0, 0);
+ } else {
+ if (dfin_pll < 7 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x1);
+ else if (dfin_pll < 8 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x0);
+ else if (dfin_pll < 9 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x3);
+ else if (dfin_pll < 10 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x2);
+ else if (dfin_pll < 11 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x5);
+ else
+ s5p_dsim_enable_afc(dsim, 1, 0x4);
+ }
+
+ dfvco = dfin_pll * main_divider;
+ dev_dbg(dsim->dev, "dfvco = %lu, dfin_pll = %lu, main_divider = %d\n",
+ dfvco, dfin_pll, main_divider);
+ if (dfvco < 500000000 || dfvco > 1000000000) {
+ dev_warn(dsim->dev, "Caution!!\n");
+ dev_warn(dsim->dev, "fvco range is 500MHz ~ 1000MHz\n");
+ dev_warn(dsim->dev, "fvco of mipi dphy pll is %luMHz\n",
+ (dfvco / 1000000));
+ }
+
+ dpll_out = dfvco / (1 << scaler);
+ dev_dbg(dsim->dev, "dpll_out = %lu, dfvco = %lu, scaler = %d\n",
+ dpll_out, dfvco, scaler);
+ if (dpll_out < 100 * 1000000)
+ freq_band = 0x0;
+ else if (dpll_out < 120 * 1000000)
+ freq_band = 0x1;
+ else if (dpll_out < 170 * 1000000)
+ freq_band = 0x2;
+ else if (dpll_out < 220 * 1000000)
+ freq_band = 0x3;
+ else if (dpll_out < 270 * 1000000)
+ freq_band = 0x4;
+ else if (dpll_out < 320 * 1000000)
+ freq_band = 0x5;
+ else if (dpll_out < 390 * 1000000)
+ freq_band = 0x6;
+ else if (dpll_out < 450 * 1000000)
+ freq_band = 0x7;
+ else if (dpll_out < 510 * 1000000)
+ freq_band = 0x8;
+ else if (dpll_out < 560 * 1000000)
+ freq_band = 0x9;
+ else if (dpll_out < 640 * 1000000)
+ freq_band = 0xa;
+ else if (dpll_out < 690 * 1000000)
+ freq_band = 0xb;
+ else if (dpll_out < 770 * 1000000)
+ freq_band = 0xc;
+ else if (dpll_out < 870 * 1000000)
+ freq_band = 0xd;
+ else if (dpll_out < 950 * 1000000)
+ freq_band = 0xe;
+ else
+ freq_band = 0xf;
+
+ dev_dbg(dsim->dev, "freq_band = %d\n", freq_band);
+
+ s5p_dsim_pll_freq(dsim, pre_divider, main_divider, scaler);
+
+ {
+ unsigned char temp0, temp1;
+
+ temp0 = 0;
+ s5p_dsim_hs_zero_ctrl(dsim, temp0);
+ temp1 = 0;
+ s5p_dsim_prep_ctrl(dsim, temp1);
+ }
+
+ /* Freq Band */
+ s5p_dsim_pll_freq_band(dsim, freq_band);
+
+ /* Stable time */
+ s5p_dsim_pll_stable_time(dsim,
+ dsim->dsim_info->pll_stable_time);
+
+ /* Enable PLL */
+ dev_dbg(dsim->dev, "FOUT of mipi dphy pll is %luMHz\n",
+ (dpll_out / 1000000));
+
+ return dpll_out;
+}
+
+int s5p_dsim_set_clock(struct dsim_global *dsim,
+ unsigned char byte_clk_sel, unsigned char enable)
+{
+ unsigned int esc_div;
+ unsigned long esc_clk_error_rate;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EINVAL;
+ }
+
+ if (enable) {
+ dsim->e_clk_src = byte_clk_sel;
+
+ /* Escape mode clock and byte clock source */
+ s5p_dsim_set_byte_clock_src(dsim, byte_clk_sel);
+
+ /* DPHY, DSIM Link : D-PHY clock out */
+ if (byte_clk_sel == DSIM_PLL_OUT_DIV8) {
+ dsim->hs_clk = s5p_dsim_change_pll(dsim,
+ dsim->dsim_info->p, dsim->dsim_info->m,
+ dsim->dsim_info->s);
+ if (dsim->hs_clk == 0) {
+ dev_err(dsim->dev,
+ "failed to get hs clock.\n");
+ return -EINVAL;
+ }
+
+ dsim->byte_clk = dsim->hs_clk / 8;
+ s5p_dsim_enable_pll_bypass(dsim, 0);
+ s5p_dsim_pll_on(dsim, 1);
+ /* DPHY : D-PHY clock out, DSIM link : external clock out */
+ } else if (byte_clk_sel == DSIM_EXT_CLK_DIV8)
+ dev_warn(dsim->dev,
+ "this project is not support \
+ external clock source for MIPI DSIM\n");
+ else if (byte_clk_sel == DSIM_EXT_CLK_BYPASS)
+ dev_warn(dsim->dev,
+ "this project is not support \
+ external clock source for MIPI DSIM\n");
+
+ /* escape clock divider */
+ esc_div = dsim->byte_clk / (dsim->dsim_info->esc_clk);
+ dev_dbg(dsim->dev,
+ "esc_div = %d, byte_clk = %lu, esc_clk = %lu\n",
+ esc_div, dsim->byte_clk, dsim->dsim_info->esc_clk);
+ if ((dsim->byte_clk / esc_div) >= 20000000 ||
+ (dsim->byte_clk / esc_div) > dsim->dsim_info->esc_clk)
+ esc_div += 1;
+
+ dsim->escape_clk = dsim->byte_clk / esc_div;
+ dev_dbg(dsim->dev,
+ "escape_clk = %lu, byte_clk = %lu, esc_div = %d\n",
+ dsim->escape_clk, dsim->byte_clk, esc_div);
+
+ /*
+ * enable escclk on lane
+ *
+ * in case of evt0, DSIM_TRUE is enable and
+ * DSIM_FALSE is enable for evt1.
+ */
+ if (dsim->pd->platform_rev == 1)
+ s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
+ else
+ s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
+
+ /* enable byte clk and escape clock */
+ s5p_dsim_set_esc_clk_prs(dsim, 1, esc_div);
+ /* escape clock on lane */
+ s5p_dsim_enable_esc_clk_on_lane(dsim,
+ (DSIM_LANE_CLOCK | dsim->data_lane), 1);
+
+ dev_dbg(dsim->dev, "byte clock is %luMHz\n",
+ (dsim->byte_clk / 1000000));
+ dev_dbg(dsim->dev, "escape clock that user's need is %lu\n",
+ (dsim->dsim_info->esc_clk / 1000000));
+ dev_dbg(dsim->dev, "escape clock divider is %x\n", esc_div);
+ dev_dbg(dsim->dev, "escape clock is %luMHz\n",
+ ((dsim->byte_clk / esc_div) / 1000000));
+
+ if ((dsim->byte_clk / esc_div) > dsim->escape_clk) {
+ esc_clk_error_rate = dsim->escape_clk /
+ (dsim->byte_clk / esc_div);
+ dev_warn(dsim->dev, "error rate is %lu over.\n",
+ (esc_clk_error_rate / 100));
+ } else if ((dsim->byte_clk / esc_div) < (dsim->escape_clk)) {
+ esc_clk_error_rate = (dsim->byte_clk / esc_div) /
+ dsim->escape_clk;
+ dev_warn(dsim->dev, "error rate is %lu under.\n",
+ (esc_clk_error_rate / 100));
+ }
+ } else {
+ s5p_dsim_enable_esc_clk_on_lane(dsim,
+ (DSIM_LANE_CLOCK | dsim->data_lane), 0);
+ s5p_dsim_set_esc_clk_prs(dsim, 0, 0);
+
+ /*
+ * in case of evt0, DSIM_FALSE is disable and
+ * DSIM_TRUE is disable for evt1.
+ */
+ if (dsim->pd->platform_rev == 1)
+ s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
+ else
+ s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
+
+ if (byte_clk_sel == DSIM_PLL_OUT_DIV8)
+ s5p_dsim_pll_on(dsim, 0);
+ }
+
+ return 0;
+}
+
+int s5p_dsim_init_dsim(struct dsim_global *dsim)
+{
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (dsim->pd->init_d_phy)
+ dsim->pd->init_d_phy(dsim);
+
+ dsim->state = DSIM_STATE_RESET;
+
+ switch (dsim->dsim_info->e_no_data_lane) {
+ case DSIM_DATA_LANE_1:
+ dsim->data_lane = DSIM_LANE_DATA0;
+ break;
+ case DSIM_DATA_LANE_2:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1;
+ break;
+ case DSIM_DATA_LANE_3:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
+ DSIM_LANE_DATA2;
+ break;
+ case DSIM_DATA_LANE_4:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
+ DSIM_LANE_DATA2 | DSIM_LANE_DATA3;
+ break;
+ default:
+ dev_info(dsim->dev, "data lane is invalid.\n");
+ return -EINVAL;
+ };
+
+ s5p_dsim_init_header_fifo(dsim);
+ s5p_dsim_sw_reset(dsim);
+ s5p_dsim_dp_dn_swap(dsim, dsim->dsim_info->e_lane_swap);
+
+ return 0;
+}
+
+int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim, int enable)
+{
+ /* enable only frame done interrupt */
+ s5p_dsim_set_interrupt_mask(dsim, INTMSK_FRAME_DONE, enable);
+
+ return 0;
+}
+
+int s5p_dsim_set_display_mode(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
+{
+ struct fb_videomode *mlcd_video = NULL;
+ struct fb_cmdmode *mlcd_command = NULL;
+ struct s3c_fb_pd_win *pd;
+ unsigned int width = 0, height = 0;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ pd = (struct s3c_fb_pd_win *)main_lcd->lcd_panel_info;
+
+ /* in case of VIDEO MODE (RGB INTERFACE) */
+ if (dsim->dsim_lcd_info->e_interface == (u32) DSIM_VIDEO) {
+ mlcd_video = (struct fb_videomode *)&pd->win_mode;
+ width = mlcd_video->xres;
+ height = mlcd_video->yres;
+
+ if (dsim->dsim_info->auto_vertical_cnt == DSIM_FALSE) {
+ s5p_dsim_set_main_disp_vporch(dsim,
+ mlcd_video->upper_margin,
+ mlcd_video->lower_margin, 0);
+ s5p_dsim_set_main_disp_hporch(dsim,
+ mlcd_video->left_margin,
+ mlcd_video->right_margin);
+ s5p_dsim_set_main_disp_sync_area(dsim,
+ mlcd_video->vsync_len,
+ mlcd_video->hsync_len);
+ }
+ } else { /* in case of COMMAND MODE (CPU or I80 INTERFACE) */
+ mlcd_command = (struct fb_cmdmode *)&pd->cmd_mode;
+ width = mlcd_command->xres;
+ height = mlcd_command->yres;
+ }
+
+ s5p_dsim_set_main_disp_resol(dsim, height, width);
+
+ if (sub_lcd != NULL)
+ dev_warn(dsim->dev, "sub lcd isn't supported yet.\n");
+
+ s5p_dsim_display_config(dsim, dsim->dsim_lcd_info, NULL);
+
+ return 0;
+}
+
+int s5p_dsim_init_link(struct dsim_global *dsim)
+{
+ unsigned int time_out = 100;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ switch (dsim->state) {
+ case DSIM_STATE_RESET:
+ s5p_dsim_sw_reset(dsim);
+ case DSIM_STATE_INIT:
+ s5p_dsim_init_fifo_pointer(dsim, 0x1f);
+
+ /* dsi configuration */
+ s5p_dsim_init_config(dsim, dsim->dsim_lcd_info,
+ NULL, dsim->dsim_info);
+ s5p_dsim_enable_lane(dsim, DSIM_LANE_CLOCK, 1);
+ s5p_dsim_enable_lane(dsim, dsim->data_lane, 1);
+
+ /* set clock configuration */
+ s5p_dsim_set_clock(dsim, dsim->dsim_info->e_byte_clk,
+ 1);
+
+ /* check clock and data lane state is stop state */
+ while (!(s5p_dsim_is_lane_state(dsim, DSIM_LANE_CLOCK)
+ == DSIM_LANE_STATE_STOP) &&
+ !(s5p_dsim_is_lane_state(dsim,
+ dsim->data_lane) == DSIM_LANE_STATE_STOP)) {
+ time_out--;
+ if (time_out == 0) {
+ dev_info(dsim->dev,
+ "DSI Master is not stop state.\n");
+ dev_info(dsim->dev,
+ "Check initialization process\n");
+
+ return -EINVAL;
+ }
+ }
+
+ if (time_out != 0) {
+ dev_info(dsim->dev,
+ "initialization of DSI Master is successful\n");
+ dev_info(dsim->dev, "DSI Master state is stop state\n");
+ }
+
+ dsim->state = DSIM_STATE_STOP;
+
+ /* BTA sequence counters */
+ s5p_dsim_set_stop_state_counter(dsim,
+ dsim->dsim_info->stop_holding_cnt);
+ s5p_dsim_set_bta_timeout(dsim,
+ dsim->dsim_info->bta_timeout);
+ s5p_dsim_set_lpdr_timeout(dsim,
+ dsim->dsim_info->rx_timeout);
+
+ /* default LPDT by both cpu and lcd controller */
+ s5p_dsim_set_data_mode(dsim, DSIM_TRANSFER_BOTH,
+ DSIM_STATE_STOP);
+
+ return 0;
+ default:
+ dev_info(dsim->dev, "DSI Master is already init.\n");
+ return 0;
+ }
+
+ return 0;
+}
+
+int s5p_dsim_set_hs_enable(struct dsim_global *dsim)
+{
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (dsim->state == DSIM_STATE_STOP) {
+ if (dsim->e_clk_src != DSIM_EXT_CLK_BYPASS) {
+ dsim->state = DSIM_STATE_HSCLKEN;
+ s5p_dsim_set_data_mode(dsim,
+ DSIM_TRANSFER_BOTH, DSIM_STATE_HSCLKEN);
+ s5p_dsim_enable_hs_clock(dsim, 1);
+
+ return 0;
+ } else
+ dev_warn(dsim->dev,
+ "clock source is external bypass.\n");
+ } else
+ dev_warn(dsim->dev, "DSIM is not stop state.\n");
+
+ return 0;
+}
+
+int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
+ unsigned char data_path, unsigned char hs_enable)
+{
+ int ret = -1;
+
+ if (dsim == NULL) {
+ printk(KERN_ERR "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (hs_enable) {
+ if (dsim->state == DSIM_STATE_HSCLKEN) {
+ s5p_dsim_set_data_mode(dsim, data_path,
+ DSIM_STATE_HSCLKEN);
+ ret = 0;
+ } else {
+ dev_err(dsim->dev, "HS Clock lane is not enabled.\n");
+ ret = -EINVAL;
+ }
+ } else {
+ if (dsim->state == DSIM_STATE_INIT || dsim->state ==
+ DSIM_STATE_ULPS) {
+ dev_err(dsim->dev,
+ "DSI Master is not STOP or HSDT state.\n");
+ ret = -EINVAL;
+ } else {
+ s5p_dsim_set_data_mode(dsim, data_path,
+ DSIM_STATE_STOP);
+ ret = 0;
+ }
+ }
+
+ return ret;
+}
+
+int s5p_dsim_get_frame_done_status(void *dsim_data)
+{
+ struct dsim_global *dsim = NULL;
+
+ dsim = (struct dsim_global *)dsim_data;
+
+ if (dsim == NULL) {
+ dev_err(dsim->dev, "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ return _s5p_dsim_get_frame_done_status(dsim);
+}
+
+int s5p_dsim_clear_frame_done(void *dsim_data)
+{
+ struct dsim_global *dsim = NULL;
+
+ dsim = (struct dsim_global *)dsim_data;
+
+ if (dsim == NULL) {
+ dev_err(dsim->dev, "dsim_global pointer is NULL.\n");
+ return -EFAULT;
+ }
+
+ _s5p_dsim_clear_frame_done(dsim);
+
+ return 0;
+}
+
+MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
+MODULE_DESCRIPTION("Samusung MIPI-DSIM common driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/s5p_dsim_common.h b/drivers/video/s5p_dsim_common.h
new file mode 100644
index 0000000..deefca1
--- /dev/null
+++ b/drivers/video/s5p_dsim_common.h
@@ -0,0 +1,38 @@
+/* linux/drivers/video/samsung/s5p_dsim_common.h
+ *
+ * Header file for Samsung MIPI-DSI common driver.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _S5P_DSIM_COMMON_H
+#define _S5P_DSIM_COMMON_H
+
+extern int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+extern int s5p_dsim_init_header_fifo(struct dsim_global *dsim);
+extern int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned char enable);
+extern unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
+ unsigned char pre_divider, unsigned short main_divider,
+ unsigned char scaler);
+extern int s5p_dsim_set_clock(struct dsim_global *dsim,
+ unsigned char byte_clk_sel, unsigned char enable);
+extern int s5p_dsim_init_dsim(struct dsim_global *dsim);
+extern int s5p_dsim_set_display_mode(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd);
+extern int s5p_dsim_init_link(struct dsim_global *dsim);
+extern int s5p_dsim_set_hs_enable(struct dsim_global *dsim);
+extern int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
+ unsigned char data_path, unsigned char hs_enable);
+extern int s5p_dsim_get_frame_done_status(void *dsim_data);
+extern int s5p_dsim_clear_frame_done(void *dsim_data);
+extern int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim, int enable);
+
+extern struct fb_info *registered_fb[FB_MAX] __read_mostly;
+
+#endif /* _S5P_DSIM_COMMON_H */
diff --git a/drivers/video/s5p_dsim_lowlevel.c b/drivers/video/s5p_dsim_lowlevel.c
new file mode 100644
index 0000000..6a27395
--- /dev/null
+++ b/drivers/video/s5p_dsim_lowlevel.c
@@ -0,0 +1,562 @@
+/* linux/drivers/video/samsung/s5p-dsim.c
+ *
+ * Samsung MIPI-DSIM lowlevel driver.
+ *
+ * InKi Dae, <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <linux/delay.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/ctype.h>
+#include <linux/io.h>
+
+#include <mach/map.h>
+
+#include <plat/dsim.h>
+#include <plat/mipi_ddi.h>
+#include <plat/regs-dsim.h>
+
+void s5p_dsim_func_reset(struct dsim_global *dsim)
+{
+ unsigned int cfg = 0;
+
+ cfg = DSIM_FUNCRST;
+
+ writel(cfg, dsim->reg_base + S5P_DSIM_SWRST);
+}
+
+void s5p_dsim_sw_reset(struct dsim_global *dsim)
+{
+ unsigned int cfg = 0;
+
+ cfg = DSIM_SWRST;
+
+ writel(cfg, dsim->reg_base + S5P_DSIM_SWRST);
+}
+
+void s5p_dsim_set_interrupt_mask(struct dsim_global *dsim, unsigned int mode,
+ unsigned int mask)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTMSK);
+
+ if (mask)
+ reg |= mode;
+ else
+ reg &= ~(mode);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_INTMSK);
+}
+
+void s5p_dsim_init_fifo_pointer(struct dsim_global *dsim, unsigned char cfg)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_FIFOCTRL);
+
+ writel(reg & ~(cfg), dsim->reg_base + S5P_DSIM_FIFOCTRL);
+ mdelay(10);
+ reg |= cfg;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_FIFOCTRL);
+}
+
+/*
+ * this function set PLL P, M and S value in D-PHY
+ */
+void s5p_dsim_set_phy_tunning(struct dsim_global *dsim, unsigned int value)
+{
+ writel(DSIM_AFC_CTL(value), dsim->reg_base + S5P_DSIM_PHYACCHR);
+}
+
+void s5p_dsim_set_main_disp_resol(struct dsim_global *dsim,
+ unsigned short vert_resol, unsigned short hori_resol)
+{
+ unsigned int reg;
+
+ /* standby should be set after configuration so set to not ready*/
+ reg = (readl(dsim->reg_base + S5P_DSIM_MDRESOL)) &
+ ~(DSIM_MAIN_STAND_BY);
+ writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
+
+ reg &= ~(0x7ff << 16) & ~(0x7ff << 0);
+ reg |= DSIM_MAIN_VRESOL(vert_resol) | DSIM_MAIN_HRESOL(hori_resol);
+
+ reg |= DSIM_MAIN_STAND_BY;
+ writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
+}
+
+void s5p_dsim_set_main_disp_vporch(struct dsim_global *dsim,
+ unsigned int cmd_allow, unsigned int vfront, unsigned int vback)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_MVPORCH)) &
+ ~(DSIM_CMD_ALLOW_MASK) & ~(DSIM_STABLE_VFP_MASK) &
+ ~(DSIM_MAIN_VBP_MASK);
+
+ reg |= ((cmd_allow & 0xf) << DSIM_CMD_ALLOW_SHIFT) |
+ ((vfront & 0x7ff) << DSIM_STABLE_VFP_SHIFT) |
+ ((vback & 0x7ff) << DSIM_MAIN_VBP_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_MVPORCH);
+}
+
+void s5p_dsim_set_main_disp_hporch(struct dsim_global *dsim,
+ unsigned short front, unsigned short back)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_MHPORCH)) &
+ ~(DSIM_MAIN_HFP_MASK) & ~(DSIM_MAIN_HBP_MASK);
+
+ reg |= (front << DSIM_MAIN_HFP_SHIFT) | (back << DSIM_MAIN_HBP_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_MHPORCH);
+}
+
+void s5p_dsim_set_main_disp_sync_area(struct dsim_global *dsim,
+ unsigned short vert, unsigned short hori)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_MSYNC)) &
+ ~(DSIM_MAIN_VSA_MASK) & ~(DSIM_MAIN_HSA_MASK);
+
+ reg |= ((vert & 0x3ff) << DSIM_MAIN_VSA_SHIFT) |
+ (hori << DSIM_MAIN_HSA_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_MSYNC);
+}
+
+void s5p_dsim_set_sub_disp_resol(struct dsim_global *dsim,
+ unsigned short vert, unsigned short hori)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_SDRESOL)) &
+ ~(DSIM_SUB_STANDY_MASK);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
+
+ reg &= ~(DSIM_SUB_VRESOL_MASK) | ~(DSIM_SUB_HRESOL_MASK);
+ reg |= ((vert & 0x7ff) << DSIM_SUB_VRESOL_SHIFT) |
+ ((hori & 0x7ff) << DSIM_SUB_HRESOL_SHIFT);
+ writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
+
+ reg |= (1 << DSIM_SUB_STANDY_SHIFT);
+ writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
+}
+
+void s5p_dsim_init_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd_info,
+ struct dsim_lcd_config *sub_lcd_info, struct dsim_config *dsim_info)
+{
+ unsigned int cfg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
+ ~(1 << 28) & ~(0x1f << 20) & ~(0x3 << 5);
+
+ cfg = (dsim_info->auto_flush << 29) |
+ (dsim_info->eot_disable << 28) |
+ (dsim_info->auto_vertical_cnt << DSIM_AUTO_MODE_SHIFT) |
+ (dsim_info->hse << DSIM_HSE_MODE_SHIFT) |
+ (dsim_info->hfp << DSIM_HFP_MODE_SHIFT) |
+ (dsim_info->hbp << DSIM_HBP_MODE_SHIFT) |
+ (dsim_info->hsa << DSIM_HSA_MODE_SHIFT) |
+ (dsim_info->e_no_data_lane << DSIM_NUM_OF_DATALANE_SHIFT);
+
+ writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+void s5p_dsim_display_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
+{
+ u32 reg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
+ ~(0x3 << 26) & ~(1 << 25) & ~(0x3 << 18) & ~(0x7 << 12) &
+ ~(0x3 << 16) & ~(0x7 << 8);
+
+ if (main_lcd->e_interface == DSIM_VIDEO)
+ reg |= (1 << 25);
+ else if (main_lcd->e_interface == DSIM_COMMAND)
+ reg &= ~(1 << 25);
+ else {
+ dev_err(dsim->dev, "this ddi is not MIPI interface.\n");
+ return;
+ }
+
+ /* main lcd */
+ reg |= ((u8) (main_lcd->parameter[DSI_VIDEO_MODE_SEL]) & 0x3) << 26 |
+ ((u8) (main_lcd->parameter[DSI_VIRTUAL_CH_ID]) & 0x3) << 18 |
+ ((u8) (main_lcd->parameter[DSI_FORMAT]) & 0x7) << 12;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+void s5p_dsim_enable_lane(struct dsim_global *dsim, unsigned char lane,
+ unsigned char enable)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_CONFIG);
+
+ if (lane == DSIM_LANE_CLOCK) {
+ if (enable)
+ reg |= (1 << 0);
+ else
+ reg &= ~(1 << 0);
+ } else {
+ if (enable)
+ reg |= (lane << 1);
+ else
+ reg &= ~(lane << 1);
+ }
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+
+void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
+ unsigned char count)
+{
+ unsigned int cfg = 0;
+
+ /* get the data lane number. */
+ cfg = DSIM_NUM_OF_DATA_LANE(count);
+
+ writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+void s5p_dsim_enable_afc(struct dsim_global *dsim, unsigned char enable,
+ unsigned char afc_code)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PHYACCHR);
+
+ if (enable) {
+ reg |= (1 << 14);
+ reg &= ~(0x7 << 5);
+ reg |= (afc_code & 0x7) << 5;
+ } else
+ reg &= ~(1 << 14);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PHYACCHR);
+}
+
+void s5p_dsim_enable_pll_bypass(struct dsim_global *dsim,
+ unsigned char enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(DSIM_PLL_BYPASS_EXTERNAL);
+
+ reg |= enable << DSIM_PLL_BYPASS_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_set_pll_pms(struct dsim_global *dsim, unsigned char p,
+ unsigned short m, unsigned short s)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PLLCTRL);
+
+ reg |= ((p & 0x3f) << 13) | ((m & 0x1ff) << 4) | ((s & 0x7) << 1);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_pll_freq_band(struct dsim_global *dsim, unsigned char freq_band)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x1f << DSIM_FREQ_BAND_SHIFT);
+
+ reg |= ((freq_band & 0x1f) << DSIM_FREQ_BAND_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_pll_freq(struct dsim_global *dsim, unsigned char pre_divider,
+ unsigned short main_divider, unsigned char scaler)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x7ffff << 1);
+
+ reg |= (pre_divider & 0x3f) << 13 | (main_divider & 0x1ff) << 4 |
+ (scaler & 0x7) << 1;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_pll_stable_time(struct dsim_global *dsim,
+ unsigned int lock_time)
+{
+ writel(lock_time, dsim->reg_base + S5P_DSIM_PLLTMR);
+}
+
+void s5p_dsim_enable_pll(struct dsim_global *dsim, unsigned char enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x1 << DSIM_PLL_EN_SHIFT);
+
+ reg |= ((enable & 0x1) << DSIM_PLL_EN_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_set_byte_clock_src(struct dsim_global *dsim, unsigned char src)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(0x3 << DSIM_BYTE_CLK_SRC_SHIFT);
+
+ reg |= ((unsigned int) src) << DSIM_BYTE_CLK_SRC_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_enable_byte_clock(struct dsim_global *dsim,
+ unsigned char enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(1 << DSIM_BYTE_CLKEN_SHIFT);
+
+ reg |= enable << DSIM_BYTE_CLKEN_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_set_esc_clk_prs(struct dsim_global *dsim, unsigned char enable,
+ unsigned short prs_val)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(1 << DSIM_ESC_CLKEN_SHIFT) & ~(0xffff);
+
+ reg |= enable << DSIM_ESC_CLKEN_SHIFT;
+ if (enable)
+ reg |= prs_val;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_enable_esc_clk_on_lane(struct dsim_global *dsim,
+ unsigned char lane_sel, unsigned char enable)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_CLKCTRL);
+
+ if (enable) {
+ if (lane_sel & DSIM_LANE_CLOCK)
+ reg |= 1 << DSIM_LANE_ESC_CLKEN_SHIFT;
+ if (lane_sel & DSIM_LANE_DATA0)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1);
+ if (lane_sel & DSIM_LANE_DATA1)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2);
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3);
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4);
+ } else {
+ if (lane_sel & DSIM_LANE_CLOCK)
+ reg &= ~(1 << DSIM_LANE_ESC_CLKEN_SHIFT);
+ if (lane_sel & DSIM_LANE_DATA0)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1));
+ if (lane_sel & DSIM_LANE_DATA1)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2));
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3));
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4));
+ }
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_force_dphy_stop_state(struct dsim_global *dsim,
+ unsigned char enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_ESCMODE)) &
+ ~(0x1 << DSIM_FORCE_STOP_STATE_SHIFT);
+
+ reg |= ((enable & 0x1) << DSIM_FORCE_STOP_STATE_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_ESCMODE);
+}
+
+unsigned char s5p_dsim_is_lane_state(struct dsim_global *dsim,
+ unsigned char lane)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_STATUS);
+
+ if ((lane & DSIM_LANE_ALL) > DSIM_LANE_CLOCK) { /* all lane state */
+ if ((reg & 0x7ff) ^ (((lane & 0xf) << 4) | (1 << 9)))
+ return DSIM_LANE_STATE_ULPS;
+ else if ((reg & 0x7ff) ^ (((lane & 0xf) << 0) | (1 << 8)))
+ return DSIM_LANE_STATE_STOP;
+ else {
+ dev_err(dsim->dev, "land state is unknown.\n");
+ return -1;
+ }
+ } else if (lane & DSIM_LANE_DATA_ALL) { /* data lane */
+ if (reg & (lane << 4))
+ return DSIM_LANE_STATE_ULPS;
+ else if (reg & (lane << 0))
+ return DSIM_LANE_STATE_STOP;
+ else {
+ dev_err(dsim->dev, "data lane state is unknown.\n");
+ return -1;
+ }
+ } else if (lane & DSIM_LANE_CLOCK) { /* clock lane */
+ if (reg & (1 << 9))
+ return DSIM_LANE_STATE_ULPS;
+ else if (reg & (1 << 8))
+ return DSIM_LANE_STATE_STOP;
+ else if (reg & (1 << 10))
+ return DSIM_LANE_STATE_HS_READY;
+ else {
+ dev_err(dsim->dev, "data lane state is unknown.\n");
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+void s5p_dsim_set_stop_state_counter(struct dsim_global *dsim,
+ unsigned short cnt_val)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_ESCMODE)) &
+ ~(0x7ff << DSIM_STOP_STATE_CNT_SHIFT);
+
+ reg |= ((cnt_val & 0x7ff) << DSIM_STOP_STATE_CNT_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_ESCMODE);
+}
+
+void s5p_dsim_set_bta_timeout(struct dsim_global *dsim, unsigned char timeout)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_TIMEOUT)) &
+ ~(0xff << DSIM_BTA_TOUT_SHIFT);
+
+ reg |= (timeout << DSIM_BTA_TOUT_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_TIMEOUT);
+}
+
+void s5p_dsim_set_lpdr_timeout(struct dsim_global *dsim,
+ unsigned short timeout)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_TIMEOUT)) &
+ ~(0xffff << DSIM_LPDR_TOUT_SHIFT);
+
+ reg |= (timeout << DSIM_LPDR_TOUT_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_TIMEOUT);
+}
+
+void s5p_dsim_set_data_mode(struct dsim_global *dsim, unsigned char data,
+ unsigned char state)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_ESCMODE);
+
+ if (state == DSIM_STATE_HSCLKEN)
+ reg &= ~data;
+ else
+ reg |= data;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_ESCMODE);
+}
+
+void s5p_dsim_enable_hs_clock(struct dsim_global *dsim, unsigned char enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(1 << DSIM_TX_REQUEST_HSCLK_SHIFT);
+
+ reg |= enable << DSIM_TX_REQUEST_HSCLK_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_dp_dn_swap(struct dsim_global *dsim, unsigned char swap_en)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PHYACCHR1);
+
+ reg &= ~(0x3 << 0);
+ reg |= (swap_en & 0x3) << 0;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PHYACCHR1);
+}
+
+void s5p_dsim_hs_zero_ctrl(struct dsim_global *dsim, unsigned char hs_zero)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0xf << 28);
+
+ reg |= ((hs_zero & 0xf) << 28);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_prep_ctrl(struct dsim_global *dsim, unsigned char prep)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x7 << 20);
+
+ reg |= ((prep & 0x7) << 20);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_clear_interrupt(struct dsim_global *dsim, unsigned int int_src)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
+
+ reg |= int_src;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_INTSRC);
+}
+
+unsigned char s5p_dsim_is_pll_stable(struct dsim_global *dsim)
+{
+ return (unsigned char) ((readl(dsim->reg_base + S5P_DSIM_STATUS) &
+ (1 << 31)) >> 31);
+}
+
+unsigned int s5p_dsim_get_fifo_state(struct dsim_global *dsim)
+{
+ unsigned int ret = 0;
+
+ ret = (readl(dsim->reg_base + S5P_DSIM_FIFOCTRL) & ~(0x1f));
+
+ return ret;
+}
+
+void s5p_dsim_wr_tx_header(struct dsim_global *dsim,
+ unsigned char di, unsigned char data0, unsigned char data1)
+{
+ unsigned int reg = (data1 << 16) | (data0 << 8) | ((di & 0x3f) << 0);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PKTHDR);
+}
+
+unsigned int _s5p_dsim_get_frame_done_status(struct dsim_global *dsim)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
+
+ return (reg & INTSRC_FRAME_DONE) ? 1 : 0;
+}
+
+void _s5p_dsim_clear_frame_done(struct dsim_global *dsim)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
+
+ writel(reg | INTSRC_FRAME_DONE, dsim->reg_base +
+ S5P_DSIM_INTSRC);
+}
+
+void s5p_dsim_wr_tx_data(struct dsim_global *dsim, unsigned int tx_data)
+{
+ writel(tx_data, dsim->reg_base + S5P_DSIM_PAYLOAD);
+}
diff --git a/drivers/video/s5p_dsim_lowlevel.h b/drivers/video/s5p_dsim_lowlevel.h
new file mode 100644
index 0000000..ff950ba
--- /dev/null
+++ b/drivers/video/s5p_dsim_lowlevel.h
@@ -0,0 +1,101 @@
+/* linux/drivers/video/samsung/s5p_dsim_lowlevel.h
+ *
+ * Header file for Samsung MIPI-DSIM lowlevel driver.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _S5P_DSIM_LOWLEVEL_H
+#define _S5P_DSIM_LOWLEVEL_H
+
+struct dsim_global;
+
+extern void s5p_dsim_func_reset(struct dsim_global *dsim);
+extern void s5p_dsim_sw_reset(struct dsim_global *dsim);
+extern void s5p_dsim_set_interrupt_mask(struct dsim_global *dsim,
+ unsigned int mode, unsigned int mask);
+extern void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
+ unsigned char count);
+extern void s5p_dsim_init_fifo_pointer(struct dsim_global *dsim,
+ unsigned char cfg);
+extern void s5p_dsim_set_phy_tunning(struct dsim_global *dsim,
+ unsigned int value);
+extern void s5p_dsim_set_phy_tunning(struct dsim_global *dsim,
+ unsigned int value);
+extern void s5p_dsim_set_main_disp_resol(struct dsim_global *dsim,
+ unsigned short vert_resol, unsigned short hori_resol);
+extern void s5p_dsim_set_main_disp_vporch(struct dsim_global *dsim,
+ unsigned short cmd_allow, unsigned short vfront, unsigned short vback);
+extern void s5p_dsim_set_main_disp_hporch(struct dsim_global *dsim,
+ unsigned short front, unsigned short back);
+extern void s5p_dsim_set_main_disp_sync_area(struct dsim_global *dsim,
+ unsigned short vert, unsigned short hori);
+extern void s5p_dsim_set_sub_disp_resol(struct dsim_global *dsim,
+ unsigned short vert, unsigned short hori);
+extern void s5p_dsim_init_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd_info,
+ struct dsim_lcd_config *sub_lcd_info, struct dsim_config *dsim_info);
+extern void s5p_dsim_display_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd);
+extern void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
+ unsigned char count);
+extern void s5p_dsim_enable_lane(struct dsim_global *dsim, unsigned char lane,
+ unsigned char enable);
+extern void s5p_dsim_enable_afc(struct dsim_global *dsim, unsigned char enable,
+ unsigned char afc_code);
+extern void s5p_dsim_enable_pll_bypass(struct dsim_global *dsim,
+ unsigned char enable);
+extern void s5p_dsim_set_pll_pms(struct dsim_global *dsim, unsigned char p,
+ unsigned short m, unsigned short s);
+extern void s5p_dsim_pll_freq_band(struct dsim_global *dsim,
+ unsigned char freq_band);
+extern void s5p_dsim_pll_freq(struct dsim_global *dsim,
+ unsigned char pre_divider, unsigned short main_divider,
+ unsigned char scaler);
+extern void s5p_dsim_pll_stable_time(struct dsim_global *dsim,
+ unsigned int lock_time);
+extern void s5p_dsim_enable_pll(struct dsim_global *dsim,
+ unsigned char enable);
+extern void s5p_dsim_set_byte_clock_src(struct dsim_global *dsim,
+ unsigned char src);
+extern void s5p_dsim_enable_byte_clock(struct dsim_global *dsim,
+ unsigned char enable);
+extern void s5p_dsim_set_esc_clk_prs(struct dsim_global *dsim,
+ unsigned char enable, unsigned short prs_val);
+extern void s5p_dsim_enable_esc_clk_on_lane(struct dsim_global *dsim,
+ unsigned char lane_sel, unsigned char enable);
+extern void s5p_dsim_force_dphy_stop_state(struct dsim_global *dsim,
+ unsigned char enable);
+extern unsigned char s5p_dsim_is_lane_state(struct dsim_global *dsim,
+ unsigned char lane);
+extern void s5p_dsim_set_stop_state_counter(struct dsim_global *dsim,
+ unsigned short cnt_val);
+extern void s5p_dsim_set_bta_timeout(struct dsim_global *dsim,
+ unsigned char timeout);
+extern void s5p_dsim_set_lpdr_timeout(struct dsim_global *dsim,
+ unsigned short timeout);
+extern void s5p_dsim_set_data_mode(struct dsim_global *dsim,
+ unsigned char data, unsigned char state);
+extern void s5p_dsim_enable_hs_clock(struct dsim_global *dsim,
+ unsigned char enable);
+extern void s5p_dsim_dp_dn_swap(struct dsim_global *dsim,
+ unsigned char swap_en);
+extern void s5p_dsim_hs_zero_ctrl(struct dsim_global *dsim,
+ unsigned char hs_zero);
+extern void s5p_dsim_prep_ctrl(struct dsim_global *dsim, unsigned char prep);
+extern void s5p_dsim_clear_interrupt(struct dsim_global *dsim,
+ unsigned int int_src);
+extern unsigned char s5p_dsim_is_pll_stable(struct dsim_global *dsim);
+extern unsigned int s5p_dsim_get_fifo_state(struct dsim_global *dsim);
+extern unsigned int _s5p_dsim_get_frame_done_status(struct dsim_global *dsim);
+extern void _s5p_dsim_clear_frame_done(struct dsim_global *dsim);
+extern void s5p_dsim_wr_tx_header(struct dsim_global *dsim,
+ unsigned char di, unsigned char data0, unsigned char data1);
+extern void s5p_dsim_wr_tx_data(struct dsim_global *dsim, unsigned int tx_data);
+
+#endif /* _S5P_DSIM_LOWLEVEL_H */
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20100702/2b6784e7/attachment-0001.html>
^ permalink raw reply related [flat|nested] 30+ messages in thread
* Re: [PATCH 0/3] ARM: S5PV210: Add MIPI-DSI support.
2010-06-29 8:31 ` InKi Dae
@ 2010-07-02 13:34 ` Ben Dooks
-1 siblings, 0 replies; 30+ messages in thread
From: Ben Dooks @ 2010-07-02 13:34 UTC (permalink / raw)
To: InKi Dae; +Cc: kmpark, akpm, linux-fbdev-devel, Ben Dooks, linux-arm-kernel
On 29/06/10 09:31, InKi Dae wrote:
> Hello all,
>
> This patch is for MIPI-DSI controller based on S5PV210 (or S5PC110).
>
> LCD Panel can use following interfaces,
> - RGB or CPU Interface.
> - RGB or CPU Interface based on MIPI-DSI.
>
> In case of small size lcd panel, it was ok only rgb or cpu interface not
> using mipi controller.
> But big size panel(more then 480x800) needs MIPI-DSI Interface or other
> hardwares like LVDS
Hmm, I must have imagined connecting up an 1024x768 panel to an RGB
interface then.
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH 0/3] ARM: S5PV210: Add MIPI-DSI support.
@ 2010-07-02 13:34 ` Ben Dooks
0 siblings, 0 replies; 30+ messages in thread
From: Ben Dooks @ 2010-07-02 13:34 UTC (permalink / raw)
To: linux-arm-kernel
On 29/06/10 09:31, InKi Dae wrote:
> Hello all,
>
> This patch is for MIPI-DSI controller based on S5PV210 (or S5PC110).
>
> LCD Panel can use following interfaces,
> - RGB or CPU Interface.
> - RGB or CPU Interface based on MIPI-DSI.
>
> In case of small size lcd panel, it was ok only rgb or cpu interface not
> using mipi controller.
> But big size panel(more then 480x800) needs MIPI-DSI Interface or other
> hardwares like LVDS
Hmm, I must have imagined connecting up an 1024x768 panel to an RGB
interface then.
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [PATCH 2/2] S5PV210: Add MIPI-DSI Driver.
2010-07-02 8:51 ` InKi Dae
@ 2010-07-02 14:03 ` Ben Dooks
-1 siblings, 0 replies; 30+ messages in thread
From: Ben Dooks @ 2010-07-02 14:03 UTC (permalink / raw)
To: InKi Dae; +Cc: kmpark, akpm, linux-fbdev-devel, Ben Dooks, linux-arm-kernel
On 02/07/10 09:51, InKi Dae wrote:
> this patch addes MIPI-DSI Driver.
>
> to use this driver, some structures below should be added to machine
> specific file.
>
> struct dsim_config
> - define clock info, data lane count and video mode info for MIPI-DSI
> Controller.
>
> struct dsim_lcd_config
> - define interface mode, channel ID, Pixel format and so on.
>
> struct s5p_platform_dsim
> - define callbacks for initializing D-PHY, MIPI reset and trigger
> releated interfaces of s3c-fb.c file.
>
> Signed-off-by: InKi Dae <inki.dae@samsung.com <mailto:p.osciak@samsung.com>>
> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com
> <mailto:kyungmin.park@samsung.com>>
> ---
>
> diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
> index 2a25ab4..f716678 100644
> --- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
> +++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
> @@ -162,6 +162,7 @@
>
> /* MIPI */
> #define S5P_MIPI_DPHY_EN (3)
> +#define S5P_MIPI_M_RESETN (1 << 1)
>
> /* S5P_DAC_CONTROL */
> #define S5P_DAC_ENABLE (1)
> diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
> index b1d82cc..3cd43f2 100644
> --- a/arch/arm/plat-samsung/Makefile
> +++ b/arch/arm/plat-samsung/Makefile
> @@ -49,6 +49,9 @@ obj-$(CONFIG_S3C_DEV_RTC) += dev-rtc.o
> obj-$(CONFIG_SAMSUNG_DEV_ADC) += dev-adc.o
> obj-$(CONFIG_SAMSUNG_DEV_TS) += dev-ts.o
>
> +# Device setup - MIPI-DSI
> +obj-$(CONFIG_S5P_MIPI_DSI) += setup-dsim.o
> +
> # DMA support
>
> obj-$(CONFIG_S3C_DMA) += dma.o
> diff --git a/arch/arm/plat-samsung/include/plat/dsim.h b/arch/arm/plat-samsung/include/plat/dsim.h
> new file mode 100644
> index 0000000..28bc595
> --- /dev/null
> +++ b/arch/arm/plat-samsung/include/plat/dsim.h
> @@ -0,0 +1,470 @@
> + * driver structure for mipi-dsi based lcd panel.
> + *
> + * this structure should be registered by lcd panel driver.
> + * mipi-dsi driver seeks lcd panel registered through name field
> + * and calls these callback functions in appropriate time.
> + */
> +struct mipi_lcd_driver {
> + s8 name[64];
how about an 'char *' here instead of reserving 64bytes?
> + s32 (*init)(struct device *dev);
> + void (*display_on)(struct device *dev);
> + s32 (*set_link)(struct mipi_ddi_platform_data *pd);
> + s32 (*probe)(struct device *dev);
> + s32 (*remove)(struct device *dev);
> + void (*shutdown)(struct device *dev);
> + s32 (*suspend)(struct device *dev, pm_message_t mesg);
> + s32 (*resume)(struct device *dev);
> +};
Some of this should be already covered under the existing
lcd interface?
> diff --git a/arch/arm/plat-samsung/include/plat/mipi_ddi.h b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
> new file mode 100644
> index 0000000..57ed613
> --- /dev/null
> +++ b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
> @@ -0,0 +1,98 @@
> +/* linux/arm/arch/mach-s5pc110/include/mach/mipi_ddi.h
> + *
> + * definitions for DDI based MIPI-DSI.
> + *
> + * Copyright (c) 2009 Samsung Electronics
> + * InKi Dae <inki.dae@samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +#ifndef _MIPI_DDI_H
> +#define _MIPI_DDI_H
> +
> +enum mipi_ddi_interface {
> + RGB_IF = 0x4000,
> + I80_IF = 0x8000,
> + YUV_601 = 0x10000,
> + YUV_656 = 0x20000,
> + MIPI_VIDEO = 0x1000,
> + MIPI_COMMAND = 0x2000,
> +};
> +
> +enum mipi_ddi_panel_select {
> + DDI_MAIN_LCD = 0,
> + DDI_SUB_LCD = 1,
> +};
> +
> +enum mipi_ddi_model {
> + S6DR117 = 0,
> +};
> +
> +enum mipi_ddi_parameter {
> + /* DSIM video interface parameter */
> + DSI_VIRTUAL_CH_ID = 0,
> + DSI_FORMAT = 1,
> + DSI_VIDEO_MODE_SEL = 2,
> +};
> +
> +struct lcd_device;
> +struct fb_info;
> +
> +struct mipi_ddi_platform_data {
> + void *dsim_data;
> + /*
> + * it is used for command mode lcd panel and
> + * when all contents of framebuffer in panel module are transfered
> + * to lcd panel it occurs te signal.
> + *
> + * note:
> + * - in case of command mode(cpu mode), it should be triggered only
> + * when TE signal of lcd panel and frame done interrupt of display
> + * controller or mipi controller occurs.
> + */
> + unsigned int te_irq;
> +
> + /*
> + * it is used for PM stable time at te interrupt handler and
> + * could be used according to lcd panel characteristic or not.
> + */
> + unsigned int resume_complete;
> +
> + int (*lcd_reset) (struct lcd_device *ld);
> + int (*lcd_power_on) (struct lcd_device *ld, int enable);
> + int (*backlight_on) (int enable);
> +
> + /* transfer command to lcd panel at LP mode. */
> + int (*cmd_write) (void *dsim_data, unsigned int data_id,
> + unsigned int data0, unsigned int data1);
> + int (*cmd_read) (void *dsim_data, unsigned int data_id,
> + unsigned int data0, unsigned int data1);
> + /*
> + * get the status that all screen data have been transferred
> + * to mipi-dsi.
> + */
> + int (*get_dsim_frame_done) (void *dsim_data);
> + int (*clear_dsim_frame_done) (void *dsim_data);
> +
> + /*
> + * changes mipi transfer mode to LP or HS mode.
> + *
> + * LP mode needs when some commands like gamma values transfers
> + * to lcd panel.
> + */
> + int (*change_dsim_transfer_mode) (int mode);
> +
> + /* get frame done status of display controller. */
> + int (*get_fb_frame_done) (struct fb_info *info);
> + /* trigger display controller in case of cpu mode. */
> + void (*trigger) (struct fb_info *info);
> +
> + unsigned int reset_delay;
> + unsigned int power_on_delay;
> + unsigned int power_off_delay;
> +};
> +
> +#endif /* _MIPI_DDI_H */
> diff --git a/arch/arm/plat-samsung/include/plat/regs-dsim.h b/arch/arm/plat-samsung/include/plat/regs-dsim.h
> new file mode 100644
> index 0000000..dc83089
> --- /dev/null
> +++ b/arch/arm/plat-samsung/include/plat/regs-dsim.h
> @@ -0,0 +1,281 @@
+
> +/* S5P_DSIM_TIMEOUT */
> +#define DSIM_LPDR_TOUT_SHIFT (0)
> +#define DSIM_BTA_TOUT_SHIFT (16)
> +#define DSIM_LPDR_TOUT(x) (((x) & 0xffff) << DSIM_LPDR_TOUT_SHIFT)
> +#define DSIM_BTA_TOUT(x) (((x) & 0xff) << DSIM_BTA_TOUT_SHIFT)
> +
> +/* S5P_DSIM_CLKCTRL */
> +#define DSIM_ESC_PRESCALER_SHIFT (0)
> +#define DSIM_LANE_ESC_CLKEN_SHIFT (19)
> +#define DSIM_BYTE_CLKEN_SHIFT (24)
> +#define DSIM_BYTE_CLK_SRC_SHIFT (25)
> +#define DSIM_PLL_BYPASS_SHIFT (27)
> +#define DSIM_ESC_CLKEN_SHIFT (28)
> +#define DSIM_TX_REQUEST_HSCLK_SHIFT (31)
> +#define DSIM_ESC_PRESCALER(x) (((x) & 0xffff) << \
> + DSIM_ESC_PRESCALER_SHIFT)
> +#define DSIM_LANE_ESC_CLKEN(x) (((x) & 0x1f) << \
> + DSIM_LANE_ESC_CLKEN_SHIFT)
> +#define DSIM_BYTE_CLK_ENABLE (1 << DSIM_BYTE_CLKEN_SHIFT)
> +#define DSIM_BYTE_CLK_DISABLE (0 << DSIM_BYTE_CLKEN_SHIFT)
> +#define DSIM_BYTE_CLKSRC(x) (((x) & 0x3) << DSIM_BYTE_CLK_SRC_SHIFT)
> +#define DSIM_PLL_BYPASS_PLL (0 << DSIM_PLL_BYPASS_SHIFT)
> +#define DSIM_PLL_BYPASS_EXTERNAL (1 << DSIM_PLL_BYPASS_SHIFT)
> +#define DSIM_ESC_CLKEN_ENABLE (1 << DSIM_ESC_CLKEN_SHIFT)
> +#define DSIM_ESC_CLKEN_DISABLE (0 << DSIM_ESC_CLKEN_SHIFT)
> +
> +#include <plat/dsim.h>
> +#include <plat/clock.h>
> +#include <plat/regs-dsim.h>
> +
> +static int s5p_dsim_enable_d_phy(struct dsim_global *dsim, unsigned int enable)
I suppose enable should be bool,
> +{
> + unsigned int reg;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim is NULL.\n");
> + return -EFAULT;
> + }
Is it likely to be NULL? If unlikely then a simple warning and return
-EFAULT.
> +
> + reg = (readl(S5P_MIPI_CONTROL)) & ~(1 << 0);
extra () not really needed
> + reg |= (enable << 0);
> + writel(reg, S5P_MIPI_CONTROL);
> +
> + dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
> +
> + return 0;
> +}
> +
> +static int s5p_dsim_enable_dsi_master(struct dsim_global *dsim,
> + unsigned int enable)
> +{
> + unsigned int reg;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim is NULL.\n");
> + return -EFAULT;
> + }
> +
> + reg = (readl(S5P_MIPI_CONTROL)) & ~(1 << 2);
> + reg |= (enable << 2);
> + writel(reg, S5P_MIPI_CONTROL);
> +
> + dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_part_reset(struct dsim_global *dsim)
> +{
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim is NULL.\n");
> + return -EFAULT;
> + }
> +
> + writel(S5P_MIPI_M_RESETN, S5P_MIPI_PHY_CON0);
> +
> + dev_dbg(dsim->dev, "%s\n", __func__);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_init_d_phy(struct dsim_global *dsim)
> +{
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim is NULL.\n");
> + return -EFAULT;
> + }
> +
> + /* enable D-PHY */
> + s5p_dsim_enable_d_phy(dsim, 1);
> +
> + /* enable DSI master block */
> + s5p_dsim_enable_dsi_master(dsim, 1);
you ould probably have omitted the comments on these.
> +
> + dev_dbg(dsim->dev, "%s\n", __func__);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_mipi_power(struct dsim_global *dsim, void *p_mipi_1_1v,
> + void *p_mipi_1_8v, int enable)
enable could be bool.
> +{
> + struct regulator *r_mipi_1_1v = NULL, *r_mipi_1_8v = NULL;
No need to init to NULL when you just cast them a few lines done.
> + int ret = -1;
> +
> + r_mipi_1_1v = (struct regulator *) p_mipi_1_1v;
> + r_mipi_1_8v = (struct regulator *) p_mipi_1_8v;
It would be better just to call these regulators and stick with one type
for these.
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim is NULL.\n");
> + return -EFAULT;
> + }
this is getting repetitive, is it really necessary?
> +
> + if (IS_ERR(r_mipi_1_1v) || IS_ERR(r_mipi_1_8v)) {
> + dev_err(dsim->dev, "r_mipi_1_1v or r_mipi_1_8v is NULL.\n");
> + return -EINVAL;
> + }
> +
> + if (enable) {
> + if (r_mipi_1_1v)
> + ret = regulator_enable(r_mipi_1_1v);
> +
> + if (ret < 0) {
> + dev_err(dsim->dev,
> + "failed to enable regulator mipi_1_1v.\n");
> + return ret;
> + }
> +
> + if (r_mipi_1_8v)
> + ret = regulator_enable(r_mipi_1_8v);
> +
> + if (ret < 0) {
> + dev_err(dsim->dev,
> + "failed to enable regulator mipi_1_8v.\n");
> + return ret;
> + }
> + } else {
> + if (r_mipi_1_1v)
> + ret = regulator_force_disable(r_mipi_1_1v);
> + if (ret < 0) {
> + dev_err(dsim->dev,
> + "failed to disable regulator mipi_1_1v.\n");
> + return ret;
> + }
> +
> + if (r_mipi_1_8v)
> + ret = regulator_force_disable(r_mipi_1_8v);
> + if (ret < 0) {
> + dev_err(dsim->dev,
> + "failed to disable regulator mipi_1_8v.\n");
> + return ret;
> + }
> + }
> +
> + return ret;
> +}
> diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
> index 3d94a14..c916ac1 100644
> --- a/drivers/video/Kconfig
> +++ b/drivers/video/Kconfig
> @@ -1930,7 +1930,7 @@ config FB_TMIO_ACCELL
>
> config FB_S3C
> tristate "Samsung S3C framebuffer support"
> - depends on FB && ARCH_S3C64XX
> + depends on FB && (ARCH_S3C64XX || ARCH_S5PV210)
> select FB_CFB_FILLRECT
> select FB_CFB_COPYAREA
> select FB_CFB_IMAGEBLIT
> @@ -1975,6 +1975,13 @@ config FB_S3C2410_DEBUG
> Turn on debugging messages. Note that you can set/unset at run time
> through sysfs
>
> +config S5P_MIPI_DSI
> + tristate "Samsung SoC MIPI-DSI support."
> + depends on FB_S3C && ARCH_S5PV210
> + default n
> + ---help---
> + This enables support for MIPI-DSI device.
> +
> config FB_NUC900
> bool "NUC900 LCD framebuffer support"
> depends on FB && ARCH_W90X900
> diff --git a/drivers/video/Makefile b/drivers/video/Makefile
> index ddc2af2..d841433 100644
> --- a/drivers/video/Makefile
> +++ b/drivers/video/Makefile
> @@ -115,6 +115,8 @@ obj-$(CONFIG_FB_SH7760) += sh7760fb.o
> obj-$(CONFIG_FB_IMX) += imxfb.o
> obj-$(CONFIG_FB_S3C) += s3c-fb.o
> obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o
> +obj-$(CONFIG_S5P_MIPI_DSI) += s5p-dsim.o s5p_dsim_common.o \
> + s5p_dsim_lowlevel.o
> obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o
> obj-$(CONFIG_FB_COBALT) += cobalt_lcdfb.o
> obj-$(CONFIG_FB_PNX4008_DUM) += pnx4008/
> diff --git a/drivers/video/s5p-dsim.c b/drivers/video/s5p-dsim.c
> new file mode 100644
> index 0000000..96893bc
> --- /dev/null
> +++ b/drivers/video/s5p-dsim.c
> @@ -0,0 +1,483 @@
> +/* linux/drivers/video/samsung/s5p-dsim.c
> + *
> + * Samsung MIPI-DSIM driver.
> + *
> + * InKi Dae, <inki.dae@samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +#include <linux/module.h>
> +#include <linux/kernel.h>
> +#include <linux/errno.h>
> +#include <linux/clk.h>
> +#include <linux/mutex.h>
> +#include <linux/wait.h>
> +#include <linux/fs.h>
> +#include <linux/mm.h>
> +#include <linux/fb.h>
> +#include <linux/ctype.h>
> +#include <linux/platform_device.h>
> +#include <linux/io.h>
> +#include <linux/irq.h>
> +#include <linux/memory.h>
> +#include <linux/delay.h>
> +#include <linux/interrupt.h>
> +#include <linux/kthread.h>
> +#include <linux/regulator/consumer.h>
> +#include <linux/notifier.h>
> +
> +#include <plat/fb.h>
> +#include <plat/regs-dsim.h>
> +#include <plat/dsim.h>
> +#include <plat/mipi_ddi.h>
> +
> +#include <mach/map.h>
> +
> +#include "s5p_dsim_common.h"
> +
> +struct mipi_lcd_info {
> + struct list_head list;
> + struct mipi_lcd_driver *mipi_drv;
> +};
> +
> +static LIST_HEAD(lcd_info_list);
> +static DEFINE_MUTEX(mipi_lock);
> +
> +struct dsim_global dsim;
> +
> +struct s5p_platform_dsim *to_dsim_plat(struct device *dev)
> +{
> + struct platform_device *pdev = to_platform_device(dev);
> +
> + return (struct s5p_platform_dsim *)pdev->dev.platform_data;
> +}
that's return dev->platform_data.
> +/*
> + * notifier callback function for fb_blank
> + * - this function would be called by device specific fb_blank.
> + */
> +static int s5p_dsim_notifier_callback(struct notifier_block *self,
> + unsigned long event, void *data)
> +{
> + pm_message_t pm;
> +
> + pm.event = 0;
do we really need to produce this pm structure.
> + switch (event) {
> + case FB_BLANK_UNBLANK:
> + case FB_BLANK_NORMAL:
> + if (dsim.pd->mipi_power)
> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
> + (void *) dsim.r_mipi_1_8v, 1);
> +
> + clk_enable(dsim.clock);
> +
> + if (dsim.mipi_drv->resume)
> + dsim.mipi_drv->resume(dsim.dev);
> +
> + s5p_dsim_init_dsim(&dsim);
> + s5p_dsim_init_link(&dsim);
> +
> + s5p_dsim_set_hs_enable(&dsim);
> + s5p_dsim_set_data_transfer_mode(&dsim,
> + DSIM_TRANSFER_BYCPU, 1);
> +
> + /* it needs delay for stabilization */
> + mdelay(dsim.pd->delay_for_stabilization);
> +
> + if (dsim.mipi_drv->init)
> + dsim.mipi_drv->init(dsim.dev);
> + else
> + dev_warn(dsim.dev, "init func is null.\n");
> +
> + s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
> +
> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
> + dsim.mipi_ddi_pd->resume_complete = 1;
> +
> + dev_dbg(dsim.dev, "FB_BLANK_NORMAL or UNBLANK.\n");
> +
> + break;
> + case FB_BLANK_POWERDOWN:
> + dsim.mipi_ddi_pd->resume_complete = 0;
> +
> + if (dsim.mipi_drv->suspend)
> + dsim.mipi_drv->suspend(dsim.dev, pm);
> +
> + clk_disable(dsim.clock);
> +
> + if (dsim.pd->mipi_power)
> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
> + (void *) dsim.r_mipi_1_8v, 0);
> +
> + dev_dbg(dsim.dev, "FB_BLANK_POWERDOWN.\n");
> + break;
> + default:
> + dev_warn(dsim.dev, "unknown FB_BLANK command.\n");
> + break;
> + }
> +
> + return 0;
> +}
> +
> +static int s5p_dsim_register_notif(struct device *dev)
> +{
> + memset(&dsim.s3cfb_notif, 0, sizeof(struct notifier_block));
> + dsim.s3cfb_notif.notifier_call = s5p_dsim_notifier_callback;
> +
> + return 0/*s3cfb_register_client(&dsim.s3cfb_notif)*/;
> +}
> +
> +static irqreturn_t s5p_dsim_interrupt_handler(int irq, void *dev_id)
> +{
> + disable_irq(irq);
> +
> + /* additional work. */
> +
> + enable_irq(irq);
> +
> + return IRQ_HANDLED;
> +}
?
> +
> +int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv)
> +{
> + struct mipi_lcd_info *lcd_info = NULL;
> +
> + lcd_info = kmalloc(sizeof(struct mipi_lcd_info), GFP_KERNEL);
> + if (lcd_info == NULL)
> + return -ENOMEM;
> +
> + lcd_info->mipi_drv = kmalloc(sizeof(struct mipi_lcd_driver),
> + GFP_KERNEL);
> + if (lcd_info->mipi_drv == NULL)
> + return -ENOMEM;
> +
> +
> + memcpy(lcd_info->mipi_drv, lcd_drv, sizeof(struct mipi_lcd_driver));
> +
> + mutex_lock(&mipi_lock);
> + list_add_tail(&lcd_info->list, &lcd_info_list);
> + mutex_unlock(&mipi_lock);
> +
> + dev_dbg(dsim.dev, "registered panel driver(%s) to mipi-dsi driver.\n",
> + lcd_drv->name);
> +
> + return 0;
> +}
> +
> +/*
> + * This function is wrapper for changing transfer mode.
> + * It is used to in panel driver before and after changing gamma value.
> + */
> +static int s5p_dsim_change_transfer_mode(int mode)
> +{
> + if (mode < 0 || mode > 1) {
> + dev_err(dsim.dev, "mode range should be 0 or 1.\n");
> + return -EFAULT;
> + }
> +
> + if (mode == 0)
> + s5p_dsim_set_data_transfer_mode(&dsim,
> + DSIM_TRANSFER_BYCPU, mode);
> + else
> + s5p_dsim_set_data_transfer_mode(&dsim,
> + DSIM_TRANSFER_BYLCDC, mode);
> +
> + return 0;
> +}
> +
> +struct mipi_lcd_driver *scan_mipi_driver(const char *name)
> +{
> + struct mipi_lcd_info *lcd_info;
> + struct mipi_lcd_driver *mipi_drv = NULL;
> +
> + mutex_lock(&mipi_lock);
> +
> + dev_dbg(dsim.dev, "find lcd panel driver(%s).\n",
> + name);
> +
> + list_for_each_entry(lcd_info, &lcd_info_list, list) {
> + mipi_drv = lcd_info->mipi_drv;
> +
> + if ((strcmp(mipi_drv->name, name)) == 0) {
> + mutex_unlock(&mipi_lock);
> + dev_dbg(dsim.dev, "found!!!(%s).\n", mipi_drv->name);
> + return mipi_drv;
> + }
> + }
> +
> + dev_warn(dsim.dev, "failed to find lcd panel driver(%s).\n",
> + name);
> +
> + mutex_unlock(&mipi_lock);
> +
> + return NULL;
> +}
> +
> +static int s5p_dsim_probe(struct platform_device *pdev)
> +{
> + struct resource *res;
> + int ret = -1;
> +
> + dsim.pd = to_dsim_plat(&pdev->dev);
> + dsim.dev = &pdev->dev;
> +
> + /* set dsim config data, dsim lcd config data and lcd panel data. */
> + dsim.dsim_info = dsim.pd->dsim_info;
> + dsim.dsim_lcd_info = dsim.pd->dsim_lcd_info;
> + dsim.lcd_panel_info =
> + (struct fb_videomode *) dsim.dsim_lcd_info->lcd_panel_info;
why isn't this in the correct type to begin with.
> + dsim.mipi_ddi_pd =
> + (struct mipi_ddi_platform_data *)
> + dsim.dsim_lcd_info->mipi_ddi_pd;
and again.
> + dsim.mipi_ddi_pd->resume_complete = 0;
> +
> + dsim.r_mipi_1_1v = regulator_get(&pdev->dev, "VMIPI_1.1V");
> + if (IS_ERR(dsim.r_mipi_1_1v)) {
> + dev_err(&pdev->dev, "failed to get regulator VMIPI_1.1V.\n");
> + goto regulator_get_err;
> + }
> +
> + dsim.r_mipi_1_8v = regulator_get(&pdev->dev, "VMIPI_1.8V");
> + if (IS_ERR(dsim.r_mipi_1_8v)) {
> + dev_err(&pdev->dev, "failed to get regulator VMIPI_1.8V.\n");
> + goto regulator_get_err;
> + }
> +
> + /* clock */
> + dsim.clock = clk_get(&pdev->dev, dsim.pd->clk_name);
> + if (IS_ERR(dsim.clock)) {
> + dev_err(&pdev->dev, "failed to get dsim clock source\n");
> + return -EINVAL;
> + }
> +
> + clk_enable(dsim.clock);
> +
> + /* io memory */
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> + if (!res) {
> + dev_err(&pdev->dev, "failed to get io memory region\n");
> + ret = -EINVAL;
> + goto err_clk_disable;
> + }
> +
> + /* request mem region */
> + res = request_mem_region(res->start,
> + res->end - res->start + 1, pdev->name);
resource_size()
> + if (!res) {
> + dev_err(&pdev->dev, "failed to request io memory region\n");
> + ret = -EINVAL;
> + goto err_clk_disable;
> + }
> +
> + /* ioremap for register block */
> + dsim.reg_base = (unsigned int) ioremap(res->start,
> + res->end - res->start + 1);
ARGH. dsim.reg_base should be 'void __iomem *'
> + if (!dsim.reg_base) {
> + dev_err(&pdev->dev, "failed to remap io region\n");
> + ret = -EINVAL;
> + goto err_clk_disable;
> + }
> +
> + /* it is used for MIPI-DSI based lcd panel driver. */
> + dsim.mipi_ddi_pd->dsim_data = (void *)&dsim;
> +
> + /*
> + * it uses frame done interrupt handler
> + * only in case of MIPI Video mode.
> + */
> + if (dsim.dsim_lcd_info->e_interface == DSIM_VIDEO) {
> + dsim.irq = platform_get_irq(pdev, 0);
> + if (request_irq(dsim.irq, s5p_dsim_interrupt_handler,
> + IRQF_TRIGGER_RISING, "mipi-dsi", &dsim)) {
do internal interrupts really need a trigger flag?
> + dev_err(&pdev->dev, "request_irq failed.\n");
> + goto err_trigger_irq;
> + }
> + }
> +
> + if (dsim.pd->mipi_power)
> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
> + (void *) dsim.r_mipi_1_8v, 1);
> + else {
> + dev_err(&pdev->dev, "mipi_power is NULL.\n");
> + goto mipi_power_err;
> + }
> +
> + /* find lcd panel driver registered to mipi-dsi driver. */
> + dsim.mipi_drv = scan_mipi_driver(dsim.pd->lcd_panel_name);
> + if (dsim.mipi_drv == NULL) {
> + dev_err(&pdev->dev, "mipi_drv is NULL.\n");
> + goto mipi_drv_err;
> + }
> +
> + /* register callback functions that lcd panel driver needs. */
> + dsim.mipi_ddi_pd->cmd_write = s5p_dsim_wr_data;
> + dsim.mipi_ddi_pd->cmd_read = NULL;
> + dsim.mipi_ddi_pd->get_dsim_frame_done =
> + s5p_dsim_get_frame_done_status;
> + dsim.mipi_ddi_pd->clear_dsim_frame_done = s5p_dsim_clear_frame_done;
> + dsim.mipi_ddi_pd->change_dsim_transfer_mode =
> + s5p_dsim_change_transfer_mode;
> + dsim.mipi_ddi_pd->get_fb_frame_done = dsim.pd->get_fb_frame_done;
> + dsim.mipi_ddi_pd->trigger = dsim.pd->trigger;
this looks like it should have been in a struture to be copied.
> + /* set lcd panel driver link */
> + ret = dsim.mipi_drv->set_link(dsim.mipi_ddi_pd);
> + if (ret < 0) {
> + dev_err(&pdev->dev, "failed to set link.\n");
> + goto mipi_drv_err;
> + }
> +
> + dsim.mipi_drv->probe(&pdev->dev);
> +
> + s5p_dsim_init_dsim(&dsim);
> + s5p_dsim_init_link(&dsim);
> +
> + s5p_dsim_set_hs_enable(&dsim);
> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
> +
> + /* it needs delay for stabilization */
> + mdelay(dsim.pd->delay_for_stabilization);
> +
> + /* initialize lcd panel */
> + if (dsim.mipi_drv->init)
> + dsim.mipi_drv->init(&pdev->dev);
> + else
> + dev_warn(&pdev->dev, "init func is null.\n");
> +
> + if (dsim.mipi_drv->display_on)
> + dsim.mipi_drv->display_on(&pdev->dev);
> + else
> + dev_warn(&pdev->dev, "display_on func is null.\n");
> +
> + s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
> +
> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
> +
> + s5p_dsim_register_notif(&pdev->dev);
> +
> + /* in case of command mode, trigger. */
> + if (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) {
> + if (dsim.pd->trigger)
> + dsim.pd->trigger(registered_fb[0]);
> + else
> + dev_warn(&pdev->dev, "trigger is null.\n");
> + }
> +
> + dev_info(&pdev->dev, "mipi-dsi driver(%s mode) has been probed.\n",
> + (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) ?
> + "CPU" : "RGB");
> +
> + return 0;
> +
> +err_trigger_irq:
> +mipi_drv_err:
> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
> + (void *) dsim.r_mipi_1_8v, 0);
> +
> +mipi_power_err:
> + iounmap((void __iomem *) dsim.reg_base);
> +
> +err_clk_disable:
> + clk_disable(dsim.clock);
> +
> +regulator_get_err:
> +
> + return ret;
> +
> +}
> +
> +static int s5p_dsim_remove(struct platform_device *pdev)
> +{
> + return 0;
> +}
> +
> +#ifdef CONFIG_PM
> +int s5p_dsim_suspend(struct platform_device *pdev, pm_message_t state)
> +{
> + dsim.mipi_ddi_pd->resume_complete = 0;
> +
> + if (dsim.mipi_drv->suspend)
> + dsim.mipi_drv->suspend(&pdev->dev, state);
> +
> + clk_disable(dsim.clock);
> +
> + if (dsim.pd->mipi_power)
> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
> + (void *) dsim.r_mipi_1_8v, 0);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_resume(struct platform_device *pdev)
> +{
> + if (dsim.pd->mipi_power)
> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
> + (void *) dsim.r_mipi_1_8v, 1);
> +
> + clk_enable(dsim.clock);
> +
> + if (dsim.mipi_drv->resume)
> + dsim.mipi_drv->resume(&pdev->dev);
> +
> + s5p_dsim_init_dsim(&dsim);
> + s5p_dsim_init_link(&dsim);
> +
> + s5p_dsim_set_hs_enable(&dsim);
> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
> +
> + /* it needs delay for stabilization */
> + mdelay(dsim.pd->delay_for_stabilization);
> +
> + /* initialize lcd panel */
> + if (dsim.mipi_drv->init)
> + dsim.mipi_drv->init(&pdev->dev);
> + else
> + dev_warn(&pdev->dev, "init func is null.\n");
> +
> + s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
> +
> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
> +
> + dsim.mipi_ddi_pd->resume_complete = 1;
> +
> + return 0;
> +}
> +#else
> +#define s5p_dsim_suspend NULL
> +#define s5p_dsim_resume NULL
> +#endif
> +
> +static struct platform_driver s5p_dsim_driver = {
> + .probe = s5p_dsim_probe,
> + .remove = s5p_dsim_remove,
> + .suspend = s5p_dsim_suspend,
> + .resume = s5p_dsim_resume,
> + .driver = {
> + .name = "s5p-dsim",
> + .owner = THIS_MODULE,
> + },
> +};
> +
> +static int s5p_dsim_register(void)
> +{
> + platform_driver_register(&s5p_dsim_driver);
> +
> + return 0;
> +}
> +
> +static void s5p_dsim_unregister(void)
> +{
> + platform_driver_unregister(&s5p_dsim_driver);
> +}
> +
> +module_init(s5p_dsim_register);
> +module_exit(s5p_dsim_unregister);
> +
> +MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
> +MODULE_DESCRIPTION("Samusung MIPI-DSIM driver");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/video/s5p_dsim_common.c b/drivers/video/s5p_dsim_common.c
> new file mode 100644
> index 0000000..77724dc
> --- /dev/null
> +++ b/drivers/video/s5p_dsim_common.c
> @@ -0,0 +1,753 @@
> +/* linux/drivers/video/samsung/s5p_dsim_common.c
> + *
> + * Samsung MIPI-DSIM common driver.
> + *
> + * InKi Dae, <inki.dae@samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +#include <linux/module.h>
> +#include <linux/kernel.h>
> +#include <linux/errno.h>
> +#include <linux/mutex.h>
> +#include <linux/wait.h>
> +#include <linux/fs.h>
> +#include <linux/mm.h>
> +#include <linux/fb.h>
> +#include <linux/ctype.h>
> +#include <linux/platform_device.h>
> +#include <linux/io.h>
> +#include <linux/memory.h>
> +#include <linux/delay.h>
> +#include <linux/kthread.h>
> +
> +#include <plat/fb.h>
> +#include <plat/regs-dsim.h>
> +
> +#include <mach/map.h>
> +#include <plat/dsim.h>
> +#include <plat/mipi_ddi.h>
> +
> +#include "s5p_dsim_lowlevel.h"
> +
> +static void s5p_dsim_long_data_wr(struct dsim_global *dsim, unsigned int data0,
> + unsigned int data1)
> +{
> + unsigned int data_cnt = 0, payload = 0;
> +
> + /* in case that data count is more then 4 */
> + for (data_cnt = 0; data_cnt < data1; data_cnt += 4) {
> + /*
> + * after sending 4bytes per one time,
> + * send remainder data less then 4.
> + */
> + if ((data1 - data_cnt) < 4) {
> + if ((data1 - data_cnt) == 3) {
> + payload = *(u8 *)(data0 + data_cnt) |
> + (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
> + (*(u8 *)(data0 + (data_cnt + 2))) << 16;
Erm, why wheren't these types kept as 'u8 *', this amount of casting
should be ringing alarm bells all over the place.
> + dev_dbg(dsim->dev, "count = 3 payload = %x, %x %x %x\n",
> + payload, *(u8 *)(data0 + data_cnt),
> + *(u8 *)(data0 + (data_cnt + 1)),
> + *(u8 *)(data0 + (data_cnt + 2)));
> + } else if ((data1 - data_cnt) == 2) {
> + payload = *(u8 *)(data0 + data_cnt) |
> + (*(u8 *)(data0 + (data_cnt + 1))) << 8;
> + dev_dbg(dsim->dev,
> + "count = 2 payload = %x, %x %x\n", payload,
> + *(u8 *)(data0 + data_cnt),
> + *(u8 *)(data0 + (data_cnt + 1)));
> + } else if ((data1 - data_cnt) == 1) {
> + payload = *(u8 *)(data0 + data_cnt);
> + }
> +
> + s5p_dsim_wr_tx_data(dsim, payload);
> + /* send 4bytes per one time. */
> + } else {
> + payload = *(u8 *)(data0 + data_cnt) |
> + (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
> + (*(u8 *)(data0 + (data_cnt + 2))) << 16 |
> + (*(u8 *)(data0 + (data_cnt + 3))) << 24;
> +
> + dev_dbg(dsim->dev,
> + "count = 4 payload = %x, %x %x %x %x\n",
> + payload, *(u8 *)(data0 + data_cnt),
> + *(u8 *)(data0 + (data_cnt + 1)),
> + *(u8 *)(data0 + (data_cnt + 2)),
> + *(u8 *)(data0 + (data_cnt + 3)));
> +
> + s5p_dsim_wr_tx_data(dsim, payload);
> + }
> + }
> +}
> +
> +int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
> + unsigned int data0, unsigned int data1)
> +{
> + struct dsim_global *dsim = NULL;
> + unsigned int timeout = 5000 * 2;
> + unsigned long delay_val, udelay;
> + unsigned char check_rx_ack = 0;
> +
> + dsim = (struct dsim_global *)dsim_data;
> +
> + if (dsim == NULL) {
> + dev_err(dsim->dev, "dsim_data is NULL.\n");
> + return -EFAULT;
> + }
> +
> +
> + if (dsim->state == DSIM_STATE_ULPS) {
> + dev_err(dsim->dev, "state is ULPS.\n");
> +
> + return -EINVAL;
> + }
> +
> + delay_val = 1000000 / dsim->dsim_info->esc_clk;
> + udelay = 10 * delay_val;
> +
> + mdelay(udelay);
> +
> + /* only if transfer mode is LPDT, wait SFR becomes empty. */
> + if (dsim->state == DSIM_STATE_STOP) {
> + while (!(s5p_dsim_get_fifo_state(dsim) &
> + SFR_HEADER_EMPTY)) {
> + if ((timeout--) > 0)
> + mdelay(1);
> + else {
> + dev_err(dsim->dev,
> + "SRF header fifo is not empty.\n");
> + return -EINVAL;
> + }
> + }
> + }
> +
> + switch (data_id) {
> + /* short packet types of packet types for command. */
> + case GEN_SHORT_WR_NO_PARA:
> + case GEN_SHORT_WR_1_PARA:
> + case GEN_SHORT_WR_2_PARA:
> + case DCS_WR_NO_PARA:
> + case DCS_WR_1_PARA:
> + case SET_MAX_RTN_PKT_SIZE:
> + s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
> + (unsigned char) data0, (unsigned char) data1);
> + if (check_rx_ack)
> + /* process response func should be implemented */
> + return 0;
> + else
> + return -EINVAL;
> +
> + /* general command */
> + case CMD_OFF:
> + case CMD_ON:
> + case SHUT_DOWN:
> + case TURN_ON:
> + s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
> + (unsigned char) data0, (unsigned char) data1);
> + if (check_rx_ack)
> + /* process response func should be implemented. */
> + return 0;
> + else
> + return -EINVAL;
> +
> + /* packet types for video data */
> + case VSYNC_START:
> + case VSYNC_END:
> + case HSYNC_START:
> + case HSYNC_END:
> + case EOT_PKT:
> + return 0;
> +
> + /* short and response packet types for command */
> + case GEN_RD_1_PARA:
> + case GEN_RD_2_PARA:
> + case GEN_RD_NO_PARA:
> + case DCS_RD_NO_PARA:
> + s5p_dsim_clear_interrupt(dsim, 0xffffffff);
> + s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
> + (unsigned char) data0, (unsigned char) data1);
> + /* process response func should be implemented. */
> + return 0;
> +
> + /* long packet type and null packet */
> + case NULL_PKT:
> + case BLANKING_PKT:
> + return 0;
> + case GEN_LONG_WR:
> + case DCS_LONG_WR:
> + {
> + unsigned int size, data_cnt = 0, payload = 0;
> +
> + size = data1 * 4;
> +
> + /* if data count is less then 4, then send 3bytes data. */
> + if (data1 < 4) {
> + payload = *(u8 *)(data0) |
> + *(u8 *)(data0 + 1) << 8 |
> + *(u8 *)(data0 + 2) << 16;
> +
> + s5p_dsim_wr_tx_data(dsim, payload);
> +
> + dev_dbg(dsim->dev, "count = %d payload = %x,%x %x %x\n",
> + data1, payload,
> + *(u8 *)(data0 + data_cnt),
> + *(u8 *)(data0 + (data_cnt + 1)),
> + *(u8 *)(data0 + (data_cnt + 2)));
> + /* in case that data count is more then 4 */
> + } else
> + s5p_dsim_long_data_wr(dsim, data0, data1);
> +
> + /* put data into header fifo */
> + s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
> + (unsigned char) (((unsigned short) data1) & 0xff),
> + (unsigned char) ((((unsigned short) data1) & 0xff00) >>
> + 8));
> +
> + }
> + if (check_rx_ack)
> + /* process response func should be implemented. */
> + return 0;
> + else
> + return -EINVAL;
> +
> + /* packet typo for video data */
> + case RGB565_PACKED:
> + case RGB666_PACKED:
> + case RGB666_LOOSLY:
> + case RGB888_PACKED:
> + if (check_rx_ack)
> + /* process response func should be implemented. */
> + return 0;
> + else
> + return -EINVAL;
> + default:
> + dev_warn(dsim->dev,
> + "data id %x is not supported current DSI spec.\n",
> + data_id);
> +
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +int s5p_dsim_init_header_fifo(struct dsim_global *dsim)
> +{
> + unsigned int cnt;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + for (cnt = 0; cnt < DSIM_HEADER_FIFO_SZ; cnt++)
> + dsim->header_fifo_index[cnt] = -1;
> + return 0;
> +}
> +
> +int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned char enable)
how about 'bool' for enable.
> +{
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + if (enable) {
> + int sw_timeout = 1000;
> + s5p_dsim_clear_interrupt(dsim, DSIM_PLL_STABLE);
> + s5p_dsim_enable_pll(dsim, 1);
> + while (1) {
> + sw_timeout--;
> + if (s5p_dsim_is_pll_stable(dsim))
> + return 0;
> + if (sw_timeout == 0)
> + return -EINVAL;
> + }
> + } else
> + s5p_dsim_enable_pll(dsim, 0);
> +
> + return 0;
> +}
> +
> +unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
> + unsigned char pre_divider, unsigned short main_divider,
> + unsigned char scaler)
> +{
> + unsigned long dfin_pll, dfvco, dpll_out;
> + unsigned char freq_band;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return 0;
> + }
> +
> + dfin_pll = (MIPI_FIN / pre_divider);
> +
> + if (dfin_pll < 6 * 1000 * 1000 || dfin_pll > 12 * 1000 * 1000) {
> + dev_warn(dsim->dev, "warning!!\n");
> + dev_warn(dsim->dev, "fin_pll range is 6MHz ~ 12MHz\n");
> + dev_warn(dsim->dev, "fin_pll of mipi dphy pll is %luMHz\n",
> + (dfin_pll / 1000000));
> +
> + s5p_dsim_enable_afc(dsim, 0, 0);
> + } else {
> + if (dfin_pll < 7 * 1000000)
> + s5p_dsim_enable_afc(dsim, 1, 0x1);
> + else if (dfin_pll < 8 * 1000000)
> + s5p_dsim_enable_afc(dsim, 1, 0x0);
> + else if (dfin_pll < 9 * 1000000)
> + s5p_dsim_enable_afc(dsim, 1, 0x3);
> + else if (dfin_pll < 10 * 1000000)
> + s5p_dsim_enable_afc(dsim, 1, 0x2);
> + else if (dfin_pll < 11 * 1000000)
> + s5p_dsim_enable_afc(dsim, 1, 0x5);
> + else
> + s5p_dsim_enable_afc(dsim, 1, 0x4);
> + }
> +
> + dfvco = dfin_pll * main_divider;
> + dev_dbg(dsim->dev, "dfvco = %lu, dfin_pll = %lu, main_divider = %d\n",
> + dfvco, dfin_pll, main_divider);
> + if (dfvco < 500000000 || dfvco > 1000000000) {
> + dev_warn(dsim->dev, "Caution!!\n");
> + dev_warn(dsim->dev, "fvco range is 500MHz ~ 1000MHz\n");
> + dev_warn(dsim->dev, "fvco of mipi dphy pll is %luMHz\n",
> + (dfvco / 1000000));
> + }
> +
> + dpll_out = dfvco / (1 << scaler);
> + dev_dbg(dsim->dev, "dpll_out = %lu, dfvco = %lu, scaler = %d\n",
> + dpll_out, dfvco, scaler);
> + if (dpll_out < 100 * 1000000)
> + freq_band = 0x0;
> + else if (dpll_out < 120 * 1000000)
> + freq_band = 0x1;
> + else if (dpll_out < 170 * 1000000)
> + freq_band = 0x2;
> + else if (dpll_out < 220 * 1000000)
> + freq_band = 0x3;
> + else if (dpll_out < 270 * 1000000)
> + freq_band = 0x4;
> + else if (dpll_out < 320 * 1000000)
> + freq_band = 0x5;
> + else if (dpll_out < 390 * 1000000)
> + freq_band = 0x6;
> + else if (dpll_out < 450 * 1000000)
> + freq_band = 0x7;
> + else if (dpll_out < 510 * 1000000)
> + freq_band = 0x8;
> + else if (dpll_out < 560 * 1000000)
> + freq_band = 0x9;
> + else if (dpll_out < 640 * 1000000)
> + freq_band = 0xa;
> + else if (dpll_out < 690 * 1000000)
> + freq_band = 0xb;
> + else if (dpll_out < 770 * 1000000)
> + freq_band = 0xc;
> + else if (dpll_out < 870 * 1000000)
> + freq_band = 0xd;
> + else if (dpll_out < 950 * 1000000)
> + freq_band = 0xe;
> + else
> + freq_band = 0xf;
something says a divide down before the ompatr would have been
a good idea, it is almost a table.
> + dev_dbg(dsim->dev, "freq_band = %d\n", freq_band);
> +
> + s5p_dsim_pll_freq(dsim, pre_divider, main_divider, scaler);
> +
> + {
> + unsigned char temp0, temp1;
> +
> + temp0 = 0;
> + s5p_dsim_hs_zero_ctrl(dsim, temp0);
> + temp1 = 0;
> + s5p_dsim_prep_ctrl(dsim, temp1);
> + }
> +
> + /* Freq Band */
> + s5p_dsim_pll_freq_band(dsim, freq_band);
> +
> + /* Stable time */
> + s5p_dsim_pll_stable_time(dsim,
> + dsim->dsim_info->pll_stable_time);
> +
> + /* Enable PLL */
> + dev_dbg(dsim->dev, "FOUT of mipi dphy pll is %luMHz\n",
> + (dpll_out / 1000000));
> +
> + return dpll_out;
> +}
> +
> +int s5p_dsim_set_clock(struct dsim_global *dsim,
> + unsigned char byte_clk_sel, unsigned char enable)
> +{
> + unsigned int esc_div;
> + unsigned long esc_clk_error_rate;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EINVAL;
> + }
again, how about making this code WARN_ON?
> + if (enable) {
> + dsim->e_clk_src = byte_clk_sel;
> +
> + /* Escape mode clock and byte clock source */
> + s5p_dsim_set_byte_clock_src(dsim, byte_clk_sel);
> +
> + /* DPHY, DSIM Link : D-PHY clock out */
> + if (byte_clk_sel == DSIM_PLL_OUT_DIV8) {
> + dsim->hs_clk = s5p_dsim_change_pll(dsim,
> + dsim->dsim_info->p, dsim->dsim_info->m,
> + dsim->dsim_info->s);
> + if (dsim->hs_clk == 0) {
> + dev_err(dsim->dev,
> + "failed to get hs clock.\n");
> + return -EINVAL;
> + }
> +
> + dsim->byte_clk = dsim->hs_clk / 8;
> + s5p_dsim_enable_pll_bypass(dsim, 0);
> + s5p_dsim_pll_on(dsim, 1);
> + /* DPHY : D-PHY clock out, DSIM link : external clock out */
> + } else if (byte_clk_sel == DSIM_EXT_CLK_DIV8)
> + dev_warn(dsim->dev,
> + "this project is not support \
> + external clock source for MIPI DSIM\n");
> + else if (byte_clk_sel == DSIM_EXT_CLK_BYPASS)
> + dev_warn(dsim->dev,
> + "this project is not support \
> + external clock source for MIPI DSIM\n");
> +
> + /* escape clock divider */
> + esc_div = dsim->byte_clk / (dsim->dsim_info->esc_clk);
> + dev_dbg(dsim->dev,
> + "esc_div = %d, byte_clk = %lu, esc_clk = %lu\n",
> + esc_div, dsim->byte_clk, dsim->dsim_info->esc_clk);
> + if ((dsim->byte_clk / esc_div) >= 20000000 ||
> + (dsim->byte_clk / esc_div) > dsim->dsim_info->esc_clk)
> + esc_div += 1;
> +
> + dsim->escape_clk = dsim->byte_clk / esc_div;
> + dev_dbg(dsim->dev,
> + "escape_clk = %lu, byte_clk = %lu, esc_div = %d\n",
> + dsim->escape_clk, dsim->byte_clk, esc_div);
> +
> + /*
> + * enable escclk on lane
> + *
> + * in case of evt0, DSIM_TRUE is enable and
> + * DSIM_FALSE is enable for evt1.
> + */
> + if (dsim->pd->platform_rev == 1)
> + s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
> + else
> + s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
> +
> + /* enable byte clk and escape clock */
> + s5p_dsim_set_esc_clk_prs(dsim, 1, esc_div);
> + /* escape clock on lane */
> + s5p_dsim_enable_esc_clk_on_lane(dsim,
> + (DSIM_LANE_CLOCK | dsim->data_lane), 1);
> +
> + dev_dbg(dsim->dev, "byte clock is %luMHz\n",
> + (dsim->byte_clk / 1000000));
> + dev_dbg(dsim->dev, "escape clock that user's need is %lu\n",
> + (dsim->dsim_info->esc_clk / 1000000));
> + dev_dbg(dsim->dev, "escape clock divider is %x\n", esc_div);
> + dev_dbg(dsim->dev, "escape clock is %luMHz\n",
> + ((dsim->byte_clk / esc_div) / 1000000));
> +
> + if ((dsim->byte_clk / esc_div) > dsim->escape_clk) {
> + esc_clk_error_rate = dsim->escape_clk /
> + (dsim->byte_clk / esc_div);
> + dev_warn(dsim->dev, "error rate is %lu over.\n",
> + (esc_clk_error_rate / 100));
> + } else if ((dsim->byte_clk / esc_div) < (dsim->escape_clk)) {
> + esc_clk_error_rate = (dsim->byte_clk / esc_div) /
> + dsim->escape_clk;
> + dev_warn(dsim->dev, "error rate is %lu under.\n",
> + (esc_clk_error_rate / 100));
> + }
> + } else {
> + s5p_dsim_enable_esc_clk_on_lane(dsim,
> + (DSIM_LANE_CLOCK | dsim->data_lane), 0);
> + s5p_dsim_set_esc_clk_prs(dsim, 0, 0);
> +
> + /*
> + * in case of evt0, DSIM_FALSE is disable and
> + * DSIM_TRUE is disable for evt1.
> + */
> + if (dsim->pd->platform_rev == 1)
> + s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
> + else
> + s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
> +
> + if (byte_clk_sel == DSIM_PLL_OUT_DIV8)
> + s5p_dsim_pll_on(dsim, 0);
> + }
> +
> + return 0;
> +}
> +
> +int s5p_dsim_init_dsim(struct dsim_global *dsim)
> +{
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + if (dsim->pd->init_d_phy)
> + dsim->pd->init_d_phy(dsim);
> +
> + dsim->state = DSIM_STATE_RESET;
> +
> + switch (dsim->dsim_info->e_no_data_lane) {
> + case DSIM_DATA_LANE_1:
> + dsim->data_lane = DSIM_LANE_DATA0;
> + break;
> + case DSIM_DATA_LANE_2:
> + dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1;
> + break;
> + case DSIM_DATA_LANE_3:
> + dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
> + DSIM_LANE_DATA2;
> + break;
> + case DSIM_DATA_LANE_4:
> + dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
> + DSIM_LANE_DATA2 | DSIM_LANE_DATA3;
> + break;
> + default:
> + dev_info(dsim->dev, "data lane is invalid.\n");
> + return -EINVAL;
> + };
> +
> + s5p_dsim_init_header_fifo(dsim);
> + s5p_dsim_sw_reset(dsim);
> + s5p_dsim_dp_dn_swap(dsim, dsim->dsim_info->e_lane_swap);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim, int enable)
> +{
> + /* enable only frame done interrupt */
> + s5p_dsim_set_interrupt_mask(dsim, INTMSK_FRAME_DONE, enable);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_set_display_mode(struct dsim_global *dsim,
> + struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
> +{
> + struct fb_videomode *mlcd_video = NULL;
> + struct fb_cmdmode *mlcd_command = NULL;
> + struct s3c_fb_pd_win *pd;
> + unsigned int width = 0, height = 0;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + pd = (struct s3c_fb_pd_win *)main_lcd->lcd_panel_info;
> +
> + /* in case of VIDEO MODE (RGB INTERFACE) */
> + if (dsim->dsim_lcd_info->e_interface == (u32) DSIM_VIDEO) {
> + mlcd_video = (struct fb_videomode *)&pd->win_mode;
> + width = mlcd_video->xres;
> + height = mlcd_video->yres;
> +
> + if (dsim->dsim_info->auto_vertical_cnt == DSIM_FALSE) {
> + s5p_dsim_set_main_disp_vporch(dsim,
> + mlcd_video->upper_margin,
> + mlcd_video->lower_margin, 0);
> + s5p_dsim_set_main_disp_hporch(dsim,
> + mlcd_video->left_margin,
> + mlcd_video->right_margin);
> + s5p_dsim_set_main_disp_sync_area(dsim,
> + mlcd_video->vsync_len,
> + mlcd_video->hsync_len);
> + }
> + } else { /* in case of COMMAND MODE (CPU or I80 INTERFACE) */
> + mlcd_command = (struct fb_cmdmode *)&pd->cmd_mode;
> + width = mlcd_command->xres;
> + height = mlcd_command->yres;
> + }
> +
> + s5p_dsim_set_main_disp_resol(dsim, height, width);
> +
> + if (sub_lcd != NULL)
> + dev_warn(dsim->dev, "sub lcd isn't supported yet.\n");
> +
> + s5p_dsim_display_config(dsim, dsim->dsim_lcd_info, NULL);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_init_link(struct dsim_global *dsim)
> +{
> + unsigned int time_out = 100;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + switch (dsim->state) {
> + case DSIM_STATE_RESET:
> + s5p_dsim_sw_reset(dsim);
> + case DSIM_STATE_INIT:
> + s5p_dsim_init_fifo_pointer(dsim, 0x1f);
> +
> + /* dsi configuration */
> + s5p_dsim_init_config(dsim, dsim->dsim_lcd_info,
> + NULL, dsim->dsim_info);
> + s5p_dsim_enable_lane(dsim, DSIM_LANE_CLOCK, 1);
> + s5p_dsim_enable_lane(dsim, dsim->data_lane, 1);
> +
> + /* set clock configuration */
> + s5p_dsim_set_clock(dsim, dsim->dsim_info->e_byte_clk,
> + 1);
> +
> + /* check clock and data lane state is stop state */
> + while (!(s5p_dsim_is_lane_state(dsim, DSIM_LANE_CLOCK)
> + == DSIM_LANE_STATE_STOP) &&
> + !(s5p_dsim_is_lane_state(dsim,
> + dsim->data_lane) == DSIM_LANE_STATE_STOP)) {
> + time_out--;
> + if (time_out == 0) {
> + dev_info(dsim->dev,
> + "DSI Master is not stop state.\n");
> + dev_info(dsim->dev,
> + "Check initialization process\n");
> +
> + return -EINVAL;
> + }
> + }
> +
> + if (time_out != 0) {
> + dev_info(dsim->dev,
> + "initialization of DSI Master is successful\n");
> + dev_info(dsim->dev, "DSI Master state is stop state\n");
> + }
> +
> + dsim->state = DSIM_STATE_STOP;
> +
> + /* BTA sequence counters */
> + s5p_dsim_set_stop_state_counter(dsim,
> + dsim->dsim_info->stop_holding_cnt);
> + s5p_dsim_set_bta_timeout(dsim,
> + dsim->dsim_info->bta_timeout);
> + s5p_dsim_set_lpdr_timeout(dsim,
> + dsim->dsim_info->rx_timeout);
> +
> + /* default LPDT by both cpu and lcd controller */
> + s5p_dsim_set_data_mode(dsim, DSIM_TRANSFER_BOTH,
> + DSIM_STATE_STOP);
> +
> + return 0;
> + default:
> + dev_info(dsim->dev, "DSI Master is already init.\n");
> + return 0;
> + }
> +
> + return 0;
> +}
> +
> +int s5p_dsim_set_hs_enable(struct dsim_global *dsim)
> +{
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + if (dsim->state == DSIM_STATE_STOP) {
> + if (dsim->e_clk_src != DSIM_EXT_CLK_BYPASS) {
> + dsim->state = DSIM_STATE_HSCLKEN;
> + s5p_dsim_set_data_mode(dsim,
> + DSIM_TRANSFER_BOTH, DSIM_STATE_HSCLKEN);
> + s5p_dsim_enable_hs_clock(dsim, 1);
> +
> + return 0;
> + } else
> + dev_warn(dsim->dev,
> + "clock source is external bypass.\n");
> + } else
> + dev_warn(dsim->dev, "DSIM is not stop state.\n");
> +
> + return 0;
> +}
> +
> +int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
> + unsigned char data_path, unsigned char hs_enable)
> +{
> + int ret = -1;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + if (hs_enable) {
> + if (dsim->state == DSIM_STATE_HSCLKEN) {
> + s5p_dsim_set_data_mode(dsim, data_path,
> + DSIM_STATE_HSCLKEN);
> + ret = 0;
> + } else {
> + dev_err(dsim->dev, "HS Clock lane is not enabled.\n");
> + ret = -EINVAL;
> + }
> + } else {
> + if (dsim->state == DSIM_STATE_INIT || dsim->state ==
> + DSIM_STATE_ULPS) {
> + dev_err(dsim->dev,
> + "DSI Master is not STOP or HSDT state.\n");
> + ret = -EINVAL;
> + } else {
> + s5p_dsim_set_data_mode(dsim, data_path,
> + DSIM_STATE_STOP);
> + ret = 0;
> + }
> + }
> +
> + return ret;
> +}
> +
> +int s5p_dsim_get_frame_done_status(void *dsim_data)
> +{
> + struct dsim_global *dsim = NULL;
> +
> + dsim = (struct dsim_global *)dsim_data;
> +
> + if (dsim == NULL) {
> + dev_err(dsim->dev, "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + return _s5p_dsim_get_frame_done_status(dsim);
> +}
> +
> +int s5p_dsim_clear_frame_done(void *dsim_data)
> +{
> + struct dsim_global *dsim = NULL;
> +
> + dsim = (struct dsim_global *)dsim_data;
> +
> + if (dsim == NULL) {
> + dev_err(dsim->dev, "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + _s5p_dsim_clear_frame_done(dsim);
> +
> + return 0;
> +}
> +
> +MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
> +MODULE_DESCRIPTION("Samusung MIPI-DSIM common driver");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/video/s5p_dsim_common.h b/drivers/video/s5p_dsim_common.h
> new file mode 100644
> index 0000000..deefca1
> --- /dev/null
> +++ b/drivers/video/s5p_dsim_common.h
> @@ -0,0 +1,38 @@
> +/* linux/drivers/video/samsung/s5p_dsim_common.h
> + *
> + * Header file for Samsung MIPI-DSI common driver.
> + *
> + * Copyright (c) 2009 Samsung Electronics
> + * InKi Dae <inki.dae@samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +#ifndef _S5P_DSIM_COMMON_H
> +#define _S5P_DSIM_COMMON_H
> +
> +extern int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
> + unsigned int data0, unsigned int data1);
> +extern int s5p_dsim_init_header_fifo(struct dsim_global *dsim);
> +extern int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned char enable);
> +extern unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
> + unsigned char pre_divider, unsigned short main_divider,
> + unsigned char scaler);
> +extern int s5p_dsim_set_clock(struct dsim_global *dsim,
> + unsigned char byte_clk_sel, unsigned char enable);
> +extern int s5p_dsim_init_dsim(struct dsim_global *dsim);
> +extern int s5p_dsim_set_display_mode(struct dsim_global *dsim,
> + struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd);
> +extern int s5p_dsim_init_link(struct dsim_global *dsim);
> +extern int s5p_dsim_set_hs_enable(struct dsim_global *dsim);
> +extern int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
> + unsigned char data_path, unsigned char hs_enable);
> +extern int s5p_dsim_get_frame_done_status(void *dsim_data);
> +extern int s5p_dsim_clear_frame_done(void *dsim_data);
> +extern int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim, int enable);
> +
> +extern struct fb_info *registered_fb[FB_MAX] __read_mostly;
> +
> +#endif /* _S5P_DSIM_COMMON_H */
> diff --git a/drivers/video/s5p_dsim_lowlevel.c b/drivers/video/s5p_dsim_lowlevel.c
> new file mode 100644
> index 0000000..6a27395
> --- /dev/null
> +++ b/drivers/video/s5p_dsim_lowlevel.c
> @@ -0,0 +1,562 @@
> +/* linux/drivers/video/samsung/s5p-dsim.c
> + *
> + * Samsung MIPI-DSIM lowlevel driver.
> + *
> + * InKi Dae, <inki.dae@samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +#include <linux/module.h>
> +#include <linux/kernel.h>
> +#include <linux/errno.h>
> +#include <linux/mutex.h>
> +#include <linux/wait.h>
> +#include <linux/delay.h>
> +#include <linux/fs.h>
> +#include <linux/mm.h>
> +#include <linux/ctype.h>
> +#include <linux/io.h>
> +
> +#include <mach/map.h>
> +
> +#include <plat/dsim.h>
> +#include <plat/mipi_ddi.h>
> +#include <plat/regs-dsim.h>
> +
> +void s5p_dsim_func_reset(struct dsim_global *dsim)
> +{
> + unsigned int cfg = 0;
> +
> + cfg = DSIM_FUNCRST;
> +
> + writel(cfg, dsim->reg_base + S5P_DSIM_SWRST);
> +}
so much easier to do
writel(DSIM_FUNCRST, dsim->reg_base + S5P_DSIM_SWRST);
much less space needed.
> +void s5p_dsim_sw_reset(struct dsim_global *dsim)
> +{
> + unsigned int cfg = 0;
> +
> + cfg = DSIM_SWRST;
> +
> + writel(cfg, dsim->reg_base + S5P_DSIM_SWRST);
> +}
> +
> +void s5p_dsim_set_interrupt_mask(struct dsim_global *dsim, unsigned int mode,
> + unsigned int mask)
> +{
bool for mask.
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTMSK);
> +
> + if (mask)
> + reg |= mode;
> + else
> + reg &= ~(mode);
no need for () around mode.
> + writel(reg, dsim->reg_base + S5P_DSIM_INTMSK);
> +}
> +
> +void s5p_dsim_init_fifo_pointer(struct dsim_global *dsim, unsigned char cfg)
> +{
> + unsigned int reg;
> +
> + reg = readl(dsim->reg_base + S5P_DSIM_FIFOCTRL);
> +
> + writel(reg & ~(cfg), dsim->reg_base + S5P_DSIM_FIFOCTRL);
> + mdelay(10);
> + reg |= cfg;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_FIFOCTRL);
> +}
> +
> +/*
> + * this function set PLL P, M and S value in D-PHY
> + */
> +void s5p_dsim_set_phy_tunning(struct dsim_global *dsim, unsigned int value)
> +{
> + writel(DSIM_AFC_CTL(value), dsim->reg_base + S5P_DSIM_PHYACCHR);
> +}
> +
> +void s5p_dsim_set_main_disp_resol(struct dsim_global *dsim,
> + unsigned short vert_resol, unsigned short hori_resol)
> +{
> + unsigned int reg;
> +
> + /* standby should be set after configuration so set to not ready*/
> + reg = (readl(dsim->reg_base + S5P_DSIM_MDRESOL)) &
> + ~(DSIM_MAIN_STAND_BY);
> + writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
> +
> + reg &= ~(0x7ff << 16) & ~(0x7ff << 0);
> + reg |= DSIM_MAIN_VRESOL(vert_resol) | DSIM_MAIN_HRESOL(hori_resol);
> +
> + reg |= DSIM_MAIN_STAND_BY;
> + writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
> +}
> +
> +void s5p_dsim_set_main_disp_vporch(struct dsim_global *dsim,
> + unsigned int cmd_allow, unsigned int vfront, unsigned int vback)
> +{
> + unsigned int reg;
> +
> + reg = (readl(dsim->reg_base + S5P_DSIM_MVPORCH)) &
> + ~(DSIM_CMD_ALLOW_MASK) & ~(DSIM_STABLE_VFP_MASK) &
> + ~(DSIM_MAIN_VBP_MASK);
> +
> + reg |= ((cmd_allow & 0xf) << DSIM_CMD_ALLOW_SHIFT) |
> + ((vfront & 0x7ff) << DSIM_STABLE_VFP_SHIFT) |
> + ((vback & 0x7ff) << DSIM_MAIN_VBP_SHIFT);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_MVPORCH);
> +}
> +
> +void s5p_dsim_set_main_disp_hporch(struct dsim_global *dsim,
> + unsigned short front, unsigned short back)
> +{
> + unsigned int reg;
> +
> + reg = (readl(dsim->reg_base + S5P_DSIM_MHPORCH)) &
> + ~(DSIM_MAIN_HFP_MASK) & ~(DSIM_MAIN_HBP_MASK);
> +
> + reg |= (front << DSIM_MAIN_HFP_SHIFT) | (back << DSIM_MAIN_HBP_SHIFT);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_MHPORCH);
> +}
> +
> +void s5p_dsim_set_main_disp_sync_area(struct dsim_global *dsim,
> + unsigned short vert, unsigned short hori)
> +{
> + unsigned int reg;
> +
> + reg = (readl(dsim->reg_base + S5P_DSIM_MSYNC)) &
> + ~(DSIM_MAIN_VSA_MASK) & ~(DSIM_MAIN_HSA_MASK);
> +
> + reg |= ((vert & 0x3ff) << DSIM_MAIN_VSA_SHIFT) |
> + (hori << DSIM_MAIN_HSA_SHIFT);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_MSYNC);
> +}
> +
> +void s5p_dsim_set_sub_disp_resol(struct dsim_global *dsim,
> + unsigned short vert, unsigned short hori)
> +{
> + unsigned int reg;
> +
> + reg = (readl(dsim->reg_base + S5P_DSIM_SDRESOL)) &
> + ~(DSIM_SUB_STANDY_MASK);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
> +
> + reg &= ~(DSIM_SUB_VRESOL_MASK) | ~(DSIM_SUB_HRESOL_MASK);
> + reg |= ((vert & 0x7ff) << DSIM_SUB_VRESOL_SHIFT) |
> + ((hori & 0x7ff) << DSIM_SUB_HRESOL_SHIFT);
> + writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
> +
> + reg |= (1 << DSIM_SUB_STANDY_SHIFT);
> + writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
> +}
> +
> +void s5p_dsim_init_config(struct dsim_global *dsim,
> + struct dsim_lcd_config *main_lcd_info,
> + struct dsim_lcd_config *sub_lcd_info, struct dsim_config *dsim_info)
> +{
> + unsigned int cfg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
> + ~(1 << 28) & ~(0x1f << 20) & ~(0x3 << 5);
> +
> + cfg = (dsim_info->auto_flush << 29) |
> + (dsim_info->eot_disable << 28) |
> + (dsim_info->auto_vertical_cnt << DSIM_AUTO_MODE_SHIFT) |
> + (dsim_info->hse << DSIM_HSE_MODE_SHIFT) |
> + (dsim_info->hfp << DSIM_HFP_MODE_SHIFT) |
> + (dsim_info->hbp << DSIM_HBP_MODE_SHIFT) |
> + (dsim_info->hsa << DSIM_HSA_MODE_SHIFT) |
> + (dsim_info->e_no_data_lane << DSIM_NUM_OF_DATALANE_SHIFT);
> +
> + writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
> +}
> +
> +void s5p_dsim_display_config(struct dsim_global *dsim,
> + struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
> +{
> + u32 reg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
> + ~(0x3 << 26) & ~(1 << 25) & ~(0x3 << 18) & ~(0x7 << 12) &
> + ~(0x3 << 16) & ~(0x7 << 8);
> +
> + if (main_lcd->e_interface == DSIM_VIDEO)
> + reg |= (1 << 25);
> + else if (main_lcd->e_interface == DSIM_COMMAND)
> + reg &= ~(1 << 25);
> + else {
> + dev_err(dsim->dev, "this ddi is not MIPI interface.\n");
> + return;
> + }
> +
> + /* main lcd */
> + reg |= ((u8) (main_lcd->parameter[DSI_VIDEO_MODE_SEL]) & 0x3) << 26 |
> + ((u8) (main_lcd->parameter[DSI_VIRTUAL_CH_ID]) & 0x3) << 18 |
> + ((u8) (main_lcd->parameter[DSI_FORMAT]) & 0x7) << 12;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
> +}
> +
> +void s5p_dsim_enable_lane(struct dsim_global *dsim, unsigned char lane,
> + unsigned char enable)
> +{
> + unsigned int reg;
> +
> + reg = readl(dsim->reg_base + S5P_DSIM_CONFIG);
> +
> + if (lane == DSIM_LANE_CLOCK) {
> + if (enable)
> + reg |= (1 << 0);
> + else
> + reg &= ~(1 << 0);
> + } else {
> + if (enable)
> + reg |= (lane << 1);
> + else
> + reg &= ~(lane << 1);
> + }
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
> +}
> +
> +
> +void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
> + unsigned char count)
> +{
> + unsigned int cfg = 0;
> +
> + /* get the data lane number. */
> + cfg = DSIM_NUM_OF_DATA_LANE(count);
> +
> + writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
> +}
> +
> +void s5p_dsim_enable_afc(struct dsim_global *dsim, unsigned char enable,
> + unsigned char afc_code)
> +{
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PHYACCHR);
> +
> + if (enable) {
> + reg |= (1 << 14);
> + reg &= ~(0x7 << 5);
> + reg |= (afc_code & 0x7) << 5;
> + } else
> + reg &= ~(1 << 14);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_PHYACCHR);
> +}
> +
> +void s5p_dsim_enable_pll_bypass(struct dsim_global *dsim,
> + unsigned char enable)
unsigned int enable.
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
> + ~(DSIM_PLL_BYPASS_EXTERNAL);
> +
> + reg |= enable << DSIM_PLL_BYPASS_SHIFT;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
> +}
> +
> +void s5p_dsim_set_pll_pms(struct dsim_global *dsim, unsigned char p,
> + unsigned short m, unsigned short s)
> +{
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PLLCTRL);
> +
> + reg |= ((p & 0x3f) << 13) | ((m & 0x1ff) << 4) | ((s & 0x7) << 1);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
> +}
> +
> +void s5p_dsim_pll_freq_band(struct dsim_global *dsim, unsigned char freq_band)
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
> + ~(0x1f << DSIM_FREQ_BAND_SHIFT);
> +
> + reg |= ((freq_band & 0x1f) << DSIM_FREQ_BAND_SHIFT);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
> +}
> +
> +void s5p_dsim_pll_freq(struct dsim_global *dsim, unsigned char pre_divider,
> + unsigned short main_divider, unsigned char scaler)
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
> + ~(0x7ffff << 1);
> +
> + reg |= (pre_divider & 0x3f) << 13 | (main_divider & 0x1ff) << 4 |
> + (scaler & 0x7) << 1;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
> +}
> +
> +void s5p_dsim_pll_stable_time(struct dsim_global *dsim,
> + unsigned int lock_time)
> +{
> + writel(lock_time, dsim->reg_base + S5P_DSIM_PLLTMR);
> +}
> +
> +void s5p_dsim_enable_pll(struct dsim_global *dsim, unsigned char enable)
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
> + ~(0x1 << DSIM_PLL_EN_SHIFT);
> +
> + reg |= ((enable & 0x1) << DSIM_PLL_EN_SHIFT);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
> +}
> +
> +void s5p_dsim_set_byte_clock_src(struct dsim_global *dsim, unsigned char src)
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
> + ~(0x3 << DSIM_BYTE_CLK_SRC_SHIFT);
> +
> + reg |= ((unsigned int) src) << DSIM_BYTE_CLK_SRC_SHIFT;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
> +}
> +
> +void s5p_dsim_enable_byte_clock(struct dsim_global *dsim,
> + unsigned char enable)
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
> + ~(1 << DSIM_BYTE_CLKEN_SHIFT);
> +
> + reg |= enable << DSIM_BYTE_CLKEN_SHIFT;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
> +}
> +
> +void s5p_dsim_set_esc_clk_prs(struct dsim_global *dsim, unsigned char enable,
> + unsigned short prs_val)
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
> + ~(1 << DSIM_ESC_CLKEN_SHIFT) & ~(0xffff);
> +
> + reg |= enable << DSIM_ESC_CLKEN_SHIFT;
> + if (enable)
> + reg |= prs_val;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
> +}
> +
> +void s5p_dsim_enable_esc_clk_on_lane(struct dsim_global *dsim,
> + unsigned char lane_sel, unsigned char enable)
> +{
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_CLKCTRL);
> +
> + if (enable) {
> + if (lane_sel & DSIM_LANE_CLOCK)
> + reg |= 1 << DSIM_LANE_ESC_CLKEN_SHIFT;
> + if (lane_sel & DSIM_LANE_DATA0)
> + reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1);
> + if (lane_sel & DSIM_LANE_DATA1)
> + reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2);
> + if (lane_sel & DSIM_LANE_DATA2)
> + reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3);
> + if (lane_sel & DSIM_LANE_DATA2)
> + reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4);
> + } else {
> + if (lane_sel & DSIM_LANE_CLOCK)
> + reg &= ~(1 << DSIM_LANE_ESC_CLKEN_SHIFT);
> + if (lane_sel & DSIM_LANE_DATA0)
> + reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1));
> + if (lane_sel & DSIM_LANE_DATA1)
> + reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2));
> + if (lane_sel & DSIM_LANE_DATA2)
> + reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3));
> + if (lane_sel & DSIM_LANE_DATA2)
> + reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4));
> + }
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
> +}
> +
> +
> +void s5p_dsim_clear_interrupt(struct dsim_global *dsim, unsigned int int_src)
> +{
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
> +
> + reg |= int_src;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_INTSRC);
> +}
>
> +unsigned char s5p_dsim_is_pll_stable(struct dsim_global *dsim)
> +{
> + return (unsigned char) ((readl(dsim->reg_base + S5P_DSIM_STATUS) &
> + (1 << 31)) >> 31);
> +}
do you really need to be casting to an unsigned char?
sure the code would be more efficient if you simply return an unsigned
int.
Either >> 31 the result (hint, it'll be the only bit left) or use
the & (1 << 31) and return the result (non-zero generally regarded as true).
> +
> +unsigned int s5p_dsim_get_fifo_state(struct dsim_global *dsim)
> +{
> + unsigned int ret = 0;
> +
> + ret = (readl(dsim->reg_base + S5P_DSIM_FIFOCTRL) & ~(0x1f));
> +
> + return ret;
> +}
again, no need for intermediate variable and certianly no need to init
it before assinging it.
> +
> +void s5p_dsim_wr_tx_header(struct dsim_global *dsim,
> + unsigned char di, unsigned char data0, unsigned char data1)
> +{
> + unsigned int reg = (data1 << 16) | (data0 << 8) | ((di & 0x3f) << 0);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_PKTHDR);
> +}
> +
> +unsigned int _s5p_dsim_get_frame_done_status(struct dsim_global *dsim)
> +{
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
> +
> + return (reg & INTSRC_FRAME_DONE) ? 1 : 0;
> +}
> +
> +void _s5p_dsim_clear_frame_done(struct dsim_global *dsim)
> +{
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
> +
> + writel(reg | INTSRC_FRAME_DONE, dsim->reg_base +
> + S5P_DSIM_INTSRC);
> +}
> +
> +void s5p_dsim_wr_tx_data(struct dsim_global *dsim, unsigned int tx_data)
> +{
> + writel(tx_data, dsim->reg_base + S5P_DSIM_PAYLOAD);
> +}
> diff --git a/drivers/video/s5p_dsim_lowlevel.h b/drivers/video/s5p_dsim_lowlevel.h
> new file mode 100644
> index 0000000..ff950ba
> --- /dev/null
> +++ b/drivers/video/s5p_dsim_lowlevel.h
> @@ -0,0 +1,101 @@
> +/* linux/drivers/video/samsung/s5p_dsim_lowlevel.h
> + *
> + * Header file for Samsung MIPI-DSIM lowlevel driver.
> + *
> + * Copyright (c) 2009 Samsung Electronics
> + * InKi Dae <inki.dae@samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +#ifndef _S5P_DSIM_LOWLEVEL_H
> +#define _S5P_DSIM_LOWLEVEL_H
> +
> +struct dsim_global;
> +
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH 2/2] S5PV210: Add MIPI-DSI Driver.
@ 2010-07-02 14:03 ` Ben Dooks
0 siblings, 0 replies; 30+ messages in thread
From: Ben Dooks @ 2010-07-02 14:03 UTC (permalink / raw)
To: linux-arm-kernel
On 02/07/10 09:51, InKi Dae wrote:
> this patch addes MIPI-DSI Driver.
>
> to use this driver, some structures below should be added to machine
> specific file.
>
> struct dsim_config
> - define clock info, data lane count and video mode info for MIPI-DSI
> Controller.
>
> struct dsim_lcd_config
> - define interface mode, channel ID, Pixel format and so on.
>
> struct s5p_platform_dsim
> - define callbacks for initializing D-PHY, MIPI reset and trigger
> releated interfaces of s3c-fb.c file.
>
> Signed-off-by: InKi Dae <inki.dae at samsung.com <mailto:p.osciak@samsung.com>>
> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com
> <mailto:kyungmin.park@samsung.com>>
> ---
>
> diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
> index 2a25ab4..f716678 100644
> --- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
> +++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
> @@ -162,6 +162,7 @@
>
> /* MIPI */
> #define S5P_MIPI_DPHY_EN (3)
> +#define S5P_MIPI_M_RESETN (1 << 1)
>
> /* S5P_DAC_CONTROL */
> #define S5P_DAC_ENABLE (1)
> diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
> index b1d82cc..3cd43f2 100644
> --- a/arch/arm/plat-samsung/Makefile
> +++ b/arch/arm/plat-samsung/Makefile
> @@ -49,6 +49,9 @@ obj-$(CONFIG_S3C_DEV_RTC) += dev-rtc.o
> obj-$(CONFIG_SAMSUNG_DEV_ADC) += dev-adc.o
> obj-$(CONFIG_SAMSUNG_DEV_TS) += dev-ts.o
>
> +# Device setup - MIPI-DSI
> +obj-$(CONFIG_S5P_MIPI_DSI) += setup-dsim.o
> +
> # DMA support
>
> obj-$(CONFIG_S3C_DMA) += dma.o
> diff --git a/arch/arm/plat-samsung/include/plat/dsim.h b/arch/arm/plat-samsung/include/plat/dsim.h
> new file mode 100644
> index 0000000..28bc595
> --- /dev/null
> +++ b/arch/arm/plat-samsung/include/plat/dsim.h
> @@ -0,0 +1,470 @@
> + * driver structure for mipi-dsi based lcd panel.
> + *
> + * this structure should be registered by lcd panel driver.
> + * mipi-dsi driver seeks lcd panel registered through name field
> + * and calls these callback functions in appropriate time.
> + */
> +struct mipi_lcd_driver {
> + s8 name[64];
how about an 'char *' here instead of reserving 64bytes?
> + s32 (*init)(struct device *dev);
> + void (*display_on)(struct device *dev);
> + s32 (*set_link)(struct mipi_ddi_platform_data *pd);
> + s32 (*probe)(struct device *dev);
> + s32 (*remove)(struct device *dev);
> + void (*shutdown)(struct device *dev);
> + s32 (*suspend)(struct device *dev, pm_message_t mesg);
> + s32 (*resume)(struct device *dev);
> +};
Some of this should be already covered under the existing
lcd interface?
> diff --git a/arch/arm/plat-samsung/include/plat/mipi_ddi.h b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
> new file mode 100644
> index 0000000..57ed613
> --- /dev/null
> +++ b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
> @@ -0,0 +1,98 @@
> +/* linux/arm/arch/mach-s5pc110/include/mach/mipi_ddi.h
> + *
> + * definitions for DDI based MIPI-DSI.
> + *
> + * Copyright (c) 2009 Samsung Electronics
> + * InKi Dae <inki.dae@samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +#ifndef _MIPI_DDI_H
> +#define _MIPI_DDI_H
> +
> +enum mipi_ddi_interface {
> + RGB_IF = 0x4000,
> + I80_IF = 0x8000,
> + YUV_601 = 0x10000,
> + YUV_656 = 0x20000,
> + MIPI_VIDEO = 0x1000,
> + MIPI_COMMAND = 0x2000,
> +};
> +
> +enum mipi_ddi_panel_select {
> + DDI_MAIN_LCD = 0,
> + DDI_SUB_LCD = 1,
> +};
> +
> +enum mipi_ddi_model {
> + S6DR117 = 0,
> +};
> +
> +enum mipi_ddi_parameter {
> + /* DSIM video interface parameter */
> + DSI_VIRTUAL_CH_ID = 0,
> + DSI_FORMAT = 1,
> + DSI_VIDEO_MODE_SEL = 2,
> +};
> +
> +struct lcd_device;
> +struct fb_info;
> +
> +struct mipi_ddi_platform_data {
> + void *dsim_data;
> + /*
> + * it is used for command mode lcd panel and
> + * when all contents of framebuffer in panel module are transfered
> + * to lcd panel it occurs te signal.
> + *
> + * note:
> + * - in case of command mode(cpu mode), it should be triggered only
> + * when TE signal of lcd panel and frame done interrupt of display
> + * controller or mipi controller occurs.
> + */
> + unsigned int te_irq;
> +
> + /*
> + * it is used for PM stable time at te interrupt handler and
> + * could be used according to lcd panel characteristic or not.
> + */
> + unsigned int resume_complete;
> +
> + int (*lcd_reset) (struct lcd_device *ld);
> + int (*lcd_power_on) (struct lcd_device *ld, int enable);
> + int (*backlight_on) (int enable);
> +
> + /* transfer command to lcd panel at LP mode. */
> + int (*cmd_write) (void *dsim_data, unsigned int data_id,
> + unsigned int data0, unsigned int data1);
> + int (*cmd_read) (void *dsim_data, unsigned int data_id,
> + unsigned int data0, unsigned int data1);
> + /*
> + * get the status that all screen data have been transferred
> + * to mipi-dsi.
> + */
> + int (*get_dsim_frame_done) (void *dsim_data);
> + int (*clear_dsim_frame_done) (void *dsim_data);
> +
> + /*
> + * changes mipi transfer mode to LP or HS mode.
> + *
> + * LP mode needs when some commands like gamma values transfers
> + * to lcd panel.
> + */
> + int (*change_dsim_transfer_mode) (int mode);
> +
> + /* get frame done status of display controller. */
> + int (*get_fb_frame_done) (struct fb_info *info);
> + /* trigger display controller in case of cpu mode. */
> + void (*trigger) (struct fb_info *info);
> +
> + unsigned int reset_delay;
> + unsigned int power_on_delay;
> + unsigned int power_off_delay;
> +};
> +
> +#endif /* _MIPI_DDI_H */
> diff --git a/arch/arm/plat-samsung/include/plat/regs-dsim.h b/arch/arm/plat-samsung/include/plat/regs-dsim.h
> new file mode 100644
> index 0000000..dc83089
> --- /dev/null
> +++ b/arch/arm/plat-samsung/include/plat/regs-dsim.h
> @@ -0,0 +1,281 @@
+
> +/* S5P_DSIM_TIMEOUT */
> +#define DSIM_LPDR_TOUT_SHIFT (0)
> +#define DSIM_BTA_TOUT_SHIFT (16)
> +#define DSIM_LPDR_TOUT(x) (((x) & 0xffff) << DSIM_LPDR_TOUT_SHIFT)
> +#define DSIM_BTA_TOUT(x) (((x) & 0xff) << DSIM_BTA_TOUT_SHIFT)
> +
> +/* S5P_DSIM_CLKCTRL */
> +#define DSIM_ESC_PRESCALER_SHIFT (0)
> +#define DSIM_LANE_ESC_CLKEN_SHIFT (19)
> +#define DSIM_BYTE_CLKEN_SHIFT (24)
> +#define DSIM_BYTE_CLK_SRC_SHIFT (25)
> +#define DSIM_PLL_BYPASS_SHIFT (27)
> +#define DSIM_ESC_CLKEN_SHIFT (28)
> +#define DSIM_TX_REQUEST_HSCLK_SHIFT (31)
> +#define DSIM_ESC_PRESCALER(x) (((x) & 0xffff) << \
> + DSIM_ESC_PRESCALER_SHIFT)
> +#define DSIM_LANE_ESC_CLKEN(x) (((x) & 0x1f) << \
> + DSIM_LANE_ESC_CLKEN_SHIFT)
> +#define DSIM_BYTE_CLK_ENABLE (1 << DSIM_BYTE_CLKEN_SHIFT)
> +#define DSIM_BYTE_CLK_DISABLE (0 << DSIM_BYTE_CLKEN_SHIFT)
> +#define DSIM_BYTE_CLKSRC(x) (((x) & 0x3) << DSIM_BYTE_CLK_SRC_SHIFT)
> +#define DSIM_PLL_BYPASS_PLL (0 << DSIM_PLL_BYPASS_SHIFT)
> +#define DSIM_PLL_BYPASS_EXTERNAL (1 << DSIM_PLL_BYPASS_SHIFT)
> +#define DSIM_ESC_CLKEN_ENABLE (1 << DSIM_ESC_CLKEN_SHIFT)
> +#define DSIM_ESC_CLKEN_DISABLE (0 << DSIM_ESC_CLKEN_SHIFT)
> +
> +#include <plat/dsim.h>
> +#include <plat/clock.h>
> +#include <plat/regs-dsim.h>
> +
> +static int s5p_dsim_enable_d_phy(struct dsim_global *dsim, unsigned int enable)
I suppose enable should be bool,
> +{
> + unsigned int reg;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim is NULL.\n");
> + return -EFAULT;
> + }
Is it likely to be NULL? If unlikely then a simple warning and return
-EFAULT.
> +
> + reg = (readl(S5P_MIPI_CONTROL)) & ~(1 << 0);
extra () not really needed
> + reg |= (enable << 0);
> + writel(reg, S5P_MIPI_CONTROL);
> +
> + dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
> +
> + return 0;
> +}
> +
> +static int s5p_dsim_enable_dsi_master(struct dsim_global *dsim,
> + unsigned int enable)
> +{
> + unsigned int reg;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim is NULL.\n");
> + return -EFAULT;
> + }
> +
> + reg = (readl(S5P_MIPI_CONTROL)) & ~(1 << 2);
> + reg |= (enable << 2);
> + writel(reg, S5P_MIPI_CONTROL);
> +
> + dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_part_reset(struct dsim_global *dsim)
> +{
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim is NULL.\n");
> + return -EFAULT;
> + }
> +
> + writel(S5P_MIPI_M_RESETN, S5P_MIPI_PHY_CON0);
> +
> + dev_dbg(dsim->dev, "%s\n", __func__);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_init_d_phy(struct dsim_global *dsim)
> +{
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim is NULL.\n");
> + return -EFAULT;
> + }
> +
> + /* enable D-PHY */
> + s5p_dsim_enable_d_phy(dsim, 1);
> +
> + /* enable DSI master block */
> + s5p_dsim_enable_dsi_master(dsim, 1);
you ould probably have omitted the comments on these.
> +
> + dev_dbg(dsim->dev, "%s\n", __func__);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_mipi_power(struct dsim_global *dsim, void *p_mipi_1_1v,
> + void *p_mipi_1_8v, int enable)
enable could be bool.
> +{
> + struct regulator *r_mipi_1_1v = NULL, *r_mipi_1_8v = NULL;
No need to init to NULL when you just cast them a few lines done.
> + int ret = -1;
> +
> + r_mipi_1_1v = (struct regulator *) p_mipi_1_1v;
> + r_mipi_1_8v = (struct regulator *) p_mipi_1_8v;
It would be better just to call these regulators and stick with one type
for these.
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim is NULL.\n");
> + return -EFAULT;
> + }
this is getting repetitive, is it really necessary?
> +
> + if (IS_ERR(r_mipi_1_1v) || IS_ERR(r_mipi_1_8v)) {
> + dev_err(dsim->dev, "r_mipi_1_1v or r_mipi_1_8v is NULL.\n");
> + return -EINVAL;
> + }
> +
> + if (enable) {
> + if (r_mipi_1_1v)
> + ret = regulator_enable(r_mipi_1_1v);
> +
> + if (ret < 0) {
> + dev_err(dsim->dev,
> + "failed to enable regulator mipi_1_1v.\n");
> + return ret;
> + }
> +
> + if (r_mipi_1_8v)
> + ret = regulator_enable(r_mipi_1_8v);
> +
> + if (ret < 0) {
> + dev_err(dsim->dev,
> + "failed to enable regulator mipi_1_8v.\n");
> + return ret;
> + }
> + } else {
> + if (r_mipi_1_1v)
> + ret = regulator_force_disable(r_mipi_1_1v);
> + if (ret < 0) {
> + dev_err(dsim->dev,
> + "failed to disable regulator mipi_1_1v.\n");
> + return ret;
> + }
> +
> + if (r_mipi_1_8v)
> + ret = regulator_force_disable(r_mipi_1_8v);
> + if (ret < 0) {
> + dev_err(dsim->dev,
> + "failed to disable regulator mipi_1_8v.\n");
> + return ret;
> + }
> + }
> +
> + return ret;
> +}
> diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
> index 3d94a14..c916ac1 100644
> --- a/drivers/video/Kconfig
> +++ b/drivers/video/Kconfig
> @@ -1930,7 +1930,7 @@ config FB_TMIO_ACCELL
>
> config FB_S3C
> tristate "Samsung S3C framebuffer support"
> - depends on FB && ARCH_S3C64XX
> + depends on FB && (ARCH_S3C64XX || ARCH_S5PV210)
> select FB_CFB_FILLRECT
> select FB_CFB_COPYAREA
> select FB_CFB_IMAGEBLIT
> @@ -1975,6 +1975,13 @@ config FB_S3C2410_DEBUG
> Turn on debugging messages. Note that you can set/unset at run time
> through sysfs
>
> +config S5P_MIPI_DSI
> + tristate "Samsung SoC MIPI-DSI support."
> + depends on FB_S3C && ARCH_S5PV210
> + default n
> + ---help---
> + This enables support for MIPI-DSI device.
> +
> config FB_NUC900
> bool "NUC900 LCD framebuffer support"
> depends on FB && ARCH_W90X900
> diff --git a/drivers/video/Makefile b/drivers/video/Makefile
> index ddc2af2..d841433 100644
> --- a/drivers/video/Makefile
> +++ b/drivers/video/Makefile
> @@ -115,6 +115,8 @@ obj-$(CONFIG_FB_SH7760) += sh7760fb.o
> obj-$(CONFIG_FB_IMX) += imxfb.o
> obj-$(CONFIG_FB_S3C) += s3c-fb.o
> obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o
> +obj-$(CONFIG_S5P_MIPI_DSI) += s5p-dsim.o s5p_dsim_common.o \
> + s5p_dsim_lowlevel.o
> obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o
> obj-$(CONFIG_FB_COBALT) += cobalt_lcdfb.o
> obj-$(CONFIG_FB_PNX4008_DUM) += pnx4008/
> diff --git a/drivers/video/s5p-dsim.c b/drivers/video/s5p-dsim.c
> new file mode 100644
> index 0000000..96893bc
> --- /dev/null
> +++ b/drivers/video/s5p-dsim.c
> @@ -0,0 +1,483 @@
> +/* linux/drivers/video/samsung/s5p-dsim.c
> + *
> + * Samsung MIPI-DSIM driver.
> + *
> + * InKi Dae, <inki.dae@samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +#include <linux/module.h>
> +#include <linux/kernel.h>
> +#include <linux/errno.h>
> +#include <linux/clk.h>
> +#include <linux/mutex.h>
> +#include <linux/wait.h>
> +#include <linux/fs.h>
> +#include <linux/mm.h>
> +#include <linux/fb.h>
> +#include <linux/ctype.h>
> +#include <linux/platform_device.h>
> +#include <linux/io.h>
> +#include <linux/irq.h>
> +#include <linux/memory.h>
> +#include <linux/delay.h>
> +#include <linux/interrupt.h>
> +#include <linux/kthread.h>
> +#include <linux/regulator/consumer.h>
> +#include <linux/notifier.h>
> +
> +#include <plat/fb.h>
> +#include <plat/regs-dsim.h>
> +#include <plat/dsim.h>
> +#include <plat/mipi_ddi.h>
> +
> +#include <mach/map.h>
> +
> +#include "s5p_dsim_common.h"
> +
> +struct mipi_lcd_info {
> + struct list_head list;
> + struct mipi_lcd_driver *mipi_drv;
> +};
> +
> +static LIST_HEAD(lcd_info_list);
> +static DEFINE_MUTEX(mipi_lock);
> +
> +struct dsim_global dsim;
> +
> +struct s5p_platform_dsim *to_dsim_plat(struct device *dev)
> +{
> + struct platform_device *pdev = to_platform_device(dev);
> +
> + return (struct s5p_platform_dsim *)pdev->dev.platform_data;
> +}
that's return dev->platform_data.
> +/*
> + * notifier callback function for fb_blank
> + * - this function would be called by device specific fb_blank.
> + */
> +static int s5p_dsim_notifier_callback(struct notifier_block *self,
> + unsigned long event, void *data)
> +{
> + pm_message_t pm;
> +
> + pm.event = 0;
do we really need to produce this pm structure.
> + switch (event) {
> + case FB_BLANK_UNBLANK:
> + case FB_BLANK_NORMAL:
> + if (dsim.pd->mipi_power)
> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
> + (void *) dsim.r_mipi_1_8v, 1);
> +
> + clk_enable(dsim.clock);
> +
> + if (dsim.mipi_drv->resume)
> + dsim.mipi_drv->resume(dsim.dev);
> +
> + s5p_dsim_init_dsim(&dsim);
> + s5p_dsim_init_link(&dsim);
> +
> + s5p_dsim_set_hs_enable(&dsim);
> + s5p_dsim_set_data_transfer_mode(&dsim,
> + DSIM_TRANSFER_BYCPU, 1);
> +
> + /* it needs delay for stabilization */
> + mdelay(dsim.pd->delay_for_stabilization);
> +
> + if (dsim.mipi_drv->init)
> + dsim.mipi_drv->init(dsim.dev);
> + else
> + dev_warn(dsim.dev, "init func is null.\n");
> +
> + s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
> +
> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
> + dsim.mipi_ddi_pd->resume_complete = 1;
> +
> + dev_dbg(dsim.dev, "FB_BLANK_NORMAL or UNBLANK.\n");
> +
> + break;
> + case FB_BLANK_POWERDOWN:
> + dsim.mipi_ddi_pd->resume_complete = 0;
> +
> + if (dsim.mipi_drv->suspend)
> + dsim.mipi_drv->suspend(dsim.dev, pm);
> +
> + clk_disable(dsim.clock);
> +
> + if (dsim.pd->mipi_power)
> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
> + (void *) dsim.r_mipi_1_8v, 0);
> +
> + dev_dbg(dsim.dev, "FB_BLANK_POWERDOWN.\n");
> + break;
> + default:
> + dev_warn(dsim.dev, "unknown FB_BLANK command.\n");
> + break;
> + }
> +
> + return 0;
> +}
> +
> +static int s5p_dsim_register_notif(struct device *dev)
> +{
> + memset(&dsim.s3cfb_notif, 0, sizeof(struct notifier_block));
> + dsim.s3cfb_notif.notifier_call = s5p_dsim_notifier_callback;
> +
> + return 0/*s3cfb_register_client(&dsim.s3cfb_notif)*/;
> +}
> +
> +static irqreturn_t s5p_dsim_interrupt_handler(int irq, void *dev_id)
> +{
> + disable_irq(irq);
> +
> + /* additional work. */
> +
> + enable_irq(irq);
> +
> + return IRQ_HANDLED;
> +}
?
> +
> +int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv)
> +{
> + struct mipi_lcd_info *lcd_info = NULL;
> +
> + lcd_info = kmalloc(sizeof(struct mipi_lcd_info), GFP_KERNEL);
> + if (lcd_info == NULL)
> + return -ENOMEM;
> +
> + lcd_info->mipi_drv = kmalloc(sizeof(struct mipi_lcd_driver),
> + GFP_KERNEL);
> + if (lcd_info->mipi_drv == NULL)
> + return -ENOMEM;
> +
> +
> + memcpy(lcd_info->mipi_drv, lcd_drv, sizeof(struct mipi_lcd_driver));
> +
> + mutex_lock(&mipi_lock);
> + list_add_tail(&lcd_info->list, &lcd_info_list);
> + mutex_unlock(&mipi_lock);
> +
> + dev_dbg(dsim.dev, "registered panel driver(%s) to mipi-dsi driver.\n",
> + lcd_drv->name);
> +
> + return 0;
> +}
> +
> +/*
> + * This function is wrapper for changing transfer mode.
> + * It is used to in panel driver before and after changing gamma value.
> + */
> +static int s5p_dsim_change_transfer_mode(int mode)
> +{
> + if (mode < 0 || mode > 1) {
> + dev_err(dsim.dev, "mode range should be 0 or 1.\n");
> + return -EFAULT;
> + }
> +
> + if (mode == 0)
> + s5p_dsim_set_data_transfer_mode(&dsim,
> + DSIM_TRANSFER_BYCPU, mode);
> + else
> + s5p_dsim_set_data_transfer_mode(&dsim,
> + DSIM_TRANSFER_BYLCDC, mode);
> +
> + return 0;
> +}
> +
> +struct mipi_lcd_driver *scan_mipi_driver(const char *name)
> +{
> + struct mipi_lcd_info *lcd_info;
> + struct mipi_lcd_driver *mipi_drv = NULL;
> +
> + mutex_lock(&mipi_lock);
> +
> + dev_dbg(dsim.dev, "find lcd panel driver(%s).\n",
> + name);
> +
> + list_for_each_entry(lcd_info, &lcd_info_list, list) {
> + mipi_drv = lcd_info->mipi_drv;
> +
> + if ((strcmp(mipi_drv->name, name)) == 0) {
> + mutex_unlock(&mipi_lock);
> + dev_dbg(dsim.dev, "found!!!(%s).\n", mipi_drv->name);
> + return mipi_drv;
> + }
> + }
> +
> + dev_warn(dsim.dev, "failed to find lcd panel driver(%s).\n",
> + name);
> +
> + mutex_unlock(&mipi_lock);
> +
> + return NULL;
> +}
> +
> +static int s5p_dsim_probe(struct platform_device *pdev)
> +{
> + struct resource *res;
> + int ret = -1;
> +
> + dsim.pd = to_dsim_plat(&pdev->dev);
> + dsim.dev = &pdev->dev;
> +
> + /* set dsim config data, dsim lcd config data and lcd panel data. */
> + dsim.dsim_info = dsim.pd->dsim_info;
> + dsim.dsim_lcd_info = dsim.pd->dsim_lcd_info;
> + dsim.lcd_panel_info =
> + (struct fb_videomode *) dsim.dsim_lcd_info->lcd_panel_info;
why isn't this in the correct type to begin with.
> + dsim.mipi_ddi_pd =
> + (struct mipi_ddi_platform_data *)
> + dsim.dsim_lcd_info->mipi_ddi_pd;
and again.
> + dsim.mipi_ddi_pd->resume_complete = 0;
> +
> + dsim.r_mipi_1_1v = regulator_get(&pdev->dev, "VMIPI_1.1V");
> + if (IS_ERR(dsim.r_mipi_1_1v)) {
> + dev_err(&pdev->dev, "failed to get regulator VMIPI_1.1V.\n");
> + goto regulator_get_err;
> + }
> +
> + dsim.r_mipi_1_8v = regulator_get(&pdev->dev, "VMIPI_1.8V");
> + if (IS_ERR(dsim.r_mipi_1_8v)) {
> + dev_err(&pdev->dev, "failed to get regulator VMIPI_1.8V.\n");
> + goto regulator_get_err;
> + }
> +
> + /* clock */
> + dsim.clock = clk_get(&pdev->dev, dsim.pd->clk_name);
> + if (IS_ERR(dsim.clock)) {
> + dev_err(&pdev->dev, "failed to get dsim clock source\n");
> + return -EINVAL;
> + }
> +
> + clk_enable(dsim.clock);
> +
> + /* io memory */
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> + if (!res) {
> + dev_err(&pdev->dev, "failed to get io memory region\n");
> + ret = -EINVAL;
> + goto err_clk_disable;
> + }
> +
> + /* request mem region */
> + res = request_mem_region(res->start,
> + res->end - res->start + 1, pdev->name);
resource_size()
> + if (!res) {
> + dev_err(&pdev->dev, "failed to request io memory region\n");
> + ret = -EINVAL;
> + goto err_clk_disable;
> + }
> +
> + /* ioremap for register block */
> + dsim.reg_base = (unsigned int) ioremap(res->start,
> + res->end - res->start + 1);
ARGH. dsim.reg_base should be 'void __iomem *'
> + if (!dsim.reg_base) {
> + dev_err(&pdev->dev, "failed to remap io region\n");
> + ret = -EINVAL;
> + goto err_clk_disable;
> + }
> +
> + /* it is used for MIPI-DSI based lcd panel driver. */
> + dsim.mipi_ddi_pd->dsim_data = (void *)&dsim;
> +
> + /*
> + * it uses frame done interrupt handler
> + * only in case of MIPI Video mode.
> + */
> + if (dsim.dsim_lcd_info->e_interface == DSIM_VIDEO) {
> + dsim.irq = platform_get_irq(pdev, 0);
> + if (request_irq(dsim.irq, s5p_dsim_interrupt_handler,
> + IRQF_TRIGGER_RISING, "mipi-dsi", &dsim)) {
do internal interrupts really need a trigger flag?
> + dev_err(&pdev->dev, "request_irq failed.\n");
> + goto err_trigger_irq;
> + }
> + }
> +
> + if (dsim.pd->mipi_power)
> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
> + (void *) dsim.r_mipi_1_8v, 1);
> + else {
> + dev_err(&pdev->dev, "mipi_power is NULL.\n");
> + goto mipi_power_err;
> + }
> +
> + /* find lcd panel driver registered to mipi-dsi driver. */
> + dsim.mipi_drv = scan_mipi_driver(dsim.pd->lcd_panel_name);
> + if (dsim.mipi_drv == NULL) {
> + dev_err(&pdev->dev, "mipi_drv is NULL.\n");
> + goto mipi_drv_err;
> + }
> +
> + /* register callback functions that lcd panel driver needs. */
> + dsim.mipi_ddi_pd->cmd_write = s5p_dsim_wr_data;
> + dsim.mipi_ddi_pd->cmd_read = NULL;
> + dsim.mipi_ddi_pd->get_dsim_frame_done =
> + s5p_dsim_get_frame_done_status;
> + dsim.mipi_ddi_pd->clear_dsim_frame_done = s5p_dsim_clear_frame_done;
> + dsim.mipi_ddi_pd->change_dsim_transfer_mode =
> + s5p_dsim_change_transfer_mode;
> + dsim.mipi_ddi_pd->get_fb_frame_done = dsim.pd->get_fb_frame_done;
> + dsim.mipi_ddi_pd->trigger = dsim.pd->trigger;
this looks like it should have been in a struture to be copied.
> + /* set lcd panel driver link */
> + ret = dsim.mipi_drv->set_link(dsim.mipi_ddi_pd);
> + if (ret < 0) {
> + dev_err(&pdev->dev, "failed to set link.\n");
> + goto mipi_drv_err;
> + }
> +
> + dsim.mipi_drv->probe(&pdev->dev);
> +
> + s5p_dsim_init_dsim(&dsim);
> + s5p_dsim_init_link(&dsim);
> +
> + s5p_dsim_set_hs_enable(&dsim);
> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
> +
> + /* it needs delay for stabilization */
> + mdelay(dsim.pd->delay_for_stabilization);
> +
> + /* initialize lcd panel */
> + if (dsim.mipi_drv->init)
> + dsim.mipi_drv->init(&pdev->dev);
> + else
> + dev_warn(&pdev->dev, "init func is null.\n");
> +
> + if (dsim.mipi_drv->display_on)
> + dsim.mipi_drv->display_on(&pdev->dev);
> + else
> + dev_warn(&pdev->dev, "display_on func is null.\n");
> +
> + s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
> +
> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
> +
> + s5p_dsim_register_notif(&pdev->dev);
> +
> + /* in case of command mode, trigger. */
> + if (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) {
> + if (dsim.pd->trigger)
> + dsim.pd->trigger(registered_fb[0]);
> + else
> + dev_warn(&pdev->dev, "trigger is null.\n");
> + }
> +
> + dev_info(&pdev->dev, "mipi-dsi driver(%s mode) has been probed.\n",
> + (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) ?
> + "CPU" : "RGB");
> +
> + return 0;
> +
> +err_trigger_irq:
> +mipi_drv_err:
> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
> + (void *) dsim.r_mipi_1_8v, 0);
> +
> +mipi_power_err:
> + iounmap((void __iomem *) dsim.reg_base);
> +
> +err_clk_disable:
> + clk_disable(dsim.clock);
> +
> +regulator_get_err:
> +
> + return ret;
> +
> +}
> +
> +static int s5p_dsim_remove(struct platform_device *pdev)
> +{
> + return 0;
> +}
> +
> +#ifdef CONFIG_PM
> +int s5p_dsim_suspend(struct platform_device *pdev, pm_message_t state)
> +{
> + dsim.mipi_ddi_pd->resume_complete = 0;
> +
> + if (dsim.mipi_drv->suspend)
> + dsim.mipi_drv->suspend(&pdev->dev, state);
> +
> + clk_disable(dsim.clock);
> +
> + if (dsim.pd->mipi_power)
> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
> + (void *) dsim.r_mipi_1_8v, 0);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_resume(struct platform_device *pdev)
> +{
> + if (dsim.pd->mipi_power)
> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
> + (void *) dsim.r_mipi_1_8v, 1);
> +
> + clk_enable(dsim.clock);
> +
> + if (dsim.mipi_drv->resume)
> + dsim.mipi_drv->resume(&pdev->dev);
> +
> + s5p_dsim_init_dsim(&dsim);
> + s5p_dsim_init_link(&dsim);
> +
> + s5p_dsim_set_hs_enable(&dsim);
> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
> +
> + /* it needs delay for stabilization */
> + mdelay(dsim.pd->delay_for_stabilization);
> +
> + /* initialize lcd panel */
> + if (dsim.mipi_drv->init)
> + dsim.mipi_drv->init(&pdev->dev);
> + else
> + dev_warn(&pdev->dev, "init func is null.\n");
> +
> + s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
> +
> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
> +
> + dsim.mipi_ddi_pd->resume_complete = 1;
> +
> + return 0;
> +}
> +#else
> +#define s5p_dsim_suspend NULL
> +#define s5p_dsim_resume NULL
> +#endif
> +
> +static struct platform_driver s5p_dsim_driver = {
> + .probe = s5p_dsim_probe,
> + .remove = s5p_dsim_remove,
> + .suspend = s5p_dsim_suspend,
> + .resume = s5p_dsim_resume,
> + .driver = {
> + .name = "s5p-dsim",
> + .owner = THIS_MODULE,
> + },
> +};
> +
> +static int s5p_dsim_register(void)
> +{
> + platform_driver_register(&s5p_dsim_driver);
> +
> + return 0;
> +}
> +
> +static void s5p_dsim_unregister(void)
> +{
> + platform_driver_unregister(&s5p_dsim_driver);
> +}
> +
> +module_init(s5p_dsim_register);
> +module_exit(s5p_dsim_unregister);
> +
> +MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
> +MODULE_DESCRIPTION("Samusung MIPI-DSIM driver");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/video/s5p_dsim_common.c b/drivers/video/s5p_dsim_common.c
> new file mode 100644
> index 0000000..77724dc
> --- /dev/null
> +++ b/drivers/video/s5p_dsim_common.c
> @@ -0,0 +1,753 @@
> +/* linux/drivers/video/samsung/s5p_dsim_common.c
> + *
> + * Samsung MIPI-DSIM common driver.
> + *
> + * InKi Dae, <inki.dae@samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +#include <linux/module.h>
> +#include <linux/kernel.h>
> +#include <linux/errno.h>
> +#include <linux/mutex.h>
> +#include <linux/wait.h>
> +#include <linux/fs.h>
> +#include <linux/mm.h>
> +#include <linux/fb.h>
> +#include <linux/ctype.h>
> +#include <linux/platform_device.h>
> +#include <linux/io.h>
> +#include <linux/memory.h>
> +#include <linux/delay.h>
> +#include <linux/kthread.h>
> +
> +#include <plat/fb.h>
> +#include <plat/regs-dsim.h>
> +
> +#include <mach/map.h>
> +#include <plat/dsim.h>
> +#include <plat/mipi_ddi.h>
> +
> +#include "s5p_dsim_lowlevel.h"
> +
> +static void s5p_dsim_long_data_wr(struct dsim_global *dsim, unsigned int data0,
> + unsigned int data1)
> +{
> + unsigned int data_cnt = 0, payload = 0;
> +
> + /* in case that data count is more then 4 */
> + for (data_cnt = 0; data_cnt < data1; data_cnt += 4) {
> + /*
> + * after sending 4bytes per one time,
> + * send remainder data less then 4.
> + */
> + if ((data1 - data_cnt) < 4) {
> + if ((data1 - data_cnt) == 3) {
> + payload = *(u8 *)(data0 + data_cnt) |
> + (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
> + (*(u8 *)(data0 + (data_cnt + 2))) << 16;
Erm, why wheren't these types kept as 'u8 *', this amount of casting
should be ringing alarm bells all over the place.
> + dev_dbg(dsim->dev, "count = 3 payload = %x, %x %x %x\n",
> + payload, *(u8 *)(data0 + data_cnt),
> + *(u8 *)(data0 + (data_cnt + 1)),
> + *(u8 *)(data0 + (data_cnt + 2)));
> + } else if ((data1 - data_cnt) == 2) {
> + payload = *(u8 *)(data0 + data_cnt) |
> + (*(u8 *)(data0 + (data_cnt + 1))) << 8;
> + dev_dbg(dsim->dev,
> + "count = 2 payload = %x, %x %x\n", payload,
> + *(u8 *)(data0 + data_cnt),
> + *(u8 *)(data0 + (data_cnt + 1)));
> + } else if ((data1 - data_cnt) == 1) {
> + payload = *(u8 *)(data0 + data_cnt);
> + }
> +
> + s5p_dsim_wr_tx_data(dsim, payload);
> + /* send 4bytes per one time. */
> + } else {
> + payload = *(u8 *)(data0 + data_cnt) |
> + (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
> + (*(u8 *)(data0 + (data_cnt + 2))) << 16 |
> + (*(u8 *)(data0 + (data_cnt + 3))) << 24;
> +
> + dev_dbg(dsim->dev,
> + "count = 4 payload = %x, %x %x %x %x\n",
> + payload, *(u8 *)(data0 + data_cnt),
> + *(u8 *)(data0 + (data_cnt + 1)),
> + *(u8 *)(data0 + (data_cnt + 2)),
> + *(u8 *)(data0 + (data_cnt + 3)));
> +
> + s5p_dsim_wr_tx_data(dsim, payload);
> + }
> + }
> +}
> +
> +int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
> + unsigned int data0, unsigned int data1)
> +{
> + struct dsim_global *dsim = NULL;
> + unsigned int timeout = 5000 * 2;
> + unsigned long delay_val, udelay;
> + unsigned char check_rx_ack = 0;
> +
> + dsim = (struct dsim_global *)dsim_data;
> +
> + if (dsim == NULL) {
> + dev_err(dsim->dev, "dsim_data is NULL.\n");
> + return -EFAULT;
> + }
> +
> +
> + if (dsim->state == DSIM_STATE_ULPS) {
> + dev_err(dsim->dev, "state is ULPS.\n");
> +
> + return -EINVAL;
> + }
> +
> + delay_val = 1000000 / dsim->dsim_info->esc_clk;
> + udelay = 10 * delay_val;
> +
> + mdelay(udelay);
> +
> + /* only if transfer mode is LPDT, wait SFR becomes empty. */
> + if (dsim->state == DSIM_STATE_STOP) {
> + while (!(s5p_dsim_get_fifo_state(dsim) &
> + SFR_HEADER_EMPTY)) {
> + if ((timeout--) > 0)
> + mdelay(1);
> + else {
> + dev_err(dsim->dev,
> + "SRF header fifo is not empty.\n");
> + return -EINVAL;
> + }
> + }
> + }
> +
> + switch (data_id) {
> + /* short packet types of packet types for command. */
> + case GEN_SHORT_WR_NO_PARA:
> + case GEN_SHORT_WR_1_PARA:
> + case GEN_SHORT_WR_2_PARA:
> + case DCS_WR_NO_PARA:
> + case DCS_WR_1_PARA:
> + case SET_MAX_RTN_PKT_SIZE:
> + s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
> + (unsigned char) data0, (unsigned char) data1);
> + if (check_rx_ack)
> + /* process response func should be implemented */
> + return 0;
> + else
> + return -EINVAL;
> +
> + /* general command */
> + case CMD_OFF:
> + case CMD_ON:
> + case SHUT_DOWN:
> + case TURN_ON:
> + s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
> + (unsigned char) data0, (unsigned char) data1);
> + if (check_rx_ack)
> + /* process response func should be implemented. */
> + return 0;
> + else
> + return -EINVAL;
> +
> + /* packet types for video data */
> + case VSYNC_START:
> + case VSYNC_END:
> + case HSYNC_START:
> + case HSYNC_END:
> + case EOT_PKT:
> + return 0;
> +
> + /* short and response packet types for command */
> + case GEN_RD_1_PARA:
> + case GEN_RD_2_PARA:
> + case GEN_RD_NO_PARA:
> + case DCS_RD_NO_PARA:
> + s5p_dsim_clear_interrupt(dsim, 0xffffffff);
> + s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
> + (unsigned char) data0, (unsigned char) data1);
> + /* process response func should be implemented. */
> + return 0;
> +
> + /* long packet type and null packet */
> + case NULL_PKT:
> + case BLANKING_PKT:
> + return 0;
> + case GEN_LONG_WR:
> + case DCS_LONG_WR:
> + {
> + unsigned int size, data_cnt = 0, payload = 0;
> +
> + size = data1 * 4;
> +
> + /* if data count is less then 4, then send 3bytes data. */
> + if (data1 < 4) {
> + payload = *(u8 *)(data0) |
> + *(u8 *)(data0 + 1) << 8 |
> + *(u8 *)(data0 + 2) << 16;
> +
> + s5p_dsim_wr_tx_data(dsim, payload);
> +
> + dev_dbg(dsim->dev, "count = %d payload = %x,%x %x %x\n",
> + data1, payload,
> + *(u8 *)(data0 + data_cnt),
> + *(u8 *)(data0 + (data_cnt + 1)),
> + *(u8 *)(data0 + (data_cnt + 2)));
> + /* in case that data count is more then 4 */
> + } else
> + s5p_dsim_long_data_wr(dsim, data0, data1);
> +
> + /* put data into header fifo */
> + s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
> + (unsigned char) (((unsigned short) data1) & 0xff),
> + (unsigned char) ((((unsigned short) data1) & 0xff00) >>
> + 8));
> +
> + }
> + if (check_rx_ack)
> + /* process response func should be implemented. */
> + return 0;
> + else
> + return -EINVAL;
> +
> + /* packet typo for video data */
> + case RGB565_PACKED:
> + case RGB666_PACKED:
> + case RGB666_LOOSLY:
> + case RGB888_PACKED:
> + if (check_rx_ack)
> + /* process response func should be implemented. */
> + return 0;
> + else
> + return -EINVAL;
> + default:
> + dev_warn(dsim->dev,
> + "data id %x is not supported current DSI spec.\n",
> + data_id);
> +
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +int s5p_dsim_init_header_fifo(struct dsim_global *dsim)
> +{
> + unsigned int cnt;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + for (cnt = 0; cnt < DSIM_HEADER_FIFO_SZ; cnt++)
> + dsim->header_fifo_index[cnt] = -1;
> + return 0;
> +}
> +
> +int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned char enable)
how about 'bool' for enable.
> +{
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + if (enable) {
> + int sw_timeout = 1000;
> + s5p_dsim_clear_interrupt(dsim, DSIM_PLL_STABLE);
> + s5p_dsim_enable_pll(dsim, 1);
> + while (1) {
> + sw_timeout--;
> + if (s5p_dsim_is_pll_stable(dsim))
> + return 0;
> + if (sw_timeout == 0)
> + return -EINVAL;
> + }
> + } else
> + s5p_dsim_enable_pll(dsim, 0);
> +
> + return 0;
> +}
> +
> +unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
> + unsigned char pre_divider, unsigned short main_divider,
> + unsigned char scaler)
> +{
> + unsigned long dfin_pll, dfvco, dpll_out;
> + unsigned char freq_band;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return 0;
> + }
> +
> + dfin_pll = (MIPI_FIN / pre_divider);
> +
> + if (dfin_pll < 6 * 1000 * 1000 || dfin_pll > 12 * 1000 * 1000) {
> + dev_warn(dsim->dev, "warning!!\n");
> + dev_warn(dsim->dev, "fin_pll range is 6MHz ~ 12MHz\n");
> + dev_warn(dsim->dev, "fin_pll of mipi dphy pll is %luMHz\n",
> + (dfin_pll / 1000000));
> +
> + s5p_dsim_enable_afc(dsim, 0, 0);
> + } else {
> + if (dfin_pll < 7 * 1000000)
> + s5p_dsim_enable_afc(dsim, 1, 0x1);
> + else if (dfin_pll < 8 * 1000000)
> + s5p_dsim_enable_afc(dsim, 1, 0x0);
> + else if (dfin_pll < 9 * 1000000)
> + s5p_dsim_enable_afc(dsim, 1, 0x3);
> + else if (dfin_pll < 10 * 1000000)
> + s5p_dsim_enable_afc(dsim, 1, 0x2);
> + else if (dfin_pll < 11 * 1000000)
> + s5p_dsim_enable_afc(dsim, 1, 0x5);
> + else
> + s5p_dsim_enable_afc(dsim, 1, 0x4);
> + }
> +
> + dfvco = dfin_pll * main_divider;
> + dev_dbg(dsim->dev, "dfvco = %lu, dfin_pll = %lu, main_divider = %d\n",
> + dfvco, dfin_pll, main_divider);
> + if (dfvco < 500000000 || dfvco > 1000000000) {
> + dev_warn(dsim->dev, "Caution!!\n");
> + dev_warn(dsim->dev, "fvco range is 500MHz ~ 1000MHz\n");
> + dev_warn(dsim->dev, "fvco of mipi dphy pll is %luMHz\n",
> + (dfvco / 1000000));
> + }
> +
> + dpll_out = dfvco / (1 << scaler);
> + dev_dbg(dsim->dev, "dpll_out = %lu, dfvco = %lu, scaler = %d\n",
> + dpll_out, dfvco, scaler);
> + if (dpll_out < 100 * 1000000)
> + freq_band = 0x0;
> + else if (dpll_out < 120 * 1000000)
> + freq_band = 0x1;
> + else if (dpll_out < 170 * 1000000)
> + freq_band = 0x2;
> + else if (dpll_out < 220 * 1000000)
> + freq_band = 0x3;
> + else if (dpll_out < 270 * 1000000)
> + freq_band = 0x4;
> + else if (dpll_out < 320 * 1000000)
> + freq_band = 0x5;
> + else if (dpll_out < 390 * 1000000)
> + freq_band = 0x6;
> + else if (dpll_out < 450 * 1000000)
> + freq_band = 0x7;
> + else if (dpll_out < 510 * 1000000)
> + freq_band = 0x8;
> + else if (dpll_out < 560 * 1000000)
> + freq_band = 0x9;
> + else if (dpll_out < 640 * 1000000)
> + freq_band = 0xa;
> + else if (dpll_out < 690 * 1000000)
> + freq_band = 0xb;
> + else if (dpll_out < 770 * 1000000)
> + freq_band = 0xc;
> + else if (dpll_out < 870 * 1000000)
> + freq_band = 0xd;
> + else if (dpll_out < 950 * 1000000)
> + freq_band = 0xe;
> + else
> + freq_band = 0xf;
something says a divide down before the ompatr would have been
a good idea, it is almost a table.
> + dev_dbg(dsim->dev, "freq_band = %d\n", freq_band);
> +
> + s5p_dsim_pll_freq(dsim, pre_divider, main_divider, scaler);
> +
> + {
> + unsigned char temp0, temp1;
> +
> + temp0 = 0;
> + s5p_dsim_hs_zero_ctrl(dsim, temp0);
> + temp1 = 0;
> + s5p_dsim_prep_ctrl(dsim, temp1);
> + }
> +
> + /* Freq Band */
> + s5p_dsim_pll_freq_band(dsim, freq_band);
> +
> + /* Stable time */
> + s5p_dsim_pll_stable_time(dsim,
> + dsim->dsim_info->pll_stable_time);
> +
> + /* Enable PLL */
> + dev_dbg(dsim->dev, "FOUT of mipi dphy pll is %luMHz\n",
> + (dpll_out / 1000000));
> +
> + return dpll_out;
> +}
> +
> +int s5p_dsim_set_clock(struct dsim_global *dsim,
> + unsigned char byte_clk_sel, unsigned char enable)
> +{
> + unsigned int esc_div;
> + unsigned long esc_clk_error_rate;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EINVAL;
> + }
again, how about making this code WARN_ON?
> + if (enable) {
> + dsim->e_clk_src = byte_clk_sel;
> +
> + /* Escape mode clock and byte clock source */
> + s5p_dsim_set_byte_clock_src(dsim, byte_clk_sel);
> +
> + /* DPHY, DSIM Link : D-PHY clock out */
> + if (byte_clk_sel == DSIM_PLL_OUT_DIV8) {
> + dsim->hs_clk = s5p_dsim_change_pll(dsim,
> + dsim->dsim_info->p, dsim->dsim_info->m,
> + dsim->dsim_info->s);
> + if (dsim->hs_clk == 0) {
> + dev_err(dsim->dev,
> + "failed to get hs clock.\n");
> + return -EINVAL;
> + }
> +
> + dsim->byte_clk = dsim->hs_clk / 8;
> + s5p_dsim_enable_pll_bypass(dsim, 0);
> + s5p_dsim_pll_on(dsim, 1);
> + /* DPHY : D-PHY clock out, DSIM link : external clock out */
> + } else if (byte_clk_sel == DSIM_EXT_CLK_DIV8)
> + dev_warn(dsim->dev,
> + "this project is not support \
> + external clock source for MIPI DSIM\n");
> + else if (byte_clk_sel == DSIM_EXT_CLK_BYPASS)
> + dev_warn(dsim->dev,
> + "this project is not support \
> + external clock source for MIPI DSIM\n");
> +
> + /* escape clock divider */
> + esc_div = dsim->byte_clk / (dsim->dsim_info->esc_clk);
> + dev_dbg(dsim->dev,
> + "esc_div = %d, byte_clk = %lu, esc_clk = %lu\n",
> + esc_div, dsim->byte_clk, dsim->dsim_info->esc_clk);
> + if ((dsim->byte_clk / esc_div) >= 20000000 ||
> + (dsim->byte_clk / esc_div) > dsim->dsim_info->esc_clk)
> + esc_div += 1;
> +
> + dsim->escape_clk = dsim->byte_clk / esc_div;
> + dev_dbg(dsim->dev,
> + "escape_clk = %lu, byte_clk = %lu, esc_div = %d\n",
> + dsim->escape_clk, dsim->byte_clk, esc_div);
> +
> + /*
> + * enable escclk on lane
> + *
> + * in case of evt0, DSIM_TRUE is enable and
> + * DSIM_FALSE is enable for evt1.
> + */
> + if (dsim->pd->platform_rev == 1)
> + s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
> + else
> + s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
> +
> + /* enable byte clk and escape clock */
> + s5p_dsim_set_esc_clk_prs(dsim, 1, esc_div);
> + /* escape clock on lane */
> + s5p_dsim_enable_esc_clk_on_lane(dsim,
> + (DSIM_LANE_CLOCK | dsim->data_lane), 1);
> +
> + dev_dbg(dsim->dev, "byte clock is %luMHz\n",
> + (dsim->byte_clk / 1000000));
> + dev_dbg(dsim->dev, "escape clock that user's need is %lu\n",
> + (dsim->dsim_info->esc_clk / 1000000));
> + dev_dbg(dsim->dev, "escape clock divider is %x\n", esc_div);
> + dev_dbg(dsim->dev, "escape clock is %luMHz\n",
> + ((dsim->byte_clk / esc_div) / 1000000));
> +
> + if ((dsim->byte_clk / esc_div) > dsim->escape_clk) {
> + esc_clk_error_rate = dsim->escape_clk /
> + (dsim->byte_clk / esc_div);
> + dev_warn(dsim->dev, "error rate is %lu over.\n",
> + (esc_clk_error_rate / 100));
> + } else if ((dsim->byte_clk / esc_div) < (dsim->escape_clk)) {
> + esc_clk_error_rate = (dsim->byte_clk / esc_div) /
> + dsim->escape_clk;
> + dev_warn(dsim->dev, "error rate is %lu under.\n",
> + (esc_clk_error_rate / 100));
> + }
> + } else {
> + s5p_dsim_enable_esc_clk_on_lane(dsim,
> + (DSIM_LANE_CLOCK | dsim->data_lane), 0);
> + s5p_dsim_set_esc_clk_prs(dsim, 0, 0);
> +
> + /*
> + * in case of evt0, DSIM_FALSE is disable and
> + * DSIM_TRUE is disable for evt1.
> + */
> + if (dsim->pd->platform_rev == 1)
> + s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
> + else
> + s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
> +
> + if (byte_clk_sel == DSIM_PLL_OUT_DIV8)
> + s5p_dsim_pll_on(dsim, 0);
> + }
> +
> + return 0;
> +}
> +
> +int s5p_dsim_init_dsim(struct dsim_global *dsim)
> +{
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + if (dsim->pd->init_d_phy)
> + dsim->pd->init_d_phy(dsim);
> +
> + dsim->state = DSIM_STATE_RESET;
> +
> + switch (dsim->dsim_info->e_no_data_lane) {
> + case DSIM_DATA_LANE_1:
> + dsim->data_lane = DSIM_LANE_DATA0;
> + break;
> + case DSIM_DATA_LANE_2:
> + dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1;
> + break;
> + case DSIM_DATA_LANE_3:
> + dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
> + DSIM_LANE_DATA2;
> + break;
> + case DSIM_DATA_LANE_4:
> + dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
> + DSIM_LANE_DATA2 | DSIM_LANE_DATA3;
> + break;
> + default:
> + dev_info(dsim->dev, "data lane is invalid.\n");
> + return -EINVAL;
> + };
> +
> + s5p_dsim_init_header_fifo(dsim);
> + s5p_dsim_sw_reset(dsim);
> + s5p_dsim_dp_dn_swap(dsim, dsim->dsim_info->e_lane_swap);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim, int enable)
> +{
> + /* enable only frame done interrupt */
> + s5p_dsim_set_interrupt_mask(dsim, INTMSK_FRAME_DONE, enable);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_set_display_mode(struct dsim_global *dsim,
> + struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
> +{
> + struct fb_videomode *mlcd_video = NULL;
> + struct fb_cmdmode *mlcd_command = NULL;
> + struct s3c_fb_pd_win *pd;
> + unsigned int width = 0, height = 0;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + pd = (struct s3c_fb_pd_win *)main_lcd->lcd_panel_info;
> +
> + /* in case of VIDEO MODE (RGB INTERFACE) */
> + if (dsim->dsim_lcd_info->e_interface == (u32) DSIM_VIDEO) {
> + mlcd_video = (struct fb_videomode *)&pd->win_mode;
> + width = mlcd_video->xres;
> + height = mlcd_video->yres;
> +
> + if (dsim->dsim_info->auto_vertical_cnt == DSIM_FALSE) {
> + s5p_dsim_set_main_disp_vporch(dsim,
> + mlcd_video->upper_margin,
> + mlcd_video->lower_margin, 0);
> + s5p_dsim_set_main_disp_hporch(dsim,
> + mlcd_video->left_margin,
> + mlcd_video->right_margin);
> + s5p_dsim_set_main_disp_sync_area(dsim,
> + mlcd_video->vsync_len,
> + mlcd_video->hsync_len);
> + }
> + } else { /* in case of COMMAND MODE (CPU or I80 INTERFACE) */
> + mlcd_command = (struct fb_cmdmode *)&pd->cmd_mode;
> + width = mlcd_command->xres;
> + height = mlcd_command->yres;
> + }
> +
> + s5p_dsim_set_main_disp_resol(dsim, height, width);
> +
> + if (sub_lcd != NULL)
> + dev_warn(dsim->dev, "sub lcd isn't supported yet.\n");
> +
> + s5p_dsim_display_config(dsim, dsim->dsim_lcd_info, NULL);
> +
> + return 0;
> +}
> +
> +int s5p_dsim_init_link(struct dsim_global *dsim)
> +{
> + unsigned int time_out = 100;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + switch (dsim->state) {
> + case DSIM_STATE_RESET:
> + s5p_dsim_sw_reset(dsim);
> + case DSIM_STATE_INIT:
> + s5p_dsim_init_fifo_pointer(dsim, 0x1f);
> +
> + /* dsi configuration */
> + s5p_dsim_init_config(dsim, dsim->dsim_lcd_info,
> + NULL, dsim->dsim_info);
> + s5p_dsim_enable_lane(dsim, DSIM_LANE_CLOCK, 1);
> + s5p_dsim_enable_lane(dsim, dsim->data_lane, 1);
> +
> + /* set clock configuration */
> + s5p_dsim_set_clock(dsim, dsim->dsim_info->e_byte_clk,
> + 1);
> +
> + /* check clock and data lane state is stop state */
> + while (!(s5p_dsim_is_lane_state(dsim, DSIM_LANE_CLOCK)
> + == DSIM_LANE_STATE_STOP) &&
> + !(s5p_dsim_is_lane_state(dsim,
> + dsim->data_lane) == DSIM_LANE_STATE_STOP)) {
> + time_out--;
> + if (time_out == 0) {
> + dev_info(dsim->dev,
> + "DSI Master is not stop state.\n");
> + dev_info(dsim->dev,
> + "Check initialization process\n");
> +
> + return -EINVAL;
> + }
> + }
> +
> + if (time_out != 0) {
> + dev_info(dsim->dev,
> + "initialization of DSI Master is successful\n");
> + dev_info(dsim->dev, "DSI Master state is stop state\n");
> + }
> +
> + dsim->state = DSIM_STATE_STOP;
> +
> + /* BTA sequence counters */
> + s5p_dsim_set_stop_state_counter(dsim,
> + dsim->dsim_info->stop_holding_cnt);
> + s5p_dsim_set_bta_timeout(dsim,
> + dsim->dsim_info->bta_timeout);
> + s5p_dsim_set_lpdr_timeout(dsim,
> + dsim->dsim_info->rx_timeout);
> +
> + /* default LPDT by both cpu and lcd controller */
> + s5p_dsim_set_data_mode(dsim, DSIM_TRANSFER_BOTH,
> + DSIM_STATE_STOP);
> +
> + return 0;
> + default:
> + dev_info(dsim->dev, "DSI Master is already init.\n");
> + return 0;
> + }
> +
> + return 0;
> +}
> +
> +int s5p_dsim_set_hs_enable(struct dsim_global *dsim)
> +{
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + if (dsim->state == DSIM_STATE_STOP) {
> + if (dsim->e_clk_src != DSIM_EXT_CLK_BYPASS) {
> + dsim->state = DSIM_STATE_HSCLKEN;
> + s5p_dsim_set_data_mode(dsim,
> + DSIM_TRANSFER_BOTH, DSIM_STATE_HSCLKEN);
> + s5p_dsim_enable_hs_clock(dsim, 1);
> +
> + return 0;
> + } else
> + dev_warn(dsim->dev,
> + "clock source is external bypass.\n");
> + } else
> + dev_warn(dsim->dev, "DSIM is not stop state.\n");
> +
> + return 0;
> +}
> +
> +int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
> + unsigned char data_path, unsigned char hs_enable)
> +{
> + int ret = -1;
> +
> + if (dsim == NULL) {
> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + if (hs_enable) {
> + if (dsim->state == DSIM_STATE_HSCLKEN) {
> + s5p_dsim_set_data_mode(dsim, data_path,
> + DSIM_STATE_HSCLKEN);
> + ret = 0;
> + } else {
> + dev_err(dsim->dev, "HS Clock lane is not enabled.\n");
> + ret = -EINVAL;
> + }
> + } else {
> + if (dsim->state == DSIM_STATE_INIT || dsim->state ==
> + DSIM_STATE_ULPS) {
> + dev_err(dsim->dev,
> + "DSI Master is not STOP or HSDT state.\n");
> + ret = -EINVAL;
> + } else {
> + s5p_dsim_set_data_mode(dsim, data_path,
> + DSIM_STATE_STOP);
> + ret = 0;
> + }
> + }
> +
> + return ret;
> +}
> +
> +int s5p_dsim_get_frame_done_status(void *dsim_data)
> +{
> + struct dsim_global *dsim = NULL;
> +
> + dsim = (struct dsim_global *)dsim_data;
> +
> + if (dsim == NULL) {
> + dev_err(dsim->dev, "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + return _s5p_dsim_get_frame_done_status(dsim);
> +}
> +
> +int s5p_dsim_clear_frame_done(void *dsim_data)
> +{
> + struct dsim_global *dsim = NULL;
> +
> + dsim = (struct dsim_global *)dsim_data;
> +
> + if (dsim == NULL) {
> + dev_err(dsim->dev, "dsim_global pointer is NULL.\n");
> + return -EFAULT;
> + }
> +
> + _s5p_dsim_clear_frame_done(dsim);
> +
> + return 0;
> +}
> +
> +MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
> +MODULE_DESCRIPTION("Samusung MIPI-DSIM common driver");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/video/s5p_dsim_common.h b/drivers/video/s5p_dsim_common.h
> new file mode 100644
> index 0000000..deefca1
> --- /dev/null
> +++ b/drivers/video/s5p_dsim_common.h
> @@ -0,0 +1,38 @@
> +/* linux/drivers/video/samsung/s5p_dsim_common.h
> + *
> + * Header file for Samsung MIPI-DSI common driver.
> + *
> + * Copyright (c) 2009 Samsung Electronics
> + * InKi Dae <inki.dae@samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +#ifndef _S5P_DSIM_COMMON_H
> +#define _S5P_DSIM_COMMON_H
> +
> +extern int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
> + unsigned int data0, unsigned int data1);
> +extern int s5p_dsim_init_header_fifo(struct dsim_global *dsim);
> +extern int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned char enable);
> +extern unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
> + unsigned char pre_divider, unsigned short main_divider,
> + unsigned char scaler);
> +extern int s5p_dsim_set_clock(struct dsim_global *dsim,
> + unsigned char byte_clk_sel, unsigned char enable);
> +extern int s5p_dsim_init_dsim(struct dsim_global *dsim);
> +extern int s5p_dsim_set_display_mode(struct dsim_global *dsim,
> + struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd);
> +extern int s5p_dsim_init_link(struct dsim_global *dsim);
> +extern int s5p_dsim_set_hs_enable(struct dsim_global *dsim);
> +extern int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
> + unsigned char data_path, unsigned char hs_enable);
> +extern int s5p_dsim_get_frame_done_status(void *dsim_data);
> +extern int s5p_dsim_clear_frame_done(void *dsim_data);
> +extern int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim, int enable);
> +
> +extern struct fb_info *registered_fb[FB_MAX] __read_mostly;
> +
> +#endif /* _S5P_DSIM_COMMON_H */
> diff --git a/drivers/video/s5p_dsim_lowlevel.c b/drivers/video/s5p_dsim_lowlevel.c
> new file mode 100644
> index 0000000..6a27395
> --- /dev/null
> +++ b/drivers/video/s5p_dsim_lowlevel.c
> @@ -0,0 +1,562 @@
> +/* linux/drivers/video/samsung/s5p-dsim.c
> + *
> + * Samsung MIPI-DSIM lowlevel driver.
> + *
> + * InKi Dae, <inki.dae@samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +#include <linux/module.h>
> +#include <linux/kernel.h>
> +#include <linux/errno.h>
> +#include <linux/mutex.h>
> +#include <linux/wait.h>
> +#include <linux/delay.h>
> +#include <linux/fs.h>
> +#include <linux/mm.h>
> +#include <linux/ctype.h>
> +#include <linux/io.h>
> +
> +#include <mach/map.h>
> +
> +#include <plat/dsim.h>
> +#include <plat/mipi_ddi.h>
> +#include <plat/regs-dsim.h>
> +
> +void s5p_dsim_func_reset(struct dsim_global *dsim)
> +{
> + unsigned int cfg = 0;
> +
> + cfg = DSIM_FUNCRST;
> +
> + writel(cfg, dsim->reg_base + S5P_DSIM_SWRST);
> +}
so much easier to do
writel(DSIM_FUNCRST, dsim->reg_base + S5P_DSIM_SWRST);
much less space needed.
> +void s5p_dsim_sw_reset(struct dsim_global *dsim)
> +{
> + unsigned int cfg = 0;
> +
> + cfg = DSIM_SWRST;
> +
> + writel(cfg, dsim->reg_base + S5P_DSIM_SWRST);
> +}
> +
> +void s5p_dsim_set_interrupt_mask(struct dsim_global *dsim, unsigned int mode,
> + unsigned int mask)
> +{
bool for mask.
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTMSK);
> +
> + if (mask)
> + reg |= mode;
> + else
> + reg &= ~(mode);
no need for () around mode.
> + writel(reg, dsim->reg_base + S5P_DSIM_INTMSK);
> +}
> +
> +void s5p_dsim_init_fifo_pointer(struct dsim_global *dsim, unsigned char cfg)
> +{
> + unsigned int reg;
> +
> + reg = readl(dsim->reg_base + S5P_DSIM_FIFOCTRL);
> +
> + writel(reg & ~(cfg), dsim->reg_base + S5P_DSIM_FIFOCTRL);
> + mdelay(10);
> + reg |= cfg;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_FIFOCTRL);
> +}
> +
> +/*
> + * this function set PLL P, M and S value in D-PHY
> + */
> +void s5p_dsim_set_phy_tunning(struct dsim_global *dsim, unsigned int value)
> +{
> + writel(DSIM_AFC_CTL(value), dsim->reg_base + S5P_DSIM_PHYACCHR);
> +}
> +
> +void s5p_dsim_set_main_disp_resol(struct dsim_global *dsim,
> + unsigned short vert_resol, unsigned short hori_resol)
> +{
> + unsigned int reg;
> +
> + /* standby should be set after configuration so set to not ready*/
> + reg = (readl(dsim->reg_base + S5P_DSIM_MDRESOL)) &
> + ~(DSIM_MAIN_STAND_BY);
> + writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
> +
> + reg &= ~(0x7ff << 16) & ~(0x7ff << 0);
> + reg |= DSIM_MAIN_VRESOL(vert_resol) | DSIM_MAIN_HRESOL(hori_resol);
> +
> + reg |= DSIM_MAIN_STAND_BY;
> + writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
> +}
> +
> +void s5p_dsim_set_main_disp_vporch(struct dsim_global *dsim,
> + unsigned int cmd_allow, unsigned int vfront, unsigned int vback)
> +{
> + unsigned int reg;
> +
> + reg = (readl(dsim->reg_base + S5P_DSIM_MVPORCH)) &
> + ~(DSIM_CMD_ALLOW_MASK) & ~(DSIM_STABLE_VFP_MASK) &
> + ~(DSIM_MAIN_VBP_MASK);
> +
> + reg |= ((cmd_allow & 0xf) << DSIM_CMD_ALLOW_SHIFT) |
> + ((vfront & 0x7ff) << DSIM_STABLE_VFP_SHIFT) |
> + ((vback & 0x7ff) << DSIM_MAIN_VBP_SHIFT);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_MVPORCH);
> +}
> +
> +void s5p_dsim_set_main_disp_hporch(struct dsim_global *dsim,
> + unsigned short front, unsigned short back)
> +{
> + unsigned int reg;
> +
> + reg = (readl(dsim->reg_base + S5P_DSIM_MHPORCH)) &
> + ~(DSIM_MAIN_HFP_MASK) & ~(DSIM_MAIN_HBP_MASK);
> +
> + reg |= (front << DSIM_MAIN_HFP_SHIFT) | (back << DSIM_MAIN_HBP_SHIFT);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_MHPORCH);
> +}
> +
> +void s5p_dsim_set_main_disp_sync_area(struct dsim_global *dsim,
> + unsigned short vert, unsigned short hori)
> +{
> + unsigned int reg;
> +
> + reg = (readl(dsim->reg_base + S5P_DSIM_MSYNC)) &
> + ~(DSIM_MAIN_VSA_MASK) & ~(DSIM_MAIN_HSA_MASK);
> +
> + reg |= ((vert & 0x3ff) << DSIM_MAIN_VSA_SHIFT) |
> + (hori << DSIM_MAIN_HSA_SHIFT);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_MSYNC);
> +}
> +
> +void s5p_dsim_set_sub_disp_resol(struct dsim_global *dsim,
> + unsigned short vert, unsigned short hori)
> +{
> + unsigned int reg;
> +
> + reg = (readl(dsim->reg_base + S5P_DSIM_SDRESOL)) &
> + ~(DSIM_SUB_STANDY_MASK);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
> +
> + reg &= ~(DSIM_SUB_VRESOL_MASK) | ~(DSIM_SUB_HRESOL_MASK);
> + reg |= ((vert & 0x7ff) << DSIM_SUB_VRESOL_SHIFT) |
> + ((hori & 0x7ff) << DSIM_SUB_HRESOL_SHIFT);
> + writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
> +
> + reg |= (1 << DSIM_SUB_STANDY_SHIFT);
> + writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
> +}
> +
> +void s5p_dsim_init_config(struct dsim_global *dsim,
> + struct dsim_lcd_config *main_lcd_info,
> + struct dsim_lcd_config *sub_lcd_info, struct dsim_config *dsim_info)
> +{
> + unsigned int cfg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
> + ~(1 << 28) & ~(0x1f << 20) & ~(0x3 << 5);
> +
> + cfg = (dsim_info->auto_flush << 29) |
> + (dsim_info->eot_disable << 28) |
> + (dsim_info->auto_vertical_cnt << DSIM_AUTO_MODE_SHIFT) |
> + (dsim_info->hse << DSIM_HSE_MODE_SHIFT) |
> + (dsim_info->hfp << DSIM_HFP_MODE_SHIFT) |
> + (dsim_info->hbp << DSIM_HBP_MODE_SHIFT) |
> + (dsim_info->hsa << DSIM_HSA_MODE_SHIFT) |
> + (dsim_info->e_no_data_lane << DSIM_NUM_OF_DATALANE_SHIFT);
> +
> + writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
> +}
> +
> +void s5p_dsim_display_config(struct dsim_global *dsim,
> + struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
> +{
> + u32 reg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
> + ~(0x3 << 26) & ~(1 << 25) & ~(0x3 << 18) & ~(0x7 << 12) &
> + ~(0x3 << 16) & ~(0x7 << 8);
> +
> + if (main_lcd->e_interface == DSIM_VIDEO)
> + reg |= (1 << 25);
> + else if (main_lcd->e_interface == DSIM_COMMAND)
> + reg &= ~(1 << 25);
> + else {
> + dev_err(dsim->dev, "this ddi is not MIPI interface.\n");
> + return;
> + }
> +
> + /* main lcd */
> + reg |= ((u8) (main_lcd->parameter[DSI_VIDEO_MODE_SEL]) & 0x3) << 26 |
> + ((u8) (main_lcd->parameter[DSI_VIRTUAL_CH_ID]) & 0x3) << 18 |
> + ((u8) (main_lcd->parameter[DSI_FORMAT]) & 0x7) << 12;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
> +}
> +
> +void s5p_dsim_enable_lane(struct dsim_global *dsim, unsigned char lane,
> + unsigned char enable)
> +{
> + unsigned int reg;
> +
> + reg = readl(dsim->reg_base + S5P_DSIM_CONFIG);
> +
> + if (lane == DSIM_LANE_CLOCK) {
> + if (enable)
> + reg |= (1 << 0);
> + else
> + reg &= ~(1 << 0);
> + } else {
> + if (enable)
> + reg |= (lane << 1);
> + else
> + reg &= ~(lane << 1);
> + }
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
> +}
> +
> +
> +void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
> + unsigned char count)
> +{
> + unsigned int cfg = 0;
> +
> + /* get the data lane number. */
> + cfg = DSIM_NUM_OF_DATA_LANE(count);
> +
> + writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
> +}
> +
> +void s5p_dsim_enable_afc(struct dsim_global *dsim, unsigned char enable,
> + unsigned char afc_code)
> +{
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PHYACCHR);
> +
> + if (enable) {
> + reg |= (1 << 14);
> + reg &= ~(0x7 << 5);
> + reg |= (afc_code & 0x7) << 5;
> + } else
> + reg &= ~(1 << 14);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_PHYACCHR);
> +}
> +
> +void s5p_dsim_enable_pll_bypass(struct dsim_global *dsim,
> + unsigned char enable)
unsigned int enable.
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
> + ~(DSIM_PLL_BYPASS_EXTERNAL);
> +
> + reg |= enable << DSIM_PLL_BYPASS_SHIFT;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
> +}
> +
> +void s5p_dsim_set_pll_pms(struct dsim_global *dsim, unsigned char p,
> + unsigned short m, unsigned short s)
> +{
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PLLCTRL);
> +
> + reg |= ((p & 0x3f) << 13) | ((m & 0x1ff) << 4) | ((s & 0x7) << 1);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
> +}
> +
> +void s5p_dsim_pll_freq_band(struct dsim_global *dsim, unsigned char freq_band)
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
> + ~(0x1f << DSIM_FREQ_BAND_SHIFT);
> +
> + reg |= ((freq_band & 0x1f) << DSIM_FREQ_BAND_SHIFT);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
> +}
> +
> +void s5p_dsim_pll_freq(struct dsim_global *dsim, unsigned char pre_divider,
> + unsigned short main_divider, unsigned char scaler)
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
> + ~(0x7ffff << 1);
> +
> + reg |= (pre_divider & 0x3f) << 13 | (main_divider & 0x1ff) << 4 |
> + (scaler & 0x7) << 1;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
> +}
> +
> +void s5p_dsim_pll_stable_time(struct dsim_global *dsim,
> + unsigned int lock_time)
> +{
> + writel(lock_time, dsim->reg_base + S5P_DSIM_PLLTMR);
> +}
> +
> +void s5p_dsim_enable_pll(struct dsim_global *dsim, unsigned char enable)
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
> + ~(0x1 << DSIM_PLL_EN_SHIFT);
> +
> + reg |= ((enable & 0x1) << DSIM_PLL_EN_SHIFT);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
> +}
> +
> +void s5p_dsim_set_byte_clock_src(struct dsim_global *dsim, unsigned char src)
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
> + ~(0x3 << DSIM_BYTE_CLK_SRC_SHIFT);
> +
> + reg |= ((unsigned int) src) << DSIM_BYTE_CLK_SRC_SHIFT;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
> +}
> +
> +void s5p_dsim_enable_byte_clock(struct dsim_global *dsim,
> + unsigned char enable)
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
> + ~(1 << DSIM_BYTE_CLKEN_SHIFT);
> +
> + reg |= enable << DSIM_BYTE_CLKEN_SHIFT;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
> +}
> +
> +void s5p_dsim_set_esc_clk_prs(struct dsim_global *dsim, unsigned char enable,
> + unsigned short prs_val)
> +{
> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
> + ~(1 << DSIM_ESC_CLKEN_SHIFT) & ~(0xffff);
> +
> + reg |= enable << DSIM_ESC_CLKEN_SHIFT;
> + if (enable)
> + reg |= prs_val;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
> +}
> +
> +void s5p_dsim_enable_esc_clk_on_lane(struct dsim_global *dsim,
> + unsigned char lane_sel, unsigned char enable)
> +{
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_CLKCTRL);
> +
> + if (enable) {
> + if (lane_sel & DSIM_LANE_CLOCK)
> + reg |= 1 << DSIM_LANE_ESC_CLKEN_SHIFT;
> + if (lane_sel & DSIM_LANE_DATA0)
> + reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1);
> + if (lane_sel & DSIM_LANE_DATA1)
> + reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2);
> + if (lane_sel & DSIM_LANE_DATA2)
> + reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3);
> + if (lane_sel & DSIM_LANE_DATA2)
> + reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4);
> + } else {
> + if (lane_sel & DSIM_LANE_CLOCK)
> + reg &= ~(1 << DSIM_LANE_ESC_CLKEN_SHIFT);
> + if (lane_sel & DSIM_LANE_DATA0)
> + reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1));
> + if (lane_sel & DSIM_LANE_DATA1)
> + reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2));
> + if (lane_sel & DSIM_LANE_DATA2)
> + reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3));
> + if (lane_sel & DSIM_LANE_DATA2)
> + reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4));
> + }
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
> +}
> +
> +
> +void s5p_dsim_clear_interrupt(struct dsim_global *dsim, unsigned int int_src)
> +{
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
> +
> + reg |= int_src;
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_INTSRC);
> +}
>
> +unsigned char s5p_dsim_is_pll_stable(struct dsim_global *dsim)
> +{
> + return (unsigned char) ((readl(dsim->reg_base + S5P_DSIM_STATUS) &
> + (1 << 31)) >> 31);
> +}
do you really need to be casting to an unsigned char?
sure the code would be more efficient if you simply return an unsigned
int.
Either >> 31 the result (hint, it'll be the only bit left) or use
the & (1 << 31) and return the result (non-zero generally regarded as true).
> +
> +unsigned int s5p_dsim_get_fifo_state(struct dsim_global *dsim)
> +{
> + unsigned int ret = 0;
> +
> + ret = (readl(dsim->reg_base + S5P_DSIM_FIFOCTRL) & ~(0x1f));
> +
> + return ret;
> +}
again, no need for intermediate variable and certianly no need to init
it before assinging it.
> +
> +void s5p_dsim_wr_tx_header(struct dsim_global *dsim,
> + unsigned char di, unsigned char data0, unsigned char data1)
> +{
> + unsigned int reg = (data1 << 16) | (data0 << 8) | ((di & 0x3f) << 0);
> +
> + writel(reg, dsim->reg_base + S5P_DSIM_PKTHDR);
> +}
> +
> +unsigned int _s5p_dsim_get_frame_done_status(struct dsim_global *dsim)
> +{
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
> +
> + return (reg & INTSRC_FRAME_DONE) ? 1 : 0;
> +}
> +
> +void _s5p_dsim_clear_frame_done(struct dsim_global *dsim)
> +{
> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
> +
> + writel(reg | INTSRC_FRAME_DONE, dsim->reg_base +
> + S5P_DSIM_INTSRC);
> +}
> +
> +void s5p_dsim_wr_tx_data(struct dsim_global *dsim, unsigned int tx_data)
> +{
> + writel(tx_data, dsim->reg_base + S5P_DSIM_PAYLOAD);
> +}
> diff --git a/drivers/video/s5p_dsim_lowlevel.h b/drivers/video/s5p_dsim_lowlevel.h
> new file mode 100644
> index 0000000..ff950ba
> --- /dev/null
> +++ b/drivers/video/s5p_dsim_lowlevel.h
> @@ -0,0 +1,101 @@
> +/* linux/drivers/video/samsung/s5p_dsim_lowlevel.h
> + *
> + * Header file for Samsung MIPI-DSIM lowlevel driver.
> + *
> + * Copyright (c) 2009 Samsung Electronics
> + * InKi Dae <inki.dae@samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +#ifndef _S5P_DSIM_LOWLEVEL_H
> +#define _S5P_DSIM_LOWLEVEL_H
> +
> +struct dsim_global;
> +
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [PATCH 2/2] S5PV210: Add MIPI-DSI Driver.
2010-07-02 14:03 ` Ben Dooks
@ 2010-07-02 18:08 ` InKi Dae
-1 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-02 18:08 UTC (permalink / raw)
To: Ben Dooks
Cc: linux-fbdev-devel, InKi Dae, Ben Dooks, kmpark, akpm, linux-arm-kernel
Most of you pointed out would be modified.
Code cleanup and code review was the lack of
Thank you, Ben.
2010/7/2 Ben Dooks <ben@simtec.co.uk>:
> On 02/07/10 09:51, InKi Dae wrote:
>> this patch addes MIPI-DSI Driver.
>>
>> to use this driver, some structures below should be added to machine
>> specific file.
>>
>> struct dsim_config
>> - define clock info, data lane count and video mode info for MIPI-DSI
>> Controller.
>>
>> struct dsim_lcd_config
>> - define interface mode, channel ID, Pixel format and so on.
>>
>> struct s5p_platform_dsim
>> - define callbacks for initializing D-PHY, MIPI reset and trigger
>> releated interfaces of s3c-fb.c file.
>>
>> Signed-off-by: InKi Dae <inki.dae@samsung.com <mailto:p.osciak@samsung.com>>
>> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com
>> <mailto:kyungmin.park@samsung.com>>
>> ---
>>
>> diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
>> index 2a25ab4..f716678 100644
>> --- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
>> +++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
>> @@ -162,6 +162,7 @@
>>
>> /* MIPI */
>> #define S5P_MIPI_DPHY_EN (3)
>> +#define S5P_MIPI_M_RESETN (1 << 1)
>>
>> /* S5P_DAC_CONTROL */
>> #define S5P_DAC_ENABLE (1)
>> diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
>> index b1d82cc..3cd43f2 100644
>> --- a/arch/arm/plat-samsung/Makefile
>> +++ b/arch/arm/plat-samsung/Makefile
>> @@ -49,6 +49,9 @@ obj-$(CONFIG_S3C_DEV_RTC) += dev-rtc.o
>> obj-$(CONFIG_SAMSUNG_DEV_ADC) += dev-adc.o
>> obj-$(CONFIG_SAMSUNG_DEV_TS) += dev-ts.o
>>
>> +# Device setup - MIPI-DSI
>> +obj-$(CONFIG_S5P_MIPI_DSI) += setup-dsim.o
>> +
>> # DMA support
>>
>> obj-$(CONFIG_S3C_DMA) += dma.o
>> diff --git a/arch/arm/plat-samsung/include/plat/dsim.h b/arch/arm/plat-samsung/include/plat/dsim.h
>> new file mode 100644
>> index 0000000..28bc595
>> --- /dev/null
>> +++ b/arch/arm/plat-samsung/include/plat/dsim.h
>> @@ -0,0 +1,470 @@
>
>
>> + * driver structure for mipi-dsi based lcd panel.
>> + *
>> + * this structure should be registered by lcd panel driver.
>> + * mipi-dsi driver seeks lcd panel registered through name field
>> + * and calls these callback functions in appropriate time.
>> + */
>> +struct mipi_lcd_driver {
>> + s8 name[64];
>
> how about an 'char *' here instead of reserving 64bytes?
>
Ok, 'char *' is better.
>> + s32 (*init)(struct device *dev);
>> + void (*display_on)(struct device *dev);
>> + s32 (*set_link)(struct mipi_ddi_platform_data *pd);
>> + s32 (*probe)(struct device *dev);
>> + s32 (*remove)(struct device *dev);
>> + void (*shutdown)(struct device *dev);
>> + s32 (*suspend)(struct device *dev, pm_message_t mesg);
>> + s32 (*resume)(struct device *dev);
>> +};
>
> Some of this should be already covered under the existing
> lcd interface?
>
you mean, lcd class(lcd.c)?
these callbacks would be registered to master driver (s5p-dsim.c).
Could you explain in more detail?
>> diff --git a/arch/arm/plat-samsung/include/plat/mipi_ddi.h b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
>> new file mode 100644
>> index 0000000..57ed613
>> --- /dev/null
>> +++ b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
>> @@ -0,0 +1,98 @@
>> +/* linux/arm/arch/mach-s5pc110/include/mach/mipi_ddi.h
>> + *
>> + * definitions for DDI based MIPI-DSI.
>> + *
>> + * Copyright (c) 2009 Samsung Electronics
>> + * InKi Dae <inki.dae@samsung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> +*/
>> +
>> +#ifndef _MIPI_DDI_H
>> +#define _MIPI_DDI_H
>> +
>> +enum mipi_ddi_interface {
>> + RGB_IF = 0x4000,
>> + I80_IF = 0x8000,
>> + YUV_601 = 0x10000,
>> + YUV_656 = 0x20000,
>> + MIPI_VIDEO = 0x1000,
>> + MIPI_COMMAND = 0x2000,
>> +};
>> +
>> +enum mipi_ddi_panel_select {
>> + DDI_MAIN_LCD = 0,
>> + DDI_SUB_LCD = 1,
>> +};
>> +
>> +enum mipi_ddi_model {
>> + S6DR117 = 0,
>> +};
>> +
>> +enum mipi_ddi_parameter {
>> + /* DSIM video interface parameter */
>> + DSI_VIRTUAL_CH_ID = 0,
>> + DSI_FORMAT = 1,
>> + DSI_VIDEO_MODE_SEL = 2,
>> +};
>> +
>> +struct lcd_device;
>> +struct fb_info;
>> +
>> +struct mipi_ddi_platform_data {
>> + void *dsim_data;
>> + /*
>> + * it is used for command mode lcd panel and
>> + * when all contents of framebuffer in panel module are transfered
>> + * to lcd panel it occurs te signal.
>> + *
>> + * note:
>> + * - in case of command mode(cpu mode), it should be triggered only
>> + * when TE signal of lcd panel and frame done interrupt of display
>> + * controller or mipi controller occurs.
>> + */
>> + unsigned int te_irq;
>> +
>> + /*
>> + * it is used for PM stable time at te interrupt handler and
>> + * could be used according to lcd panel characteristic or not.
>> + */
>> + unsigned int resume_complete;
>> +
>> + int (*lcd_reset) (struct lcd_device *ld);
>> + int (*lcd_power_on) (struct lcd_device *ld, int enable);
>> + int (*backlight_on) (int enable);
>> +
>> + /* transfer command to lcd panel at LP mode. */
>> + int (*cmd_write) (void *dsim_data, unsigned int data_id,
>> + unsigned int data0, unsigned int data1);
>> + int (*cmd_read) (void *dsim_data, unsigned int data_id,
>> + unsigned int data0, unsigned int data1);
>> + /*
>> + * get the status that all screen data have been transferred
>> + * to mipi-dsi.
>> + */
>> + int (*get_dsim_frame_done) (void *dsim_data);
>> + int (*clear_dsim_frame_done) (void *dsim_data);
>> +
>> + /*
>> + * changes mipi transfer mode to LP or HS mode.
>> + *
>> + * LP mode needs when some commands like gamma values transfers
>> + * to lcd panel.
>> + */
>> + int (*change_dsim_transfer_mode) (int mode);
>> +
>> + /* get frame done status of display controller. */
>> + int (*get_fb_frame_done) (struct fb_info *info);
>> + /* trigger display controller in case of cpu mode. */
>> + void (*trigger) (struct fb_info *info);
>> +
>> + unsigned int reset_delay;
>> + unsigned int power_on_delay;
>> + unsigned int power_off_delay;
>> +};
>> +
>> +#endif /* _MIPI_DDI_H */
>> diff --git a/arch/arm/plat-samsung/include/plat/regs-dsim.h b/arch/arm/plat-samsung/include/plat/regs-dsim.h
>> new file mode 100644
>> index 0000000..dc83089
>> --- /dev/null
>> +++ b/arch/arm/plat-samsung/include/plat/regs-dsim.h
>> @@ -0,0 +1,281 @@
> +
>> +/* S5P_DSIM_TIMEOUT */
>> +#define DSIM_LPDR_TOUT_SHIFT (0)
>> +#define DSIM_BTA_TOUT_SHIFT (16)
>> +#define DSIM_LPDR_TOUT(x) (((x) & 0xffff) << DSIM_LPDR_TOUT_SHIFT)
>> +#define DSIM_BTA_TOUT(x) (((x) & 0xff) << DSIM_BTA_TOUT_SHIFT)
>> +
>> +/* S5P_DSIM_CLKCTRL */
>> +#define DSIM_ESC_PRESCALER_SHIFT (0)
>> +#define DSIM_LANE_ESC_CLKEN_SHIFT (19)
>> +#define DSIM_BYTE_CLKEN_SHIFT (24)
>> +#define DSIM_BYTE_CLK_SRC_SHIFT (25)
>> +#define DSIM_PLL_BYPASS_SHIFT (27)
>> +#define DSIM_ESC_CLKEN_SHIFT (28)
>> +#define DSIM_TX_REQUEST_HSCLK_SHIFT (31)
>> +#define DSIM_ESC_PRESCALER(x) (((x) & 0xffff) << \
>> + DSIM_ESC_PRESCALER_SHIFT)
>> +#define DSIM_LANE_ESC_CLKEN(x) (((x) & 0x1f) << \
>> + DSIM_LANE_ESC_CLKEN_SHIFT)
>> +#define DSIM_BYTE_CLK_ENABLE (1 << DSIM_BYTE_CLKEN_SHIFT)
>> +#define DSIM_BYTE_CLK_DISABLE (0 << DSIM_BYTE_CLKEN_SHIFT)
>> +#define DSIM_BYTE_CLKSRC(x) (((x) & 0x3) << DSIM_BYTE_CLK_SRC_SHIFT)
>> +#define DSIM_PLL_BYPASS_PLL (0 << DSIM_PLL_BYPASS_SHIFT)
>> +#define DSIM_PLL_BYPASS_EXTERNAL (1 << DSIM_PLL_BYPASS_SHIFT)
>> +#define DSIM_ESC_CLKEN_ENABLE (1 << DSIM_ESC_CLKEN_SHIFT)
>> +#define DSIM_ESC_CLKEN_DISABLE (0 << DSIM_ESC_CLKEN_SHIFT)
>
>
>> +
>> +#include <plat/dsim.h>
>> +#include <plat/clock.h>
>> +#include <plat/regs-dsim.h>
>> +
>> +static int s5p_dsim_enable_d_phy(struct dsim_global *dsim, unsigned int enable)
>
> I suppose enable should be bool,
>
>> +{
>> + unsigned int reg;
>> +
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim is NULL.\n");
>> + return -EFAULT;
>> + }
>
> Is it likely to be NULL? If unlikely then a simple warning and return
> -EFAULT.
>
NULL in the code development process, the problem is to know it.
it would be cleanned.
>> +
>> + reg = (readl(S5P_MIPI_CONTROL)) & ~(1 << 0);
>
> extra () not really needed
>
>> + reg |= (enable << 0);
>> + writel(reg, S5P_MIPI_CONTROL);
>> +
>> + dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
>> +
>> + return 0;
>> +}
>> +
>> +static int s5p_dsim_enable_dsi_master(struct dsim_global *dsim,
>> + unsigned int enable)
>> +{
>> + unsigned int reg;
>> +
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim is NULL.\n");
>> + return -EFAULT;
>> + }
>> +
>> + reg = (readl(S5P_MIPI_CONTROL)) & ~(1 << 2);
>> + reg |= (enable << 2);
>> + writel(reg, S5P_MIPI_CONTROL);
>> +
>> + dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
>> +
>> + return 0;
>> +}
>> +
>> +int s5p_dsim_part_reset(struct dsim_global *dsim)
>> +{
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim is NULL.\n");
>> + return -EFAULT;
>> + }
>> +
>> + writel(S5P_MIPI_M_RESETN, S5P_MIPI_PHY_CON0);
>> +
>> + dev_dbg(dsim->dev, "%s\n", __func__);
>> +
>> + return 0;
>> +}
>> +
>> +int s5p_dsim_init_d_phy(struct dsim_global *dsim)
>> +{
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim is NULL.\n");
>> + return -EFAULT;
>> + }
>> +
>> + /* enable D-PHY */
>> + s5p_dsim_enable_d_phy(dsim, 1);
>> +
>> + /* enable DSI master block */
>> + s5p_dsim_enable_dsi_master(dsim, 1);
>
> you ould probably have omitted the comments on these.
>
I will add more comments.
>> +
>> + dev_dbg(dsim->dev, "%s\n", __func__);
>> +
>> + return 0;
>> +}
>> +
>> +int s5p_dsim_mipi_power(struct dsim_global *dsim, void *p_mipi_1_1v,
>> + void *p_mipi_1_8v, int enable)
>
> enable could be bool.
>
ok.
>> +{
>> + struct regulator *r_mipi_1_1v = NULL, *r_mipi_1_8v = NULL;
>
> No need to init to NULL when you just cast them a few lines done.
>
ok.
>> + int ret = -1;
>> +
>> + r_mipi_1_1v = (struct regulator *) p_mipi_1_1v;
>> + r_mipi_1_8v = (struct regulator *) p_mipi_1_8v;
>
> It would be better just to call these regulators and stick with one type
> for these.
>
Okay, I'll even clean up the code
>
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim is NULL.\n");
>> + return -EFAULT;
>> + }
>
> this is getting repetitive, is it really necessary?
>
>
>> +
>> + if (IS_ERR(r_mipi_1_1v) || IS_ERR(r_mipi_1_8v)) {
>> + dev_err(dsim->dev, "r_mipi_1_1v or r_mipi_1_8v is NULL.\n");
>> + return -EINVAL;
>> + }
>> +
>> + if (enable) {
>> + if (r_mipi_1_1v)
>> + ret = regulator_enable(r_mipi_1_1v);
>> +
>> + if (ret < 0) {
>> + dev_err(dsim->dev,
>> + "failed to enable regulator mipi_1_1v.\n");
>> + return ret;
>> + }
>> +
>> + if (r_mipi_1_8v)
>> + ret = regulator_enable(r_mipi_1_8v);
>> +
>> + if (ret < 0) {
>> + dev_err(dsim->dev,
>> + "failed to enable regulator mipi_1_8v.\n");
>> + return ret;
>> + }
>> + } else {
>> + if (r_mipi_1_1v)
>> + ret = regulator_force_disable(r_mipi_1_1v);
>> + if (ret < 0) {
>> + dev_err(dsim->dev,
>> + "failed to disable regulator mipi_1_1v.\n");
>> + return ret;
>> + }
>> +
>> + if (r_mipi_1_8v)
>> + ret = regulator_force_disable(r_mipi_1_8v);
>> + if (ret < 0) {
>> + dev_err(dsim->dev,
>> + "failed to disable regulator mipi_1_8v.\n");
>> + return ret;
>> + }
>> + }
>> +
>> + return ret;
>> +}
>> diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
>> index 3d94a14..c916ac1 100644
>> --- a/drivers/video/Kconfig
>> +++ b/drivers/video/Kconfig
>> @@ -1930,7 +1930,7 @@ config FB_TMIO_ACCELL
>>
>> config FB_S3C
>> tristate "Samsung S3C framebuffer support"
>> - depends on FB && ARCH_S3C64XX
>> + depends on FB && (ARCH_S3C64XX || ARCH_S5PV210)
>> select FB_CFB_FILLRECT
>> select FB_CFB_COPYAREA
>> select FB_CFB_IMAGEBLIT
>> @@ -1975,6 +1975,13 @@ config FB_S3C2410_DEBUG
>> Turn on debugging messages. Note that you can set/unset at run time
>> through sysfs
>>
>> +config S5P_MIPI_DSI
>> + tristate "Samsung SoC MIPI-DSI support."
>> + depends on FB_S3C && ARCH_S5PV210
>> + default n
>> + ---help---
>> + This enables support for MIPI-DSI device.
>> +
>> config FB_NUC900
>> bool "NUC900 LCD framebuffer support"
>> depends on FB && ARCH_W90X900
>> diff --git a/drivers/video/Makefile b/drivers/video/Makefile
>> index ddc2af2..d841433 100644
>> --- a/drivers/video/Makefile
>> +++ b/drivers/video/Makefile
>> @@ -115,6 +115,8 @@ obj-$(CONFIG_FB_SH7760) += sh7760fb.o
>> obj-$(CONFIG_FB_IMX) += imxfb.o
>> obj-$(CONFIG_FB_S3C) += s3c-fb.o
>> obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o
>> +obj-$(CONFIG_S5P_MIPI_DSI) += s5p-dsim.o s5p_dsim_common.o \
>> + s5p_dsim_lowlevel.o
>> obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o
>> obj-$(CONFIG_FB_COBALT) += cobalt_lcdfb.o
>> obj-$(CONFIG_FB_PNX4008_DUM) += pnx4008/
>> diff --git a/drivers/video/s5p-dsim.c b/drivers/video/s5p-dsim.c
>> new file mode 100644
>> index 0000000..96893bc
>> --- /dev/null
>> +++ b/drivers/video/s5p-dsim.c
>> @@ -0,0 +1,483 @@
>> +/* linux/drivers/video/samsung/s5p-dsim.c
>> + *
>> + * Samsung MIPI-DSIM driver.
>> + *
>> + * InKi Dae, <inki.dae@samsung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> +*/
>> +
>> +#include <linux/module.h>
>> +#include <linux/kernel.h>
>> +#include <linux/errno.h>
>> +#include <linux/clk.h>
>> +#include <linux/mutex.h>
>> +#include <linux/wait.h>
>> +#include <linux/fs.h>
>> +#include <linux/mm.h>
>> +#include <linux/fb.h>
>> +#include <linux/ctype.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/io.h>
>> +#include <linux/irq.h>
>> +#include <linux/memory.h>
>> +#include <linux/delay.h>
>> +#include <linux/interrupt.h>
>> +#include <linux/kthread.h>
>> +#include <linux/regulator/consumer.h>
>> +#include <linux/notifier.h>
>> +
>> +#include <plat/fb.h>
>> +#include <plat/regs-dsim.h>
>> +#include <plat/dsim.h>
>> +#include <plat/mipi_ddi.h>
>> +
>> +#include <mach/map.h>
>> +
>> +#include "s5p_dsim_common.h"
>> +
>> +struct mipi_lcd_info {
>> + struct list_head list;
>> + struct mipi_lcd_driver *mipi_drv;
>> +};
>> +
>> +static LIST_HEAD(lcd_info_list);
>> +static DEFINE_MUTEX(mipi_lock);
>> +
>> +struct dsim_global dsim;
>> +
>> +struct s5p_platform_dsim *to_dsim_plat(struct device *dev)
>> +{
>> + struct platform_device *pdev = to_platform_device(dev);
>> +
>> + return (struct s5p_platform_dsim *)pdev->dev.platform_data;
>> +}
>
> that's return dev->platform_data.
>
>> +/*
>> + * notifier callback function for fb_blank
>> + * - this function would be called by device specific fb_blank.
>> + */
>> +static int s5p_dsim_notifier_callback(struct notifier_block *self,
>> + unsigned long event, void *data)
>> +{
>> + pm_message_t pm;
>> +
>> + pm.event = 0;
>
> do we really need to produce this pm structure.
>
It's unnecessary code, entered by mistake.
it will be removed.
>> + switch (event) {
>> + case FB_BLANK_UNBLANK:
>> + case FB_BLANK_NORMAL:
>> + if (dsim.pd->mipi_power)
>> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
>> + (void *) dsim.r_mipi_1_8v, 1);
>> +
>> + clk_enable(dsim.clock);
>> +
>> + if (dsim.mipi_drv->resume)
>> + dsim.mipi_drv->resume(dsim.dev);
>> +
>> + s5p_dsim_init_dsim(&dsim);
>> + s5p_dsim_init_link(&dsim);
>> +
>> + s5p_dsim_set_hs_enable(&dsim);
>> + s5p_dsim_set_data_transfer_mode(&dsim,
>> + DSIM_TRANSFER_BYCPU, 1);
>> +
>> + /* it needs delay for stabilization */
>> + mdelay(dsim.pd->delay_for_stabilization);
>> +
>> + if (dsim.mipi_drv->init)
>> + dsim.mipi_drv->init(dsim.dev);
>> + else
>> + dev_warn(dsim.dev, "init func is null.\n");
>> +
>> + s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
>> +
>> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
>> + dsim.mipi_ddi_pd->resume_complete = 1;
>> +
>> + dev_dbg(dsim.dev, "FB_BLANK_NORMAL or UNBLANK.\n");
>> +
>> + break;
>> + case FB_BLANK_POWERDOWN:
>> + dsim.mipi_ddi_pd->resume_complete = 0;
>> +
>> + if (dsim.mipi_drv->suspend)
>> + dsim.mipi_drv->suspend(dsim.dev, pm);
>> +
>> + clk_disable(dsim.clock);
>> +
>> + if (dsim.pd->mipi_power)
>> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
>> + (void *) dsim.r_mipi_1_8v, 0);
>> +
>> + dev_dbg(dsim.dev, "FB_BLANK_POWERDOWN.\n");
>> + break;
>> + default:
>> + dev_warn(dsim.dev, "unknown FB_BLANK command.\n");
>> + break;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +static int s5p_dsim_register_notif(struct device *dev)
>> +{
>> + memset(&dsim.s3cfb_notif, 0, sizeof(struct notifier_block));
>> + dsim.s3cfb_notif.notifier_call = s5p_dsim_notifier_callback;
>> +
>> + return 0/*s3cfb_register_client(&dsim.s3cfb_notif)*/;
>> +}
>> +
>> +static irqreturn_t s5p_dsim_interrupt_handler(int irq, void *dev_id)
>> +{
>> + disable_irq(irq);
>> +
>> + /* additional work. */
>> +
>> + enable_irq(irq);
>> +
>> + return IRQ_HANDLED;
>> +}
>
> ?
>
>> +
>> +int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv)
>> +{
>> + struct mipi_lcd_info *lcd_info = NULL;
>> +
>> + lcd_info = kmalloc(sizeof(struct mipi_lcd_info), GFP_KERNEL);
>> + if (lcd_info == NULL)
>> + return -ENOMEM;
>> +
>> + lcd_info->mipi_drv = kmalloc(sizeof(struct mipi_lcd_driver),
>> + GFP_KERNEL);
>> + if (lcd_info->mipi_drv == NULL)
>> + return -ENOMEM;
>> +
>> +
>> + memcpy(lcd_info->mipi_drv, lcd_drv, sizeof(struct mipi_lcd_driver));
>> +
>> + mutex_lock(&mipi_lock);
>> + list_add_tail(&lcd_info->list, &lcd_info_list);
>> + mutex_unlock(&mipi_lock);
>> +
>> + dev_dbg(dsim.dev, "registered panel driver(%s) to mipi-dsi driver.\n",
>> + lcd_drv->name);
>> +
>> + return 0;
>> +}
>> +
>> +/*
>> + * This function is wrapper for changing transfer mode.
>> + * It is used to in panel driver before and after changing gamma value.
>> + */
>> +static int s5p_dsim_change_transfer_mode(int mode)
>> +{
>> + if (mode < 0 || mode > 1) {
>> + dev_err(dsim.dev, "mode range should be 0 or 1.\n");
>> + return -EFAULT;
>> + }
>> +
>> + if (mode == 0)
>> + s5p_dsim_set_data_transfer_mode(&dsim,
>> + DSIM_TRANSFER_BYCPU, mode);
>> + else
>> + s5p_dsim_set_data_transfer_mode(&dsim,
>> + DSIM_TRANSFER_BYLCDC, mode);
>> +
>> + return 0;
>> +}
>> +
>> +struct mipi_lcd_driver *scan_mipi_driver(const char *name)
>> +{
>> + struct mipi_lcd_info *lcd_info;
>> + struct mipi_lcd_driver *mipi_drv = NULL;
>> +
>> + mutex_lock(&mipi_lock);
>> +
>> + dev_dbg(dsim.dev, "find lcd panel driver(%s).\n",
>> + name);
>> +
>> + list_for_each_entry(lcd_info, &lcd_info_list, list) {
>> + mipi_drv = lcd_info->mipi_drv;
>> +
>> + if ((strcmp(mipi_drv->name, name)) == 0) {
>> + mutex_unlock(&mipi_lock);
>> + dev_dbg(dsim.dev, "found!!!(%s).\n", mipi_drv->name);
>> + return mipi_drv;
>> + }
>> + }
>> +
>> + dev_warn(dsim.dev, "failed to find lcd panel driver(%s).\n",
>> + name);
>> +
>> + mutex_unlock(&mipi_lock);
>> +
>> + return NULL;
>> +}
>> +
>> +static int s5p_dsim_probe(struct platform_device *pdev)
>> +{
>> + struct resource *res;
>> + int ret = -1;
>> +
>> + dsim.pd = to_dsim_plat(&pdev->dev);
>> + dsim.dev = &pdev->dev;
>> +
>> + /* set dsim config data, dsim lcd config data and lcd panel data. */
>> + dsim.dsim_info = dsim.pd->dsim_info;
>> + dsim.dsim_lcd_info = dsim.pd->dsim_lcd_info;
>> + dsim.lcd_panel_info =
>> + (struct fb_videomode *) dsim.dsim_lcd_info->lcd_panel_info;
>
> why isn't this in the correct type to begin with.
>
I used 'void *' type to avoid including header.
>> + dsim.mipi_ddi_pd =
>> + (struct mipi_ddi_platform_data *)
>> + dsim.dsim_lcd_info->mipi_ddi_pd;
>
> and again.
>
also.
>> + dsim.mipi_ddi_pd->resume_complete = 0;
>> +
>> + dsim.r_mipi_1_1v = regulator_get(&pdev->dev, "VMIPI_1.1V");
>> + if (IS_ERR(dsim.r_mipi_1_1v)) {
>> + dev_err(&pdev->dev, "failed to get regulator VMIPI_1.1V.\n");
>> + goto regulator_get_err;
>> + }
>> +
>> + dsim.r_mipi_1_8v = regulator_get(&pdev->dev, "VMIPI_1.8V");
>> + if (IS_ERR(dsim.r_mipi_1_8v)) {
>> + dev_err(&pdev->dev, "failed to get regulator VMIPI_1.8V.\n");
>> + goto regulator_get_err;
>> + }
>> +
>> + /* clock */
>> + dsim.clock = clk_get(&pdev->dev, dsim.pd->clk_name);
>> + if (IS_ERR(dsim.clock)) {
>> + dev_err(&pdev->dev, "failed to get dsim clock source\n");
>> + return -EINVAL;
>> + }
>> +
>> + clk_enable(dsim.clock);
>> +
>> + /* io memory */
>> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>> + if (!res) {
>> + dev_err(&pdev->dev, "failed to get io memory region\n");
>> + ret = -EINVAL;
>> + goto err_clk_disable;
>> + }
>> +
>> + /* request mem region */
>> + res = request_mem_region(res->start,
>> + res->end - res->start + 1, pdev->name);
> resource_size()
>
ok.
>> + if (!res) {
>> + dev_err(&pdev->dev, "failed to request io memory region\n");
>> + ret = -EINVAL;
>> + goto err_clk_disable;
>> + }
>> +
>> + /* ioremap for register block */
>> + dsim.reg_base = (unsigned int) ioremap(res->start,
>> + res->end - res->start + 1);
>
> ARGH. dsim.reg_base should be 'void __iomem *'
>
ok, it would be modified.
>> + if (!dsim.reg_base) {
>> + dev_err(&pdev->dev, "failed to remap io region\n");
>> + ret = -EINVAL;
>> + goto err_clk_disable;
>> + }
>> +
>> + /* it is used for MIPI-DSI based lcd panel driver. */
>> + dsim.mipi_ddi_pd->dsim_data = (void *)&dsim;
>> +
>> + /*
>> + * it uses frame done interrupt handler
>> + * only in case of MIPI Video mode.
>> + */
>> + if (dsim.dsim_lcd_info->e_interface == DSIM_VIDEO) {
>> + dsim.irq = platform_get_irq(pdev, 0);
>> + if (request_irq(dsim.irq, s5p_dsim_interrupt_handler,
>> + IRQF_TRIGGER_RISING, "mipi-dsi", &dsim)) {
>
> do internal interrupts really need a trigger flag?
>
>> + dev_err(&pdev->dev, "request_irq failed.\n");
>> + goto err_trigger_irq;
>> + }
>> + }
>> +
>> + if (dsim.pd->mipi_power)
>> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
>> + (void *) dsim.r_mipi_1_8v, 1);
>> + else {
>> + dev_err(&pdev->dev, "mipi_power is NULL.\n");
>> + goto mipi_power_err;
>> + }
>> +
>> + /* find lcd panel driver registered to mipi-dsi driver. */
>> + dsim.mipi_drv = scan_mipi_driver(dsim.pd->lcd_panel_name);
>> + if (dsim.mipi_drv == NULL) {
>> + dev_err(&pdev->dev, "mipi_drv is NULL.\n");
>> + goto mipi_drv_err;
>> + }
>> +
>> + /* register callback functions that lcd panel driver needs. */
>> + dsim.mipi_ddi_pd->cmd_write = s5p_dsim_wr_data;
>> + dsim.mipi_ddi_pd->cmd_read = NULL;
>> + dsim.mipi_ddi_pd->get_dsim_frame_done =
>> + s5p_dsim_get_frame_done_status;
>> + dsim.mipi_ddi_pd->clear_dsim_frame_done = s5p_dsim_clear_frame_done;
>> + dsim.mipi_ddi_pd->change_dsim_transfer_mode =
>> + s5p_dsim_change_transfer_mode;
>> + dsim.mipi_ddi_pd->get_fb_frame_done = dsim.pd->get_fb_frame_done;
>> + dsim.mipi_ddi_pd->trigger = dsim.pd->trigger;
>
> this looks like it should have been in a struture to be copied.
>
ok, it's good point. it would be modified.
>> + /* set lcd panel driver link */
>> + ret = dsim.mipi_drv->set_link(dsim.mipi_ddi_pd);
>> + if (ret < 0) {
>> + dev_err(&pdev->dev, "failed to set link.\n");
>> + goto mipi_drv_err;
>> + }
>> +
>> + dsim.mipi_drv->probe(&pdev->dev);
>> +
>> + s5p_dsim_init_dsim(&dsim);
>> + s5p_dsim_init_link(&dsim);
>> +
>> + s5p_dsim_set_hs_enable(&dsim);
>> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
>> +
>> + /* it needs delay for stabilization */
>> + mdelay(dsim.pd->delay_for_stabilization);
>> +
>> + /* initialize lcd panel */
>> + if (dsim.mipi_drv->init)
>> + dsim.mipi_drv->init(&pdev->dev);
>> + else
>> + dev_warn(&pdev->dev, "init func is null.\n");
>> +
>> + if (dsim.mipi_drv->display_on)
>> + dsim.mipi_drv->display_on(&pdev->dev);
>> + else
>> + dev_warn(&pdev->dev, "display_on func is null.\n");
>> +
>> + s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
>> +
>> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
>> +
>> + s5p_dsim_register_notif(&pdev->dev);
>> +
>> + /* in case of command mode, trigger. */
>> + if (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) {
>> + if (dsim.pd->trigger)
>> + dsim.pd->trigger(registered_fb[0]);
>> + else
>> + dev_warn(&pdev->dev, "trigger is null.\n");
>> + }
>> +
>> + dev_info(&pdev->dev, "mipi-dsi driver(%s mode) has been probed.\n",
>> + (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) ?
>> + "CPU" : "RGB");
>> +
>> + return 0;
>> +
>> +err_trigger_irq:
>> +mipi_drv_err:
>> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
>> + (void *) dsim.r_mipi_1_8v, 0);
>> +
>> +mipi_power_err:
>> + iounmap((void __iomem *) dsim.reg_base);
>> +
>> +err_clk_disable:
>> + clk_disable(dsim.clock);
>> +
>> +regulator_get_err:
>> +
>> + return ret;
>> +
>> +}
>> +
>> +static int s5p_dsim_remove(struct platform_device *pdev)
>> +{
>> + return 0;
>> +}
>> +
>> +#ifdef CONFIG_PM
>> +int s5p_dsim_suspend(struct platform_device *pdev, pm_message_t state)
>> +{
>> + dsim.mipi_ddi_pd->resume_complete = 0;
>> +
>> + if (dsim.mipi_drv->suspend)
>> + dsim.mipi_drv->suspend(&pdev->dev, state);
>> +
>> + clk_disable(dsim.clock);
>> +
>> + if (dsim.pd->mipi_power)
>> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
>> + (void *) dsim.r_mipi_1_8v, 0);
>> +
>> + return 0;
>> +}
>> +
>> +int s5p_dsim_resume(struct platform_device *pdev)
>> +{
>> + if (dsim.pd->mipi_power)
>> + dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
>> + (void *) dsim.r_mipi_1_8v, 1);
>> +
>> + clk_enable(dsim.clock);
>> +
>> + if (dsim.mipi_drv->resume)
>> + dsim.mipi_drv->resume(&pdev->dev);
>> +
>> + s5p_dsim_init_dsim(&dsim);
>> + s5p_dsim_init_link(&dsim);
>> +
>> + s5p_dsim_set_hs_enable(&dsim);
>> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
>> +
>> + /* it needs delay for stabilization */
>> + mdelay(dsim.pd->delay_for_stabilization);
>> +
>> + /* initialize lcd panel */
>> + if (dsim.mipi_drv->init)
>> + dsim.mipi_drv->init(&pdev->dev);
>> + else
>> + dev_warn(&pdev->dev, "init func is null.\n");
>> +
>> + s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
>> +
>> + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
>> +
>> + dsim.mipi_ddi_pd->resume_complete = 1;
>> +
>> + return 0;
>> +}
>> +#else
>> +#define s5p_dsim_suspend NULL
>> +#define s5p_dsim_resume NULL
>> +#endif
>> +
>> +static struct platform_driver s5p_dsim_driver = {
>> + .probe = s5p_dsim_probe,
>> + .remove = s5p_dsim_remove,
>> + .suspend = s5p_dsim_suspend,
>> + .resume = s5p_dsim_resume,
>> + .driver = {
>> + .name = "s5p-dsim",
>> + .owner = THIS_MODULE,
>> + },
>> +};
>> +
>> +static int s5p_dsim_register(void)
>> +{
>> + platform_driver_register(&s5p_dsim_driver);
>> +
>> + return 0;
>> +}
>> +
>> +static void s5p_dsim_unregister(void)
>> +{
>> + platform_driver_unregister(&s5p_dsim_driver);
>> +}
>> +
>> +module_init(s5p_dsim_register);
>> +module_exit(s5p_dsim_unregister);
>> +
>> +MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
>> +MODULE_DESCRIPTION("Samusung MIPI-DSIM driver");
>> +MODULE_LICENSE("GPL");
>> diff --git a/drivers/video/s5p_dsim_common.c b/drivers/video/s5p_dsim_common.c
>> new file mode 100644
>> index 0000000..77724dc
>> --- /dev/null
>> +++ b/drivers/video/s5p_dsim_common.c
>> @@ -0,0 +1,753 @@
>> +/* linux/drivers/video/samsung/s5p_dsim_common.c
>> + *
>> + * Samsung MIPI-DSIM common driver.
>> + *
>> + * InKi Dae, <inki.dae@samsung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> +*/
>> +
>> +#include <linux/module.h>
>> +#include <linux/kernel.h>
>> +#include <linux/errno.h>
>> +#include <linux/mutex.h>
>> +#include <linux/wait.h>
>> +#include <linux/fs.h>
>> +#include <linux/mm.h>
>> +#include <linux/fb.h>
>> +#include <linux/ctype.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/io.h>
>> +#include <linux/memory.h>
>> +#include <linux/delay.h>
>> +#include <linux/kthread.h>
>> +
>> +#include <plat/fb.h>
>> +#include <plat/regs-dsim.h>
>> +
>> +#include <mach/map.h>
>> +#include <plat/dsim.h>
>> +#include <plat/mipi_ddi.h>
>> +
>> +#include "s5p_dsim_lowlevel.h"
>> +
>> +static void s5p_dsim_long_data_wr(struct dsim_global *dsim, unsigned int data0,
>> + unsigned int data1)
>> +{
>> + unsigned int data_cnt = 0, payload = 0;
>> +
>> + /* in case that data count is more then 4 */
>> + for (data_cnt = 0; data_cnt < data1; data_cnt += 4) {
>> + /*
>> + * after sending 4bytes per one time,
>> + * send remainder data less then 4.
>> + */
>> + if ((data1 - data_cnt) < 4) {
>> + if ((data1 - data_cnt) == 3) {
>> + payload = *(u8 *)(data0 + data_cnt) |
>> + (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
>> + (*(u8 *)(data0 + (data_cnt + 2))) << 16;
>
> Erm, why wheren't these types kept as 'u8 *', this amount of casting
> should be ringing alarm bells all over the place.
>
>> + dev_dbg(dsim->dev, "count = 3 payload = %x, %x %x %x\n",
>> + payload, *(u8 *)(data0 + data_cnt),
>> + *(u8 *)(data0 + (data_cnt + 1)),
>> + *(u8 *)(data0 + (data_cnt + 2)));
>> + } else if ((data1 - data_cnt) == 2) {
>> + payload = *(u8 *)(data0 + data_cnt) |
>> + (*(u8 *)(data0 + (data_cnt + 1))) << 8;
>> + dev_dbg(dsim->dev,
>> + "count = 2 payload = %x, %x %x\n", payload,
>> + *(u8 *)(data0 + data_cnt),
>> + *(u8 *)(data0 + (data_cnt + 1)));
>> + } else if ((data1 - data_cnt) == 1) {
>> + payload = *(u8 *)(data0 + data_cnt);
>> + }
>> +
>> + s5p_dsim_wr_tx_data(dsim, payload);
>> + /* send 4bytes per one time. */
>> + } else {
>> + payload = *(u8 *)(data0 + data_cnt) |
>> + (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
>> + (*(u8 *)(data0 + (data_cnt + 2))) << 16 |
>> + (*(u8 *)(data0 + (data_cnt + 3))) << 24;
>> +
>> + dev_dbg(dsim->dev,
>> + "count = 4 payload = %x, %x %x %x %x\n",
>> + payload, *(u8 *)(data0 + data_cnt),
>> + *(u8 *)(data0 + (data_cnt + 1)),
>> + *(u8 *)(data0 + (data_cnt + 2)),
>> + *(u8 *)(data0 + (data_cnt + 3)));
>> +
>> + s5p_dsim_wr_tx_data(dsim, payload);
>> + }
>> + }
>> +}
>> +
>> +int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
>> + unsigned int data0, unsigned int data1)
>> +{
>> + struct dsim_global *dsim = NULL;
>> + unsigned int timeout = 5000 * 2;
>> + unsigned long delay_val, udelay;
>> + unsigned char check_rx_ack = 0;
>> +
>> + dsim = (struct dsim_global *)dsim_data;
>> +
>> + if (dsim == NULL) {
>> + dev_err(dsim->dev, "dsim_data is NULL.\n");
>> + return -EFAULT;
>> + }
>> +
>> +
>> + if (dsim->state == DSIM_STATE_ULPS) {
>> + dev_err(dsim->dev, "state is ULPS.\n");
>> +
>> + return -EINVAL;
>> + }
>> +
>> + delay_val = 1000000 / dsim->dsim_info->esc_clk;
>> + udelay = 10 * delay_val;
>> +
>> + mdelay(udelay);
>> +
>> + /* only if transfer mode is LPDT, wait SFR becomes empty. */
>> + if (dsim->state == DSIM_STATE_STOP) {
>> + while (!(s5p_dsim_get_fifo_state(dsim) &
>> + SFR_HEADER_EMPTY)) {
>> + if ((timeout--) > 0)
>> + mdelay(1);
>> + else {
>> + dev_err(dsim->dev,
>> + "SRF header fifo is not empty.\n");
>> + return -EINVAL;
>> + }
>> + }
>> + }
>> +
>> + switch (data_id) {
>> + /* short packet types of packet types for command. */
>> + case GEN_SHORT_WR_NO_PARA:
>> + case GEN_SHORT_WR_1_PARA:
>> + case GEN_SHORT_WR_2_PARA:
>> + case DCS_WR_NO_PARA:
>> + case DCS_WR_1_PARA:
>> + case SET_MAX_RTN_PKT_SIZE:
>> + s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
>> + (unsigned char) data0, (unsigned char) data1);
>> + if (check_rx_ack)
>> + /* process response func should be implemented */
>> + return 0;
>> + else
>> + return -EINVAL;
>> +
>> + /* general command */
>> + case CMD_OFF:
>> + case CMD_ON:
>> + case SHUT_DOWN:
>> + case TURN_ON:
>> + s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
>> + (unsigned char) data0, (unsigned char) data1);
>> + if (check_rx_ack)
>> + /* process response func should be implemented. */
>> + return 0;
>> + else
>> + return -EINVAL;
>> +
>> + /* packet types for video data */
>> + case VSYNC_START:
>> + case VSYNC_END:
>> + case HSYNC_START:
>> + case HSYNC_END:
>> + case EOT_PKT:
>> + return 0;
>> +
>> + /* short and response packet types for command */
>> + case GEN_RD_1_PARA:
>> + case GEN_RD_2_PARA:
>> + case GEN_RD_NO_PARA:
>> + case DCS_RD_NO_PARA:
>> + s5p_dsim_clear_interrupt(dsim, 0xffffffff);
>> + s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
>> + (unsigned char) data0, (unsigned char) data1);
>> + /* process response func should be implemented. */
>> + return 0;
>> +
>> + /* long packet type and null packet */
>> + case NULL_PKT:
>> + case BLANKING_PKT:
>> + return 0;
>> + case GEN_LONG_WR:
>> + case DCS_LONG_WR:
>> + {
>> + unsigned int size, data_cnt = 0, payload = 0;
>> +
>> + size = data1 * 4;
>> +
>> + /* if data count is less then 4, then send 3bytes data. */
>> + if (data1 < 4) {
>> + payload = *(u8 *)(data0) |
>> + *(u8 *)(data0 + 1) << 8 |
>> + *(u8 *)(data0 + 2) << 16;
>> +
>> + s5p_dsim_wr_tx_data(dsim, payload);
>> +
>> + dev_dbg(dsim->dev, "count = %d payload = %x,%x %x %x\n",
>> + data1, payload,
>> + *(u8 *)(data0 + data_cnt),
>> + *(u8 *)(data0 + (data_cnt + 1)),
>> + *(u8 *)(data0 + (data_cnt + 2)));
>> + /* in case that data count is more then 4 */
>> + } else
>> + s5p_dsim_long_data_wr(dsim, data0, data1);
>> +
>> + /* put data into header fifo */
>> + s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
>> + (unsigned char) (((unsigned short) data1) & 0xff),
>> + (unsigned char) ((((unsigned short) data1) & 0xff00) >>
>> + 8));
>> +
>> + }
>> + if (check_rx_ack)
>> + /* process response func should be implemented. */
>> + return 0;
>> + else
>> + return -EINVAL;
>> +
>> + /* packet typo for video data */
>> + case RGB565_PACKED:
>> + case RGB666_PACKED:
>> + case RGB666_LOOSLY:
>> + case RGB888_PACKED:
>> + if (check_rx_ack)
>> + /* process response func should be implemented. */
>> + return 0;
>> + else
>> + return -EINVAL;
>> + default:
>> + dev_warn(dsim->dev,
>> + "data id %x is not supported current DSI spec.\n",
>> + data_id);
>> +
>> + return -EINVAL;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +int s5p_dsim_init_header_fifo(struct dsim_global *dsim)
>> +{
>> + unsigned int cnt;
>> +
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + return -EFAULT;
>> + }
>> +
>> + for (cnt = 0; cnt < DSIM_HEADER_FIFO_SZ; cnt++)
>> + dsim->header_fifo_index[cnt] = -1;
>> + return 0;
>> +}
>> +
>> +int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned char enable)
>
> how about 'bool' for enable.
>
ok, it would be modified.
>> +{
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + return -EFAULT;
>> + }
>> +
>> + if (enable) {
>> + int sw_timeout = 1000;
>> + s5p_dsim_clear_interrupt(dsim, DSIM_PLL_STABLE);
>> + s5p_dsim_enable_pll(dsim, 1);
>> + while (1) {
>> + sw_timeout--;
>> + if (s5p_dsim_is_pll_stable(dsim))
>> + return 0;
>> + if (sw_timeout == 0)
>> + return -EINVAL;
>> + }
>> + } else
>> + s5p_dsim_enable_pll(dsim, 0);
>> +
>> + return 0;
>> +}
>> +
>> +unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
>> + unsigned char pre_divider, unsigned short main_divider,
>> + unsigned char scaler)
>> +{
>> + unsigned long dfin_pll, dfvco, dpll_out;
>> + unsigned char freq_band;
>> +
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + return 0;
>> + }
>> +
>> + dfin_pll = (MIPI_FIN / pre_divider);
>> +
>> + if (dfin_pll < 6 * 1000 * 1000 || dfin_pll > 12 * 1000 * 1000) {
>> + dev_warn(dsim->dev, "warning!!\n");
>> + dev_warn(dsim->dev, "fin_pll range is 6MHz ~ 12MHz\n");
>> + dev_warn(dsim->dev, "fin_pll of mipi dphy pll is %luMHz\n",
>> + (dfin_pll / 1000000));
>> +
>> + s5p_dsim_enable_afc(dsim, 0, 0);
>> + } else {
>> + if (dfin_pll < 7 * 1000000)
>> + s5p_dsim_enable_afc(dsim, 1, 0x1);
>> + else if (dfin_pll < 8 * 1000000)
>> + s5p_dsim_enable_afc(dsim, 1, 0x0);
>> + else if (dfin_pll < 9 * 1000000)
>> + s5p_dsim_enable_afc(dsim, 1, 0x3);
>> + else if (dfin_pll < 10 * 1000000)
>> + s5p_dsim_enable_afc(dsim, 1, 0x2);
>> + else if (dfin_pll < 11 * 1000000)
>> + s5p_dsim_enable_afc(dsim, 1, 0x5);
>> + else
>> + s5p_dsim_enable_afc(dsim, 1, 0x4);
>> + }
>> +
>> + dfvco = dfin_pll * main_divider;
>> + dev_dbg(dsim->dev, "dfvco = %lu, dfin_pll = %lu, main_divider = %d\n",
>> + dfvco, dfin_pll, main_divider);
>> + if (dfvco < 500000000 || dfvco > 1000000000) {
>> + dev_warn(dsim->dev, "Caution!!\n");
>> + dev_warn(dsim->dev, "fvco range is 500MHz ~ 1000MHz\n");
>> + dev_warn(dsim->dev, "fvco of mipi dphy pll is %luMHz\n",
>> + (dfvco / 1000000));
>> + }
>> +
>> + dpll_out = dfvco / (1 << scaler);
>> + dev_dbg(dsim->dev, "dpll_out = %lu, dfvco = %lu, scaler = %d\n",
>> + dpll_out, dfvco, scaler);
>> + if (dpll_out < 100 * 1000000)
>> + freq_band = 0x0;
>> + else if (dpll_out < 120 * 1000000)
>> + freq_band = 0x1;
>> + else if (dpll_out < 170 * 1000000)
>> + freq_band = 0x2;
>> + else if (dpll_out < 220 * 1000000)
>> + freq_band = 0x3;
>> + else if (dpll_out < 270 * 1000000)
>> + freq_band = 0x4;
>> + else if (dpll_out < 320 * 1000000)
>> + freq_band = 0x5;
>> + else if (dpll_out < 390 * 1000000)
>> + freq_band = 0x6;
>> + else if (dpll_out < 450 * 1000000)
>> + freq_band = 0x7;
>> + else if (dpll_out < 510 * 1000000)
>> + freq_band = 0x8;
>> + else if (dpll_out < 560 * 1000000)
>> + freq_band = 0x9;
>> + else if (dpll_out < 640 * 1000000)
>> + freq_band = 0xa;
>> + else if (dpll_out < 690 * 1000000)
>> + freq_band = 0xb;
>> + else if (dpll_out < 770 * 1000000)
>> + freq_band = 0xc;
>> + else if (dpll_out < 870 * 1000000)
>> + freq_band = 0xd;
>> + else if (dpll_out < 950 * 1000000)
>> + freq_band = 0xe;
>> + else
>> + freq_band = 0xf;
>
> something says a divide down before the ompatr would have been
> a good idea, it is almost a table.
>
>> + dev_dbg(dsim->dev, "freq_band = %d\n", freq_band);
>> +
>> + s5p_dsim_pll_freq(dsim, pre_divider, main_divider, scaler);
>> +
>> + {
>> + unsigned char temp0, temp1;
>> +
>> + temp0 = 0;
>> + s5p_dsim_hs_zero_ctrl(dsim, temp0);
>> + temp1 = 0;
>> + s5p_dsim_prep_ctrl(dsim, temp1);
>> + }
>> +
>> + /* Freq Band */
>> + s5p_dsim_pll_freq_band(dsim, freq_band);
>> +
>> + /* Stable time */
>> + s5p_dsim_pll_stable_time(dsim,
>> + dsim->dsim_info->pll_stable_time);
>> +
>> + /* Enable PLL */
>> + dev_dbg(dsim->dev, "FOUT of mipi dphy pll is %luMHz\n",
>> + (dpll_out / 1000000));
>> +
>> + return dpll_out;
>> +}
>> +
>> +int s5p_dsim_set_clock(struct dsim_global *dsim,
>> + unsigned char byte_clk_sel, unsigned char enable)
>> +{
>> + unsigned int esc_div;
>> + unsigned long esc_clk_error_rate;
>> +
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + return -EINVAL;
>> + }
>
> again, how about making this code WARN_ON?
>
>
>> + if (enable) {
>> + dsim->e_clk_src = byte_clk_sel;
>> +
>> + /* Escape mode clock and byte clock source */
>> + s5p_dsim_set_byte_clock_src(dsim, byte_clk_sel);
>> +
>> + /* DPHY, DSIM Link : D-PHY clock out */
>> + if (byte_clk_sel == DSIM_PLL_OUT_DIV8) {
>> + dsim->hs_clk = s5p_dsim_change_pll(dsim,
>> + dsim->dsim_info->p, dsim->dsim_info->m,
>> + dsim->dsim_info->s);
>> + if (dsim->hs_clk == 0) {
>> + dev_err(dsim->dev,
>> + "failed to get hs clock.\n");
>> + return -EINVAL;
>> + }
>> +
>> + dsim->byte_clk = dsim->hs_clk / 8;
>> + s5p_dsim_enable_pll_bypass(dsim, 0);
>> + s5p_dsim_pll_on(dsim, 1);
>> + /* DPHY : D-PHY clock out, DSIM link : external clock out */
>> + } else if (byte_clk_sel == DSIM_EXT_CLK_DIV8)
>> + dev_warn(dsim->dev,
>> + "this project is not support \
>> + external clock source for MIPI DSIM\n");
>> + else if (byte_clk_sel == DSIM_EXT_CLK_BYPASS)
>> + dev_warn(dsim->dev,
>> + "this project is not support \
>> + external clock source for MIPI DSIM\n");
>> +
>> + /* escape clock divider */
>> + esc_div = dsim->byte_clk / (dsim->dsim_info->esc_clk);
>> + dev_dbg(dsim->dev,
>> + "esc_div = %d, byte_clk = %lu, esc_clk = %lu\n",
>> + esc_div, dsim->byte_clk, dsim->dsim_info->esc_clk);
>> + if ((dsim->byte_clk / esc_div) >= 20000000 ||
>> + (dsim->byte_clk / esc_div) > dsim->dsim_info->esc_clk)
>> + esc_div += 1;
>> +
>> + dsim->escape_clk = dsim->byte_clk / esc_div;
>> + dev_dbg(dsim->dev,
>> + "escape_clk = %lu, byte_clk = %lu, esc_div = %d\n",
>> + dsim->escape_clk, dsim->byte_clk, esc_div);
>> +
>> + /*
>> + * enable escclk on lane
>> + *
>> + * in case of evt0, DSIM_TRUE is enable and
>> + * DSIM_FALSE is enable for evt1.
>> + */
>> + if (dsim->pd->platform_rev == 1)
>> + s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
>> + else
>> + s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
>> +
>> + /* enable byte clk and escape clock */
>> + s5p_dsim_set_esc_clk_prs(dsim, 1, esc_div);
>> + /* escape clock on lane */
>> + s5p_dsim_enable_esc_clk_on_lane(dsim,
>> + (DSIM_LANE_CLOCK | dsim->data_lane), 1);
>> +
>> + dev_dbg(dsim->dev, "byte clock is %luMHz\n",
>> + (dsim->byte_clk / 1000000));
>> + dev_dbg(dsim->dev, "escape clock that user's need is %lu\n",
>> + (dsim->dsim_info->esc_clk / 1000000));
>> + dev_dbg(dsim->dev, "escape clock divider is %x\n", esc_div);
>> + dev_dbg(dsim->dev, "escape clock is %luMHz\n",
>> + ((dsim->byte_clk / esc_div) / 1000000));
>> +
>> + if ((dsim->byte_clk / esc_div) > dsim->escape_clk) {
>> + esc_clk_error_rate = dsim->escape_clk /
>> + (dsim->byte_clk / esc_div);
>> + dev_warn(dsim->dev, "error rate is %lu over.\n",
>> + (esc_clk_error_rate / 100));
>> + } else if ((dsim->byte_clk / esc_div) < (dsim->escape_clk)) {
>> + esc_clk_error_rate = (dsim->byte_clk / esc_div) /
>> + dsim->escape_clk;
>> + dev_warn(dsim->dev, "error rate is %lu under.\n",
>> + (esc_clk_error_rate / 100));
>> + }
>> + } else {
>> + s5p_dsim_enable_esc_clk_on_lane(dsim,
>> + (DSIM_LANE_CLOCK | dsim->data_lane), 0);
>> + s5p_dsim_set_esc_clk_prs(dsim, 0, 0);
>> +
>> + /*
>> + * in case of evt0, DSIM_FALSE is disable and
>> + * DSIM_TRUE is disable for evt1.
>> + */
>> + if (dsim->pd->platform_rev == 1)
>> + s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
>> + else
>> + s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
>> +
>> + if (byte_clk_sel == DSIM_PLL_OUT_DIV8)
>> + s5p_dsim_pll_on(dsim, 0);
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +int s5p_dsim_init_dsim(struct dsim_global *dsim)
>> +{
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + return -EFAULT;
>> + }
>> +
>> + if (dsim->pd->init_d_phy)
>> + dsim->pd->init_d_phy(dsim);
>> +
>> + dsim->state = DSIM_STATE_RESET;
>> +
>> + switch (dsim->dsim_info->e_no_data_lane) {
>> + case DSIM_DATA_LANE_1:
>> + dsim->data_lane = DSIM_LANE_DATA0;
>> + break;
>> + case DSIM_DATA_LANE_2:
>> + dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1;
>> + break;
>> + case DSIM_DATA_LANE_3:
>> + dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
>> + DSIM_LANE_DATA2;
>> + break;
>> + case DSIM_DATA_LANE_4:
>> + dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
>> + DSIM_LANE_DATA2 | DSIM_LANE_DATA3;
>> + break;
>> + default:
>> + dev_info(dsim->dev, "data lane is invalid.\n");
>> + return -EINVAL;
>> + };
>> +
>> + s5p_dsim_init_header_fifo(dsim);
>> + s5p_dsim_sw_reset(dsim);
>> + s5p_dsim_dp_dn_swap(dsim, dsim->dsim_info->e_lane_swap);
>> +
>> + return 0;
>> +}
>> +
>> +int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim, int enable)
>> +{
>> + /* enable only frame done interrupt */
>> + s5p_dsim_set_interrupt_mask(dsim, INTMSK_FRAME_DONE, enable);
>> +
>> + return 0;
>> +}
>> +
>> +int s5p_dsim_set_display_mode(struct dsim_global *dsim,
>> + struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
>> +{
>> + struct fb_videomode *mlcd_video = NULL;
>> + struct fb_cmdmode *mlcd_command = NULL;
>> + struct s3c_fb_pd_win *pd;
>> + unsigned int width = 0, height = 0;
>> +
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + return -EFAULT;
>> + }
>> +
>> + pd = (struct s3c_fb_pd_win *)main_lcd->lcd_panel_info;
>> +
>> + /* in case of VIDEO MODE (RGB INTERFACE) */
>> + if (dsim->dsim_lcd_info->e_interface == (u32) DSIM_VIDEO) {
>> + mlcd_video = (struct fb_videomode *)&pd->win_mode;
>> + width = mlcd_video->xres;
>> + height = mlcd_video->yres;
>> +
>> + if (dsim->dsim_info->auto_vertical_cnt == DSIM_FALSE) {
>> + s5p_dsim_set_main_disp_vporch(dsim,
>> + mlcd_video->upper_margin,
>> + mlcd_video->lower_margin, 0);
>> + s5p_dsim_set_main_disp_hporch(dsim,
>> + mlcd_video->left_margin,
>> + mlcd_video->right_margin);
>> + s5p_dsim_set_main_disp_sync_area(dsim,
>> + mlcd_video->vsync_len,
>> + mlcd_video->hsync_len);
>> + }
>> + } else { /* in case of COMMAND MODE (CPU or I80 INTERFACE) */
>> + mlcd_command = (struct fb_cmdmode *)&pd->cmd_mode;
>> + width = mlcd_command->xres;
>> + height = mlcd_command->yres;
>> + }
>> +
>> + s5p_dsim_set_main_disp_resol(dsim, height, width);
>> +
>> + if (sub_lcd != NULL)
>> + dev_warn(dsim->dev, "sub lcd isn't supported yet.\n");
>> +
>> + s5p_dsim_display_config(dsim, dsim->dsim_lcd_info, NULL);
>> +
>> + return 0;
>> +}
>> +
>> +int s5p_dsim_init_link(struct dsim_global *dsim)
>> +{
>> + unsigned int time_out = 100;
>> +
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + return -EFAULT;
>> + }
>> +
>> + switch (dsim->state) {
>> + case DSIM_STATE_RESET:
>> + s5p_dsim_sw_reset(dsim);
>> + case DSIM_STATE_INIT:
>> + s5p_dsim_init_fifo_pointer(dsim, 0x1f);
>> +
>> + /* dsi configuration */
>> + s5p_dsim_init_config(dsim, dsim->dsim_lcd_info,
>> + NULL, dsim->dsim_info);
>> + s5p_dsim_enable_lane(dsim, DSIM_LANE_CLOCK, 1);
>> + s5p_dsim_enable_lane(dsim, dsim->data_lane, 1);
>> +
>> + /* set clock configuration */
>> + s5p_dsim_set_clock(dsim, dsim->dsim_info->e_byte_clk,
>> + 1);
>> +
>> + /* check clock and data lane state is stop state */
>> + while (!(s5p_dsim_is_lane_state(dsim, DSIM_LANE_CLOCK)
>> + == DSIM_LANE_STATE_STOP) &&
>> + !(s5p_dsim_is_lane_state(dsim,
>> + dsim->data_lane) == DSIM_LANE_STATE_STOP)) {
>> + time_out--;
>> + if (time_out == 0) {
>> + dev_info(dsim->dev,
>> + "DSI Master is not stop state.\n");
>> + dev_info(dsim->dev,
>> + "Check initialization process\n");
>> +
>> + return -EINVAL;
>> + }
>> + }
>> +
>> + if (time_out != 0) {
>> + dev_info(dsim->dev,
>> + "initialization of DSI Master is successful\n");
>> + dev_info(dsim->dev, "DSI Master state is stop state\n");
>> + }
>> +
>> + dsim->state = DSIM_STATE_STOP;
>> +
>> + /* BTA sequence counters */
>> + s5p_dsim_set_stop_state_counter(dsim,
>> + dsim->dsim_info->stop_holding_cnt);
>> + s5p_dsim_set_bta_timeout(dsim,
>> + dsim->dsim_info->bta_timeout);
>> + s5p_dsim_set_lpdr_timeout(dsim,
>> + dsim->dsim_info->rx_timeout);
>> +
>> + /* default LPDT by both cpu and lcd controller */
>> + s5p_dsim_set_data_mode(dsim, DSIM_TRANSFER_BOTH,
>> + DSIM_STATE_STOP);
>> +
>> + return 0;
>> + default:
>> + dev_info(dsim->dev, "DSI Master is already init.\n");
>> + return 0;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +int s5p_dsim_set_hs_enable(struct dsim_global *dsim)
>> +{
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + return -EFAULT;
>> + }
>> +
>> + if (dsim->state == DSIM_STATE_STOP) {
>> + if (dsim->e_clk_src != DSIM_EXT_CLK_BYPASS) {
>> + dsim->state = DSIM_STATE_HSCLKEN;
>> + s5p_dsim_set_data_mode(dsim,
>> + DSIM_TRANSFER_BOTH, DSIM_STATE_HSCLKEN);
>> + s5p_dsim_enable_hs_clock(dsim, 1);
>> +
>> + return 0;
>> + } else
>> + dev_warn(dsim->dev,
>> + "clock source is external bypass.\n");
>> + } else
>> + dev_warn(dsim->dev, "DSIM is not stop state.\n");
>> +
>> + return 0;
>> +}
>> +
>> +int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
>> + unsigned char data_path, unsigned char hs_enable)
>> +{
>> + int ret = -1;
>> +
>> + if (dsim == NULL) {
>> + printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + return -EFAULT;
>> + }
>> +
>> + if (hs_enable) {
>> + if (dsim->state == DSIM_STATE_HSCLKEN) {
>> + s5p_dsim_set_data_mode(dsim, data_path,
>> + DSIM_STATE_HSCLKEN);
>> + ret = 0;
>> + } else {
>> + dev_err(dsim->dev, "HS Clock lane is not enabled.\n");
>> + ret = -EINVAL;
>> + }
>> + } else {
>> + if (dsim->state == DSIM_STATE_INIT || dsim->state ==
>> + DSIM_STATE_ULPS) {
>> + dev_err(dsim->dev,
>> + "DSI Master is not STOP or HSDT state.\n");
>> + ret = -EINVAL;
>> + } else {
>> + s5p_dsim_set_data_mode(dsim, data_path,
>> + DSIM_STATE_STOP);
>> + ret = 0;
>> + }
>> + }
>> +
>> + return ret;
>> +}
>> +
>> +int s5p_dsim_get_frame_done_status(void *dsim_data)
>> +{
>> + struct dsim_global *dsim = NULL;
>> +
>> + dsim = (struct dsim_global *)dsim_data;
>> +
>> + if (dsim == NULL) {
>> + dev_err(dsim->dev, "dsim_global pointer is NULL.\n");
>> + return -EFAULT;
>> + }
>> +
>> + return _s5p_dsim_get_frame_done_status(dsim);
>> +}
>> +
>> +int s5p_dsim_clear_frame_done(void *dsim_data)
>> +{
>> + struct dsim_global *dsim = NULL;
>> +
>> + dsim = (struct dsim_global *)dsim_data;
>> +
>> + if (dsim == NULL) {
>> + dev_err(dsim->dev, "dsim_global pointer is NULL.\n");
>> + return -EFAULT;
>> + }
>> +
>> + _s5p_dsim_clear_frame_done(dsim);
>> +
>> + return 0;
>> +}
>> +
>> +MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
>> +MODULE_DESCRIPTION("Samusung MIPI-DSIM common driver");
>> +MODULE_LICENSE("GPL");
>> diff --git a/drivers/video/s5p_dsim_common.h b/drivers/video/s5p_dsim_common.h
>> new file mode 100644
>> index 0000000..deefca1
>> --- /dev/null
>> +++ b/drivers/video/s5p_dsim_common.h
>> @@ -0,0 +1,38 @@
>> +/* linux/drivers/video/samsung/s5p_dsim_common.h
>> + *
>> + * Header file for Samsung MIPI-DSI common driver.
>> + *
>> + * Copyright (c) 2009 Samsung Electronics
>> + * InKi Dae <inki.dae@samsung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> +*/
>> +
>> +#ifndef _S5P_DSIM_COMMON_H
>> +#define _S5P_DSIM_COMMON_H
>> +
>> +extern int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
>> + unsigned int data0, unsigned int data1);
>> +extern int s5p_dsim_init_header_fifo(struct dsim_global *dsim);
>> +extern int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned char enable);
>> +extern unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
>> + unsigned char pre_divider, unsigned short main_divider,
>> + unsigned char scaler);
>> +extern int s5p_dsim_set_clock(struct dsim_global *dsim,
>> + unsigned char byte_clk_sel, unsigned char enable);
>> +extern int s5p_dsim_init_dsim(struct dsim_global *dsim);
>> +extern int s5p_dsim_set_display_mode(struct dsim_global *dsim,
>> + struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd);
>> +extern int s5p_dsim_init_link(struct dsim_global *dsim);
>> +extern int s5p_dsim_set_hs_enable(struct dsim_global *dsim);
>> +extern int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
>> + unsigned char data_path, unsigned char hs_enable);
>> +extern int s5p_dsim_get_frame_done_status(void *dsim_data);
>> +extern int s5p_dsim_clear_frame_done(void *dsim_data);
>> +extern int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim, int enable);
>> +
>> +extern struct fb_info *registered_fb[FB_MAX] __read_mostly;
>> +
>> +#endif /* _S5P_DSIM_COMMON_H */
>> diff --git a/drivers/video/s5p_dsim_lowlevel.c b/drivers/video/s5p_dsim_lowlevel.c
>> new file mode 100644
>> index 0000000..6a27395
>> --- /dev/null
>> +++ b/drivers/video/s5p_dsim_lowlevel.c
>> @@ -0,0 +1,562 @@
>> +/* linux/drivers/video/samsung/s5p-dsim.c
>> + *
>> + * Samsung MIPI-DSIM lowlevel driver.
>> + *
>> + * InKi Dae, <inki.dae@samsung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> +*/
>> +
>> +#include <linux/module.h>
>> +#include <linux/kernel.h>
>> +#include <linux/errno.h>
>> +#include <linux/mutex.h>
>> +#include <linux/wait.h>
>> +#include <linux/delay.h>
>> +#include <linux/fs.h>
>> +#include <linux/mm.h>
>> +#include <linux/ctype.h>
>> +#include <linux/io.h>
>> +
>> +#include <mach/map.h>
>> +
>> +#include <plat/dsim.h>
>> +#include <plat/mipi_ddi.h>
>> +#include <plat/regs-dsim.h>
>> +
>> +void s5p_dsim_func_reset(struct dsim_global *dsim)
>> +{
>> + unsigned int cfg = 0;
>> +
>> + cfg = DSIM_FUNCRST;
>> +
>> + writel(cfg, dsim->reg_base + S5P_DSIM_SWRST);
>> +}
>
> so much easier to do
> writel(DSIM_FUNCRST, dsim->reg_base + S5P_DSIM_SWRST);
>
> much less space needed.
>
it wouldn't be cleanned. :)
>
>> +void s5p_dsim_sw_reset(struct dsim_global *dsim)
>> +{
>> + unsigned int cfg = 0;
>> +
>> + cfg = DSIM_SWRST;
>> +
>> + writel(cfg, dsim->reg_base + S5P_DSIM_SWRST);
>> +}
>> +
>> +void s5p_dsim_set_interrupt_mask(struct dsim_global *dsim, unsigned int mode,
>> + unsigned int mask)
>> +{
>
> bool for mask.
>
ok, it would be modified.
>> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTMSK);
>> +
>> + if (mask)
>> + reg |= mode;
>> + else
>> + reg &= ~(mode);
>
> no need for () around mode.
>
>> + writel(reg, dsim->reg_base + S5P_DSIM_INTMSK);
>> +}
>> +
>> +void s5p_dsim_init_fifo_pointer(struct dsim_global *dsim, unsigned char cfg)
>> +{
>> + unsigned int reg;
>> +
>> + reg = readl(dsim->reg_base + S5P_DSIM_FIFOCTRL);
>> +
>> + writel(reg & ~(cfg), dsim->reg_base + S5P_DSIM_FIFOCTRL);
>> + mdelay(10);
>> + reg |= cfg;
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_FIFOCTRL);
>> +}
>> +
>> +/*
>> + * this function set PLL P, M and S value in D-PHY
>> + */
>> +void s5p_dsim_set_phy_tunning(struct dsim_global *dsim, unsigned int value)
>> +{
>> + writel(DSIM_AFC_CTL(value), dsim->reg_base + S5P_DSIM_PHYACCHR);
>> +}
>> +
>> +void s5p_dsim_set_main_disp_resol(struct dsim_global *dsim,
>> + unsigned short vert_resol, unsigned short hori_resol)
>> +{
>> + unsigned int reg;
>> +
>> + /* standby should be set after configuration so set to not ready*/
>> + reg = (readl(dsim->reg_base + S5P_DSIM_MDRESOL)) &
>> + ~(DSIM_MAIN_STAND_BY);
>> + writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
>> +
>> + reg &= ~(0x7ff << 16) & ~(0x7ff << 0);
>> + reg |= DSIM_MAIN_VRESOL(vert_resol) | DSIM_MAIN_HRESOL(hori_resol);
>> +
>> + reg |= DSIM_MAIN_STAND_BY;
>> + writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
>> +}
>> +
>> +void s5p_dsim_set_main_disp_vporch(struct dsim_global *dsim,
>> + unsigned int cmd_allow, unsigned int vfront, unsigned int vback)
>> +{
>> + unsigned int reg;
>> +
>> + reg = (readl(dsim->reg_base + S5P_DSIM_MVPORCH)) &
>> + ~(DSIM_CMD_ALLOW_MASK) & ~(DSIM_STABLE_VFP_MASK) &
>> + ~(DSIM_MAIN_VBP_MASK);
>> +
>> + reg |= ((cmd_allow & 0xf) << DSIM_CMD_ALLOW_SHIFT) |
>> + ((vfront & 0x7ff) << DSIM_STABLE_VFP_SHIFT) |
>> + ((vback & 0x7ff) << DSIM_MAIN_VBP_SHIFT);
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_MVPORCH);
>> +}
>> +
>> +void s5p_dsim_set_main_disp_hporch(struct dsim_global *dsim,
>> + unsigned short front, unsigned short back)
>> +{
>> + unsigned int reg;
>> +
>> + reg = (readl(dsim->reg_base + S5P_DSIM_MHPORCH)) &
>> + ~(DSIM_MAIN_HFP_MASK) & ~(DSIM_MAIN_HBP_MASK);
>> +
>> + reg |= (front << DSIM_MAIN_HFP_SHIFT) | (back << DSIM_MAIN_HBP_SHIFT);
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_MHPORCH);
>> +}
>> +
>> +void s5p_dsim_set_main_disp_sync_area(struct dsim_global *dsim,
>> + unsigned short vert, unsigned short hori)
>> +{
>> + unsigned int reg;
>> +
>> + reg = (readl(dsim->reg_base + S5P_DSIM_MSYNC)) &
>> + ~(DSIM_MAIN_VSA_MASK) & ~(DSIM_MAIN_HSA_MASK);
>> +
>> + reg |= ((vert & 0x3ff) << DSIM_MAIN_VSA_SHIFT) |
>> + (hori << DSIM_MAIN_HSA_SHIFT);
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_MSYNC);
>> +}
>> +
>> +void s5p_dsim_set_sub_disp_resol(struct dsim_global *dsim,
>> + unsigned short vert, unsigned short hori)
>> +{
>> + unsigned int reg;
>> +
>> + reg = (readl(dsim->reg_base + S5P_DSIM_SDRESOL)) &
>> + ~(DSIM_SUB_STANDY_MASK);
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
>> +
>> + reg &= ~(DSIM_SUB_VRESOL_MASK) | ~(DSIM_SUB_HRESOL_MASK);
>> + reg |= ((vert & 0x7ff) << DSIM_SUB_VRESOL_SHIFT) |
>> + ((hori & 0x7ff) << DSIM_SUB_HRESOL_SHIFT);
>> + writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
>> +
>> + reg |= (1 << DSIM_SUB_STANDY_SHIFT);
>> + writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
>> +}
>> +
>> +void s5p_dsim_init_config(struct dsim_global *dsim,
>> + struct dsim_lcd_config *main_lcd_info,
>> + struct dsim_lcd_config *sub_lcd_info, struct dsim_config *dsim_info)
>> +{
>> + unsigned int cfg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
>> + ~(1 << 28) & ~(0x1f << 20) & ~(0x3 << 5);
>> +
>> + cfg = (dsim_info->auto_flush << 29) |
>> + (dsim_info->eot_disable << 28) |
>> + (dsim_info->auto_vertical_cnt << DSIM_AUTO_MODE_SHIFT) |
>> + (dsim_info->hse << DSIM_HSE_MODE_SHIFT) |
>> + (dsim_info->hfp << DSIM_HFP_MODE_SHIFT) |
>> + (dsim_info->hbp << DSIM_HBP_MODE_SHIFT) |
>> + (dsim_info->hsa << DSIM_HSA_MODE_SHIFT) |
>> + (dsim_info->e_no_data_lane << DSIM_NUM_OF_DATALANE_SHIFT);
>> +
>> + writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
>> +}
>> +
>> +void s5p_dsim_display_config(struct dsim_global *dsim,
>> + struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
>> +{
>> + u32 reg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
>> + ~(0x3 << 26) & ~(1 << 25) & ~(0x3 << 18) & ~(0x7 << 12) &
>> + ~(0x3 << 16) & ~(0x7 << 8);
>> +
>> + if (main_lcd->e_interface == DSIM_VIDEO)
>> + reg |= (1 << 25);
>> + else if (main_lcd->e_interface == DSIM_COMMAND)
>> + reg &= ~(1 << 25);
>> + else {
>> + dev_err(dsim->dev, "this ddi is not MIPI interface.\n");
>> + return;
>> + }
>> +
>> + /* main lcd */
>> + reg |= ((u8) (main_lcd->parameter[DSI_VIDEO_MODE_SEL]) & 0x3) << 26 |
>> + ((u8) (main_lcd->parameter[DSI_VIRTUAL_CH_ID]) & 0x3) << 18 |
>> + ((u8) (main_lcd->parameter[DSI_FORMAT]) & 0x7) << 12;
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
>> +}
>> +
>> +void s5p_dsim_enable_lane(struct dsim_global *dsim, unsigned char lane,
>> + unsigned char enable)
>> +{
>> + unsigned int reg;
>> +
>> + reg = readl(dsim->reg_base + S5P_DSIM_CONFIG);
>> +
>> + if (lane == DSIM_LANE_CLOCK) {
>> + if (enable)
>> + reg |= (1 << 0);
>> + else
>> + reg &= ~(1 << 0);
>> + } else {
>> + if (enable)
>> + reg |= (lane << 1);
>> + else
>> + reg &= ~(lane << 1);
>> + }
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
>> +}
>> +
>> +
>> +void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
>> + unsigned char count)
>> +{
>> + unsigned int cfg = 0;
>> +
>> + /* get the data lane number. */
>> + cfg = DSIM_NUM_OF_DATA_LANE(count);
>> +
>> + writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
>> +}
>> +
>> +void s5p_dsim_enable_afc(struct dsim_global *dsim, unsigned char enable,
>> + unsigned char afc_code)
>> +{
>> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PHYACCHR);
>> +
>> + if (enable) {
>> + reg |= (1 << 14);
>> + reg &= ~(0x7 << 5);
>> + reg |= (afc_code & 0x7) << 5;
>> + } else
>> + reg &= ~(1 << 14);
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_PHYACCHR);
>> +}
>> +
>> +void s5p_dsim_enable_pll_bypass(struct dsim_global *dsim,
>> + unsigned char enable)
>
> unsigned int enable.
>
also.
>> +{
>> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
>> + ~(DSIM_PLL_BYPASS_EXTERNAL);
>> +
>> + reg |= enable << DSIM_PLL_BYPASS_SHIFT;
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
>> +}
>> +
>> +void s5p_dsim_set_pll_pms(struct dsim_global *dsim, unsigned char p,
>> + unsigned short m, unsigned short s)
>> +{
>> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PLLCTRL);
>> +
>> + reg |= ((p & 0x3f) << 13) | ((m & 0x1ff) << 4) | ((s & 0x7) << 1);
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
>> +}
>> +
>> +void s5p_dsim_pll_freq_band(struct dsim_global *dsim, unsigned char freq_band)
>> +{
>> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
>> + ~(0x1f << DSIM_FREQ_BAND_SHIFT);
>> +
>> + reg |= ((freq_band & 0x1f) << DSIM_FREQ_BAND_SHIFT);
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
>> +}
>> +
>> +void s5p_dsim_pll_freq(struct dsim_global *dsim, unsigned char pre_divider,
>> + unsigned short main_divider, unsigned char scaler)
>> +{
>> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
>> + ~(0x7ffff << 1);
>> +
>> + reg |= (pre_divider & 0x3f) << 13 | (main_divider & 0x1ff) << 4 |
>> + (scaler & 0x7) << 1;
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
>> +}
>> +
>> +void s5p_dsim_pll_stable_time(struct dsim_global *dsim,
>> + unsigned int lock_time)
>> +{
>> + writel(lock_time, dsim->reg_base + S5P_DSIM_PLLTMR);
>> +}
>> +
>> +void s5p_dsim_enable_pll(struct dsim_global *dsim, unsigned char enable)
>> +{
>> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
>> + ~(0x1 << DSIM_PLL_EN_SHIFT);
>> +
>> + reg |= ((enable & 0x1) << DSIM_PLL_EN_SHIFT);
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
>> +}
>> +
>> +void s5p_dsim_set_byte_clock_src(struct dsim_global *dsim, unsigned char src)
>> +{
>> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
>> + ~(0x3 << DSIM_BYTE_CLK_SRC_SHIFT);
>> +
>> + reg |= ((unsigned int) src) << DSIM_BYTE_CLK_SRC_SHIFT;
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
>> +}
>> +
>> +void s5p_dsim_enable_byte_clock(struct dsim_global *dsim,
>> + unsigned char enable)
>> +{
>> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
>> + ~(1 << DSIM_BYTE_CLKEN_SHIFT);
>> +
>> + reg |= enable << DSIM_BYTE_CLKEN_SHIFT;
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
>> +}
>> +
>> +void s5p_dsim_set_esc_clk_prs(struct dsim_global *dsim, unsigned char enable,
>> + unsigned short prs_val)
>> +{
>> + unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
>> + ~(1 << DSIM_ESC_CLKEN_SHIFT) & ~(0xffff);
>> +
>> + reg |= enable << DSIM_ESC_CLKEN_SHIFT;
>> + if (enable)
>> + reg |= prs_val;
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
>> +}
>> +
>> +void s5p_dsim_enable_esc_clk_on_lane(struct dsim_global *dsim,
>> + unsigned char lane_sel, unsigned char enable)
>> +{
>> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_CLKCTRL);
>> +
>> + if (enable) {
>> + if (lane_sel & DSIM_LANE_CLOCK)
>> + reg |= 1 << DSIM_LANE_ESC_CLKEN_SHIFT;
>> + if (lane_sel & DSIM_LANE_DATA0)
>> + reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1);
>> + if (lane_sel & DSIM_LANE_DATA1)
>> + reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2);
>> + if (lane_sel & DSIM_LANE_DATA2)
>> + reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3);
>> + if (lane_sel & DSIM_LANE_DATA2)
>> + reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4);
>> + } else {
>> + if (lane_sel & DSIM_LANE_CLOCK)
>> + reg &= ~(1 << DSIM_LANE_ESC_CLKEN_SHIFT);
>> + if (lane_sel & DSIM_LANE_DATA0)
>> + reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1));
>> + if (lane_sel & DSIM_LANE_DATA1)
>> + reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2));
>> + if (lane_sel & DSIM_LANE_DATA2)
>> + reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3));
>> + if (lane_sel & DSIM_LANE_DATA2)
>> + reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4));
>> + }
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
>> +}
>> +
>
>> +
>
>> +void s5p_dsim_clear_interrupt(struct dsim_global *dsim, unsigned int int_src)
>> +{
>> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
>> +
>> + reg |= int_src;
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_INTSRC);
>> +}
>>
>
>
>> +unsigned char s5p_dsim_is_pll_stable(struct dsim_global *dsim)
>> +{
>> + return (unsigned char) ((readl(dsim->reg_base + S5P_DSIM_STATUS) &
>> + (1 << 31)) >> 31);
>> +}
>
> do you really need to be casting to an unsigned char?
>
> sure the code would be more efficient if you simply return an unsigned
> int.
>
> Either >> 31 the result (hint, it'll be the only bit left) or use
> the & (1 << 31) and return the result (non-zero generally regarded as true).
>
ok, code cleanup was less.
More will be cleaner.
>> +
>> +unsigned int s5p_dsim_get_fifo_state(struct dsim_global *dsim)
>> +{
>> + unsigned int ret = 0;
>> +
>> + ret = (readl(dsim->reg_base + S5P_DSIM_FIFOCTRL) & ~(0x1f));
>> +
>> + return ret;
>> +}
>
> again, no need for intermediate variable and certianly no need to init
> it before assinging it.
>
also.
>> +
>> +void s5p_dsim_wr_tx_header(struct dsim_global *dsim,
>> + unsigned char di, unsigned char data0, unsigned char data1)
>> +{
>> + unsigned int reg = (data1 << 16) | (data0 << 8) | ((di & 0x3f) << 0);
>> +
>> + writel(reg, dsim->reg_base + S5P_DSIM_PKTHDR);
>> +}
>> +
>> +unsigned int _s5p_dsim_get_frame_done_status(struct dsim_global *dsim)
>> +{
>> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
>> +
>> + return (reg & INTSRC_FRAME_DONE) ? 1 : 0;
>> +}
>> +
>> +void _s5p_dsim_clear_frame_done(struct dsim_global *dsim)
>> +{
>> + unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
>> +
>> + writel(reg | INTSRC_FRAME_DONE, dsim->reg_base +
>> + S5P_DSIM_INTSRC);
>> +}
>> +
>> +void s5p_dsim_wr_tx_data(struct dsim_global *dsim, unsigned int tx_data)
>> +{
>> + writel(tx_data, dsim->reg_base + S5P_DSIM_PAYLOAD);
>> +}
>> diff --git a/drivers/video/s5p_dsim_lowlevel.h b/drivers/video/s5p_dsim_lowlevel.h
>> new file mode 100644
>> index 0000000..ff950ba
>> --- /dev/null
>> +++ b/drivers/video/s5p_dsim_lowlevel.h
>> @@ -0,0 +1,101 @@
>> +/* linux/drivers/video/samsung/s5p_dsim_lowlevel.h
>> + *
>> + * Header file for Samsung MIPI-DSIM lowlevel driver.
>> + *
>> + * Copyright (c) 2009 Samsung Electronics
>> + * InKi Dae <inki.dae@samsung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> +*/
>> +
>> +#ifndef _S5P_DSIM_LOWLEVEL_H
>> +#define _S5P_DSIM_LOWLEVEL_H
>> +
>> +struct dsim_global;
>> +
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH 2/2] S5PV210: Add MIPI-DSI Driver.
@ 2010-07-02 18:08 ` InKi Dae
0 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-02 18:08 UTC (permalink / raw)
To: linux-arm-kernel
Most of you pointed out would be modified.
Code cleanup and code review was the lack of
Thank you, Ben.
2010/7/2 Ben Dooks <ben@simtec.co.uk>:
> On 02/07/10 09:51, InKi Dae wrote:
>> this patch addes MIPI-DSI Driver.
>>
>> to use this driver, some structures below should be added to machine
>> specific file.
>>
>> struct dsim_config
>> - define clock info, data lane count and video mode info for MIPI-DSI
>> Controller.
>>
>> struct dsim_lcd_config
>> - define interface mode, channel ID, Pixel format and so on.
>>
>> struct s5p_platform_dsim
>> - define callbacks for initializing D-PHY, MIPI reset and trigger
>> releated interfaces of s3c-fb.c file.
>>
>> Signed-off-by: InKi Dae <inki.dae at samsung.com <mailto:p.osciak@samsung.com>>
>> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com
>> <mailto:kyungmin.park@samsung.com>>
>> ---
>>
>> diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
>> index 2a25ab4..f716678 100644
>> --- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
>> +++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
>> @@ -162,6 +162,7 @@
>>
>> ?/* MIPI */
>> ?#define S5P_MIPI_DPHY_EN ? ? ? ? ? ? (3)
>> +#define S5P_MIPI_M_RESETN ? ? ? ? ? ?(1 << 1)
>>
>> ?/* S5P_DAC_CONTROL */
>> ?#define S5P_DAC_ENABLE ? ? ? ? ? ? ? ? ? ? ? (1)
>> diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
>> index b1d82cc..3cd43f2 100644
>> --- a/arch/arm/plat-samsung/Makefile
>> +++ b/arch/arm/plat-samsung/Makefile
>> @@ -49,6 +49,9 @@ obj-$(CONFIG_S3C_DEV_RTC) ? += dev-rtc.o
>> ?obj-$(CONFIG_SAMSUNG_DEV_ADC) ? ? ? ?+= dev-adc.o
>> ?obj-$(CONFIG_SAMSUNG_DEV_TS) += dev-ts.o
>>
>> +# Device setup - MIPI-DSI
>> +obj-$(CONFIG_S5P_MIPI_DSI) ?+= setup-dsim.o
>> +
>> ?# DMA support
>>
>> ?obj-$(CONFIG_S3C_DMA) ? ? ? ? ? ? ? ?+= dma.o
>> diff --git a/arch/arm/plat-samsung/include/plat/dsim.h b/arch/arm/plat-samsung/include/plat/dsim.h
>> new file mode 100644
>> index 0000000..28bc595
>> --- /dev/null
>> +++ b/arch/arm/plat-samsung/include/plat/dsim.h
>> @@ -0,0 +1,470 @@
>
>
>> + * driver structure for mipi-dsi based lcd panel.
>> + *
>> + * this structure should be registered by lcd panel driver.
>> + * mipi-dsi driver seeks lcd panel registered through name field
>> + * and calls these callback functions in appropriate time.
>> + */
>> +struct mipi_lcd_driver {
>> + ? ? s8 ? ? ?name[64];
>
> how about an 'char *' here instead of reserving 64bytes?
>
Ok, 'char *' is better.
>> + ? ? s32 ? ? (*init)(struct device *dev);
>> + ? ? void ? ?(*display_on)(struct device *dev);
>> + ? ? s32 ? ? (*set_link)(struct mipi_ddi_platform_data *pd);
>> + ? ? s32 ? ? (*probe)(struct device *dev);
>> + ? ? s32 ? ? (*remove)(struct device *dev);
>> + ? ? void ? ?(*shutdown)(struct device *dev);
>> + ? ? s32 ? ? (*suspend)(struct device *dev, pm_message_t mesg);
>> + ? ? s32 ? ? (*resume)(struct device *dev);
>> +};
>
> Some of this should be already covered under the existing
> lcd interface?
>
you mean, lcd class(lcd.c)?
these callbacks would be registered to master driver (s5p-dsim.c).
Could you explain in more detail?
>> diff --git a/arch/arm/plat-samsung/include/plat/mipi_ddi.h b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
>> new file mode 100644
>> index 0000000..57ed613
>> --- /dev/null
>> +++ b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
>> @@ -0,0 +1,98 @@
>> +/* linux/arm/arch/mach-s5pc110/include/mach/mipi_ddi.h
>> + *
>> + * definitions for DDI based MIPI-DSI.
>> + *
>> + * Copyright (c) 2009 Samsung Electronics
>> + * InKi Dae <inki.dae@samsung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> +*/
>> +
>> +#ifndef _MIPI_DDI_H
>> +#define _MIPI_DDI_H
>> +
>> +enum mipi_ddi_interface {
>> + ? ? RGB_IF = 0x4000,
>> + ? ? I80_IF = 0x8000,
>> + ? ? YUV_601 = 0x10000,
>> + ? ? YUV_656 = 0x20000,
>> + ? ? MIPI_VIDEO = 0x1000,
>> + ? ? MIPI_COMMAND = 0x2000,
>> +};
>> +
>> +enum mipi_ddi_panel_select {
>> + ? ? DDI_MAIN_LCD = 0,
>> + ? ? DDI_SUB_LCD = 1,
>> +};
>> +
>> +enum mipi_ddi_model {
>> + ? ? S6DR117 = 0,
>> +};
>> +
>> +enum mipi_ddi_parameter {
>> + ? ? /* DSIM video interface parameter */
>> + ? ? DSI_VIRTUAL_CH_ID = 0,
>> + ? ? DSI_FORMAT = 1,
>> + ? ? DSI_VIDEO_MODE_SEL = 2,
>> +};
>> +
>> +struct lcd_device;
>> +struct fb_info;
>> +
>> +struct mipi_ddi_platform_data {
>> + ? ? void *dsim_data;
>> + ? ? /*
>> + ? ? ?* it is used for command mode lcd panel and
>> + ? ? ?* when all contents of framebuffer in panel module are transfered
>> + ? ? ?* to lcd panel it occurs te signal.
>> + ? ? ?*
>> + ? ? ?* note:
>> + ? ? ?* - in case of command mode(cpu mode), it should be triggered only
>> + ? ? ?* ? when TE signal of lcd panel and frame done interrupt of display
>> + ? ? ?* ? controller or mipi controller occurs.
>> + ? ? ?*/
>> + ? ? unsigned int te_irq;
>> +
>> + ? ? /*
>> + ? ? ?* it is used for PM stable time at te interrupt handler and
>> + ? ? ?* could be used according to lcd panel characteristic or not.
>> + ? ? ?*/
>> + ? ? unsigned int resume_complete;
>> +
>> + ? ? int (*lcd_reset) (struct lcd_device *ld);
>> + ? ? int (*lcd_power_on) (struct lcd_device *ld, int enable);
>> + ? ? int (*backlight_on) (int enable);
>> +
>> + ? ? /* transfer command to lcd panel at LP mode. */
>> + ? ? int (*cmd_write) (void *dsim_data, unsigned int data_id,
>> + ? ? ? ? ? ? unsigned int data0, unsigned int data1);
>> + ? ? int (*cmd_read) (void *dsim_data, unsigned int data_id,
>> + ? ? ? ? ? ? unsigned int data0, unsigned int data1);
>> + ? ? /*
>> + ? ? ?* get the status that all screen data have been transferred
>> + ? ? ?* to mipi-dsi.
>> + ? ? ?*/
>> + ? ? int (*get_dsim_frame_done) (void *dsim_data);
>> + ? ? int (*clear_dsim_frame_done) (void *dsim_data);
>> +
>> + ? ? /*
>> + ? ? ?* changes mipi transfer mode to LP or HS mode.
>> + ? ? ?*
>> + ? ? ?* LP mode needs when some commands like gamma values transfers
>> + ? ? ?* to lcd panel.
>> + ? ? ?*/
>> + ? ? int (*change_dsim_transfer_mode) (int mode);
>> +
>> + ? ? /* get frame done status of display controller. */
>> + ? ? int (*get_fb_frame_done) (struct fb_info *info);
>> + ? ? /* trigger display controller in case of cpu mode. */
>> + ? ? void (*trigger) (struct fb_info *info);
>> +
>> + ? ? unsigned int reset_delay;
>> + ? ? unsigned int power_on_delay;
>> + ? ? unsigned int power_off_delay;
>> +};
>> +
>> +#endif /* _MIPI_DDI_H */
>> diff --git a/arch/arm/plat-samsung/include/plat/regs-dsim.h b/arch/arm/plat-samsung/include/plat/regs-dsim.h
>> new file mode 100644
>> index 0000000..dc83089
>> --- /dev/null
>> +++ b/arch/arm/plat-samsung/include/plat/regs-dsim.h
>> @@ -0,0 +1,281 @@
> ?+
>> +/* S5P_DSIM_TIMEOUT */
>> +#define DSIM_LPDR_TOUT_SHIFT (0)
>> +#define DSIM_BTA_TOUT_SHIFT ?(16)
>> +#define DSIM_LPDR_TOUT(x) ? ?(((x) & 0xffff) << DSIM_LPDR_TOUT_SHIFT)
>> +#define DSIM_BTA_TOUT(x) ? ? (((x) & 0xff) << DSIM_BTA_TOUT_SHIFT)
>> +
>> +/* S5P_DSIM_CLKCTRL */
>> +#define DSIM_ESC_PRESCALER_SHIFT ? ? (0)
>> +#define DSIM_LANE_ESC_CLKEN_SHIFT ? ?(19)
>> +#define DSIM_BYTE_CLKEN_SHIFT ? ? ? ? ? ? ? ?(24)
>> +#define DSIM_BYTE_CLK_SRC_SHIFT ? ? ? ? ? ? ?(25)
>> +#define DSIM_PLL_BYPASS_SHIFT ? ? ? ? ? ? ? ?(27)
>> +#define DSIM_ESC_CLKEN_SHIFT ? ? ? ? (28)
>> +#define DSIM_TX_REQUEST_HSCLK_SHIFT ?(31)
>> +#define DSIM_ESC_PRESCALER(x) ? ? ? ? ? ? ? ?(((x) & 0xffff) << \
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? DSIM_ESC_PRESCALER_SHIFT)
>> +#define DSIM_LANE_ESC_CLKEN(x) ? ? ? ? ? ? ? (((x) & 0x1f) << \
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? DSIM_LANE_ESC_CLKEN_SHIFT)
>> +#define DSIM_BYTE_CLK_ENABLE ? ? ? ? (1 << DSIM_BYTE_CLKEN_SHIFT)
>> +#define DSIM_BYTE_CLK_DISABLE ? ? ? ? ? ? ? ?(0 << DSIM_BYTE_CLKEN_SHIFT)
>> +#define DSIM_BYTE_CLKSRC(x) ? ? ? ? ?(((x) & 0x3) << DSIM_BYTE_CLK_SRC_SHIFT)
>> +#define DSIM_PLL_BYPASS_PLL ? ? ? ? ?(0 << DSIM_PLL_BYPASS_SHIFT)
>> +#define DSIM_PLL_BYPASS_EXTERNAL ? ? (1 << DSIM_PLL_BYPASS_SHIFT)
>> +#define DSIM_ESC_CLKEN_ENABLE ? ? ? ? ? ? ? ?(1 << DSIM_ESC_CLKEN_SHIFT)
>> +#define DSIM_ESC_CLKEN_DISABLE ? ? ? ? ? ? ? (0 << DSIM_ESC_CLKEN_SHIFT)
>
>
>> +
>> +#include <plat/dsim.h>
>> +#include <plat/clock.h>
>> +#include <plat/regs-dsim.h>
>> +
>> +static int s5p_dsim_enable_d_phy(struct dsim_global *dsim, unsigned int enable)
>
> I suppose enable should be bool,
>
>> +{
>> + ? ? unsigned int reg;
>> +
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>
> Is it likely to be NULL? If unlikely then a simple warning and return
> -EFAULT.
>
NULL in the code development process, the problem is to know it.
it would be cleanned.
>> +
>> + ? ? reg = (readl(S5P_MIPI_CONTROL)) & ~(1 << 0);
>
> extra () not really needed
>
>> + ? ? reg |= (enable << 0);
>> + ? ? writel(reg, S5P_MIPI_CONTROL);
>> +
>> + ? ? dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
>> +
>> + ? ? return 0;
>> +}
>> +
>> +static int s5p_dsim_enable_dsi_master(struct dsim_global *dsim,
>> + ? ? unsigned int enable)
>> +{
>> + ? ? unsigned int reg;
>> +
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> + ? ? reg = (readl(S5P_MIPI_CONTROL)) & ~(1 << 2);
>> + ? ? reg |= (enable << 2);
>> + ? ? writel(reg, S5P_MIPI_CONTROL);
>> +
>> + ? ? dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
>> +
>> + ? ? return 0;
>> +}
>> +
>> +int s5p_dsim_part_reset(struct dsim_global *dsim)
>> +{
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> + ? ? writel(S5P_MIPI_M_RESETN, S5P_MIPI_PHY_CON0);
>> +
>> + ? ? dev_dbg(dsim->dev, "%s\n", __func__);
>> +
>> + ? ? return 0;
>> +}
>> +
>> +int s5p_dsim_init_d_phy(struct dsim_global *dsim)
>> +{
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> + ? ? /* enable D-PHY */
>> + ? ? s5p_dsim_enable_d_phy(dsim, 1);
>> +
>> + ? ? /* enable DSI master block */
>> + ? ? s5p_dsim_enable_dsi_master(dsim, 1);
>
> you ould probably have omitted the comments on these.
>
I will add more comments.
>> +
>> + ? ? dev_dbg(dsim->dev, "%s\n", __func__);
>> +
>> + ? ? return 0;
>> +}
>> +
>> +int s5p_dsim_mipi_power(struct dsim_global *dsim, void *p_mipi_1_1v,
>> + ? ? void *p_mipi_1_8v, int enable)
>
> enable could be bool.
>
ok.
>> +{
>> + ? ? struct regulator *r_mipi_1_1v = NULL, *r_mipi_1_8v = NULL;
>
> No need to init to NULL when you just cast them a few lines done.
>
ok.
>> + ? ? int ret = -1;
>> +
>> + ? ? r_mipi_1_1v = (struct regulator *) p_mipi_1_1v;
>> + ? ? r_mipi_1_8v = (struct regulator *) p_mipi_1_8v;
>
> It would be better just to call these regulators and stick with one type
> for these.
>
Okay, I'll even clean up the code
>
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>
> this is getting repetitive, is it really necessary?
>
>
>> +
>> + ? ? if (IS_ERR(r_mipi_1_1v) || IS_ERR(r_mipi_1_8v)) {
>> + ? ? ? ? ? ? dev_err(dsim->dev, "r_mipi_1_1v or r_mipi_1_8v is NULL.\n");
>> + ? ? ? ? ? ? return -EINVAL;
>> + ? ? }
>> +
>> + ? ? if (enable) {
>> + ? ? ? ? ? ? if (r_mipi_1_1v)
>> + ? ? ? ? ? ? ? ? ? ? ret = regulator_enable(r_mipi_1_1v);
>> +
>> + ? ? ? ? ? ? if (ret < 0) {
>> + ? ? ? ? ? ? ? ? ? ? dev_err(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? "failed to enable regulator mipi_1_1v.\n");
>> + ? ? ? ? ? ? ? ? ? ? return ret;
>> + ? ? ? ? ? ? }
>> +
>> + ? ? ? ? ? ? if (r_mipi_1_8v)
>> + ? ? ? ? ? ? ? ? ? ? ret = regulator_enable(r_mipi_1_8v);
>> +
>> + ? ? ? ? ? ? if (ret < 0) {
>> + ? ? ? ? ? ? ? ? ? ? dev_err(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? "failed to enable regulator mipi_1_8v.\n");
>> + ? ? ? ? ? ? ? ? ? ? return ret;
>> + ? ? ? ? ? ? }
>> + ? ? } else {
>> + ? ? ? ? ? ? if (r_mipi_1_1v)
>> + ? ? ? ? ? ? ? ? ? ? ret = regulator_force_disable(r_mipi_1_1v);
>> + ? ? ? ? ? ? if (ret < 0) {
>> + ? ? ? ? ? ? ? ? ? ? dev_err(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? "failed to disable regulator mipi_1_1v.\n");
>> + ? ? ? ? ? ? ? ? ? ? return ret;
>> + ? ? ? ? ? ? }
>> +
>> + ? ? ? ? ? ? if (r_mipi_1_8v)
>> + ? ? ? ? ? ? ? ? ? ? ret = regulator_force_disable(r_mipi_1_8v);
>> + ? ? ? ? ? ? if (ret < 0) {
>> + ? ? ? ? ? ? ? ? ? ? dev_err(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? "failed to disable regulator mipi_1_8v.\n");
>> + ? ? ? ? ? ? ? ? ? ? return ret;
>> + ? ? ? ? ? ? }
>> + ? ? }
>> +
>> + ? ? return ret;
>> +}
>> diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
>> index 3d94a14..c916ac1 100644
>> --- a/drivers/video/Kconfig
>> +++ b/drivers/video/Kconfig
>> @@ -1930,7 +1930,7 @@ config FB_TMIO_ACCELL
>>
>> ?config FB_S3C
>> ? ? ? tristate "Samsung S3C framebuffer support"
>> - ? ? depends on FB && ARCH_S3C64XX
>> + ? ? depends on FB && (ARCH_S3C64XX || ARCH_S5PV210)
>> ? ? ? select FB_CFB_FILLRECT
>> ? ? ? select FB_CFB_COPYAREA
>> ? ? ? select FB_CFB_IMAGEBLIT
>> @@ -1975,6 +1975,13 @@ config FB_S3C2410_DEBUG
>> ? ? ? ? Turn on debugging messages. Note that you can set/unset at run time
>> ? ? ? ? through sysfs
>>
>> +config S5P_MIPI_DSI
>> + ? ? tristate "Samsung SoC MIPI-DSI support."
>> + ? ? depends on FB_S3C && ARCH_S5PV210
>> + ? ? default n
>> + ? ? ---help---
>> + ? ? ? This enables support for MIPI-DSI device.
>> +
>> ?config FB_NUC900
>> ? ? ? ? ?bool "NUC900 LCD framebuffer support"
>> ? ? ? ? ?depends on FB && ARCH_W90X900
>> diff --git a/drivers/video/Makefile b/drivers/video/Makefile
>> index ddc2af2..d841433 100644
>> --- a/drivers/video/Makefile
>> +++ b/drivers/video/Makefile
>> @@ -115,6 +115,8 @@ obj-$(CONFIG_FB_SH7760) ? ? ? ? ? ? += sh7760fb.o
>> ?obj-$(CONFIG_FB_IMX) ? ? ? ? ? ? ?+= imxfb.o
>> ?obj-$(CONFIG_FB_S3C) ? ? ? ? ? += s3c-fb.o
>> ?obj-$(CONFIG_FB_S3C2410) ? ? ? += s3c2410fb.o
>> +obj-$(CONFIG_S5P_MIPI_DSI) ? ? += s5p-dsim.o s5p_dsim_common.o \
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? s5p_dsim_lowlevel.o
>> ?obj-$(CONFIG_FB_FSL_DIU) ? ? ? += fsl-diu-fb.o
>> ?obj-$(CONFIG_FB_COBALT) ? ? ? ? ? += cobalt_lcdfb.o
>> ?obj-$(CONFIG_FB_PNX4008_DUM) ? += pnx4008/
>> diff --git a/drivers/video/s5p-dsim.c b/drivers/video/s5p-dsim.c
>> new file mode 100644
>> index 0000000..96893bc
>> --- /dev/null
>> +++ b/drivers/video/s5p-dsim.c
>> @@ -0,0 +1,483 @@
>> +/* linux/drivers/video/samsung/s5p-dsim.c
>> + *
>> + * Samsung MIPI-DSIM driver.
>> + *
>> + * InKi Dae, <inki.dae@samsung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> +*/
>> +
>> +#include <linux/module.h>
>> +#include <linux/kernel.h>
>> +#include <linux/errno.h>
>> +#include <linux/clk.h>
>> +#include <linux/mutex.h>
>> +#include <linux/wait.h>
>> +#include <linux/fs.h>
>> +#include <linux/mm.h>
>> +#include <linux/fb.h>
>> +#include <linux/ctype.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/io.h>
>> +#include <linux/irq.h>
>> +#include <linux/memory.h>
>> +#include <linux/delay.h>
>> +#include <linux/interrupt.h>
>> +#include <linux/kthread.h>
>> +#include <linux/regulator/consumer.h>
>> +#include <linux/notifier.h>
>> +
>> +#include <plat/fb.h>
>> +#include <plat/regs-dsim.h>
>> +#include <plat/dsim.h>
>> +#include <plat/mipi_ddi.h>
>> +
>> +#include <mach/map.h>
>> +
>> +#include "s5p_dsim_common.h"
>> +
>> +struct mipi_lcd_info {
>> + ? ? struct list_head ? ? ? ?list;
>> + ? ? struct mipi_lcd_driver ?*mipi_drv;
>> +};
>> +
>> +static LIST_HEAD(lcd_info_list);
>> +static DEFINE_MUTEX(mipi_lock);
>> +
>> +struct dsim_global dsim;
>> +
>> +struct s5p_platform_dsim *to_dsim_plat(struct device *dev)
>> +{
>> + ? ? struct platform_device *pdev = to_platform_device(dev);
>> +
>> + ? ? return (struct s5p_platform_dsim *)pdev->dev.platform_data;
>> +}
>
> that's return dev->platform_data.
>
>> +/*
>> + * notifier callback function for fb_blank
>> + * - this function would be called by device specific fb_blank.
>> + */
>> +static int s5p_dsim_notifier_callback(struct notifier_block *self,
>> + ? ? unsigned long event, void *data)
>> +{
>> + ? ? pm_message_t pm;
>> +
>> + ? ? pm.event = 0;
>
> do we really need to produce this pm structure.
>
It's unnecessary code, entered by mistake.
it will be removed.
>> + ? ? switch (event) {
>> + ? ? case FB_BLANK_UNBLANK:
>> + ? ? case FB_BLANK_NORMAL:
>> + ? ? ? ? ? ? if (dsim.pd->mipi_power)
>> + ? ? ? ? ? ? ? ? ? ? dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? (void *) dsim.r_mipi_1_8v, 1);
>> +
>> + ? ? ? ? ? ? clk_enable(dsim.clock);
>> +
>> + ? ? ? ? ? ? if (dsim.mipi_drv->resume)
>> + ? ? ? ? ? ? ? ? ? ? dsim.mipi_drv->resume(dsim.dev);
>> +
>> + ? ? ? ? ? ? s5p_dsim_init_dsim(&dsim);
>> + ? ? ? ? ? ? s5p_dsim_init_link(&dsim);
>> +
>> + ? ? ? ? ? ? s5p_dsim_set_hs_enable(&dsim);
>> + ? ? ? ? ? ? s5p_dsim_set_data_transfer_mode(&dsim,
>> + ? ? ? ? ? ? ? ? ? ? DSIM_TRANSFER_BYCPU, 1);
>> +
>> + ? ? ? ? ? ? /* it needs delay for stabilization */
>> + ? ? ? ? ? ? mdelay(dsim.pd->delay_for_stabilization);
>> +
>> + ? ? ? ? ? ? if (dsim.mipi_drv->init)
>> + ? ? ? ? ? ? ? ? ? ? dsim.mipi_drv->init(dsim.dev);
>> + ? ? ? ? ? ? else
>> + ? ? ? ? ? ? ? ? ? ? dev_warn(dsim.dev, "init func is null.\n");
>> +
>> + ? ? ? ? ? ? s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
>> +
>> + ? ? ? ? ? ? s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
>> + ? ? ? ? ? ? dsim.mipi_ddi_pd->resume_complete = 1;
>> +
>> + ? ? ? ? ? ? dev_dbg(dsim.dev, "FB_BLANK_NORMAL or UNBLANK.\n");
>> +
>> + ? ? ? ? ? ? break;
>> + ? ? case FB_BLANK_POWERDOWN:
>> + ? ? ? ? ? ? dsim.mipi_ddi_pd->resume_complete = 0;
>> +
>> + ? ? ? ? ? ? if (dsim.mipi_drv->suspend)
>> + ? ? ? ? ? ? ? ? ? ? dsim.mipi_drv->suspend(dsim.dev, pm);
>> +
>> + ? ? ? ? ? ? clk_disable(dsim.clock);
>> +
>> + ? ? ? ? ? ? if (dsim.pd->mipi_power)
>> + ? ? ? ? ? ? ? ? ? ? dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? (void *) dsim.r_mipi_1_8v, 0);
>> +
>> + ? ? ? ? ? ? dev_dbg(dsim.dev, "FB_BLANK_POWERDOWN.\n");
>> + ? ? ? ? ? ? break;
>> + ? ? default:
>> + ? ? ? ? ? ? dev_warn(dsim.dev, "unknown FB_BLANK command.\n");
>> + ? ? ? ? ? ? break;
>> + ? ? }
>> +
>> + ? ? return 0;
>> +}
>> +
>> +static int s5p_dsim_register_notif(struct device *dev)
>> +{
>> + ? ? memset(&dsim.s3cfb_notif, 0, sizeof(struct notifier_block));
>> + ? ? dsim.s3cfb_notif.notifier_call = s5p_dsim_notifier_callback;
>> +
>> + ? ? return 0/*s3cfb_register_client(&dsim.s3cfb_notif)*/;
>> +}
>> +
>> +static irqreturn_t s5p_dsim_interrupt_handler(int irq, void *dev_id)
>> +{
>> + ? ? disable_irq(irq);
>> +
>> + ? ? /* additional work. */
>> +
>> + ? ? enable_irq(irq);
>> +
>> + ? ? return IRQ_HANDLED;
>> +}
>
> ?
>
>> +
>> +int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv)
>> +{
>> + ? ? struct mipi_lcd_info ? ?*lcd_info = NULL;
>> +
>> + ? ? lcd_info = kmalloc(sizeof(struct mipi_lcd_info), GFP_KERNEL);
>> + ? ? if (lcd_info == NULL)
>> + ? ? ? ? ? ? return -ENOMEM;
>> +
>> + ? ? lcd_info->mipi_drv = kmalloc(sizeof(struct mipi_lcd_driver),
>> + ? ? ? ? ? ? GFP_KERNEL);
>> + ? ? if (lcd_info->mipi_drv == NULL)
>> + ? ? ? ? ? ? return -ENOMEM;
>> +
>> +
>> + ? ? memcpy(lcd_info->mipi_drv, lcd_drv, sizeof(struct mipi_lcd_driver));
>> +
>> + ? ? mutex_lock(&mipi_lock);
>> + ? ? list_add_tail(&lcd_info->list, &lcd_info_list);
>> + ? ? mutex_unlock(&mipi_lock);
>> +
>> + ? ? dev_dbg(dsim.dev, "registered panel driver(%s) to mipi-dsi driver.\n",
>> + ? ? ? ? ? ? lcd_drv->name);
>> +
>> + ? ? return 0;
>> +}
>> +
>> +/*
>> + * This function is wrapper for changing transfer mode.
>> + * It is used to in panel driver before and after changing gamma value.
>> + */
>> +static int s5p_dsim_change_transfer_mode(int mode)
>> +{
>> + ? ? if (mode < 0 || mode > 1) {
>> + ? ? ? ? ? ? dev_err(dsim.dev, "mode range should be 0 or 1.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> + ? ? if (mode == 0)
>> + ? ? ? ? ? ? s5p_dsim_set_data_transfer_mode(&dsim,
>> + ? ? ? ? ? ? ? ? ? ? DSIM_TRANSFER_BYCPU, mode);
>> + ? ? else
>> + ? ? ? ? ? ? s5p_dsim_set_data_transfer_mode(&dsim,
>> + ? ? ? ? ? ? ? ? ? ? DSIM_TRANSFER_BYLCDC, mode);
>> +
>> + ? ? return 0;
>> +}
>> +
>> +struct mipi_lcd_driver *scan_mipi_driver(const char *name)
>> +{
>> + ? ? struct mipi_lcd_info *lcd_info;
>> + ? ? struct mipi_lcd_driver *mipi_drv = NULL;
>> +
>> + ? ? mutex_lock(&mipi_lock);
>> +
>> + ? ? dev_dbg(dsim.dev, "find lcd panel driver(%s).\n",
>> + ? ? ? ? ? ? name);
>> +
>> + ? ? list_for_each_entry(lcd_info, &lcd_info_list, list) {
>> + ? ? ? ? ? ? mipi_drv = lcd_info->mipi_drv;
>> +
>> + ? ? ? ? ? ? if ((strcmp(mipi_drv->name, name)) == 0) {
>> + ? ? ? ? ? ? ? ? ? ? mutex_unlock(&mipi_lock);
>> + ? ? ? ? ? ? ? ? ? ? dev_dbg(dsim.dev, "found!!!(%s).\n", mipi_drv->name);
>> + ? ? ? ? ? ? ? ? ? ? return mipi_drv;
>> + ? ? ? ? ? ? }
>> + ? ? }
>> +
>> + ? ? dev_warn(dsim.dev, "failed to find lcd panel driver(%s).\n",
>> + ? ? ? ? ? ? name);
>> +
>> + ? ? mutex_unlock(&mipi_lock);
>> +
>> + ? ? return NULL;
>> +}
>> +
>> +static int s5p_dsim_probe(struct platform_device *pdev)
>> +{
>> + ? ? struct resource *res;
>> + ? ? int ret = -1;
>> +
>> + ? ? dsim.pd = to_dsim_plat(&pdev->dev);
>> + ? ? dsim.dev = &pdev->dev;
>> +
>> + ? ? /* set dsim config data, dsim lcd config data and lcd panel data. */
>> + ? ? dsim.dsim_info = dsim.pd->dsim_info;
>> + ? ? dsim.dsim_lcd_info = dsim.pd->dsim_lcd_info;
>> + ? ? dsim.lcd_panel_info =
>> + ? ? ? ? ? ? (struct fb_videomode *) dsim.dsim_lcd_info->lcd_panel_info;
>
> why isn't this in the correct type to begin with.
>
I used 'void *' type to avoid including header.
>> + ? ? dsim.mipi_ddi_pd =
>> + ? ? ? ? ? ? (struct mipi_ddi_platform_data *)
>> + ? ? ? ? ? ? ? ? ? ? dsim.dsim_lcd_info->mipi_ddi_pd;
>
> and again.
>
also.
>> + ? ? dsim.mipi_ddi_pd->resume_complete = 0;
>> +
>> + ? ? dsim.r_mipi_1_1v = regulator_get(&pdev->dev, "VMIPI_1.1V");
>> + ? ? if (IS_ERR(dsim.r_mipi_1_1v)) {
>> + ? ? ? ? ? ? dev_err(&pdev->dev, "failed to get regulator VMIPI_1.1V.\n");
>> + ? ? ? ? ? ? goto regulator_get_err;
>> + ? ? }
>> +
>> + ? ? dsim.r_mipi_1_8v = regulator_get(&pdev->dev, "VMIPI_1.8V");
>> + ? ? if (IS_ERR(dsim.r_mipi_1_8v)) {
>> + ? ? ? ? ? ? dev_err(&pdev->dev, "failed to get regulator VMIPI_1.8V.\n");
>> + ? ? ? ? ? ? goto regulator_get_err;
>> + ? ? }
>> +
>> + ? ? /* clock */
>> + ? ? dsim.clock = clk_get(&pdev->dev, dsim.pd->clk_name);
>> + ? ? if (IS_ERR(dsim.clock)) {
>> + ? ? ? ? ? ? dev_err(&pdev->dev, "failed to get dsim clock source\n");
>> + ? ? ? ? ? ? return -EINVAL;
>> + ? ? }
>> +
>> + ? ? clk_enable(dsim.clock);
>> +
>> + ? ? /* io memory */
>> + ? ? res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>> + ? ? if (!res) {
>> + ? ? ? ? ? ? dev_err(&pdev->dev, "failed to get io memory region\n");
>> + ? ? ? ? ? ? ret = -EINVAL;
>> + ? ? ? ? ? ? goto err_clk_disable;
>> + ? ? }
>> +
>> + ? ? /* request mem region */
>> + ? ? res = request_mem_region(res->start,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?res->end - res->start + 1, pdev->name);
> resource_size()
>
ok.
>> + ? ? if (!res) {
>> + ? ? ? ? ? ? dev_err(&pdev->dev, "failed to request io memory region\n");
>> + ? ? ? ? ? ? ret = -EINVAL;
>> + ? ? ? ? ? ? goto err_clk_disable;
>> + ? ? }
>> +
>> + ? ? /* ioremap for register block */
>> + ? ? dsim.reg_base = (unsigned int) ioremap(res->start,
>> + ? ? ? ? ? ? res->end - res->start + 1);
>
> ARGH. dsim.reg_base should be 'void __iomem *'
>
ok, it would be modified.
>> + ? ? if (!dsim.reg_base) {
>> + ? ? ? ? ? ? dev_err(&pdev->dev, "failed to remap io region\n");
>> + ? ? ? ? ? ? ret = -EINVAL;
>> + ? ? ? ? ? ? goto err_clk_disable;
>> + ? ? }
>> +
>> + ? ? /* it is used for MIPI-DSI based lcd panel driver. */
>> + ? ? dsim.mipi_ddi_pd->dsim_data = (void *)&dsim;
>> +
>> + ? ? /*
>> + ? ? ?* it uses frame done interrupt handler
>> + ? ? ?* only in case of MIPI Video mode.
>> + ? ? ?*/
>> + ? ? if (dsim.dsim_lcd_info->e_interface == DSIM_VIDEO) {
>> + ? ? ? ? ? ? dsim.irq = platform_get_irq(pdev, 0);
>> + ? ? ? ? ? ? if (request_irq(dsim.irq, s5p_dsim_interrupt_handler,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? IRQF_TRIGGER_RISING, "mipi-dsi", &dsim)) {
>
> do internal interrupts really need a trigger flag?
>
>> + ? ? ? ? ? ? ? ? ? ? dev_err(&pdev->dev, "request_irq failed.\n");
>> + ? ? ? ? ? ? ? ? ? ? goto err_trigger_irq;
>> + ? ? ? ? ? ? }
>> + ? ? }
>> +
>> + ? ? if (dsim.pd->mipi_power)
>> + ? ? ? ? ? ? dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
>> + ? ? ? ? ? ? ? ? ? ? (void *) dsim.r_mipi_1_8v, 1);
>> + ? ? else {
>> + ? ? ? ? ? ? dev_err(&pdev->dev, "mipi_power is NULL.\n");
>> + ? ? ? ? ? ? goto mipi_power_err;
>> + ? ? }
>> +
>> + ? ? /* find lcd panel driver registered to mipi-dsi driver. */
>> + ? ? dsim.mipi_drv = scan_mipi_driver(dsim.pd->lcd_panel_name);
>> + ? ? if (dsim.mipi_drv == NULL) {
>> + ? ? ? ? ? ? dev_err(&pdev->dev, "mipi_drv is NULL.\n");
>> + ? ? ? ? ? ? goto mipi_drv_err;
>> + ? ? }
>> +
>> + ? ? /* register callback functions that lcd panel driver needs. */
>> + ? ? dsim.mipi_ddi_pd->cmd_write = s5p_dsim_wr_data;
>> + ? ? dsim.mipi_ddi_pd->cmd_read = NULL;
>> + ? ? dsim.mipi_ddi_pd->get_dsim_frame_done =
>> + ? ? ? ? ? ? s5p_dsim_get_frame_done_status;
>> + ? ? dsim.mipi_ddi_pd->clear_dsim_frame_done = s5p_dsim_clear_frame_done;
>> + ? ? dsim.mipi_ddi_pd->change_dsim_transfer_mode =
>> + ? ? ? ? ? ? s5p_dsim_change_transfer_mode;
>> + ? ? dsim.mipi_ddi_pd->get_fb_frame_done = dsim.pd->get_fb_frame_done;
>> + ? ? dsim.mipi_ddi_pd->trigger = dsim.pd->trigger;
>
> this looks like it should have been in a struture to be copied.
>
ok, it's good point. it would be modified.
>> + ? ? /* set lcd panel driver link */
>> + ? ? ret = dsim.mipi_drv->set_link(dsim.mipi_ddi_pd);
>> + ? ? if (ret < 0) {
>> + ? ? ? ? ? ? dev_err(&pdev->dev, "failed to set link.\n");
>> + ? ? ? ? ? ? goto mipi_drv_err;
>> + ? ? }
>> +
>> + ? ? dsim.mipi_drv->probe(&pdev->dev);
>> +
>> + ? ? s5p_dsim_init_dsim(&dsim);
>> + ? ? s5p_dsim_init_link(&dsim);
>> +
>> + ? ? s5p_dsim_set_hs_enable(&dsim);
>> + ? ? s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
>> +
>> + ? ? /* it needs delay for stabilization */
>> + ? ? mdelay(dsim.pd->delay_for_stabilization);
>> +
>> + ? ? /* initialize lcd panel */
>> + ? ? if (dsim.mipi_drv->init)
>> + ? ? ? ? ? ? dsim.mipi_drv->init(&pdev->dev);
>> + ? ? else
>> + ? ? ? ? ? ? dev_warn(&pdev->dev, "init func is null.\n");
>> +
>> + ? ? if (dsim.mipi_drv->display_on)
>> + ? ? ? ? ? ? dsim.mipi_drv->display_on(&pdev->dev);
>> + ? ? else
>> + ? ? ? ? ? ? dev_warn(&pdev->dev, "display_on func is null.\n");
>> +
>> + ? ? s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
>> +
>> + ? ? s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
>> +
>> + ? ? s5p_dsim_register_notif(&pdev->dev);
>> +
>> + ? ? /* in case of command mode, trigger. */
>> + ? ? if (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) {
>> + ? ? ? ? ? ? if (dsim.pd->trigger)
>> + ? ? ? ? ? ? ? ? ? ? dsim.pd->trigger(registered_fb[0]);
>> + ? ? ? ? ? ? else
>> + ? ? ? ? ? ? ? ? ? ? dev_warn(&pdev->dev, "trigger is null.\n");
>> + ? ? }
>> +
>> + ? ? dev_info(&pdev->dev, "mipi-dsi driver(%s mode) has been probed.\n",
>> + ? ? ? ? ? ? (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) ?
>> + ? ? ? ? ? ? ? ? ? ? "CPU" : "RGB");
>> +
>> + ? ? return 0;
>> +
>> +err_trigger_irq:
>> +mipi_drv_err:
>> + ? ? dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
>> + ? ? ? ? ? ? (void *) dsim.r_mipi_1_8v, 0);
>> +
>> +mipi_power_err:
>> + ? ? iounmap((void __iomem *) dsim.reg_base);
>> +
>> +err_clk_disable:
>> + ? ? clk_disable(dsim.clock);
>> +
>> +regulator_get_err:
>> +
>> + ? ? return ret;
>> +
>> +}
>> +
>> +static int s5p_dsim_remove(struct platform_device *pdev)
>> +{
>> + ? ? return 0;
>> +}
>> +
>> +#ifdef CONFIG_PM
>> +int s5p_dsim_suspend(struct platform_device *pdev, pm_message_t state)
>> +{
>> + ? ? dsim.mipi_ddi_pd->resume_complete = 0;
>> +
>> + ? ? if (dsim.mipi_drv->suspend)
>> + ? ? ? ? ? ? dsim.mipi_drv->suspend(&pdev->dev, state);
>> +
>> + ? ? clk_disable(dsim.clock);
>> +
>> + ? ? if (dsim.pd->mipi_power)
>> + ? ? ? ? ? ? dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
>> + ? ? ? ? ? ? ? ? ? ? (void *) dsim.r_mipi_1_8v, 0);
>> +
>> + ? ? return 0;
>> +}
>> +
>> +int s5p_dsim_resume(struct platform_device *pdev)
>> +{
>> + ? ? if (dsim.pd->mipi_power)
>> + ? ? ? ? ? ? dsim.pd->mipi_power(&dsim, (void *) dsim.r_mipi_1_1v,
>> + ? ? ? ? ? ? ? ? ? ? (void *) dsim.r_mipi_1_8v, 1);
>> +
>> + ? ? clk_enable(dsim.clock);
>> +
>> + ? ? if (dsim.mipi_drv->resume)
>> + ? ? ? ? ? ? dsim.mipi_drv->resume(&pdev->dev);
>> +
>> + ? ? s5p_dsim_init_dsim(&dsim);
>> + ? ? s5p_dsim_init_link(&dsim);
>> +
>> + ? ? s5p_dsim_set_hs_enable(&dsim);
>> + ? ? s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
>> +
>> + ? ? /* it needs delay for stabilization */
>> + ? ? mdelay(dsim.pd->delay_for_stabilization);
>> +
>> + ? ? /* initialize lcd panel */
>> + ? ? if (dsim.mipi_drv->init)
>> + ? ? ? ? ? ? dsim.mipi_drv->init(&pdev->dev);
>> + ? ? else
>> + ? ? ? ? ? ? dev_warn(&pdev->dev, "init func is null.\n");
>> +
>> + ? ? s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
>> +
>> + ? ? s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
>> +
>> + ? ? dsim.mipi_ddi_pd->resume_complete = 1;
>> +
>> + ? ? return 0;
>> +}
>> +#else
>> +#define s5p_dsim_suspend NULL
>> +#define s5p_dsim_resume NULL
>> +#endif
>> +
>> +static struct platform_driver s5p_dsim_driver = {
>> + ? ? .probe = s5p_dsim_probe,
>> + ? ? .remove = s5p_dsim_remove,
>> + ? ? .suspend = s5p_dsim_suspend,
>> + ? ? .resume = s5p_dsim_resume,
>> + ? ? .driver = {
>> + ? ? ? ? ? ? ? ?.name = "s5p-dsim",
>> + ? ? ? ? ? ? ? ?.owner = THIS_MODULE,
>> + ? ? },
>> +};
>> +
>> +static int s5p_dsim_register(void)
>> +{
>> + ? ? platform_driver_register(&s5p_dsim_driver);
>> +
>> + ? ? return 0;
>> +}
>> +
>> +static void s5p_dsim_unregister(void)
>> +{
>> + ? ? platform_driver_unregister(&s5p_dsim_driver);
>> +}
>> +
>> +module_init(s5p_dsim_register);
>> +module_exit(s5p_dsim_unregister);
>> +
>> +MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
>> +MODULE_DESCRIPTION("Samusung MIPI-DSIM driver");
>> +MODULE_LICENSE("GPL");
>> diff --git a/drivers/video/s5p_dsim_common.c b/drivers/video/s5p_dsim_common.c
>> new file mode 100644
>> index 0000000..77724dc
>> --- /dev/null
>> +++ b/drivers/video/s5p_dsim_common.c
>> @@ -0,0 +1,753 @@
>> +/* linux/drivers/video/samsung/s5p_dsim_common.c
>> + *
>> + * Samsung MIPI-DSIM common driver.
>> + *
>> + * InKi Dae, <inki.dae@samsung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> +*/
>> +
>> +#include <linux/module.h>
>> +#include <linux/kernel.h>
>> +#include <linux/errno.h>
>> +#include <linux/mutex.h>
>> +#include <linux/wait.h>
>> +#include <linux/fs.h>
>> +#include <linux/mm.h>
>> +#include <linux/fb.h>
>> +#include <linux/ctype.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/io.h>
>> +#include <linux/memory.h>
>> +#include <linux/delay.h>
>> +#include <linux/kthread.h>
>> +
>> +#include <plat/fb.h>
>> +#include <plat/regs-dsim.h>
>> +
>> +#include <mach/map.h>
>> +#include <plat/dsim.h>
>> +#include <plat/mipi_ddi.h>
>> +
>> +#include "s5p_dsim_lowlevel.h"
>> +
>> +static void s5p_dsim_long_data_wr(struct dsim_global *dsim, unsigned int data0,
>> + ? ? unsigned int data1)
>> +{
>> + ? ? unsigned int data_cnt = 0, payload = 0;
>> +
>> + ? ? /* in case that data count is more then 4 */
>> + ? ? for (data_cnt = 0; data_cnt < data1; data_cnt += 4) {
>> + ? ? ? ? ? ? /*
>> + ? ? ? ? ? ? ?* after sending 4bytes per one time,
>> + ? ? ? ? ? ? ?* send remainder data less then 4.
>> + ? ? ? ? ? ? ?*/
>> + ? ? ? ? ? ? if ((data1 - data_cnt) < 4) {
>> + ? ? ? ? ? ? ? ? ? ? if ((data1 - data_cnt) == 3) {
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? payload = *(u8 *)(data0 + data_cnt) |
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? (*(u8 *)(data0 + (data_cnt + 2))) << 16;
>
> Erm, why wheren't these types kept as 'u8 *', this amount of casting
> should be ringing alarm bells all over the place.
>
>> + ? ? ? ? ? ? ? ? ? ? dev_dbg(dsim->dev, "count = 3 payload = %x, %x %x %x\n",
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? payload, *(u8 *)(data0 + data_cnt),
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? *(u8 *)(data0 + (data_cnt + 1)),
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? *(u8 *)(data0 + (data_cnt + 2)));
>> + ? ? ? ? ? ? ? ? ? ? } else if ((data1 - data_cnt) == 2) {
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? payload = *(u8 *)(data0 + data_cnt) |
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? (*(u8 *)(data0 + (data_cnt + 1))) << 8;
>> + ? ? ? ? ? ? ? ? ? ? dev_dbg(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? "count = 2 payload = %x, %x %x\n", payload,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? *(u8 *)(data0 + data_cnt),
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? *(u8 *)(data0 + (data_cnt + 1)));
>> + ? ? ? ? ? ? ? ? ? ? } else if ((data1 - data_cnt) == 1) {
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? payload = *(u8 *)(data0 + data_cnt);
>> + ? ? ? ? ? ? ? ? ? ? }
>> +
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_wr_tx_data(dsim, payload);
>> + ? ? ? ? ? ? /* send 4bytes per one time. */
>> + ? ? ? ? ? ? } else {
>> + ? ? ? ? ? ? ? ? ? ? payload = *(u8 *)(data0 + data_cnt) |
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? (*(u8 *)(data0 + (data_cnt + 2))) << 16 |
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? (*(u8 *)(data0 + (data_cnt + 3))) << 24;
>> +
>> + ? ? ? ? ? ? ? ? ? ? dev_dbg(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? "count = 4 payload = %x, %x %x %x %x\n",
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? payload, *(u8 *)(data0 + data_cnt),
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? *(u8 *)(data0 + (data_cnt + 1)),
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? *(u8 *)(data0 + (data_cnt + 2)),
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? *(u8 *)(data0 + (data_cnt + 3)));
>> +
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_wr_tx_data(dsim, payload);
>> + ? ? ? ? ? ? }
>> + ? ? }
>> +}
>> +
>> +int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
>> + ? ? unsigned int data0, unsigned int data1)
>> +{
>> + ? ? struct dsim_global *dsim = NULL;
>> + ? ? unsigned int timeout = 5000 * 2;
>> + ? ? unsigned long delay_val, udelay;
>> + ? ? unsigned char check_rx_ack = 0;
>> +
>> + ? ? dsim = (struct dsim_global *)dsim_data;
>> +
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? dev_err(dsim->dev, "dsim_data is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> +
>> + ? ? if (dsim->state == DSIM_STATE_ULPS) {
>> + ? ? ? ? ? ? dev_err(dsim->dev, "state is ULPS.\n");
>> +
>> + ? ? ? ? ? ? return -EINVAL;
>> + ? ? }
>> +
>> + ? ? delay_val = 1000000 / dsim->dsim_info->esc_clk;
>> + ? ? udelay = 10 * delay_val;
>> +
>> + ? ? mdelay(udelay);
>> +
>> + ? ? /* only if transfer mode is LPDT, wait SFR becomes empty. */
>> + ? ? if (dsim->state == DSIM_STATE_STOP) {
>> + ? ? ? ? ? ? while (!(s5p_dsim_get_fifo_state(dsim) &
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? SFR_HEADER_EMPTY)) {
>> + ? ? ? ? ? ? ? ? ? ? if ((timeout--) > 0)
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? mdelay(1);
>> + ? ? ? ? ? ? ? ? ? ? else {
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? dev_err(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "SRF header fifo is not empty.\n");
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? return -EINVAL;
>> + ? ? ? ? ? ? ? ? ? ? }
>> + ? ? ? ? ? ? }
>> + ? ? }
>> +
>> + ? ? switch (data_id) {
>> + ? ? /* short packet types of packet types for command. */
>> + ? ? case GEN_SHORT_WR_NO_PARA:
>> + ? ? case GEN_SHORT_WR_1_PARA:
>> + ? ? case GEN_SHORT_WR_2_PARA:
>> + ? ? case DCS_WR_NO_PARA:
>> + ? ? case DCS_WR_1_PARA:
>> + ? ? case SET_MAX_RTN_PKT_SIZE:
>> + ? ? ? ? ? ? s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
>> + ? ? ? ? ? ? ? ? ? ? (unsigned char) data0, (unsigned char) data1);
>> + ? ? ? ? ? ? if (check_rx_ack)
>> + ? ? ? ? ? ? ? ? ? ? /* process response func should be implemented */
>> + ? ? ? ? ? ? ? ? ? ? return 0;
>> + ? ? ? ? ? ? else
>> + ? ? ? ? ? ? ? ? ? ? return -EINVAL;
>> +
>> + ? ? /* general command */
>> + ? ? case CMD_OFF:
>> + ? ? case CMD_ON:
>> + ? ? case SHUT_DOWN:
>> + ? ? case TURN_ON:
>> + ? ? ? ? ? ? s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
>> + ? ? ? ? ? ? ? ? ? ? (unsigned char) data0, (unsigned char) data1);
>> + ? ? ? ? ? ? if (check_rx_ack)
>> + ? ? ? ? ? ? ? ? ? ? /* process response func should be implemented. */
>> + ? ? ? ? ? ? ? ? ? ? return 0;
>> + ? ? ? ? ? ? else
>> + ? ? ? ? ? ? ? ? ? ? return -EINVAL;
>> +
>> + ? ? /* packet types for video data */
>> + ? ? case VSYNC_START:
>> + ? ? case VSYNC_END:
>> + ? ? case HSYNC_START:
>> + ? ? case HSYNC_END:
>> + ? ? case EOT_PKT:
>> + ? ? ? ? ? ? return 0;
>> +
>> + ? ? /* short and response packet types for command */
>> + ? ? case GEN_RD_1_PARA:
>> + ? ? case GEN_RD_2_PARA:
>> + ? ? case GEN_RD_NO_PARA:
>> + ? ? case DCS_RD_NO_PARA:
>> + ? ? ? ? ? ? s5p_dsim_clear_interrupt(dsim, 0xffffffff);
>> + ? ? ? ? ? ? s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
>> + ? ? ? ? ? ? ? ? ? ? (unsigned char) data0, (unsigned char) data1);
>> + ? ? ? ? ? ? /* process response func should be implemented. */
>> + ? ? ? ? ? ? return 0;
>> +
>> + ? ? /* long packet type and null packet */
>> + ? ? case NULL_PKT:
>> + ? ? case BLANKING_PKT:
>> + ? ? ? ? ? ? return 0;
>> + ? ? case GEN_LONG_WR:
>> + ? ? case DCS_LONG_WR:
>> + ? ? {
>> + ? ? ? ? ? ? unsigned int size, data_cnt = 0, payload = 0;
>> +
>> + ? ? ? ? ? ? size = data1 * 4;
>> +
>> + ? ? ? ? ? ? /* if data count is less then 4, then send 3bytes data. ?*/
>> + ? ? ? ? ? ? if (data1 < 4) {
>> + ? ? ? ? ? ? ? ? ? ? payload = *(u8 *)(data0) |
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? *(u8 *)(data0 + 1) << 8 |
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? *(u8 *)(data0 + 2) << 16;
>> +
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_wr_tx_data(dsim, payload);
>> +
>> + ? ? ? ? ? ? ? ? ? ? dev_dbg(dsim->dev, "count = %d payload = %x,%x %x %x\n",
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? data1, payload,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? *(u8 *)(data0 + data_cnt),
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? *(u8 *)(data0 + (data_cnt + 1)),
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? *(u8 *)(data0 + (data_cnt + 2)));
>> + ? ? ? ? ? ? /* in case that data count is more then 4 */
>> + ? ? ? ? ? ? } else
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_long_data_wr(dsim, data0, data1);
>> +
>> + ? ? ? ? ? ? /* put data into header fifo */
>> + ? ? ? ? ? ? s5p_dsim_wr_tx_header(dsim, (unsigned char) data_id,
>> + ? ? ? ? ? ? ? ? ? ? (unsigned char) (((unsigned short) data1) & 0xff),
>> + ? ? ? ? ? ? ? ? ? ? (unsigned char) ((((unsigned short) data1) & 0xff00) >>
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? 8));
>> +
>> + ? ? }
>> + ? ? if (check_rx_ack)
>> + ? ? ? ? ? ? /* process response func should be implemented. */
>> + ? ? ? ? ? ? return 0;
>> + ? ? else
>> + ? ? ? ? ? ? return -EINVAL;
>> +
>> + ? ? /* packet typo for video data */
>> + ? ? case RGB565_PACKED:
>> + ? ? case RGB666_PACKED:
>> + ? ? case RGB666_LOOSLY:
>> + ? ? case RGB888_PACKED:
>> + ? ? ? ? ? ? if (check_rx_ack)
>> + ? ? ? ? ? ? ? ? ? ? /* process response func should be implemented. */
>> + ? ? ? ? ? ? ? ? ? ? return 0;
>> + ? ? ? ? ? ? else
>> + ? ? ? ? ? ? ? ? ? ? return -EINVAL;
>> + ? ? default:
>> + ? ? ? ? ? ? dev_warn(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? "data id %x is not supported current DSI spec.\n",
>> + ? ? ? ? ? ? ? ? ? ? data_id);
>> +
>> + ? ? ? ? ? ? return -EINVAL;
>> + ? ? }
>> +
>> + ? ? return 0;
>> +}
>> +
>> +int s5p_dsim_init_header_fifo(struct dsim_global *dsim)
>> +{
>> + ? ? unsigned int cnt;
>> +
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> + ? ? for (cnt = 0; cnt < DSIM_HEADER_FIFO_SZ; cnt++)
>> + ? ? ? ? ? ? dsim->header_fifo_index[cnt] = -1;
>> + ? ? return 0;
>> +}
>> +
>> +int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned char enable)
>
> how about 'bool' for enable.
>
ok, it would be modified.
>> +{
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> + ? ? if (enable) {
>> + ? ? ? ? ? ? int sw_timeout = 1000;
>> + ? ? ? ? ? ? s5p_dsim_clear_interrupt(dsim, DSIM_PLL_STABLE);
>> + ? ? ? ? ? ? s5p_dsim_enable_pll(dsim, 1);
>> + ? ? ? ? ? ? while (1) {
>> + ? ? ? ? ? ? ? ? ? ? sw_timeout--;
>> + ? ? ? ? ? ? ? ? ? ? if (s5p_dsim_is_pll_stable(dsim))
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? return 0;
>> + ? ? ? ? ? ? ? ? ? ? if (sw_timeout == 0)
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? return -EINVAL;
>> + ? ? ? ? ? ? }
>> + ? ? } else
>> + ? ? ? ? ? ? s5p_dsim_enable_pll(dsim, 0);
>> +
>> + ? ? return 0;
>> +}
>> +
>> +unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
>> + ? ? unsigned char pre_divider, unsigned short main_divider,
>> + ? ? unsigned char scaler)
>> +{
>> + ? ? unsigned long dfin_pll, dfvco, dpll_out;
>> + ? ? unsigned char freq_band;
>> +
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + ? ? ? ? ? ? return 0;
>> + ? ? }
>> +
>> + ? ? dfin_pll = (MIPI_FIN / pre_divider);
>> +
>> + ? ? if (dfin_pll < 6 * 1000 * 1000 || dfin_pll > 12 * 1000 * 1000) {
>> + ? ? ? ? ? ? dev_warn(dsim->dev, "warning!!\n");
>> + ? ? ? ? ? ? dev_warn(dsim->dev, "fin_pll range is 6MHz ~ 12MHz\n");
>> + ? ? ? ? ? ? dev_warn(dsim->dev, "fin_pll of mipi dphy pll is %luMHz\n",
>> + ? ? ? ? ? ? ? ? ? ? (dfin_pll / 1000000));
>> +
>> + ? ? ? ? ? ? s5p_dsim_enable_afc(dsim, 0, 0);
>> + ? ? } else {
>> + ? ? ? ? ? ? if (dfin_pll < 7 * 1000000)
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_enable_afc(dsim, 1, 0x1);
>> + ? ? ? ? ? ? else if (dfin_pll < 8 * 1000000)
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_enable_afc(dsim, 1, 0x0);
>> + ? ? ? ? ? ? else if (dfin_pll < 9 * 1000000)
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_enable_afc(dsim, 1, 0x3);
>> + ? ? ? ? ? ? else if (dfin_pll < 10 * 1000000)
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_enable_afc(dsim, 1, 0x2);
>> + ? ? ? ? ? ? else if (dfin_pll < 11 * 1000000)
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_enable_afc(dsim, 1, 0x5);
>> + ? ? ? ? ? ? else
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_enable_afc(dsim, 1, 0x4);
>> + ? ? }
>> +
>> + ? ? dfvco = dfin_pll * main_divider;
>> + ? ? dev_dbg(dsim->dev, "dfvco = %lu, dfin_pll = %lu, main_divider = %d\n",
>> + ? ? ? ? ? ? dfvco, dfin_pll, main_divider);
>> + ? ? if (dfvco < 500000000 || dfvco > 1000000000) {
>> + ? ? ? ? ? ? dev_warn(dsim->dev, "Caution!!\n");
>> + ? ? ? ? ? ? dev_warn(dsim->dev, "fvco range is 500MHz ~ 1000MHz\n");
>> + ? ? ? ? ? ? dev_warn(dsim->dev, "fvco of mipi dphy pll is %luMHz\n",
>> + ? ? ? ? ? ? ? ? ? ? (dfvco / 1000000));
>> + ? ? }
>> +
>> + ? ? dpll_out = dfvco / (1 << scaler);
>> + ? ? dev_dbg(dsim->dev, "dpll_out = %lu, dfvco = %lu, scaler = %d\n",
>> + ? ? ? ? ? ? dpll_out, dfvco, scaler);
>> + ? ? if (dpll_out < 100 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0x0;
>> + ? ? else if (dpll_out < 120 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0x1;
>> + ? ? else if (dpll_out < 170 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0x2;
>> + ? ? else if (dpll_out < 220 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0x3;
>> + ? ? else if (dpll_out < 270 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0x4;
>> + ? ? else if (dpll_out < 320 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0x5;
>> + ? ? else if (dpll_out < 390 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0x6;
>> + ? ? else if (dpll_out < 450 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0x7;
>> + ? ? else if (dpll_out < 510 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0x8;
>> + ? ? else if (dpll_out < 560 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0x9;
>> + ? ? else if (dpll_out < 640 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0xa;
>> + ? ? else if (dpll_out < 690 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0xb;
>> + ? ? else if (dpll_out < 770 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0xc;
>> + ? ? else if (dpll_out < 870 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0xd;
>> + ? ? else if (dpll_out < 950 * 1000000)
>> + ? ? ? ? ? ? freq_band = 0xe;
>> + ? ? else
>> + ? ? ? ? ? ? freq_band = 0xf;
>
> something says a divide down before the ompatr would have been
> a good idea, it is almost a table.
>
>> + ? ? dev_dbg(dsim->dev, "freq_band = %d\n", freq_band);
>> +
>> + ? ? s5p_dsim_pll_freq(dsim, pre_divider, main_divider, scaler);
>> +
>> + ? ? {
>> + ? ? ? ? unsigned char temp0, temp1;
>> +
>> + ? ? ? ? temp0 = 0;
>> + ? ? ? ? s5p_dsim_hs_zero_ctrl(dsim, temp0);
>> + ? ? ? ? temp1 = 0;
>> + ? ? ? ? s5p_dsim_prep_ctrl(dsim, temp1);
>> + ? ? }
>> +
>> + ? ? /* Freq Band */
>> + ? ? s5p_dsim_pll_freq_band(dsim, freq_band);
>> +
>> + ? ? /* Stable time */
>> + ? ? s5p_dsim_pll_stable_time(dsim,
>> + ? ? ? ? ? ? dsim->dsim_info->pll_stable_time);
>> +
>> + ? ? /* Enable PLL */
>> + ? ? dev_dbg(dsim->dev, "FOUT of mipi dphy pll is %luMHz\n",
>> + ? ? ? ? ? ? (dpll_out / 1000000));
>> +
>> + ? ? return dpll_out;
>> +}
>> +
>> +int s5p_dsim_set_clock(struct dsim_global *dsim,
>> + ? ? unsigned char byte_clk_sel, unsigned char enable)
>> +{
>> + ? ? unsigned int esc_div;
>> + ? ? unsigned long esc_clk_error_rate;
>> +
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + ? ? ? ? ? ? return -EINVAL;
>> + ? ? }
>
> again, how about making this code WARN_ON?
>
>
>> + ? ? if (enable) {
>> + ? ? ? ? ? ? dsim->e_clk_src = byte_clk_sel;
>> +
>> + ? ? ? ? ? ? /* Escape mode clock and byte clock source */
>> + ? ? ? ? ? ? s5p_dsim_set_byte_clock_src(dsim, byte_clk_sel);
>> +
>> + ? ? ? ? ? ? /* DPHY, DSIM Link : D-PHY clock out */
>> + ? ? ? ? ? ? if (byte_clk_sel == DSIM_PLL_OUT_DIV8) {
>> + ? ? ? ? ? ? ? ? ? ? dsim->hs_clk = s5p_dsim_change_pll(dsim,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? dsim->dsim_info->p, dsim->dsim_info->m,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? dsim->dsim_info->s);
>> + ? ? ? ? ? ? ? ? ? ? if (dsim->hs_clk == 0) {
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? dev_err(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "failed to get hs clock.\n");
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? return -EINVAL;
>> + ? ? ? ? ? ? ? ? ? ? }
>> +
>> + ? ? ? ? ? ? ? ? ? ? dsim->byte_clk = dsim->hs_clk / 8;
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_enable_pll_bypass(dsim, 0);
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_pll_on(dsim, 1);
>> + ? ? ? ? ? ? /* DPHY : D-PHY clock out, DSIM link : external clock out */
>> + ? ? ? ? ? ? } else if (byte_clk_sel == DSIM_EXT_CLK_DIV8)
>> + ? ? ? ? ? ? ? ? ? ? dev_warn(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? "this project is not support \
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? external clock source for MIPI DSIM\n");
>> + ? ? ? ? ? ? else if (byte_clk_sel == DSIM_EXT_CLK_BYPASS)
>> + ? ? ? ? ? ? ? ? ? ? dev_warn(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? "this project is not support \
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? external clock source for MIPI DSIM\n");
>> +
>> + ? ? ? ? ? ? /* escape clock divider */
>> + ? ? ? ? ? ? esc_div = dsim->byte_clk / (dsim->dsim_info->esc_clk);
>> + ? ? ? ? ? ? dev_dbg(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? "esc_div = %d, byte_clk = %lu, esc_clk = %lu\n",
>> + ? ? ? ? ? ? ? ? ? ? esc_div, dsim->byte_clk, dsim->dsim_info->esc_clk);
>> + ? ? ? ? ? ? if ((dsim->byte_clk / esc_div) >= 20000000 ||
>> + ? ? ? ? ? ? ? ? ? ? (dsim->byte_clk / esc_div) > dsim->dsim_info->esc_clk)
>> + ? ? ? ? ? ? ? ? ? ? esc_div += 1;
>> +
>> + ? ? ? ? ? ? dsim->escape_clk = dsim->byte_clk / esc_div;
>> + ? ? ? ? ? ? dev_dbg(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? "escape_clk = %lu, byte_clk = %lu, esc_div = %d\n",
>> + ? ? ? ? ? ? ? ? ? ? dsim->escape_clk, dsim->byte_clk, esc_div);
>> +
>> + ? ? ? ? ? ? /*
>> + ? ? ? ? ? ? ?* enable escclk on lane
>> + ? ? ? ? ? ? ?*
>> + ? ? ? ? ? ? ?* in case of evt0, DSIM_TRUE is enable and
>> + ? ? ? ? ? ? ?* DSIM_FALSE is enable for evt1.
>> + ? ? ? ? ? ? ?*/
>> + ? ? ? ? ? ? if (dsim->pd->platform_rev == 1)
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
>> + ? ? ? ? ? ? else
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
>> +
>> + ? ? ? ? ? ? /* enable byte clk and escape clock */
>> + ? ? ? ? ? ? s5p_dsim_set_esc_clk_prs(dsim, 1, esc_div);
>> + ? ? ? ? ? ? /* escape clock on lane */
>> + ? ? ? ? ? ? s5p_dsim_enable_esc_clk_on_lane(dsim,
>> + ? ? ? ? ? ? ? ? ? ? (DSIM_LANE_CLOCK | dsim->data_lane), 1);
>> +
>> + ? ? ? ? ? ? dev_dbg(dsim->dev, "byte clock is %luMHz\n",
>> + ? ? ? ? ? ? ? ? ? ? (dsim->byte_clk / 1000000));
>> + ? ? ? ? ? ? dev_dbg(dsim->dev, "escape clock that user's need is %lu\n",
>> + ? ? ? ? ? ? ? ? ? ? (dsim->dsim_info->esc_clk / 1000000));
>> + ? ? ? ? ? ? dev_dbg(dsim->dev, "escape clock divider is %x\n", esc_div);
>> + ? ? ? ? ? ? dev_dbg(dsim->dev, "escape clock is %luMHz\n",
>> + ? ? ? ? ? ? ? ? ? ? ((dsim->byte_clk / esc_div) / 1000000));
>> +
>> + ? ? ? ? ? ? if ((dsim->byte_clk / esc_div) > dsim->escape_clk) {
>> + ? ? ? ? ? ? ? ? ? ? esc_clk_error_rate = dsim->escape_clk /
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? (dsim->byte_clk / esc_div);
>> + ? ? ? ? ? ? ? ? ? ? dev_warn(dsim->dev, "error rate is %lu over.\n",
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? (esc_clk_error_rate / 100));
>> + ? ? ? ? ? ? } else if ((dsim->byte_clk / esc_div) < (dsim->escape_clk)) {
>> + ? ? ? ? ? ? ? ? ? ? esc_clk_error_rate = (dsim->byte_clk / esc_div) /
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? dsim->escape_clk;
>> + ? ? ? ? ? ? ? ? ? ? dev_warn(dsim->dev, "error rate is %lu under.\n",
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? (esc_clk_error_rate / 100));
>> + ? ? ? ? ? ? }
>> + ? ? } else {
>> + ? ? ? ? ? ? s5p_dsim_enable_esc_clk_on_lane(dsim,
>> + ? ? ? ? ? ? ? ? ? ? (DSIM_LANE_CLOCK | dsim->data_lane), 0);
>> + ? ? ? ? ? ? s5p_dsim_set_esc_clk_prs(dsim, 0, 0);
>> +
>> + ? ? ? ? ? ? /*
>> + ? ? ? ? ? ? ?* in case of evt0, DSIM_FALSE is disable and
>> + ? ? ? ? ? ? ?* DSIM_TRUE is disable for evt1.
>> + ? ? ? ? ? ? ?*/
>> + ? ? ? ? ? ? if (dsim->pd->platform_rev == 1)
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
>> + ? ? ? ? ? ? else
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
>> +
>> + ? ? ? ? ? ? if (byte_clk_sel == DSIM_PLL_OUT_DIV8)
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_pll_on(dsim, 0);
>> + ? ? }
>> +
>> + ? ? return 0;
>> +}
>> +
>> +int s5p_dsim_init_dsim(struct dsim_global *dsim)
>> +{
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> + ? ? if (dsim->pd->init_d_phy)
>> + ? ? ? ? ? ? dsim->pd->init_d_phy(dsim);
>> +
>> + ? ? dsim->state = DSIM_STATE_RESET;
>> +
>> + ? ? switch (dsim->dsim_info->e_no_data_lane) {
>> + ? ? case DSIM_DATA_LANE_1:
>> + ? ? ? ? ? ? dsim->data_lane = DSIM_LANE_DATA0;
>> + ? ? ? ? ? ? break;
>> + ? ? case DSIM_DATA_LANE_2:
>> + ? ? ? ? ? ? dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1;
>> + ? ? ? ? ? ? break;
>> + ? ? case DSIM_DATA_LANE_3:
>> + ? ? ? ? ? ? dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
>> + ? ? ? ? ? ? ? ? ? ? DSIM_LANE_DATA2;
>> + ? ? ? ? ? ? break;
>> + ? ? case DSIM_DATA_LANE_4:
>> + ? ? ? ? ? ? dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
>> + ? ? ? ? ? ? ? ? ? ? DSIM_LANE_DATA2 | DSIM_LANE_DATA3;
>> + ? ? ? ? ? ? break;
>> + ? ? default:
>> + ? ? ? ? ? ? dev_info(dsim->dev, "data lane is invalid.\n");
>> + ? ? ? ? ? ? return -EINVAL;
>> + ? ? };
>> +
>> + ? ? s5p_dsim_init_header_fifo(dsim);
>> + ? ? s5p_dsim_sw_reset(dsim);
>> + ? ? s5p_dsim_dp_dn_swap(dsim, dsim->dsim_info->e_lane_swap);
>> +
>> + ? ? return 0;
>> +}
>> +
>> +int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim, int enable)
>> +{
>> + ? ? /* enable only frame done interrupt */
>> + ? ? s5p_dsim_set_interrupt_mask(dsim, INTMSK_FRAME_DONE, enable);
>> +
>> + ? ? return 0;
>> +}
>> +
>> +int s5p_dsim_set_display_mode(struct dsim_global *dsim,
>> + ? ? struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
>> +{
>> + ? ? struct fb_videomode *mlcd_video = NULL;
>> + ? ? struct fb_cmdmode *mlcd_command = NULL;
>> + ? ? struct s3c_fb_pd_win *pd;
>> + ? ? unsigned int width = 0, height = 0;
>> +
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> + ? ? pd = (struct s3c_fb_pd_win *)main_lcd->lcd_panel_info;
>> +
>> + ? ? /* in case of VIDEO MODE (RGB INTERFACE) */
>> + ? ? if (dsim->dsim_lcd_info->e_interface == (u32) DSIM_VIDEO) {
>> + ? ? ? ? ? ? mlcd_video = (struct fb_videomode *)&pd->win_mode;
>> + ? ? ? ? ? ? width = mlcd_video->xres;
>> + ? ? ? ? ? ? height = mlcd_video->yres;
>> +
>> + ? ? ? ? ? ? if (dsim->dsim_info->auto_vertical_cnt == DSIM_FALSE) {
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_set_main_disp_vporch(dsim,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? mlcd_video->upper_margin,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? mlcd_video->lower_margin, 0);
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_set_main_disp_hporch(dsim,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? mlcd_video->left_margin,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? mlcd_video->right_margin);
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_set_main_disp_sync_area(dsim,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? mlcd_video->vsync_len,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? mlcd_video->hsync_len);
>> + ? ? ? ? ? ? }
>> + ? ? } else { ? ? ? ?/* in case of COMMAND MODE (CPU or I80 INTERFACE) */
>> + ? ? ? ? ? ? mlcd_command = (struct fb_cmdmode *)&pd->cmd_mode;
>> + ? ? ? ? ? ? width = mlcd_command->xres;
>> + ? ? ? ? ? ? height = mlcd_command->yres;
>> + ? ? }
>> +
>> + ? ? s5p_dsim_set_main_disp_resol(dsim, height, width);
>> +
>> + ? ? if (sub_lcd != NULL)
>> + ? ? ? ? ? ? ? ? ? ? dev_warn(dsim->dev, "sub lcd isn't supported yet.\n");
>> +
>> + ? ? s5p_dsim_display_config(dsim, dsim->dsim_lcd_info, NULL);
>> +
>> + ? ? return 0;
>> +}
>> +
>> +int s5p_dsim_init_link(struct dsim_global *dsim)
>> +{
>> + ? ? unsigned int time_out = 100;
>> +
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> + ? ? switch (dsim->state) {
>> + ? ? case DSIM_STATE_RESET:
>> + ? ? ? ? ? ? s5p_dsim_sw_reset(dsim);
>> + ? ? case DSIM_STATE_INIT:
>> + ? ? ? ? ? ? s5p_dsim_init_fifo_pointer(dsim, 0x1f);
>> +
>> + ? ? ? ? ? ? /* dsi configuration */
>> + ? ? ? ? ? ? s5p_dsim_init_config(dsim, dsim->dsim_lcd_info,
>> + ? ? ? ? ? ? ? ? ? ? NULL, dsim->dsim_info);
>> + ? ? ? ? ? ? s5p_dsim_enable_lane(dsim, DSIM_LANE_CLOCK, 1);
>> + ? ? ? ? ? ? s5p_dsim_enable_lane(dsim, dsim->data_lane, 1);
>> +
>> + ? ? ? ? ? ? /* set clock configuration */
>> + ? ? ? ? ? ? s5p_dsim_set_clock(dsim, dsim->dsim_info->e_byte_clk,
>> + ? ? ? ? ? ? ? ? ? ? 1);
>> +
>> + ? ? ? ? ? ? /* check clock and data lane state is stop state */
>> + ? ? ? ? ? ? while (!(s5p_dsim_is_lane_state(dsim, DSIM_LANE_CLOCK)
>> + ? ? ? ? ? ? ? ? ? ? ? ? == DSIM_LANE_STATE_STOP) &&
>> + ? ? ? ? ? ? ? ? ? ? !(s5p_dsim_is_lane_state(dsim,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? dsim->data_lane) == DSIM_LANE_STATE_STOP)) {
>> + ? ? ? ? ? ? ? ? ? ? time_out--;
>> + ? ? ? ? ? ? ? ? ? ? if (time_out == 0) {
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? dev_info(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "DSI Master is not stop state.\n");
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? dev_info(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "Check initialization process\n");
>> +
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? return -EINVAL;
>> + ? ? ? ? ? ? ? ? ? ? }
>> + ? ? ? ? ? ? }
>> +
>> + ? ? ? ? ? ? if (time_out != 0) {
>> + ? ? ? ? ? ? ? ? ? ? dev_info(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? "initialization of DSI Master is successful\n");
>> + ? ? ? ? ? ? ? ? ? ? dev_info(dsim->dev, "DSI Master state is stop state\n");
>> + ? ? ? ? ? ? }
>> +
>> + ? ? ? ? ? ? dsim->state = DSIM_STATE_STOP;
>> +
>> + ? ? ? ? ? ? /* BTA sequence counters */
>> + ? ? ? ? ? ? s5p_dsim_set_stop_state_counter(dsim,
>> + ? ? ? ? ? ? ? ? ? ? dsim->dsim_info->stop_holding_cnt);
>> + ? ? ? ? ? ? s5p_dsim_set_bta_timeout(dsim,
>> + ? ? ? ? ? ? ? ? ? ? dsim->dsim_info->bta_timeout);
>> + ? ? ? ? ? ? s5p_dsim_set_lpdr_timeout(dsim,
>> + ? ? ? ? ? ? ? ? ? ? dsim->dsim_info->rx_timeout);
>> +
>> + ? ? ? ? ? ? /* default LPDT by both cpu and lcd controller */
>> + ? ? ? ? ? ? s5p_dsim_set_data_mode(dsim, DSIM_TRANSFER_BOTH,
>> + ? ? ? ? ? ? ? ? ? ? DSIM_STATE_STOP);
>> +
>> + ? ? ? ? ? ? return 0;
>> + ? ? default:
>> + ? ? ? ? ? ? dev_info(dsim->dev, "DSI Master is already init.\n");
>> + ? ? ? ? ? ? return 0;
>> + ? ? }
>> +
>> + ? ? return 0;
>> +}
>> +
>> +int s5p_dsim_set_hs_enable(struct dsim_global *dsim)
>> +{
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> + ? ? if (dsim->state == DSIM_STATE_STOP) {
>> + ? ? ? ? ? ? if (dsim->e_clk_src != DSIM_EXT_CLK_BYPASS) {
>> + ? ? ? ? ? ? ? ? ? ? dsim->state = DSIM_STATE_HSCLKEN;
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_set_data_mode(dsim,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? DSIM_TRANSFER_BOTH, DSIM_STATE_HSCLKEN);
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_enable_hs_clock(dsim, 1);
>> +
>> + ? ? ? ? ? ? ? ? ? ? return 0;
>> + ? ? ? ? ? ? } else
>> + ? ? ? ? ? ? ? ? ? ? dev_warn(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? "clock source is external bypass.\n");
>> + ? ? } else
>> + ? ? ? ? ? ? dev_warn(dsim->dev, "DSIM is not stop state.\n");
>> +
>> + ? ? return 0;
>> +}
>> +
>> +int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
>> + ? ? unsigned char data_path, unsigned char hs_enable)
>> +{
>> + ? ? int ret = -1;
>> +
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? printk(KERN_ERR "dsim_global pointer is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> + ? ? if (hs_enable) {
>> + ? ? ? ? ? ? if (dsim->state == DSIM_STATE_HSCLKEN) {
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_set_data_mode(dsim, data_path,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? DSIM_STATE_HSCLKEN);
>> + ? ? ? ? ? ? ? ? ? ? ret = 0;
>> + ? ? ? ? ? ? } else {
>> + ? ? ? ? ? ? ? ? ? ? dev_err(dsim->dev, "HS Clock lane is not enabled.\n");
>> + ? ? ? ? ? ? ? ? ? ? ret = -EINVAL;
>> + ? ? ? ? ? ? }
>> + ? ? } else {
>> + ? ? ? ? ? ? if (dsim->state == DSIM_STATE_INIT || dsim->state ==
>> + ? ? ? ? ? ? ? ? ? ? DSIM_STATE_ULPS) {
>> + ? ? ? ? ? ? ? ? ? ? dev_err(dsim->dev,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? "DSI Master is not STOP or HSDT state.\n");
>> + ? ? ? ? ? ? ? ? ? ? ret = -EINVAL;
>> + ? ? ? ? ? ? } else {
>> + ? ? ? ? ? ? ? ? ? ? s5p_dsim_set_data_mode(dsim, data_path,
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? DSIM_STATE_STOP);
>> + ? ? ? ? ? ? ? ? ? ? ret = 0;
>> + ? ? ? ? ? ? }
>> + ? ? }
>> +
>> + ? ? return ret;
>> +}
>> +
>> +int s5p_dsim_get_frame_done_status(void *dsim_data)
>> +{
>> + ? ? struct dsim_global *dsim = NULL;
>> +
>> + ? ? dsim = (struct dsim_global *)dsim_data;
>> +
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? dev_err(dsim->dev, "dsim_global pointer is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> + ? ? return _s5p_dsim_get_frame_done_status(dsim);
>> +}
>> +
>> +int s5p_dsim_clear_frame_done(void *dsim_data)
>> +{
>> + ? ? struct dsim_global *dsim = NULL;
>> +
>> + ? ? dsim = (struct dsim_global *)dsim_data;
>> +
>> + ? ? if (dsim == NULL) {
>> + ? ? ? ? ? ? dev_err(dsim->dev, "dsim_global pointer is NULL.\n");
>> + ? ? ? ? ? ? return -EFAULT;
>> + ? ? }
>> +
>> + ? ? _s5p_dsim_clear_frame_done(dsim);
>> +
>> + ? ? return 0;
>> +}
>> +
>> +MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
>> +MODULE_DESCRIPTION("Samusung MIPI-DSIM common driver");
>> +MODULE_LICENSE("GPL");
>> diff --git a/drivers/video/s5p_dsim_common.h b/drivers/video/s5p_dsim_common.h
>> new file mode 100644
>> index 0000000..deefca1
>> --- /dev/null
>> +++ b/drivers/video/s5p_dsim_common.h
>> @@ -0,0 +1,38 @@
>> +/* linux/drivers/video/samsung/s5p_dsim_common.h
>> + *
>> + * Header file for Samsung MIPI-DSI common driver.
>> + *
>> + * Copyright (c) 2009 Samsung Electronics
>> + * InKi Dae <inki.dae@samsung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> +*/
>> +
>> +#ifndef _S5P_DSIM_COMMON_H
>> +#define _S5P_DSIM_COMMON_H
>> +
>> +extern int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
>> + ? ? unsigned int data0, unsigned int data1);
>> +extern int s5p_dsim_init_header_fifo(struct dsim_global *dsim);
>> +extern int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned char enable);
>> +extern unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
>> + ? ? unsigned char pre_divider, unsigned short main_divider,
>> + ? ? unsigned char scaler);
>> +extern int s5p_dsim_set_clock(struct dsim_global *dsim,
>> + ? ? unsigned char byte_clk_sel, unsigned char enable);
>> +extern int s5p_dsim_init_dsim(struct dsim_global *dsim);
>> +extern int s5p_dsim_set_display_mode(struct dsim_global *dsim,
>> + ? ? struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd);
>> +extern int s5p_dsim_init_link(struct dsim_global *dsim);
>> +extern int s5p_dsim_set_hs_enable(struct dsim_global *dsim);
>> +extern int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
>> + ? ? unsigned char data_path, unsigned char hs_enable);
>> +extern int s5p_dsim_get_frame_done_status(void *dsim_data);
>> +extern int s5p_dsim_clear_frame_done(void *dsim_data);
>> +extern int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim, int enable);
>> +
>> +extern struct fb_info *registered_fb[FB_MAX] __read_mostly;
>> +
>> +#endif /* _S5P_DSIM_COMMON_H */
>> diff --git a/drivers/video/s5p_dsim_lowlevel.c b/drivers/video/s5p_dsim_lowlevel.c
>> new file mode 100644
>> index 0000000..6a27395
>> --- /dev/null
>> +++ b/drivers/video/s5p_dsim_lowlevel.c
>> @@ -0,0 +1,562 @@
>> +/* linux/drivers/video/samsung/s5p-dsim.c
>> + *
>> + * Samsung MIPI-DSIM lowlevel driver.
>> + *
>> + * InKi Dae, <inki.dae@samsung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> +*/
>> +
>> +#include <linux/module.h>
>> +#include <linux/kernel.h>
>> +#include <linux/errno.h>
>> +#include <linux/mutex.h>
>> +#include <linux/wait.h>
>> +#include <linux/delay.h>
>> +#include <linux/fs.h>
>> +#include <linux/mm.h>
>> +#include <linux/ctype.h>
>> +#include <linux/io.h>
>> +
>> +#include <mach/map.h>
>> +
>> +#include <plat/dsim.h>
>> +#include <plat/mipi_ddi.h>
>> +#include <plat/regs-dsim.h>
>> +
>> +void s5p_dsim_func_reset(struct dsim_global *dsim)
>> +{
>> + ? ? unsigned int cfg = 0;
>> +
>> + ? ? cfg = DSIM_FUNCRST;
>> +
>> + ? ? writel(cfg, dsim->reg_base + S5P_DSIM_SWRST);
>> +}
>
> so much easier to do
> ? ? ? ?writel(DSIM_FUNCRST, dsim->reg_base + S5P_DSIM_SWRST);
>
> much less space needed.
>
it wouldn't be cleanned. :)
>
>> +void s5p_dsim_sw_reset(struct dsim_global *dsim)
>> +{
>> + ? ? unsigned int cfg = 0;
>> +
>> + ? ? cfg = DSIM_SWRST;
>> +
>> + ? ? writel(cfg, dsim->reg_base + S5P_DSIM_SWRST);
>> +}
>> +
>> +void s5p_dsim_set_interrupt_mask(struct dsim_global *dsim, unsigned int mode,
>> + ? ? unsigned int mask)
>> +{
>
> bool for mask.
>
ok, it would be modified.
>> + ? ? unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTMSK);
>> +
>> + ? ? if (mask)
>> + ? ? ? ? ? ? reg |= mode;
>> + ? ? else
>> + ? ? ? ? ? ? reg &= ~(mode);
>
> no need for () around mode.
>
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_INTMSK);
>> +}
>> +
>> +void s5p_dsim_init_fifo_pointer(struct dsim_global *dsim, unsigned char cfg)
>> +{
>> + ? ? unsigned int reg;
>> +
>> + ? ? reg = readl(dsim->reg_base + S5P_DSIM_FIFOCTRL);
>> +
>> + ? ? writel(reg & ~(cfg), dsim->reg_base + S5P_DSIM_FIFOCTRL);
>> + ? ? mdelay(10);
>> + ? ? reg |= cfg;
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_FIFOCTRL);
>> +}
>> +
>> +/*
>> + * this function set PLL P, M and S value in D-PHY
>> + */
>> +void s5p_dsim_set_phy_tunning(struct dsim_global *dsim, unsigned int value)
>> +{
>> + ? ? writel(DSIM_AFC_CTL(value), dsim->reg_base + S5P_DSIM_PHYACCHR);
>> +}
>> +
>> +void s5p_dsim_set_main_disp_resol(struct dsim_global *dsim,
>> + ? ? unsigned short vert_resol, unsigned short hori_resol)
>> +{
>> + ? ? unsigned int reg;
>> +
>> + ? ? /* standby should be set after configuration so set to not ready*/
>> + ? ? reg = (readl(dsim->reg_base + S5P_DSIM_MDRESOL)) &
>> + ? ? ? ? ? ? ~(DSIM_MAIN_STAND_BY);
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
>> +
>> + ? ? reg &= ~(0x7ff << 16) & ~(0x7ff << 0);
>> + ? ? reg |= DSIM_MAIN_VRESOL(vert_resol) | DSIM_MAIN_HRESOL(hori_resol);
>> +
>> + ? ? reg |= DSIM_MAIN_STAND_BY;
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
>> +}
>> +
>> +void s5p_dsim_set_main_disp_vporch(struct dsim_global *dsim,
>> + ? ? unsigned int cmd_allow, unsigned int vfront, unsigned int vback)
>> +{
>> + ? ? unsigned int reg;
>> +
>> + ? ? reg = (readl(dsim->reg_base + S5P_DSIM_MVPORCH)) &
>> + ? ? ? ? ? ? ~(DSIM_CMD_ALLOW_MASK) & ~(DSIM_STABLE_VFP_MASK) &
>> + ? ? ? ? ? ? ~(DSIM_MAIN_VBP_MASK);
>> +
>> + ? ? reg |= ((cmd_allow & 0xf) << DSIM_CMD_ALLOW_SHIFT) |
>> + ? ? ? ? ? ? ((vfront & 0x7ff) << DSIM_STABLE_VFP_SHIFT) |
>> + ? ? ? ? ? ? ((vback & 0x7ff) << DSIM_MAIN_VBP_SHIFT);
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_MVPORCH);
>> +}
>> +
>> +void s5p_dsim_set_main_disp_hporch(struct dsim_global *dsim,
>> + ? ? unsigned short front, unsigned short back)
>> +{
>> + ? ? unsigned int reg;
>> +
>> + ? ? reg = (readl(dsim->reg_base + S5P_DSIM_MHPORCH)) &
>> + ? ? ? ? ? ? ~(DSIM_MAIN_HFP_MASK) & ~(DSIM_MAIN_HBP_MASK);
>> +
>> + ? ? reg |= (front << DSIM_MAIN_HFP_SHIFT) | (back << DSIM_MAIN_HBP_SHIFT);
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_MHPORCH);
>> +}
>> +
>> +void s5p_dsim_set_main_disp_sync_area(struct dsim_global *dsim,
>> + ? ? unsigned short vert, unsigned short hori)
>> +{
>> + ? ? unsigned int reg;
>> +
>> + ? ? reg = (readl(dsim->reg_base + S5P_DSIM_MSYNC)) &
>> + ? ? ? ? ? ? ~(DSIM_MAIN_VSA_MASK) & ~(DSIM_MAIN_HSA_MASK);
>> +
>> + ? ? reg |= ((vert & 0x3ff) << DSIM_MAIN_VSA_SHIFT) |
>> + ? ? ? ? ? ? (hori << DSIM_MAIN_HSA_SHIFT);
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_MSYNC);
>> +}
>> +
>> +void s5p_dsim_set_sub_disp_resol(struct dsim_global *dsim,
>> + ? ? unsigned short vert, unsigned short hori)
>> +{
>> + ? ? unsigned int reg;
>> +
>> + ? ? reg = (readl(dsim->reg_base + S5P_DSIM_SDRESOL)) &
>> + ? ? ? ? ? ? ~(DSIM_SUB_STANDY_MASK);
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
>> +
>> + ? ? reg &= ~(DSIM_SUB_VRESOL_MASK) | ~(DSIM_SUB_HRESOL_MASK);
>> + ? ? reg |= ((vert & 0x7ff) << DSIM_SUB_VRESOL_SHIFT) |
>> + ? ? ? ? ? ? ((hori & 0x7ff) << DSIM_SUB_HRESOL_SHIFT);
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
>> +
>> + ? ? reg |= (1 << DSIM_SUB_STANDY_SHIFT);
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
>> +}
>> +
>> +void s5p_dsim_init_config(struct dsim_global *dsim,
>> + ? ? struct dsim_lcd_config *main_lcd_info,
>> + ? ? struct dsim_lcd_config *sub_lcd_info, struct dsim_config *dsim_info)
>> +{
>> + ? ? unsigned int cfg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
>> + ? ? ? ? ? ? ~(1 << 28) & ~(0x1f << 20) & ~(0x3 << 5);
>> +
>> + ? ? cfg = ? (dsim_info->auto_flush << 29) |
>> + ? ? ? ? ? ? (dsim_info->eot_disable << 28) |
>> + ? ? ? ? ? ? (dsim_info->auto_vertical_cnt << DSIM_AUTO_MODE_SHIFT) |
>> + ? ? ? ? ? ? (dsim_info->hse << DSIM_HSE_MODE_SHIFT) |
>> + ? ? ? ? ? ? (dsim_info->hfp << DSIM_HFP_MODE_SHIFT) |
>> + ? ? ? ? ? ? (dsim_info->hbp << DSIM_HBP_MODE_SHIFT) |
>> + ? ? ? ? ? ? (dsim_info->hsa << DSIM_HSA_MODE_SHIFT) |
>> + ? ? ? ? ? ? (dsim_info->e_no_data_lane << DSIM_NUM_OF_DATALANE_SHIFT);
>> +
>> + ? ? writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
>> +}
>> +
>> +void s5p_dsim_display_config(struct dsim_global *dsim,
>> + ? ? struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
>> +{
>> + ? ? u32 reg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
>> + ? ? ? ? ? ? ~(0x3 << 26) & ~(1 << 25) & ~(0x3 << 18) & ~(0x7 << 12) &
>> + ? ? ? ? ? ? ~(0x3 << 16) & ~(0x7 << 8);
>> +
>> + ? ? if (main_lcd->e_interface == DSIM_VIDEO)
>> + ? ? ? ? ? ? reg |= (1 << 25);
>> + ? ? else if (main_lcd->e_interface == DSIM_COMMAND)
>> + ? ? ? ? ? ? reg &= ~(1 << 25);
>> + ? ? else {
>> + ? ? ? ? ? ? dev_err(dsim->dev, "this ddi is not MIPI interface.\n");
>> + ? ? ? ? ? ? return;
>> + ? ? }
>> +
>> + ? ? /* main lcd */
>> + ? ? reg |= ((u8) (main_lcd->parameter[DSI_VIDEO_MODE_SEL]) & 0x3) << 26 |
>> + ? ? ? ? ? ? ((u8) (main_lcd->parameter[DSI_VIRTUAL_CH_ID]) & 0x3) << 18 |
>> + ? ? ? ? ? ? ((u8) (main_lcd->parameter[DSI_FORMAT]) & 0x7) << 12;
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
>> +}
>> +
>> +void s5p_dsim_enable_lane(struct dsim_global *dsim, unsigned char lane,
>> + ? ? unsigned char enable)
>> +{
>> + ? ? unsigned int reg;
>> +
>> + ? ? reg = readl(dsim->reg_base + S5P_DSIM_CONFIG);
>> +
>> + ? ? if (lane == DSIM_LANE_CLOCK) {
>> + ? ? ? ? ? ? if (enable)
>> + ? ? ? ? ? ? ? ? ? ? reg |= (1 << 0);
>> + ? ? ? ? ? ? else
>> + ? ? ? ? ? ? ? ? ? ? reg &= ~(1 << 0);
>> + ? ? } else {
>> + ? ? ? ? ? ? if (enable)
>> + ? ? ? ? ? ? ? ? ? ? reg |= (lane << 1);
>> + ? ? ? ? ? ? else
>> + ? ? ? ? ? ? ? ? ? ? reg &= ~(lane << 1);
>> + ? ? }
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
>> +}
>> +
>> +
>> +void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
>> + ? ? unsigned char count)
>> +{
>> + ? ? unsigned int cfg = 0;
>> +
>> + ? ? /* get the data lane number. */
>> + ? ? cfg = DSIM_NUM_OF_DATA_LANE(count);
>> +
>> + ? ? writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
>> +}
>> +
>> +void s5p_dsim_enable_afc(struct dsim_global *dsim, unsigned char enable,
>> + ? ? unsigned char afc_code)
>> +{
>> + ? ? unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PHYACCHR);
>> +
>> + ? ? if (enable) {
>> + ? ? ? ? ? ? reg |= (1 << 14);
>> + ? ? ? ? ? ? reg &= ~(0x7 << 5);
>> + ? ? ? ? ? ? reg |= (afc_code & 0x7) << 5;
>> + ? ? } else
>> + ? ? ? ? ? ? reg &= ~(1 << 14);
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_PHYACCHR);
>> +}
>> +
>> +void s5p_dsim_enable_pll_bypass(struct dsim_global *dsim,
>> + ? ? unsigned char enable)
>
> unsigned int enable.
>
also.
>> +{
>> + ? ? unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
>> + ? ? ? ? ? ? ~(DSIM_PLL_BYPASS_EXTERNAL);
>> +
>> + ? ? reg |= enable << DSIM_PLL_BYPASS_SHIFT;
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
>> +}
>> +
>> +void s5p_dsim_set_pll_pms(struct dsim_global *dsim, unsigned char p,
>> + ? ? unsigned short m, unsigned short s)
>> +{
>> + ? ? unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PLLCTRL);
>> +
>> + ? ? reg |= ((p & 0x3f) << 13) | ((m & 0x1ff) << 4) | ((s & 0x7) << 1);
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
>> +}
>> +
>> +void s5p_dsim_pll_freq_band(struct dsim_global *dsim, unsigned char freq_band)
>> +{
>> + ? ? unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
>> + ? ? ? ? ? ? ~(0x1f << DSIM_FREQ_BAND_SHIFT);
>> +
>> + ? ? reg |= ((freq_band & 0x1f) << DSIM_FREQ_BAND_SHIFT);
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
>> +}
>> +
>> +void s5p_dsim_pll_freq(struct dsim_global *dsim, unsigned char pre_divider,
>> + ? ? unsigned short main_divider, unsigned char scaler)
>> +{
>> + ? ? unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
>> + ? ? ? ? ? ? ~(0x7ffff << 1);
>> +
>> + ? ? reg |= (pre_divider & 0x3f) << 13 | (main_divider & 0x1ff) << 4 |
>> + ? ? ? ? ? ? (scaler & 0x7) << 1;
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
>> +}
>> +
>> +void s5p_dsim_pll_stable_time(struct dsim_global *dsim,
>> + ? ? unsigned int lock_time)
>> +{
>> + ? ? writel(lock_time, dsim->reg_base + S5P_DSIM_PLLTMR);
>> +}
>> +
>> +void s5p_dsim_enable_pll(struct dsim_global *dsim, unsigned char enable)
>> +{
>> + ? ? unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
>> + ? ? ? ? ? ? ~(0x1 << DSIM_PLL_EN_SHIFT);
>> +
>> + ? ? reg |= ((enable & 0x1) << DSIM_PLL_EN_SHIFT);
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
>> +}
>> +
>> +void s5p_dsim_set_byte_clock_src(struct dsim_global *dsim, unsigned char src)
>> +{
>> + ? ? unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
>> + ? ? ? ? ? ? ~(0x3 << DSIM_BYTE_CLK_SRC_SHIFT);
>> +
>> + ? ? reg |= ((unsigned int) src) << DSIM_BYTE_CLK_SRC_SHIFT;
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
>> +}
>> +
>> +void s5p_dsim_enable_byte_clock(struct dsim_global *dsim,
>> + ? ? unsigned char enable)
>> +{
>> + ? ? unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
>> + ? ? ? ? ? ? ~(1 << DSIM_BYTE_CLKEN_SHIFT);
>> +
>> + ? ? reg |= enable << DSIM_BYTE_CLKEN_SHIFT;
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
>> +}
>> +
>> +void s5p_dsim_set_esc_clk_prs(struct dsim_global *dsim, unsigned char enable,
>> + ? ? unsigned short prs_val)
>> +{
>> + ? ? unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
>> + ? ? ? ? ? ? ~(1 << DSIM_ESC_CLKEN_SHIFT) & ~(0xffff);
>> +
>> + ? ? reg |= enable << DSIM_ESC_CLKEN_SHIFT;
>> + ? ? if (enable)
>> + ? ? ? ? ? ? reg |= prs_val;
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
>> +}
>> +
>> +void s5p_dsim_enable_esc_clk_on_lane(struct dsim_global *dsim,
>> + ? ? unsigned char lane_sel, unsigned char enable)
>> +{
>> + ? ? unsigned int reg = readl(dsim->reg_base + S5P_DSIM_CLKCTRL);
>> +
>> + ? ? if (enable) {
>> + ? ? ? ? ? ? if (lane_sel & DSIM_LANE_CLOCK)
>> + ? ? ? ? ? ? ? ? ? ? reg |= 1 << DSIM_LANE_ESC_CLKEN_SHIFT;
>> + ? ? ? ? ? ? if (lane_sel & DSIM_LANE_DATA0)
>> + ? ? ? ? ? ? ? ? ? ? reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1);
>> + ? ? ? ? ? ? if (lane_sel & DSIM_LANE_DATA1)
>> + ? ? ? ? ? ? ? ? ? ? reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2);
>> + ? ? ? ? ? ? if (lane_sel & DSIM_LANE_DATA2)
>> + ? ? ? ? ? ? ? ? ? ? reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3);
>> + ? ? ? ? ? ? if (lane_sel & DSIM_LANE_DATA2)
>> + ? ? ? ? ? ? ? ? ? ? reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4);
>> + ? ? } else {
>> + ? ? ? ? ? ? if (lane_sel & DSIM_LANE_CLOCK)
>> + ? ? ? ? ? ? ? ? ? ? reg &= ~(1 << DSIM_LANE_ESC_CLKEN_SHIFT);
>> + ? ? ? ? ? ? if (lane_sel & DSIM_LANE_DATA0)
>> + ? ? ? ? ? ? ? ? ? ? reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1));
>> + ? ? ? ? ? ? if (lane_sel & DSIM_LANE_DATA1)
>> + ? ? ? ? ? ? ? ? ? ? reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2));
>> + ? ? ? ? ? ? if (lane_sel & DSIM_LANE_DATA2)
>> + ? ? ? ? ? ? ? ? ? ? reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3));
>> + ? ? ? ? ? ? if (lane_sel & DSIM_LANE_DATA2)
>> + ? ? ? ? ? ? ? ? ? ? reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4));
>> + ? ? }
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
>> +}
>> +
>
>> +
>
>> +void s5p_dsim_clear_interrupt(struct dsim_global *dsim, unsigned int int_src)
>> +{
>> + ? ? unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
>> +
>> + ? ? reg |= int_src;
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_INTSRC);
>> +}
>>
>
>
>> +unsigned char s5p_dsim_is_pll_stable(struct dsim_global *dsim)
>> +{
>> + ? ? return (unsigned char) ((readl(dsim->reg_base + S5P_DSIM_STATUS) &
>> + ? ? ? ? ? ? ? ? (1 << 31)) >> 31);
>> +}
>
> do you really need to be casting to an unsigned char?
>
> sure the code would be more efficient if you simply return an unsigned
> int.
>
> Either >> 31 the result (hint, it'll be the only bit left) or use
> the & (1 << 31) and return the result (non-zero generally regarded as true).
>
ok, code cleanup was less.
More will be cleaner.
>> +
>> +unsigned int s5p_dsim_get_fifo_state(struct dsim_global *dsim)
>> +{
>> + ? ? unsigned int ret = 0;
>> +
>> + ? ? ret = (readl(dsim->reg_base + S5P_DSIM_FIFOCTRL) & ~(0x1f));
>> +
>> + ? ? return ret;
>> +}
>
> again, no need for intermediate variable and certianly no need to init
> it before assinging it.
>
also.
>> +
>> +void s5p_dsim_wr_tx_header(struct dsim_global *dsim,
>> + ? ? unsigned char di, unsigned char data0, unsigned char data1)
>> +{
>> + ? ? unsigned int reg = (data1 << 16) | (data0 << 8) | ((di & 0x3f) << 0);
>> +
>> + ? ? writel(reg, dsim->reg_base + S5P_DSIM_PKTHDR);
>> +}
>> +
>> +unsigned int _s5p_dsim_get_frame_done_status(struct dsim_global *dsim)
>> +{
>> + ? ? unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
>> +
>> + ? ? return (reg & INTSRC_FRAME_DONE) ? 1 : 0;
>> +}
>> +
>> +void _s5p_dsim_clear_frame_done(struct dsim_global *dsim)
>> +{
>> + ? ? unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
>> +
>> + ? ? writel(reg | INTSRC_FRAME_DONE, dsim->reg_base +
>> + ? ? ? ? ? ? S5P_DSIM_INTSRC);
>> +}
>> +
>> +void s5p_dsim_wr_tx_data(struct dsim_global *dsim, unsigned int tx_data)
>> +{
>> + ? ? writel(tx_data, dsim->reg_base + S5P_DSIM_PAYLOAD);
>> +}
>> diff --git a/drivers/video/s5p_dsim_lowlevel.h b/drivers/video/s5p_dsim_lowlevel.h
>> new file mode 100644
>> index 0000000..ff950ba
>> --- /dev/null
>> +++ b/drivers/video/s5p_dsim_lowlevel.h
>> @@ -0,0 +1,101 @@
>> +/* linux/drivers/video/samsung/s5p_dsim_lowlevel.h
>> + *
>> + * Header file for Samsung MIPI-DSIM lowlevel driver.
>> + *
>> + * Copyright (c) 2009 Samsung Electronics
>> + * InKi Dae <inki.dae@samsung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> +*/
>> +
>> +#ifndef _S5P_DSIM_LOWLEVEL_H
>> +#define _S5P_DSIM_LOWLEVEL_H
>> +
>> +struct dsim_global;
>> +
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [PATCH 2/2] S5PV210: Add MIPI-DSI Driver.
2010-07-02 8:51 ` InKi Dae
@ 2010-07-03 1:44 ` Jaya Kumar
-1 siblings, 0 replies; 30+ messages in thread
From: Jaya Kumar @ 2010-07-03 1:44 UTC (permalink / raw)
To: linux-arm-kernel
Hi InKi,
2010/7/2 InKi Dae <inki.dae@samsung.com>:
> this patch addes MIPI-DSI Driver.
>
> to use this driver, some structures below should be added to machine
> specific file.
A quick question. I'm having difficulty understanding the larger
picture here. There's the MIPI-DSI host controller driver (which I
think is what this patch is) which is specific to this platform. Then
there's the MIPI-DSI LCD panels which are supposed to be fully
platform independent, right? and would thus ideally have a platform
independent MIPI-DSI client driver?
Would I be correct in saying this patch below does not provide such an
abstraction and so structures that would be necessary for such a
display driver (eg: struct mipi_lcd_driver ) appear to be declared in
the samsung platform specific files. In other words, if we wanted to
support a particular MIPI-DSI LCD panel, it would require a client
driver that is tied intimately to this platform?
Could you point us to an example mipi-dsi client driver that is using
the patch you provided? ie: something that is calling
s5p_dsim_register_lcd_driver. That would help us understand the
abstraction that is being made here.
Thanks,
jaya
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH 2/2] S5PV210: Add MIPI-DSI Driver.
@ 2010-07-03 1:44 ` Jaya Kumar
0 siblings, 0 replies; 30+ messages in thread
From: Jaya Kumar @ 2010-07-03 1:44 UTC (permalink / raw)
To: linux-arm-kernel
Hi InKi,
2010/7/2 InKi Dae <inki.dae@samsung.com>:
> this patch addes MIPI-DSI Driver.
>
> to use this driver, some structures below should be added to machine
> specific file.
A quick question. I'm having difficulty understanding the larger
picture here. There's the MIPI-DSI host controller driver (which I
think is what this patch is) which is specific to this platform. Then
there's the MIPI-DSI LCD panels which are supposed to be fully
platform independent, right? and would thus ideally have a platform
independent MIPI-DSI client driver?
Would I be correct in saying this patch below does not provide such an
abstraction and so structures that would be necessary for such a
display driver (eg: struct mipi_lcd_driver ) appear to be declared in
the samsung platform specific files. In other words, if we wanted to
support a particular MIPI-DSI LCD panel, it would require a client
driver that is tied intimately to this platform?
Could you point us to an example mipi-dsi client driver that is using
the patch you provided? ie: something that is calling
s5p_dsim_register_lcd_driver. That would help us understand the
abstraction that is being made here.
Thanks,
jaya
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [PATCH 2/2] S5PV210: Add MIPI-DSI Driver.
2010-07-03 1:44 ` Jaya Kumar
@ 2010-07-03 5:21 ` InKi Dae
-1 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-03 5:21 UTC (permalink / raw)
To: linux-arm-kernel
Hi, Jaya.
below is my answer.
2010/7/3 Jaya Kumar <jayakumar.lkml@gmail.com>:
> Hi InKi,
>
> 2010/7/2 InKi Dae <inki.dae@samsung.com>:
>> this patch addes MIPI-DSI Driver.
>>
>> to use this driver, some structures below should be added to machine
>> specific file.
>
> A quick question. I'm having difficulty understanding the larger
> picture here. There's the MIPI-DSI host controller driver (which I
> think is what this patch is) which is specific to this platform. Then
> there's the MIPI-DSI LCD panels which are supposed to be fully
> platform independent, right? and would thus ideally have a platform
> independent MIPI-DSI client driver?
>
hmm, is there any mipi-dsi master framework that it can use commonly
in linux kernel? my driver is dependent on platform a little because
lcd panel driver should include two header files.
> Would I be correct in saying this patch below does not provide such an
> abstraction and so structures that would be necessary for such a
> display driver (eg: struct mipi_lcd_driver ) appear to be declared in
> the samsung platform specific files. In other words, if we wanted to
> support a particular MIPI-DSI LCD panel, it would require a client
> driver that is tied intimately to this platform?
>
> Could you point us to an example mipi-dsi client driver that is using
> the patch you provided? ie: something that is calling
> s5p_dsim_register_lcd_driver. That would help us understand the
> abstraction that is being made here.
Ok, below is example code to mipi-dsi based lcd panel driver.
#include <plat/regs-dsim.h>
#include <plat/dsim.h>
static struct mipi_lcd_driver xxx_mipi_driver = {
.name = "xxx",
.init = xxx_init,
.display_on = xxx_displsy_on,
.set_link = xxx_set_link,
.probe = xxx_probe,
.suspend = xxx_suspend,
.resume = xxx_resume,
};
static int xxx_init(void)
{
s5p_dsim_register_lcd_driver(&xxx_mipi_driver);
return 0;
}
static void xxx_exit(void)
{
return;
}
module_init(xxx_init);
module_exit(xxx_exit);
at module_init, xxx_mipi_driver would be registered to mipi master
driver through
s5p_dsim_register_lcd_driver func and when master driver is probed, xxx_probe
would be called by probe func of master driver.
I wonder there is mipi-dsi master driver indenpendent on platform
fully in linux kernel.
if exsiting, I will use it as master driver. of course, the part
dependent on platform
would be implemented using that framework.
Thank you.
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH 2/2] S5PV210: Add MIPI-DSI Driver.
@ 2010-07-03 5:21 ` InKi Dae
0 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-03 5:21 UTC (permalink / raw)
To: linux-arm-kernel
Hi, Jaya.
below is my answer.
2010/7/3 Jaya Kumar <jayakumar.lkml@gmail.com>:
> Hi InKi,
>
> 2010/7/2 InKi Dae <inki.dae@samsung.com>:
>> this patch addes MIPI-DSI Driver.
>>
>> to use this driver, some structures below should be added to machine
>> specific file.
>
> A quick question. I'm having difficulty understanding the larger
> picture here. There's the MIPI-DSI host controller driver (which I
> think is what this patch is) which is specific to this platform. Then
> there's the MIPI-DSI LCD panels which are supposed to be fully
> platform independent, right? and would thus ideally have a platform
> independent MIPI-DSI client driver?
>
hmm, is there any mipi-dsi master framework that it can use commonly
in linux kernel? my driver is dependent on platform a little because
lcd panel driver should include two header files.
> Would I be correct in saying this patch below does not provide such an
> abstraction and so structures that would be necessary for such a
> display driver (eg: struct mipi_lcd_driver ) appear to be declared in
> the samsung platform specific files. In other words, if we wanted to
> support a particular MIPI-DSI LCD panel, it would require a client
> driver that is tied intimately to this platform?
>
> Could you point us to an example mipi-dsi client driver that is using
> the patch you provided? ie: something that is calling
> s5p_dsim_register_lcd_driver. That would help us understand the
> abstraction that is being made here.
Ok, below is example code to mipi-dsi based lcd panel driver.
#include <plat/regs-dsim.h>
#include <plat/dsim.h>
static struct mipi_lcd_driver xxx_mipi_driver = {
.name = "xxx",
.init = xxx_init,
.display_on = xxx_displsy_on,
.set_link = xxx_set_link,
.probe = xxx_probe,
.suspend = xxx_suspend,
.resume = xxx_resume,
};
static int xxx_init(void)
{
s5p_dsim_register_lcd_driver(&xxx_mipi_driver);
return 0;
}
static void xxx_exit(void)
{
return;
}
module_init(xxx_init);
module_exit(xxx_exit);
at module_init, xxx_mipi_driver would be registered to mipi master
driver through
s5p_dsim_register_lcd_driver func and when master driver is probed, xxx_probe
would be called by probe func of master driver.
I wonder there is mipi-dsi master driver indenpendent on platform
fully in linux kernel.
if exsiting, I will use it as master driver. of course, the part
dependent on platform
would be implemented using that framework.
Thank you.
^ permalink raw reply [flat|nested] 30+ messages in thread
* Re: [PATCH 2/2] S5PV210: Add MIPI-DSI Driver.
2010-07-03 5:21 ` InKi Dae
@ 2010-07-03 7:20 ` InKi Dae
-1 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-03 7:20 UTC (permalink / raw)
To: linux-arm-kernel
oops, sorry.
it changed header file name to another.
2010/7/3 InKi Dae <daeinki@gmail.com>:
> Hi, Jaya.
>
> below is my answer.
>
> 2010/7/3 Jaya Kumar <jayakumar.lkml@gmail.com>:
>> Hi InKi,
>>
>> 2010/7/2 InKi Dae <inki.dae@samsung.com>:
>>> this patch addes MIPI-DSI Driver.
>>>
>>> to use this driver, some structures below should be added to machine
>>> specific file.
>>
>> A quick question. I'm having difficulty understanding the larger
>> picture here. There's the MIPI-DSI host controller driver (which I
>> think is what this patch is) which is specific to this platform. Then
>> there's the MIPI-DSI LCD panels which are supposed to be fully
>> platform independent, right? and would thus ideally have a platform
>> independent MIPI-DSI client driver?
>>
>
> hmm, is there any mipi-dsi master framework that it can use commonly
> in linux kernel? my driver is dependent on platform a little because
> lcd panel driver should include two header files.
>
>> Would I be correct in saying this patch below does not provide such an
>> abstraction and so structures that would be necessary for such a
>> display driver (eg: struct mipi_lcd_driver ) appear to be declared in
>> the samsung platform specific files. In other words, if we wanted to
>> support a particular MIPI-DSI LCD panel, it would require a client
>> driver that is tied intimately to this platform?
>>
>> Could you point us to an example mipi-dsi client driver that is using
>> the patch you provided? ie: something that is calling
>> s5p_dsim_register_lcd_driver. That would help us understand the
>> abstraction that is being made here.
>
> Ok, below is example code to mipi-dsi based lcd panel driver.
>
> #include <plat/dsim.h>
> #include <plat/mipi_ddi.h>
>
> static struct mipi_lcd_driver xxx_mipi_driver = {
> .name = "xxx",
> .init = xxx_init,
> .display_on = xxx_displsy_on,
> .set_link = xxx_set_link,
> .probe = xxx_probe,
> .suspend = xxx_suspend,
> .resume = xxx_resume,
> };
>
> static int xxx_init(void)
> {
> s5p_dsim_register_lcd_driver(&xxx_mipi_driver);
> return 0;
> }
>
> static void xxx_exit(void)
> {
> return;
> }
>
> module_init(xxx_init);
> module_exit(xxx_exit);
>
> at module_init, xxx_mipi_driver would be registered to mipi master
> driver through
> s5p_dsim_register_lcd_driver func and when master driver is probed, xxx_probe
> would be called by probe func of master driver.
>
> I wonder there is mipi-dsi master driver indenpendent on platform
> fully in linux kernel.
> if exsiting, I will use it as master driver. of course, the part
> dependent on platform
> would be implemented using that framework.
>
> Thank you.
>
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH 2/2] S5PV210: Add MIPI-DSI Driver.
@ 2010-07-03 7:20 ` InKi Dae
0 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-03 7:20 UTC (permalink / raw)
To: linux-arm-kernel
oops, sorry.
it changed header file name to another.
2010/7/3 InKi Dae <daeinki@gmail.com>:
> Hi, Jaya.
>
> below is my answer.
>
> 2010/7/3 Jaya Kumar <jayakumar.lkml@gmail.com>:
>> Hi InKi,
>>
>> 2010/7/2 InKi Dae <inki.dae@samsung.com>:
>>> this patch addes MIPI-DSI Driver.
>>>
>>> to use this driver, some structures below should be added to machine
>>> specific file.
>>
>> A quick question. I'm having difficulty understanding the larger
>> picture here. There's the MIPI-DSI host controller driver (which I
>> think is what this patch is) which is specific to this platform. Then
>> there's the MIPI-DSI LCD panels which are supposed to be fully
>> platform independent, right? and would thus ideally have a platform
>> independent MIPI-DSI client driver?
>>
>
> hmm, is there any mipi-dsi master framework that it can use commonly
> in linux kernel? my driver is dependent on platform a little because
> lcd panel driver should include two header files.
>
>> Would I be correct in saying this patch below does not provide such an
>> abstraction and so structures that would be necessary for such a
>> display driver (eg: struct mipi_lcd_driver ) appear to be declared in
>> the samsung platform specific files. In other words, if we wanted to
>> support a particular MIPI-DSI LCD panel, it would require a client
>> driver that is tied intimately to this platform?
>>
>> Could you point us to an example mipi-dsi client driver that is using
>> the patch you provided? ie: something that is calling
>> s5p_dsim_register_lcd_driver. That would help us understand the
>> abstraction that is being made here.
>
> Ok, below is example code to mipi-dsi based lcd panel driver.
>
> #include <plat/dsim.h>
> #include <plat/mipi_ddi.h>
>
> static struct mipi_lcd_driver xxx_mipi_driver = {
> ? ? ? ? ? .name ?= "xxx",
> ? ? ? ? ? .init ?= xxx_init,
> ? ? ? ? ? .display_on = xxx_displsy_on,
> ? ? ? ? ? .set_link = xxx_set_link,
> ? ? ? ? ? .probe = xxx_probe,
> ? ? ? ? ? .suspend = xxx_suspend,
> ? ? ? ? ? .resume = xxx_resume,
> };
>
> static int xxx_init(void)
> {
> ? ? ? ? ? s5p_dsim_register_lcd_driver(&xxx_mipi_driver);
> ? ? ? ? ? return 0;
> }
>
> static void xxx_exit(void)
> {
> ? ? ? ? ?return;
> }
>
> module_init(xxx_init);
> module_exit(xxx_exit);
>
> at module_init, xxx_mipi_driver would be registered to mipi master
> driver through
> s5p_dsim_register_lcd_driver func and when master driver is probed, xxx_probe
> would be called by probe func of master driver.
>
> I wonder there is mipi-dsi master driver indenpendent on platform
> fully in linux kernel.
> if exsiting, I will use it as master driver. of course, the part
> dependent on platform
> would be implemented using that framework.
>
> Thank you.
>
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH v1 0/2] ARM: S5PV210: Add MIPI-DSI support.
2010-07-02 8:47 ` InKi Dae
@ 2010-07-03 8:33 ` InKi Dae
-1 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-03 8:33 UTC (permalink / raw)
To: linux-arm-kernel, linux-fbdev-devel, akpm, Ben Dooks, kmpark
Hello all,
This patch is for MIPI-DSI controller based on S5PV210 (or S5PC110).
this version corrects some problems Ben pointed out.
v1 patch includes below contents.
- set callbacks to MIPI Client driver at mipi_ddi_platform_data declaration.
- use MIPI regulator names set at s5p_platform_dsim declaration to get regulators for them.
- use a table to get freq_band value.
- code clean and fix minor bugs.
LCD Panel can use following interfaces,
- RGB or CPU Interface.
- RGB or CPU Interface based on MIPI-DSI.
in case of cell phone device, small size lcd panel(less then 480x800) was ok only rgb or cpu interface not using mipi controller.
but big size panel(bigger then 480x800) needs MIPI-DSI Interface or other hardwares like LVDS to transfer image data to lcd panel fine.
I tested this patch on cpu interface based on MIPI-DSI and also considered RGB interface.
This patch set consists of the following patches,
[PATCH v1 1/2] S5PV210: FB: Add MIPI-DSI and CPU Interface features.
[PATCH v1 2/2] S5PV210: Add MIPI-DSI Driver.
Best regards,
InKi Dae
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH v1 0/2] ARM: S5PV210: Add MIPI-DSI support.
@ 2010-07-03 8:33 ` InKi Dae
0 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-03 8:33 UTC (permalink / raw)
To: linux-arm-kernel
Hello all,
This patch is for MIPI-DSI controller based on S5PV210 (or S5PC110).
this version corrects some problems Ben pointed out.
v1 patch includes below contents.
- set callbacks to MIPI Client driver at mipi_ddi_platform_data declaration.
- use MIPI regulator names set at s5p_platform_dsim declaration to get regulators for them.
- use a table to get freq_band value.
- code clean and fix minor bugs.
LCD Panel can use following interfaces,
- RGB or CPU Interface.
- RGB or CPU Interface based on MIPI-DSI.
in case of cell phone device, small size lcd panel(less then 480x800) was ok only rgb or cpu interface not using mipi controller.
but big size panel(bigger then 480x800) needs MIPI-DSI Interface or other hardwares like LVDS to transfer image data to lcd panel fine.
I tested this patch on cpu interface based on MIPI-DSI and also considered RGB interface.
This patch set consists of the following patches,
[PATCH v1 1/2] S5PV210: FB: Add MIPI-DSI and CPU Interface features.
[PATCH v1 2/2] S5PV210: Add MIPI-DSI Driver.
Best regards,
InKi Dae
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH v1 1/2] S5PV210: FB: Add MIPI-DSI and CPU Interface features.
2010-07-02 8:50 ` InKi Dae
@ 2010-07-03 8:35 ` InKi Dae
-1 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-03 8:35 UTC (permalink / raw)
To: linux-arm-kernel, linux-fbdev-devel, akpm, Ben Dooks, kmpark
[-- Attachment #1.1: Type: text/plain, Size: 9438 bytes --]
this patch adds features for supportting MIPI Interface and CPU mode to
s3c-fb.c
for this, I added following features.
. add struct fb_cmdmode
- this structure would be used for cpu interface.
. add interface_mode to struct s3c_fb_platdata.
- this variable would be used to distinguishe whether CPU or RGB mode.
. add two functions for cpu interface.
- s3c_fb_set_trigger would be used for to send trigger signal to FIMD.
- s3c_fb_is_i80_frame_done would be used to check framedone status.
. add a function for setting timing.
- I added this function because it have to distinguishe interfaces.
(CPU or RGB mode)
. add register definitions for using MIPI-DSI mode.
Signed-off-by: InKi Dae <inki.dae@samsung.com <mailto:p.osciak@samsung.com>>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com
<mailto:kyungmin.park@samsung.com>>
---
diff --git a/arch/arm/plat-samsung/include/plat/fb.h b/arch/arm/plat-samsung/include/plat/fb.h
index 27d3b49..b0204f8 100644
--- a/arch/arm/plat-samsung/include/plat/fb.h
+++ b/arch/arm/plat-samsung/include/plat/fb.h
@@ -22,6 +22,23 @@
*/
#define S3C_FB_MAX_WIN (5)
+enum {
+ FIMD_VIDEO_MODE = 0,
+ FIMD_COMMAND_MODE
+};
+
+struct fb_cmdmode {
+ const char *name; /* optional */
+ u32 refresh; /* optional */
+ u32 xres;
+ u32 yres;
+ u32 pixclock;
+ u32 cs_setup;
+ u32 wr_setup;
+ u32 wr_act;
+ u32 wr_hold;
+};
+
/**
* struct s3c_fb_pd_win - per window setup data
* @win_mode: The display parameters to initialise (not for window 0)
@@ -30,6 +47,7 @@
*/
struct s3c_fb_pd_win {
struct fb_videomode win_mode;
+ struct fb_cmdmode cmd_mode;
unsigned short default_bpp;
unsigned short max_bpp;
@@ -42,6 +60,7 @@ struct s3c_fb_pd_win {
* @setup_gpio: Setup the external GPIO pins to the right state to transfer
* the data from the display system to the connected display
* device.
+ * @interface_mode: cpu mode or rgb mode.
* @vidcon0: The base vidcon0 values to control the panel data format.
* @vidcon1: The base vidcon1 values to control the panel data output.
* @win: The setup data for each hardware window, or NULL for unused.
@@ -57,6 +76,7 @@ struct s3c_fb_platdata {
void (*setup_gpio)(void);
struct s3c_fb_pd_win *win[S3C_FB_MAX_WIN];
+ u32 interface_mode;
u32 vidcon0;
u32 vidcon1;
@@ -91,4 +111,10 @@ extern void s5pc100_fb_gpio_setup_24bpp(void);
*/
extern void s5pv210_fb_gpio_setup_24bpp(void);
+struct fb_info;
+
+extern void s3c_fb_set_trigger(struct fb_info *info);
+
+extern int s3c_fb_is_i80_frame_done(struct fb_info *info);
+
#endif /* __PLAT_S3C_FB_H */
diff --git a/arch/arm/plat-samsung/include/plat/regs-fb-v4.h b/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
index 0f43599..4d5954b 100644
--- a/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
+++ b/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
@@ -135,6 +135,22 @@
#define WPALCON (0x1A0)
+/* For CPU interface. */
+#define TRIGCON (0x1a4)
+#define TRGMODE_I80_ENABLE (1 << 0)
+#define SWTRGCMD_I80_TRIGGER (1 << 1)
+#define SWFRSTATUS_I80 (1 << 2)
+
+#define I80IFCONA0 (0x1b0)
+#define I80IFEN_ENABLE (1 << 0)
+#define RSPOL_HIGH (1 << 2)
+#define LCD_WR_HOLD(x) (((x) & 0xf) << 4)
+#define LCD_WR_ACT(x) (((x) & 0xf) << 8)
+#define LCD_WR_SETUP(x) (((x) & 0xf) << 12)
+#define LCD_CS_SETUP(x) (((x) & 0xf) << 16)
+
+#define I80IFCONB0 (0x1b8)
+
/* Palette control */
/* Note for S5PC100: you can still use those macros on WPALCON (aka WPALCON_L),
* but make sure that WPALCON_H W2PAL-W4PAL entries are zeroed out */
diff --git a/arch/arm/plat-samsung/include/plat/regs-fb.h b/arch/arm/plat-samsung/include/plat/regs-fb.h
index 0ef806e..70342aa 100644
--- a/arch/arm/plat-samsung/include/plat/regs-fb.h
+++ b/arch/arm/plat-samsung/include/plat/regs-fb.h
@@ -38,6 +38,7 @@
#define VIDCON0_VIDOUT_TV (0x1 << 26)
#define VIDCON0_VIDOUT_I80_LDI0 (0x2 << 26)
#define VIDCON0_VIDOUT_I80_LDI1 (0x3 << 26)
+#define VIDCON0_DSI_EN_ENABLE (1 << 30)
#define VIDCON0_L1_DATA_MASK (0x7 << 23)
#define VIDCON0_L1_DATA_SHIFT (23)
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c
index 9682ecc..28d34ef 100644
--- a/drivers/video/s3c-fb.c
+++ b/drivers/video/s3c-fb.c
@@ -255,6 +255,73 @@ static int s3c_fb_align_word(unsigned int bpp, unsigned int pix)
}
/**
+ * s3c_fb_set_trigger - fimd trigger based on cpu interface.
+ */
+void s3c_fb_set_trigger(struct fb_info *info)
+{
+ struct s3c_fb_win *win = info->par;
+ struct s3c_fb *sfb = win->parent;
+ void __iomem *regs = sfb->regs;
+ u32 reg = 0;
+
+ reg = readl(regs + TRIGCON);
+
+ reg |= TRGMODE_I80_ENABLE | SWTRGCMD_I80_TRIGGER;
+
+ writel(reg, regs + TRIGCON);
+}
+
+/**
+ * s3c_fb_is_i80_frame_done - get i80 frame done status.
+ */
+int s3c_fb_is_i80_frame_done(struct fb_info *info)
+{
+ struct s3c_fb_win *win = info->par;
+ struct s3c_fb *sfb = win->parent;
+ void __iomem *regs = sfb->regs;
+ u32 reg = 0;
+
+ reg = readl(regs + TRIGCON);
+
+ return (((reg & SWFRSTATUS_I80) == SWFRSTATUS_I80) ? 1 : 0);
+}
+
+/**
+ * s3c_fb_set_cpu_timing - set cpu timing.
+ */
+static void s3c_fb_set_timing(struct s3c_fb *sfb, struct fb_info *info)
+{
+ struct s3c_fb_win *win = info->par;
+ struct s3c_fb_pd_win *windata = win->windata;
+ struct fb_var_screeninfo *var = &info->var;
+ void __iomem *regs = sfb->regs;
+ u32 reg = 0;
+
+ if (sfb->pdata->interface_mode == FIMD_VIDEO_MODE) {
+ reg = VIDTCON0_VBPD(var->upper_margin - 1) |
+ VIDTCON0_VFPD(var->lower_margin - 1) |
+ VIDTCON0_VSPW(var->vsync_len - 1);
+
+ writel(reg, regs + VIDTCON0);
+
+ reg = VIDTCON1_HBPD(var->left_margin - 1) |
+ VIDTCON1_HFPD(var->right_margin - 1) |
+ VIDTCON1_HSPW(var->hsync_len - 1);
+
+ writel(reg, regs + VIDTCON1);
+ } else if (sfb->pdata->interface_mode == FIMD_COMMAND_MODE) {
+ reg = LCD_CS_SETUP(windata->cmd_mode.cs_setup) |
+ LCD_WR_SETUP(windata->cmd_mode.wr_setup) |
+ LCD_WR_ACT(windata->cmd_mode.wr_act) |
+ LCD_WR_HOLD(windata->cmd_mode.wr_hold) |
+ I80IFEN_ENABLE;
+
+ writel(reg, regs + I80IFCONA0);
+ } else
+ dev_warn(sfb->dev, "wrong interface type.\n");
+}
+
+/**
* s3c_fb_set_par() - framebuffer request to set new framebuffer state.
* @info: The framebuffer to change.
*
@@ -318,17 +385,7 @@ static int s3c_fb_set_par(struct fb_info *info)
data |= VIDCON0_ENVID | VIDCON0_ENVID_F;
writel(data, regs + VIDCON0);
- data = VIDTCON0_VBPD(var->upper_margin - 1) |
- VIDTCON0_VFPD(var->lower_margin - 1) |
- VIDTCON0_VSPW(var->vsync_len - 1);
-
- writel(data, regs + VIDTCON0);
-
- data = VIDTCON1_HBPD(var->left_margin - 1) |
- VIDTCON1_HFPD(var->right_margin - 1) |
- VIDTCON1_HSPW(var->hsync_len - 1);
-
- writel(data, regs + VIDTCON1);
+ s3c_fb_set_timing(sfb, info);
data = VIDTCON2_LINEVAL(var->yres - 1) |
VIDTCON2_HOZVAL(var->xres - 1);
@@ -744,7 +801,8 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
struct s3c_fb_win **res)
{
struct fb_var_screeninfo *var;
- struct fb_videomode *initmode;
+ struct fb_videomode *videomode;
+ struct fb_cmdmode *cmdmode;
struct s3c_fb_pd_win *windata;
struct s3c_fb_win *win;
struct fb_info *fbinfo;
@@ -763,11 +821,20 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
}
windata = sfb->pdata->win[win_no];
- initmode = &windata->win_mode;
WARN_ON(windata->max_bpp == 0);
- WARN_ON(windata->win_mode.xres == 0);
- WARN_ON(windata->win_mode.yres == 0);
+
+ if (sfb->pdata->interface_mode == FIMD_VIDEO_MODE) {
+ WARN_ON(windata->win_mode.xres == 0);
+ WARN_ON(windata->win_mode.yres == 0);
+
+ videomode = &windata->win_mode;
+ } else {
+ WARN_ON(windata->cmd_mode.xres == 0);
+ WARN_ON(windata->cmd_mode.yres == 0);
+
+ cmdmode = &windata->cmd_mode;
+ }
win = fbinfo->par;
var = &fbinfo->var;
@@ -777,18 +844,19 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
win->index = win_no;
win->palette_buffer = (u32 *)(win + 1);
- ret = s3c_fb_alloc_memory(sfb, win);
- if (ret) {
- dev_err(sfb->dev, "failed to allocate display memory\n");
- return ret;
+ /* setup the initial video or cpu mode from the window */
+ if (sfb->pdata->interface_mode == FIMD_VIDEO_MODE)
+ fb_videomode_to_var(&fbinfo->var, videomode);
+ else {
+ var->xres = cmdmode->xres;
+ var->yres = cmdmode->yres;
+ var->xres_virtual = cmdmode->xres;
+ var->yres_virtual = cmdmode->yres;
+ var->xoffset = 0;
+ var->yoffset = 0;
+ var->pixclock = cmdmode->pixclock;
}
- /* setup the r/b/g positions for the window's palette */
- s3c_fb_init_palette(win_no, &win->palette);
-
- /* setup the initial video mode from the window */
- fb_videomode_to_var(&fbinfo->var, initmode);
-
fbinfo->fix.type = FB_TYPE_PACKED_PIXELS;
fbinfo->fix.accel = FB_ACCEL_NONE;
fbinfo->var.activate = FB_ACTIVATE_NOW;
@@ -798,6 +866,15 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
fbinfo->flags = FBINFO_FLAG_DEFAULT;
fbinfo->pseudo_palette = &win->pseudo_palette;
+ ret = s3c_fb_alloc_memory(sfb, win);
+ if (ret) {
+ dev_err(sfb->dev, "failed to allocate display memory\n");
+ return ret;
+ }
+
+ /* setup the r/b/g positions for the window's palette */
+ s3c_fb_init_palette(win_no, &win->palette);
+
/* prepare to actually start the framebuffer */
ret = s3c_fb_check_var(&fbinfo->var, fbinfo);
[-- Attachment #1.2: Type: text/html, Size: 10215 bytes --]
[-- Attachment #2: Type: text/plain, Size: 176 bytes --]
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 30+ messages in thread
* [PATCH v1 1/2] S5PV210: FB: Add MIPI-DSI and CPU Interface features.
@ 2010-07-03 8:35 ` InKi Dae
0 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-03 8:35 UTC (permalink / raw)
To: linux-arm-kernel
this patch adds features for supportting MIPI Interface and CPU mode to
s3c-fb.c
for this, I added following features.
. add struct fb_cmdmode
- this structure would be used for cpu interface.
. add interface_mode to struct s3c_fb_platdata.
- this variable would be used to distinguishe whether CPU or RGB mode.
. add two functions for cpu interface.
- s3c_fb_set_trigger would be used for to send trigger signal to FIMD.
- s3c_fb_is_i80_frame_done would be used to check framedone status.
. add a function for setting timing.
- I added this function because it have to distinguishe interfaces.
(CPU or RGB mode)
. add register definitions for using MIPI-DSI mode.
Signed-off-by: InKi Dae <inki.dae at samsung.com <mailto:p.osciak@samsung.com>>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com
<mailto:kyungmin.park@samsung.com>>
---
diff --git a/arch/arm/plat-samsung/include/plat/fb.h b/arch/arm/plat-samsung/include/plat/fb.h
index 27d3b49..b0204f8 100644
--- a/arch/arm/plat-samsung/include/plat/fb.h
+++ b/arch/arm/plat-samsung/include/plat/fb.h
@@ -22,6 +22,23 @@
*/
#define S3C_FB_MAX_WIN (5)
+enum {
+ FIMD_VIDEO_MODE = 0,
+ FIMD_COMMAND_MODE
+};
+
+struct fb_cmdmode {
+ const char *name; /* optional */
+ u32 refresh; /* optional */
+ u32 xres;
+ u32 yres;
+ u32 pixclock;
+ u32 cs_setup;
+ u32 wr_setup;
+ u32 wr_act;
+ u32 wr_hold;
+};
+
/**
* struct s3c_fb_pd_win - per window setup data
* @win_mode: The display parameters to initialise (not for window 0)
@@ -30,6 +47,7 @@
*/
struct s3c_fb_pd_win {
struct fb_videomode win_mode;
+ struct fb_cmdmode cmd_mode;
unsigned short default_bpp;
unsigned short max_bpp;
@@ -42,6 +60,7 @@ struct s3c_fb_pd_win {
* @setup_gpio: Setup the external GPIO pins to the right state to transfer
* the data from the display system to the connected display
* device.
+ * @interface_mode: cpu mode or rgb mode.
* @vidcon0: The base vidcon0 values to control the panel data format.
* @vidcon1: The base vidcon1 values to control the panel data output.
* @win: The setup data for each hardware window, or NULL for unused.
@@ -57,6 +76,7 @@ struct s3c_fb_platdata {
void (*setup_gpio)(void);
struct s3c_fb_pd_win *win[S3C_FB_MAX_WIN];
+ u32 interface_mode;
u32 vidcon0;
u32 vidcon1;
@@ -91,4 +111,10 @@ extern void s5pc100_fb_gpio_setup_24bpp(void);
*/
extern void s5pv210_fb_gpio_setup_24bpp(void);
+struct fb_info;
+
+extern void s3c_fb_set_trigger(struct fb_info *info);
+
+extern int s3c_fb_is_i80_frame_done(struct fb_info *info);
+
#endif /* __PLAT_S3C_FB_H */
diff --git a/arch/arm/plat-samsung/include/plat/regs-fb-v4.h b/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
index 0f43599..4d5954b 100644
--- a/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
+++ b/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
@@ -135,6 +135,22 @@
#define WPALCON (0x1A0)
+/* For CPU interface. */
+#define TRIGCON (0x1a4)
+#define TRGMODE_I80_ENABLE (1 << 0)
+#define SWTRGCMD_I80_TRIGGER (1 << 1)
+#define SWFRSTATUS_I80 (1 << 2)
+
+#define I80IFCONA0 (0x1b0)
+#define I80IFEN_ENABLE (1 << 0)
+#define RSPOL_HIGH (1 << 2)
+#define LCD_WR_HOLD(x) (((x) & 0xf) << 4)
+#define LCD_WR_ACT(x) (((x) & 0xf) << 8)
+#define LCD_WR_SETUP(x) (((x) & 0xf) << 12)
+#define LCD_CS_SETUP(x) (((x) & 0xf) << 16)
+
+#define I80IFCONB0 (0x1b8)
+
/* Palette control */
/* Note for S5PC100: you can still use those macros on WPALCON (aka WPALCON_L),
* but make sure that WPALCON_H W2PAL-W4PAL entries are zeroed out */
diff --git a/arch/arm/plat-samsung/include/plat/regs-fb.h b/arch/arm/plat-samsung/include/plat/regs-fb.h
index 0ef806e..70342aa 100644
--- a/arch/arm/plat-samsung/include/plat/regs-fb.h
+++ b/arch/arm/plat-samsung/include/plat/regs-fb.h
@@ -38,6 +38,7 @@
#define VIDCON0_VIDOUT_TV (0x1 << 26)
#define VIDCON0_VIDOUT_I80_LDI0 (0x2 << 26)
#define VIDCON0_VIDOUT_I80_LDI1 (0x3 << 26)
+#define VIDCON0_DSI_EN_ENABLE (1 << 30)
#define VIDCON0_L1_DATA_MASK (0x7 << 23)
#define VIDCON0_L1_DATA_SHIFT (23)
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c
index 9682ecc..28d34ef 100644
--- a/drivers/video/s3c-fb.c
+++ b/drivers/video/s3c-fb.c
@@ -255,6 +255,73 @@ static int s3c_fb_align_word(unsigned int bpp, unsigned int pix)
}
/**
+ * s3c_fb_set_trigger - fimd trigger based on cpu interface.
+ */
+void s3c_fb_set_trigger(struct fb_info *info)
+{
+ struct s3c_fb_win *win = info->par;
+ struct s3c_fb *sfb = win->parent;
+ void __iomem *regs = sfb->regs;
+ u32 reg = 0;
+
+ reg = readl(regs + TRIGCON);
+
+ reg |= TRGMODE_I80_ENABLE | SWTRGCMD_I80_TRIGGER;
+
+ writel(reg, regs + TRIGCON);
+}
+
+/**
+ * s3c_fb_is_i80_frame_done - get i80 frame done status.
+ */
+int s3c_fb_is_i80_frame_done(struct fb_info *info)
+{
+ struct s3c_fb_win *win = info->par;
+ struct s3c_fb *sfb = win->parent;
+ void __iomem *regs = sfb->regs;
+ u32 reg = 0;
+
+ reg = readl(regs + TRIGCON);
+
+ return (((reg & SWFRSTATUS_I80) == SWFRSTATUS_I80) ? 1 : 0);
+}
+
+/**
+ * s3c_fb_set_cpu_timing - set cpu timing.
+ */
+static void s3c_fb_set_timing(struct s3c_fb *sfb, struct fb_info *info)
+{
+ struct s3c_fb_win *win = info->par;
+ struct s3c_fb_pd_win *windata = win->windata;
+ struct fb_var_screeninfo *var = &info->var;
+ void __iomem *regs = sfb->regs;
+ u32 reg = 0;
+
+ if (sfb->pdata->interface_mode == FIMD_VIDEO_MODE) {
+ reg = VIDTCON0_VBPD(var->upper_margin - 1) |
+ VIDTCON0_VFPD(var->lower_margin - 1) |
+ VIDTCON0_VSPW(var->vsync_len - 1);
+
+ writel(reg, regs + VIDTCON0);
+
+ reg = VIDTCON1_HBPD(var->left_margin - 1) |
+ VIDTCON1_HFPD(var->right_margin - 1) |
+ VIDTCON1_HSPW(var->hsync_len - 1);
+
+ writel(reg, regs + VIDTCON1);
+ } else if (sfb->pdata->interface_mode == FIMD_COMMAND_MODE) {
+ reg = LCD_CS_SETUP(windata->cmd_mode.cs_setup) |
+ LCD_WR_SETUP(windata->cmd_mode.wr_setup) |
+ LCD_WR_ACT(windata->cmd_mode.wr_act) |
+ LCD_WR_HOLD(windata->cmd_mode.wr_hold) |
+ I80IFEN_ENABLE;
+
+ writel(reg, regs + I80IFCONA0);
+ } else
+ dev_warn(sfb->dev, "wrong interface type.\n");
+}
+
+/**
* s3c_fb_set_par() - framebuffer request to set new framebuffer state.
* @info: The framebuffer to change.
*
@@ -318,17 +385,7 @@ static int s3c_fb_set_par(struct fb_info *info)
data |= VIDCON0_ENVID | VIDCON0_ENVID_F;
writel(data, regs + VIDCON0);
- data = VIDTCON0_VBPD(var->upper_margin - 1) |
- VIDTCON0_VFPD(var->lower_margin - 1) |
- VIDTCON0_VSPW(var->vsync_len - 1);
-
- writel(data, regs + VIDTCON0);
-
- data = VIDTCON1_HBPD(var->left_margin - 1) |
- VIDTCON1_HFPD(var->right_margin - 1) |
- VIDTCON1_HSPW(var->hsync_len - 1);
-
- writel(data, regs + VIDTCON1);
+ s3c_fb_set_timing(sfb, info);
data = VIDTCON2_LINEVAL(var->yres - 1) |
VIDTCON2_HOZVAL(var->xres - 1);
@@ -744,7 +801,8 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
struct s3c_fb_win **res)
{
struct fb_var_screeninfo *var;
- struct fb_videomode *initmode;
+ struct fb_videomode *videomode;
+ struct fb_cmdmode *cmdmode;
struct s3c_fb_pd_win *windata;
struct s3c_fb_win *win;
struct fb_info *fbinfo;
@@ -763,11 +821,20 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
}
windata = sfb->pdata->win[win_no];
- initmode = &windata->win_mode;
WARN_ON(windata->max_bpp == 0);
- WARN_ON(windata->win_mode.xres == 0);
- WARN_ON(windata->win_mode.yres == 0);
+
+ if (sfb->pdata->interface_mode == FIMD_VIDEO_MODE) {
+ WARN_ON(windata->win_mode.xres == 0);
+ WARN_ON(windata->win_mode.yres == 0);
+
+ videomode = &windata->win_mode;
+ } else {
+ WARN_ON(windata->cmd_mode.xres == 0);
+ WARN_ON(windata->cmd_mode.yres == 0);
+
+ cmdmode = &windata->cmd_mode;
+ }
win = fbinfo->par;
var = &fbinfo->var;
@@ -777,18 +844,19 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
win->index = win_no;
win->palette_buffer = (u32 *)(win + 1);
- ret = s3c_fb_alloc_memory(sfb, win);
- if (ret) {
- dev_err(sfb->dev, "failed to allocate display memory\n");
- return ret;
+ /* setup the initial video or cpu mode from the window */
+ if (sfb->pdata->interface_mode == FIMD_VIDEO_MODE)
+ fb_videomode_to_var(&fbinfo->var, videomode);
+ else {
+ var->xres = cmdmode->xres;
+ var->yres = cmdmode->yres;
+ var->xres_virtual = cmdmode->xres;
+ var->yres_virtual = cmdmode->yres;
+ var->xoffset = 0;
+ var->yoffset = 0;
+ var->pixclock = cmdmode->pixclock;
}
- /* setup the r/b/g positions for the window's palette */
- s3c_fb_init_palette(win_no, &win->palette);
-
- /* setup the initial video mode from the window */
- fb_videomode_to_var(&fbinfo->var, initmode);
-
fbinfo->fix.type = FB_TYPE_PACKED_PIXELS;
fbinfo->fix.accel = FB_ACCEL_NONE;
fbinfo->var.activate = FB_ACTIVATE_NOW;
@@ -798,6 +866,15 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
fbinfo->flags = FBINFO_FLAG_DEFAULT;
fbinfo->pseudo_palette = &win->pseudo_palette;
+ ret = s3c_fb_alloc_memory(sfb, win);
+ if (ret) {
+ dev_err(sfb->dev, "failed to allocate display memory\n");
+ return ret;
+ }
+
+ /* setup the r/b/g positions for the window's palette */
+ s3c_fb_init_palette(win_no, &win->palette);
+
/* prepare to actually start the framebuffer */
ret = s3c_fb_check_var(&fbinfo->var, fbinfo);
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20100703/7c6e3f4f/attachment-0001.html>
^ permalink raw reply related [flat|nested] 30+ messages in thread
* [PATCH v1 2/2] S5PV210: Add MIPI-DSI Driver.
2010-07-02 8:51 ` InKi Dae
@ 2010-07-03 8:42 ` InKi Dae
-1 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-03 8:42 UTC (permalink / raw)
To: linux-arm-kernel, linux-fbdev-devel, akpm, Ben Dooks, kmpark
[-- Attachment #1.1: Type: text/plain, Size: 90257 bytes --]
this patch addes MIPI-DSI Driver.
to use this driver, some structures below should be added to machine
specific file.
struct dsim_config
- define clock info, data lane count and video mode info for MIPI-DSI
Controller.
struct dsim_lcd_config
- define interface mode, channel ID, Pixel format and so on.
struct s5p_platform_dsim
- define callbacks for initializing D-PHY, MIPI reset and trigger
releated interfaces of s3c-fb.c file.
struct mipi_ddi_platform_data
- define following callbacks.
- a function for transferring and receiving command data to mipi based
lcd panel.
- a function for getting framedone status of mipi-dsi controller.
- a function for clearing framedone interrupt of mipi-dsi controller.
- a function for checking i80 framedone status of display controller.(fimd)
- a function for triggering to display controller.(fimd)
Signed-off-by: InKi Dae <inki.dae@samsung.com <mailto:p.osciak@samsung.com>>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com
<mailto:kyungmin.park@samsung.com>>
---
diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
index 2a25ab4..f716678 100644
--- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
+++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
@@ -162,6 +162,7 @@
/* MIPI */
#define S5P_MIPI_DPHY_EN (3)
+#define S5P_MIPI_M_RESETN (1 << 1)
/* S5P_DAC_CONTROL */
#define S5P_DAC_ENABLE (1)
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index b1d82cc..3cd43f2 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -49,6 +49,9 @@ obj-$(CONFIG_S3C_DEV_RTC) += dev-rtc.o
obj-$(CONFIG_SAMSUNG_DEV_ADC) += dev-adc.o
obj-$(CONFIG_SAMSUNG_DEV_TS) += dev-ts.o
+# Device setup - MIPI-DSI
+obj-$(CONFIG_S5P_MIPI_DSI) += setup-dsim.o
+
# DMA support
obj-$(CONFIG_S3C_DMA) += dma.o
diff --git a/arch/arm/plat-samsung/include/plat/dsim.h b/arch/arm/plat-samsung/include/plat/dsim.h
new file mode 100644
index 0000000..49d8946
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/dsim.h
@@ -0,0 +1,493 @@
+/* linux/arm/arch/mach-s5pc110/include/mach/dsim.h
+ *
+ * Platform data header for Samsung MIPI-DSIM.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _DSIM_H
+#define _DSIM_H
+
+#include <linux/device.h>
+
+/* h/w configuration */
+#define MIPI_FIN 24000000
+#define DSIM_TIMEOUT_MS 5000
+#define DSIM_NO_OF_INTERRUPT 26
+#define DSIM_PM_STABLE_TIME 10
+
+#define DSIM_TRUE 1
+#define DSIM_FALSE 0
+
+#define DSIM_HEADER_FIFO_SZ 16
+
+enum dsim_interface_type {
+ DSIM_COMMAND = 0,
+ DSIM_VIDEO = 1,
+};
+
+enum dsim_state {
+ DSIM_STATE_RESET = 0,
+ DSIM_STATE_INIT = 1,
+ DSIM_STATE_STOP = 2,
+ DSIM_STATE_HSCLKEN = 3,
+ DSIM_STATE_ULPS = 4,
+};
+
+enum {
+ DSIM_NONE_STATE = 0,
+ DSIM_RESUME_COMPLETE = 1,
+ DSIM_FRAME_DONE = 2,
+};
+
+enum dsim_virtual_ch_no {
+ DSIM_VIRTUAL_CH_0 = 0,
+ DSIM_VIRTUAL_CH_1 = 1,
+ DSIM_VIRTUAL_CH_2 = 2,
+ DSIM_VIRTUAL_CH_3 = 3,
+};
+
+enum dsim_video_mode_type {
+ DSIM_NON_BURST_SYNC_EVENT = 0,
+ DSIM_NON_BURST_SYNC_PULSE = 2,
+ DSIM_BURST = 3,
+ DSIM_NON_VIDEO_MODE = 4,
+};
+
+enum dsim_fifo_state {
+ DSIM_RX_DATA_FULL = (1 << 25),
+ DSIM_RX_DATA_EMPTY = (1 << 24),
+ SFR_HEADER_FULL = (1 << 23),
+ SFR_HEADER_EMPTY = (1 << 22),
+ SFR_PAYLOAD_FULL = (1 << 21),
+ SFR_PAYLOAD_EMPTY = (1 << 20),
+ I80_HEADER_FULL = (1 << 19),
+ I80_HEADER_EMPTY = (1 << 18),
+ I80_PALOAD_FULL = (1 << 17),
+ I80_PALOAD_EMPTY = (1 << 16),
+ SUB_DISP_HEADER_FULL = (1 << 15),
+ SUB_DISP_HEADER_EMPTY = (1 << 14),
+ SUB_DISP_PAYLOAD_FULL = (1 << 13),
+ SUB_DISP_PAYLOAD_EMPTY = (1 << 12),
+ MAIN_DISP_HEADER_FULL = (1 << 11),
+ MAIN_DISP_HEADER_EMPTY = (1 << 10),
+ MAIN_DISP_PAYLOAD_FULL = (1 << 9),
+ MAIN_DISP_PAYLOAD_EMPTY = (1 << 8),
+};
+
+enum dsim_no_of_data_lane {
+ DSIM_DATA_LANE_1 = 0,
+ DSIM_DATA_LANE_2 = 1,
+ DSIM_DATA_LANE_3 = 2,
+ DSIM_DATA_LANE_4 = 3,
+};
+
+enum dsim_byte_clk_src {
+ DSIM_PLL_OUT_DIV8 = 0,
+ DSIM_EXT_CLK_DIV8 = 1,
+ DSIM_EXT_CLK_BYPASS = 2,
+};
+
+enum dsim_lane {
+ DSIM_LANE_DATA0 = (1 << 0),
+ DSIM_LANE_DATA1 = (1 << 1),
+ DSIM_LANE_DATA2 = (1 << 2),
+ DSIM_LANE_DATA3 = (1 << 3),
+ DSIM_LANE_DATA_ALL = 0xf,
+ DSIM_LANE_CLOCK = (1 << 4),
+ DSIM_LANE_ALL = DSIM_LANE_CLOCK | DSIM_LANE_DATA_ALL,
+};
+
+enum dsim_pixel_format {
+ DSIM_CMD_3BPP = 0,
+ DSIM_CMD_8BPP = 1,
+ DSIM_CMD_12BPP = 2,
+ DSIM_CMD_16BPP = 3,
+ DSIM_VID_16BPP_565 = 4,
+ DSIM_VID_18BPP_666PACKED = 5,
+ DSIM_18BPP_666LOOSELYPACKED = 6,
+ DSIM_24BPP_888 = 7,
+};
+
+enum dsim_lane_state {
+ DSIM_LANE_STATE_HS_READY,
+ DSIM_LANE_STATE_ULPS,
+ DSIM_LANE_STATE_STOP,
+ DSIM_LANE_STATE_LPDT,
+};
+
+enum dsim_transfer {
+ DSIM_TRANSFER_NEITHER = 0,
+ DSIM_TRANSFER_BYCPU = (1 << 7),
+ DSIM_TRANSFER_BYLCDC = (1 << 6),
+ DSIM_TRANSFER_BOTH = (0x3 << 6)
+};
+
+enum dsim_lane_change {
+ DSIM_NO_CHANGE = 0,
+ DSIM_DATA_LANE_CHANGE = 1,
+ DSIM_CLOCK_NALE_CHANGE = 2,
+ DSIM_ALL_LANE_CHANGE = 3,
+};
+
+enum dsim_int_src {
+ DSIM_ALL_OF_INTR = 0xffffffff,
+ DSIM_PLL_STABLE = (1 << 31),
+};
+
+enum dsim_data_id {
+ /* short packet types of packet types for command */
+ GEN_SHORT_WR_NO_PARA = 0x03,
+ GEN_SHORT_WR_1_PARA = 0x13,
+ GEN_SHORT_WR_2_PARA = 0x23,
+ GEN_RD_NO_PARA = 0x04,
+ GEN_RD_1_PARA = 0x14,
+ GEN_RD_2_PARA = 0x24,
+ DCS_WR_NO_PARA = 0x05,
+ DCS_WR_1_PARA = 0x15,
+ DCS_RD_NO_PARA = 0x06,
+ SET_MAX_RTN_PKT_SIZE = 0x37,
+
+ /* long packet types of packet types for command */
+ NULL_PKT = 0x09,
+ BLANKING_PKT = 0x19,
+ GEN_LONG_WR = 0x29,
+ DCS_LONG_WR = 0x39,
+
+ /* short packet types of generic command */
+ CMD_OFF = 0x02,
+ CMD_ON = 0x12,
+ SHUT_DOWN = 0x22,
+ TURN_ON = 0x32,
+
+ /* short packet types for video data */
+ VSYNC_START = 0x01,
+ VSYNC_END = 0x11,
+ HSYNC_START = 0x21,
+ HSYNC_END = 0x31,
+ EOT_PKT = 0x08,
+
+ /* long packet types for video data */
+ RGB565_PACKED = 0x0e,
+ RGB666_PACKED = 0x1e,
+ RGB666_LOOSLY = 0x2e,
+ RGB888_PACKED = 0x3e,
+};
+
+/**
+ * struct dsim_config - interface for configuring mipi-dsi controller.
+ *
+ * @auto_flush: enable or disable Auto flush of MD FIFO using VSYNC pulse.
+ * @eot_disable: enable or disable EoT packet in HS mode.
+ * @auto_vertical_cnt: specifies auto vertical count mode.
+ * in Video mode, the vertical line transition uses line counter
+ * configured by VSA, VBP, and Vertical resolution.
+ * If this bit is set to '1', the line counter does not use VSA and VBP
+ * registers.(in command mode, this variable is ignored)
+ * @hse: set horizontal sync event mode.
+ * In VSYNC pulse and Vporch area, MIPI DSI master transfers only HSYNC
+ * start packet to MIPI DSI slave at MIPI DSI spec1.1r02.
+ * this bit transfers HSYNC end packet in VSYNC pulse and Vporch area
+ * (in mommand mode, this variable is ignored)
+ * @hfp: specifies HFP disable mode.
+ * if this variable is set, DSI master ignores HFP area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @hbp: specifies HBP disable mode.
+ * if this variable is set, DSI master ignores HBP area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @hsa: specifies HSA disable mode.
+ * if this variable is set, DSI master ignores HSA area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @e_no_data_lane: specifies data lane count to be used by Master.
+ * @e_byte_clk: select byte clock source. (it must be DSIM_PLL_OUT_DIV8)
+ * DSIM_EXT_CLK_DIV8 and DSIM_EXT_CLK_BYPASSS are not supported.
+ * @pll_stable_time: specifies the PLL Timer for stability of the ganerated
+ * clock(System clock cycle base)
+ * if the timer value goes to 0x00000000, the clock stable bit of status
+ * and interrupt register is set.
+ * @esc_clk: specifies escape clock frequency for getting the escape clock
+ * prescaler value.
+ * @stop_holding_cnt: specifies the interval value between transmitting
+ * read packet(or write "set_tear_on" command) and BTA request.
+ * after transmitting read packet or write "set_tear_on" command,
+ * BTA requests to D-PHY automatically. this counter value specifies
+ * the interval between them.
+ * @bta_timeout: specifies the timer for BTA.
+ * this register specifies time out from BTA request to change
+ * the direction with respect to Tx escape clock.
+ * @rx_timeout: specifies the timer for LP Rx mode timeout.
+ * this register specifies time out on how long RxValid deasserts,
+ * after RxLpdt asserts with respect to Tx escape clock.
+ * - RxValid specifies Rx data valid indicator.
+ * - RxLpdt specifies an indicator that D-PHY is under RxLpdt mode.
+ * - RxValid and RxLpdt specifies signal from D-PHY.
+ * @e_lane_swap: swaps Dp/Dn channel of Clock lane or Data lane.
+ * if this bit is set, Dp and Dn channel would be swapped each other.
+ */
+struct dsim_config {
+ unsigned char auto_flush;
+ unsigned char eot_disable;
+
+ unsigned char auto_vertical_cnt;
+ unsigned char hse;
+ unsigned char hfp;
+ unsigned char hbp;
+ unsigned char hsa;
+
+ enum dsim_no_of_data_lane e_no_data_lane;
+ enum dsim_byte_clk_src e_byte_clk;
+
+ /*
+ * ===========================================
+ * | P | M | S | MHz |
+ * -------------------------------------------
+ * | 3 | 100 | 3 | 100 |
+ * | 3 | 100 | 2 | 200 |
+ * | 3 | 63 | 1 | 252 |
+ * | 4 | 100 | 1 | 300 |
+ * | 4 | 110 | 1 | 330 |
+ * | 12 | 350 | 1 | 350 |
+ * | 3 | 100 | 1 | 400 |
+ * | 4 | 150 | 1 | 450 |
+ * | 3 | 118 | 1 | 472 |
+ * | 12 | 250 | 0 | 500 |
+ * | 4 | 100 | 0 | 600 |
+ * | 3 | 81 | 0 | 648 |
+ * | 3 | 88 | 0 | 704 |
+ * | 3 | 90 | 0 | 720 |
+ * | 3 | 100 | 0 | 800 |
+ * | 12 | 425 | 0 | 850 |
+ * | 4 | 150 | 0 | 900 |
+ * | 12 | 475 | 0 | 950 |
+ * | 6 | 250 | 0 | 1000 |
+ * -------------------------------------------
+ */
+ unsigned char p;
+ unsigned short m;
+ unsigned char s;
+
+ unsigned int pll_stable_time;
+ unsigned long esc_clk;
+
+ unsigned short stop_holding_cnt;
+ unsigned char bta_timeout;
+ unsigned short rx_timeout;
+ enum dsim_video_mode_type e_lane_swap;
+};
+
+/**
+ * struct dsim_lcd_config - interface for configuring mipi-dsi based lcd panel.
+ *
+ * @e_interface: specifies interface to be used.(CPU or RGB interface)
+ * @parameter[0]: specifies virtual channel number
+ * that main or sub diaplsy uses.
+ * @parameter[1]: specifies pixel stream format for main or sub display.
+ * @parameter[2]: selects Burst mode in Video mode.
+ * in Non-burst mode, RGB data area is filled with RGB data and NULL
+ * packets, according to input bandwidth of RGB interface.
+ * In Burst mode, RGB data area is filled with RGB data only.
+ * @lcd_panel_info: pointer for lcd panel specific structure.
+ * this structure specifies width, height, timing and polarity and so on.
+ * @mipi_ddi_pd: pointer for lcd panel platform data.
+ */
+struct dsim_lcd_config {
+ enum dsim_interface_type e_interface;
+ unsigned int parameter[3];
+
+ void *lcd_panel_info;
+ void *mipi_ddi_pd;
+};
+
+struct dsim_global;
+struct fb_info;
+struct regulator;
+
+/**
+ * struct s5p_platform_dsim - interface to platform data for mipi-dsi driver.
+ *
+ * @clk_name: specifies clock name for mipi-dsi.
+ * @lcd_panel_name: specifies lcd panel name registered to mipi-dsi driver.
+ * lcd panel driver searched would be actived.
+ * @mipi_1_1v_name: specifies mipi 1.1v regulator name.
+ * @mipi_1_8v_name: specifies mipi 1.8v regulator name.
+ * @platfrom_rev: specifies platform revision number.
+ * revision number should become 1.
+ * @dsim_config: pointer of structure for configuring mipi-dsi controller.
+ * @dsim_lcd_info: pointer to structure for configuring
+ * mipi-dsi based lcd panel.
+ * @mipi_power: callback pointer for enabling or disabling mipi power.
+ * @part_reset: callback pointer for reseting mipi phy.
+ * @init_d_phy: callback pointer for enabing d_phy of dsi master.
+ * @get_fb_frame_done: callback pointer for getting frame done status of the
+ * display controller(FIMD).
+ * @trigger: callback pointer for triggering display controller(FIMD)
+ * in case of CPU mode.
+ * @delay_for_stabilization: specifies stable time.
+ * this delay needs when writing data on SFR
+ * after mipi mode became LP mode.
+ */
+struct s5p_platform_dsim {
+ char *clk_name;
+ char *mipi_1_1v_name;
+ char *mipi_1_8v_name;
+ char lcd_panel_name[64];
+ unsigned int platform_rev;
+
+ struct dsim_config *dsim_info;
+ struct dsim_lcd_config *dsim_lcd_info;
+
+ unsigned int delay_for_stabilization;
+
+ int (*mipi_power) (struct dsim_global *dsim,
+ struct regulator *p_mipi_1_1v,
+ struct regulator *p_mipi_1_8v, unsigned int enable);
+ int (*part_reset) (struct dsim_global *dsim);
+ int (*init_d_phy) (struct dsim_global *dsim);
+ int (*get_fb_frame_done) (struct fb_info *info);
+ void (*trigger) (struct fb_info *info);
+};
+
+/**
+ * struct dsim_global - global interface for mipi-dsi driver.
+ *
+ * @dev: driver model representation of the device.
+ * @clock: pointer to MIPI-DSI clock of clock framework.
+ * @irq: interrupt number to MIPI-DSI controller.
+ * @reg_base: base address to memory mapped SRF of MIPI-DSI controller.
+ * (virtual address)
+ * @r_mipi_1_1v: pointer to regulator for MIPI 1.1v power.
+ * @r_mipi_1_8v: pointer to regulator for MIPI 1.8v power.
+ * @pd: pointer to MIPI-DSI driver platform data.
+ * @dsim_lcd_info: pointer to structure for configuring
+ * mipi-dsi based lcd panel.
+ * @lcd_panel_info: pointer for lcd panel specific structure.
+ * this structure specifies width, height, timing and polarity and so on.
+ * @mipi_ddi_pd: pointer for lcd panel platform data.
+ * @mipi_drv: pointer to driver structure for mipi-dsi based lcd panel.
+ * @s3cfb_notif: kernel notifier structure to be registered
+ * by device specific framebuffer driver.
+ * this notifier could be used by fb_blank of device specifiec
+ * framebuffer driver.
+ * @state: specifies status of MIPI-DSI controller.
+ * the status could be RESET, INIT, STOP, HSCLKEN and ULPS.
+ * @data_lane: specifiec enabled data lane number.
+ * this variable would be set by driver according to e_no_data_lane
+ * automatically.
+ * @e_clk_src: select byte clock source.
+ * this variable would be set by driver according to e_byte_clock
+ * automatically.
+ * @hs_clk: HS clock rate.
+ * this variable would be set by driver automatically.
+ * @byte_clk: Byte clock rate.
+ * this variable would be set by driver automatically.
+ * @escape_clk: ESCAPE clock rate.
+ * this variable would be set by driver automatically.
+ * @freq_band: indicates Bitclk frequency band for D-PHY global timing.
+ * Serial Clock(=ByteClk X 8) FreqBand[3:0]
+ * ~ 99.99 MHz 0000
+ * 100 ~ 119.99 MHz 0001
+ * 120 ~ 159.99 MHz 0010
+ * 160 ~ 199.99 MHz 0011
+ * 200 ~ 239.99 MHz 0100
+ * 140 ~ 319.99 MHz 0101
+ * 320 ~ 389.99 MHz 0110
+ * 390 ~ 449.99 MHz 0111
+ * 450 ~ 509.99 MHz 1000
+ * 510 ~ 559.99 MHz 1001
+ * 560 ~ 639.99 MHz 1010
+ * 640 ~ 689.99 MHz 1011
+ * 690 ~ 769.99 MHz 1100
+ * 770 ~ 869.99 MHz 1101
+ * 870 ~ 949.99 MHz 1110
+ * 950 ~ 1000 MHz 1111
+ * this variable would be calculated by driver automatically.
+ *
+ * @header_fifo_index: specifies header fifo index.
+ * this variable is not used yet.
+ */
+struct dsim_global {
+ struct device *dev;
+ struct clk *clock;
+ unsigned int irq;
+ void __iomem *reg_base;
+
+ struct regulator *r_mipi_1_1v;
+ struct regulator *r_mipi_1_8v;
+
+ struct s5p_platform_dsim *pd;
+ struct dsim_config *dsim_info;
+ struct dsim_lcd_config *dsim_lcd_info;
+ struct fb_videomode *lcd_panel_info;
+ struct mipi_ddi_platform_data *mipi_ddi_pd;
+ struct mipi_lcd_driver *mipi_drv;
+ struct notifier_block s3cfb_notif;
+
+ unsigned char state;
+ unsigned int data_lane;
+ enum dsim_byte_clk_src e_clk_src;
+ unsigned long hs_clk;
+ unsigned long byte_clk;
+ unsigned long escape_clk;
+ unsigned char freq_band;
+
+ char header_fifo_index[DSIM_HEADER_FIFO_SZ];
+};
+
+/*
+ * driver structure for mipi-dsi based lcd panel.
+ *
+ * this structure should be registered by lcd panel driver.
+ * mipi-dsi driver seeks lcd panel registered through name field
+ * and calls these callback functions in appropriate time.
+ */
+struct mipi_lcd_driver {
+ s8 *name;
+
+ s32 (*init)(struct device *dev);
+ void (*display_on)(struct device *dev);
+ s32 (*set_link)(struct mipi_ddi_platform_data *pd);
+ s32 (*probe)(struct device *dev);
+ s32 (*remove)(struct device *dev);
+ void (*shutdown)(struct device *dev);
+ s32 (*suspend)(struct device *dev);
+ s32 (*resume)(struct device *dev);
+};
+
+/*
+ * register mipi_lcd_driver object defined by lcd panel driver
+ * to mipi-dsi driver.
+ */
+extern int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv);
+
+/* reset MIPI PHY through MIPI PHY CONTROL REGISTER. */
+extern int s5p_dsim_part_reset(struct dsim_global *dsim);
+
+/* enable MIPI D-PHY and DSI Master block. */
+extern int s5p_dsim_init_d_phy(struct dsim_global *dsim);
+
+struct regulator;
+
+/* enable regulators to MIPI-DSI power. */
+extern int s5p_dsim_mipi_power(struct dsim_global *dsim,
+ struct regulator *p_mipi_1_1v, struct regulator *p_mipi_1_8v,
+ unsigned int enable);
+
+/* send commands to mipi based lcd panel. */
+extern int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+
+/* get framedone status of mipi-dsi controller. */
+extern int s5p_dsim_get_frame_done_status(void *dsim_data);
+
+/* clear framedone interrupt of mipi-dsi controller. */
+extern int s5p_dsim_clear_frame_done(void *dsim_data);
+
+/* wrapper function for changing transfer mode. */
+extern int s5p_dsim_change_transfer_mode(unsigned int mode);
+
+#endif /* _DSIM_H */
diff --git a/arch/arm/plat-samsung/include/plat/mipi_ddi.h b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
new file mode 100644
index 0000000..d9a82b7
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
@@ -0,0 +1,98 @@
+/* linux/arm/arch/mach-s5pc110/include/mach/mipi_ddi.h
+ *
+ * definitions for DDI based MIPI-DSI.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _MIPI_DDI_H
+#define _MIPI_DDI_H
+
+enum mipi_ddi_interface {
+ RGB_IF = 0x4000,
+ I80_IF = 0x8000,
+ YUV_601 = 0x10000,
+ YUV_656 = 0x20000,
+ MIPI_VIDEO = 0x1000,
+ MIPI_COMMAND = 0x2000,
+};
+
+enum mipi_ddi_panel_select {
+ DDI_MAIN_LCD = 0,
+ DDI_SUB_LCD = 1,
+};
+
+enum mipi_ddi_model {
+ S6DR117 = 0,
+};
+
+enum mipi_ddi_parameter {
+ /* DSIM video interface parameter */
+ DSI_VIRTUAL_CH_ID = 0,
+ DSI_FORMAT = 1,
+ DSI_VIDEO_MODE_SEL = 2,
+};
+
+struct lcd_device;
+struct fb_info;
+
+struct mipi_ddi_platform_data {
+ void *dsim_data;
+ /*
+ * it is used for command mode lcd panel and
+ * when all contents of framebuffer in panel module are transfered
+ * to lcd panel it occurs te signal.
+ *
+ * note:
+ * - in case of command mode(cpu mode), it should be triggered only
+ * when TE signal of lcd panel and frame done interrupt of display
+ * controller or mipi controller occurs.
+ */
+ unsigned int te_irq;
+
+ /*
+ * it is used for PM stable time at te interrupt handler and
+ * could be used according to lcd panel characteristic or not.
+ */
+ unsigned int resume_complete;
+
+ int (*lcd_reset) (struct lcd_device *ld);
+ int (*lcd_power_on) (struct lcd_device *ld, int enable);
+ int (*backlight_on) (int enable);
+
+ /* transfer command to lcd panel at LP mode. */
+ int (*cmd_write) (void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+ int (*cmd_read) (void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+ /*
+ * get the status that all screen data have been transferred
+ * to mipi-dsi.
+ */
+ int (*get_dsim_frame_done) (void *dsim_data);
+ int (*clear_dsim_frame_done) (void *dsim_data);
+
+ /*
+ * changes mipi transfer mode to LP or HS mode.
+ *
+ * LP mode needs when some commands like gamma values transfers
+ * to lcd panel.
+ */
+ int (*change_dsim_transfer_mode) (unsigned int mode);
+
+ /* get frame done status of display controller. */
+ int (*get_fb_frame_done) (struct fb_info *info);
+ /* trigger display controller in case of cpu mode. */
+ void (*trigger) (struct fb_info *info);
+
+ unsigned int reset_delay;
+ unsigned int power_on_delay;
+ unsigned int power_off_delay;
+};
+
+#endif /* _MIPI_DDI_H */
diff --git a/arch/arm/plat-samsung/include/plat/regs-dsim.h b/arch/arm/plat-samsung/include/plat/regs-dsim.h
new file mode 100644
index 0000000..dc83089
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/regs-dsim.h
@@ -0,0 +1,281 @@
+/* linux/arch/arm/plat-s5pc11x/include/plat/regs-dsim.h
+ *
+ * Register definition file for Samsung MIPI-DSIM driver
+ *
+ * InKi Dae <inki.dae@samsung.com>, Copyright (c) 2009 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _REGS_DSIM_H
+#define _REGS_DSIM_H
+
+#define S5P_DSIM_STATUS (0x0) /* Status register */
+#define S5P_DSIM_SWRST (0x4) /* Software reset register */
+#define S5P_DSIM_CLKCTRL (0x8) /* Clock control register */
+#define S5P_DSIM_TIMEOUT (0xc) /* Time out register */
+#define S5P_DSIM_CONFIG (0x10) /* Configuration register */
+#define S5P_DSIM_ESCMODE (0x14) /* Escape mode register */
+
+/* Main display image resolution register */
+#define S5P_DSIM_MDRESOL (0x18)
+#define S5P_DSIM_MVPORCH (0x1c) /* Main display Vporch register */
+#define S5P_DSIM_MHPORCH (0x20) /* Main display Hporch register */
+#define S5P_DSIM_MSYNC (0x24) /* Main display sync area register */
+
+/* Sub display image resolution register */
+#define S5P_DSIM_SDRESOL (0x28)
+#define S5P_DSIM_INTSRC (0x2c) /* Interrupt source register */
+#define S5P_DSIM_INTMSK (0x30) /* Interrupt mask register */
+#define S5P_DSIM_PKTHDR (0x34) /* Packet Header FIFO register */
+#define S5P_DSIM_PAYLOAD (0x38) /* Payload FIFO register */
+#define S5P_DSIM_RXFIFO (0x3c) /* Read FIFO register */
+#define S5P_DSIM_FIFOTHLD (0x40) /* FIFO threshold level register */
+#define S5P_DSIM_FIFOCTRL (0x44) /* FIFO status and control register */
+
+/* FIFO memory AC characteristic register */
+#define S5P_DSIM_MEMACCHR (0x48)
+#define S5P_DSIM_PLLCTRL (0x4c) /* PLL control register */
+#define S5P_DSIM_PLLTMR (0x50) /* PLL timer register */
+#define S5P_DSIM_PHYACCHR (0x54) /* D-PHY AC characteristic register */
+#define S5P_DSIM_PHYACCHR1 (0x58) /* D-PHY AC characteristic register1 */
+
+/* DSIM_SWRST */
+#define DSIM_FUNCRST (1 << 16)
+#define DSIM_SWRST (1 << 0)
+
+/* S5P_DSIM_TIMEOUT */
+#define DSIM_LPDR_TOUT_SHIFT (0)
+#define DSIM_BTA_TOUT_SHIFT (16)
+#define DSIM_LPDR_TOUT(x) (((x) & 0xffff) << DSIM_LPDR_TOUT_SHIFT)
+#define DSIM_BTA_TOUT(x) (((x) & 0xff) << DSIM_BTA_TOUT_SHIFT)
+
+/* S5P_DSIM_CLKCTRL */
+#define DSIM_ESC_PRESCALER_SHIFT (0)
+#define DSIM_LANE_ESC_CLKEN_SHIFT (19)
+#define DSIM_BYTE_CLKEN_SHIFT (24)
+#define DSIM_BYTE_CLK_SRC_SHIFT (25)
+#define DSIM_PLL_BYPASS_SHIFT (27)
+#define DSIM_ESC_CLKEN_SHIFT (28)
+#define DSIM_TX_REQUEST_HSCLK_SHIFT (31)
+#define DSIM_ESC_PRESCALER(x) (((x) & 0xffff) << \
+ DSIM_ESC_PRESCALER_SHIFT)
+#define DSIM_LANE_ESC_CLKEN(x) (((x) & 0x1f) << \
+ DSIM_LANE_ESC_CLKEN_SHIFT)
+#define DSIM_BYTE_CLK_ENABLE (1 << DSIM_BYTE_CLKEN_SHIFT)
+#define DSIM_BYTE_CLK_DISABLE (0 << DSIM_BYTE_CLKEN_SHIFT)
+#define DSIM_BYTE_CLKSRC(x) (((x) & 0x3) << DSIM_BYTE_CLK_SRC_SHIFT)
+#define DSIM_PLL_BYPASS_PLL (0 << DSIM_PLL_BYPASS_SHIFT)
+#define DSIM_PLL_BYPASS_EXTERNAL (1 << DSIM_PLL_BYPASS_SHIFT)
+#define DSIM_ESC_CLKEN_ENABLE (1 << DSIM_ESC_CLKEN_SHIFT)
+#define DSIM_ESC_CLKEN_DISABLE (0 << DSIM_ESC_CLKEN_SHIFT)
+
+/* S5P_DSIM_CONFIG */
+#define DSIM_LANE_EN_SHIFT (0)
+#define DSIM_NUM_OF_DATALANE_SHIFT (5)
+#define DSIM_SUB_PIX_FORMAT_SHIFT (8)
+#define DSIM_MAIN_PIX_FORMAT_SHIFT (12)
+#define DSIM_SUB_VC_SHIFT (16)
+#define DSIM_MAIN_VC_SHIFT (18)
+#define DSIM_HSA_MODE_SHIFT (20)
+#define DSIM_HBP_MODE_SHIFT (21)
+#define DSIM_HFP_MODE_SHIFT (22)
+#define DSIM_HSE_MODE_SHIFT (23)
+#define DSIM_AUTO_MODE_SHIFT (24)
+#define DSIM_VIDEO_MODE_SHIFT (25)
+#define DSIM_BURST_MODE_SHIFT (26)
+#define DSIM_SYNC_INFORM_SHIFT (27)
+#define DSIM_EOT_R03_SHIFT (28)
+#define DSIM_LANE_ENx(x) ((1) << x)
+
+/* in case of Gemunus, it should be 0x1. */
+#define DSIM_NUM_OF_DATA_LANE(x) ((x) << 5)
+#define DSIM_SUB_PIX_FORMAT_3BPP (0 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_8BPP (1 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_12BPP (2 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_16BPP (3 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_16BPP_RGB (4 << 8) /* video mode only */
+#define DSIM_SUB_PIX_FORMAT_18BPP_PRGB (5 << 8) /* video mode only */
+#define DSIM_SUB_PIX_FORMAT_18BPP_LRGB (6 << 8) /* common */
+#define DSIM_SUB_PIX_FORMAT_24BPP_RGB (7 << 8) /* common */
+#define DSIM_MAIN_PIX_FORMAT_3BPP (0 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_8BPP (1 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_12BPP (2 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_16BPP (3 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_16BPP_RGB (4 << 12) /* video mode only */
+#define DSIM_MAIN_PIX_FORMAT_18BPP_PRGB (5 << 12) /* video mode only */
+#define DSIM_MAIN_PIX_FORMAT_18BPP_LRGB (6 << 12) /* common */
+#define DSIM_MAIN_PIX_FORMAT_24BPP_RGB (7 << 12) /* common */
+
+/* Virtual channel number for sub display */
+#define DSIM_SUB_VC(x) (((x) & 0x3) << 16)
+/* Virtual channel number for main display */
+#define DSIM_MAIN_VC(x) (((x) & 0x3) << 18)
+#define DSIM_HSA_MODE_ENABLE (1 << 20)
+#define DSIM_HSA_MODE_DISABLE (0 << 20)
+#define DSIM_HBP_MODE_ENABLE (1 << 21)
+#define DSIM_HBP_MODE_DISABLE (0 << 21)
+#define DSIM_HFP_MODE_ENABLE (1 << 22)
+#define DSIM_HFP_MODE_DISABLE (0 << 22)
+#define DSIM_HSE_MODE_ENABLE (1 << 23)
+#define DSIM_HSE_MODE_DISABLE (0 << 23)
+#define DSIM_AUTO_MODE (1 << 24)
+#define DSIM_CONFIGURATION_MODE (0 << 24)
+#define DSIM_VIDEO_MODE (1 << 25)
+#define DSIM_COMMAND_MODE (0 << 25)
+#define DSIM_BURST_MODE (1 << 26)
+#define DSIM_NON_BURST_MODE (0 << 26)
+#define DSIM_SYNC_INFORM_PULSE (1 << 27)
+#define DSIM_SYNC_INFORM_EVENT (0 << 27)
+/* enable EoT packet generation for V1.01r11 */
+#define DSIM_EOT_R03_ENABLE (0 << 28)
+/* disable EoT packet generation for V1.01r03 */
+#define DSIM_EOT_R03_DISABLE (1 << 28)
+
+/* S5P_DSIM_ESCMODE */
+#define DSIM_STOP_STATE_CNT_SHIFT (21)
+#define DSIM_STOP_STATE_CNT(x) (((x) & 0x3ff) << \
+ DSIM_STOP_STATE_CNT_SHIFT)
+#define DSIM_FORCE_STOP_STATE_SHIFT (20)
+#define DSIM_FORCE_BTA_SHIFT (16)
+#define DSIM_CMD_LPDT_HS_MODE (0 << 7)
+#define DSIM_CMD_LPDT_LP_MODE (1 << 7)
+#define DSIM_TX_LPDT_HS_MODE (0 << 6)
+#define DSIM_TX_LPDT_LP_MODE (1 << 6)
+#define DSIM_TX_TRIGGER_RST_SHIFT (4)
+#define DSIM_TX_UIPS_DAT_SHIFT (3)
+#define DSIM_TX_UIPS_EXIT_SHIFT (2)
+#define DSIM_TX_UIPS_CLK_SHIFT (1)
+#define DSIM_TX_UIPS_CLK_EXIT_SHIFT (0)
+
+/* S5P_DSIM_MDRESOL */
+#define DSIM_MAIN_STAND_BY (1 << 31)
+#define DSIM_MAIN_NOT_READY (0 << 31)
+#define DSIM_MAIN_VRESOL(x) (((x) & 0x7ff) << 16)
+#define DSIM_MAIN_HRESOL(x) (((x) & 0X7ff) << 0)
+
+/* S5P_DSIM_MVPORCH */
+#define DSIM_CMD_ALLOW_SHIFT (28)
+#define DSIM_STABLE_VFP_SHIFT (16)
+#define DSIM_MAIN_VBP_SHIFT (0)
+#define DSIM_CMD_ALLOW_MASK (0xf << DSIM_CMD_ALLOW_SHIFT)
+#define DSIM_STABLE_VFP_MASK (0x7ff << DSIM_STABLE_VFP_SHIFT)
+#define DSIM_MAIN_VBP_MASK (0x7ff << DSIM_MAIN_VBP_SHIFT)
+#define DSIM_CMD_ALLOW(x) (((x) & 0xf) << DSIM_CMD_ALLOW_SHIFT)
+#define DSIM_STABLE_VFP(x) (((x) & 0x7ff) << DSIM_STABLE_VFP_SHIFT)
+#define DSIM_MAIN_VBP(x) (((x) & 0x7ff) << DSIM_MAIN_VBP_SHIFT)
+
+/* S5P_DSIM_MHPORCH */
+#define DSIM_MAIN_HFP_SHIFT (16)
+#define DSIM_MAIN_HBP_SHIFT (0)
+#define DSIM_MAIN_HFP_MASK ((0xffff) << DSIM_MAIN_HFP_SHIFT)
+#define DSIM_MAIN_HBP_MASK ((0xffff) << DSIM_MAIN_HBP_SHIFT)
+#define DSIM_MAIN_HFP(x) (((x) & 0xffff) << DSIM_MAIN_HFP_SHIFT)
+#define DSIM_MAIN_HBP(x) (((x) & 0xffff) << DSIM_MAIN_HBP_SHIFT)
+
+/* S5P_DSIM_MSYNC */
+#define DSIM_MAIN_VSA_SHIFT (22)
+#define DSIM_MAIN_HSA_SHIFT (0)
+#define DSIM_MAIN_VSA_MASK ((0x3ff) << DSIM_MAIN_VSA_SHIFT)
+#define DSIM_MAIN_HSA_MASK ((0xffff) << DSIM_MAIN_HSA_SHIFT)
+#define DSIM_MAIN_VSA(x) (((x) & 0x3ff) << DSIM_MAIN_VSA_SHIFT)
+#define DSIM_MAIN_HSA(x) (((x) & 0xffff) << DSIM_MAIN_HSA_SHIFT)
+
+/* S5P_DSIM_SDRESOL */
+#define DSIM_SUB_STANDY_SHIFT (31)
+#define DSIM_SUB_VRESOL_SHIFT (16)
+#define DSIM_SUB_HRESOL_SHIFT (0)
+#define DSIM_SUB_STANDY_MASK ((0x1) << DSIM_SUB_STANDY_SHIFT)
+#define DSIM_SUB_VRESOL_MASK ((0x7ff) << DSIM_SUB_VRESOL_SHIFT)
+#define DSIM_SUB_HRESOL_MASK ((0x7ff) << DSIM_SUB_HRESOL_SHIFT)
+#define DSIM_SUB_STANDY (1 << DSIM_SUB_STANDY_SHIFT)
+#define DSIM_SUB_NOT_READY (0 << DSIM_SUB_STANDY_SHIFT)
+#define DSIM_SUB_VRESOL(x) (((x) & 0x7ff) << DSIM_SUB_VRESOL_SHIFT)
+#define DSIM_SUB_HRESOL(x) (((x) & 0x7ff) << DSIM_SUB_HRESOL_SHIFT)
+
+/* S5P_DSIM_INTSRC */
+#define INTSRC_ERR_CONTENT_LP1 (1 << 0)
+#define INTSRC_ERR_CONTENT_LP0 (1 << 1)
+#define INTSRC_ERR_CONTROL0 (1 << 2)
+#define INTSRC_ERR_CONTROL1 (1 << 3)
+#define INTSRC_ERR_CONTROL2 (1 << 4)
+#define INTSRC_ERR_CONTROL3 (1 << 5)
+#define INTSRC_ERR_SYNC0 (1 << 6)
+#define INTSRC_ERR_SYNC1 (1 << 7)
+#define INTSRC_ERR_SYNC2 (1 << 8)
+#define INTSRC_ERR_SYNC3 (1 << 9)
+#define INTSRC_ERR_ESC0 (1 << 10)
+#define INTSRC_ERR_ESC1 (1 << 11)
+#define INTSRC_ERR_ESC2 (1 << 12)
+#define INTSRC_ERR_ESC3 (1 << 13)
+#define INTSRC_ERR_RX_CRC (1 << 14)
+#define INTSRC_ERR_RX_ECC (1 << 15)
+#define INTSRC_RX_ACK (1 << 16)
+#define INTSRC_RX_TE (1 << 17)
+#define INTSRC_RX_DAT_DONE (1 << 18)
+#define INTSRC_TA_TOUT (1 << 20)
+#define INTSRC_LPDR_TOUT (1 << 21)
+#define INTSRC_FRAME_DONE (1 << 24)
+#define INTSRC_BUS_TURN_OVER (1 << 25)
+#define INTSRC_SYNC_OVERRIDE (1 << 28)
+#define INTSRC_SFR_FIFO_EMPTY (1 << 29)
+#define INTSRC_SW_RST_RELEASE (1 << 30)
+#define INTSRC_PLL_STABLE (1 << 31)
+
+/* S5P_DSIM_INTMSK */
+#define INTMSK_ERR_CONTENT_LP1 (1 << 0)
+#define INTMSK_ERR_CONTENT_LP0 (1 << 1)
+#define INTMSK_ERR_CONTROL0 (1 << 2)
+#define INTMSK_ERR_CONTROL1 (1 << 3)
+#define INTMSK_ERR_CONTROL2 (1 << 4)
+#define INTMSK_ERR_CONTROL3 (1 << 5)
+#define INTMSK_ERR_SYNC0 (1 << 6)
+#define INTMSK_ERR_SYNC1 (1 << 7)
+#define INTMSK_ERR_SYNC2 (1 << 8)
+#define INTMSK_ERR_SYNC3 (1 << 9)
+#define INTMSK_ERR_ESC0 (1 << 10)
+#define INTMSK_ERR_ESC1 (1 << 11)
+#define INTMSK_ERR_ESC2 (1 << 12)
+#define INTMSK_ERR_ESC3 (1 << 13)
+#define INTMSK_ERR_RX_CRC (1 << 14)
+#define INTMSK_ERR_RX_ECC (1 << 15)
+#define INTMSK_RX_ACK (1 << 16)
+#define INTMSK_RX_TE (1 << 17)
+#define INTMSK_RX_DAT_DONE (1 << 18)
+#define INTMSK_TA_TOUT (1 << 20)
+#define INTMSK_LPDR_TOUT (1 << 21)
+#define INTMSK_FRAME_DONE (1 << 24)
+#define INTMSK_BUS_TURN_OVER (1 << 25)
+#define INTMSK_SFR_FIFO_EMPTY (1 << 29)
+#define INTMSK_SW_RST_RELEASE (1 << 30)
+#define INTMSK_PLL_STABLE (1 << 31)
+
+/* S5P_DSIM_PKTHDR */
+#define DSIM_PACKET_HEADER_DI(x) (((x) & 0xff) << 0)
+/* Word count lower byte for long packet */
+#define DSIM_PACKET_HEADER_DAT0(x) (((x) & 0xff) << 8)
+/* Word count upper byte for long packet */
+#define DSIM_PACKET_HEADER_DAT1(x) (((x) & 0xff) << 16)
+
+/* S5P_DSIM_FIFOCTRL */
+#define DSIM_RX_FIFO (1 << 4)
+#define DSIM_TX_SFR_FIFO (1 << 3)
+#define DSIM_I80_FIFO (1 << 2)
+#define DSIM_SUB_DISP_FIFO (1 << 1)
+#define DSIM_MAIN_DISP_FIFO (1 << 0)
+
+/* S5P_DSIM_PHYACCHR */
+#define DSIM_AFC_CTL(x) (((x) & 0x7) << 5)
+#define DSIM_AFC_ENABLE (1 << 14)
+#define DSIM_AFC_DISABLE (0 << 14)
+
+/* S5P_DSIM_PLLCTRL */
+#define DSIM_PMS_SHIFT (1)
+#define DSIM_PLL_EN_SHIFT (23)
+#define DSIM_FREQ_BAND_SHIFT (24)
+#define DSIM_PMS(x) (((x) & 0x7ffff) << DSIM_PMS_SHIFT)
+#define DSIM_FREQ_BAND(x) (((x) & 0xf) << DSIM_FREQ_BAND_SHIFT)
+
+#endif /* _REGS_DSIM_H */
diff --git a/arch/arm/plat-samsung/setup-dsim.c b/arch/arm/plat-samsung/setup-dsim.c
new file mode 100644
index 0000000..874efa0
--- /dev/null
+++ b/arch/arm/plat-samsung/setup-dsim.c
@@ -0,0 +1,144 @@
+/*
+ * S5PC110 MIPI-DSIM driver.
+ *
+ * Author: InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/regulator/consumer.h>
+
+#include <mach/map.h>
+#include <mach/regs-clock.h>
+
+#include <plat/dsim.h>
+#include <plat/clock.h>
+#include <plat/regs-dsim.h>
+
+static int s5p_dsim_enable_d_phy(struct dsim_global *dsim, unsigned int enable)
+{
+ unsigned int reg;
+
+ WARN_ON(dsim == NULL);
+
+ reg = readl(S5P_MIPI_CONTROL) & ~(1 << 0);
+ reg |= (enable << 0);
+ writel(reg, S5P_MIPI_CONTROL);
+
+ dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
+
+ return 0;
+}
+
+static int s5p_dsim_enable_dsi_master(struct dsim_global *dsim,
+ unsigned int enable)
+{
+ unsigned int reg;
+
+ WARN_ON(dsim == NULL);
+
+ reg = readl(S5P_MIPI_CONTROL) & ~(1 << 2);
+ reg |= (enable << 2);
+ writel(reg, S5P_MIPI_CONTROL);
+
+ dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
+
+ return 0;
+}
+
+int s5p_dsim_part_reset(struct dsim_global *dsim)
+{
+ WARN_ON(dsim == NULL);
+
+ writel(S5P_MIPI_M_RESETN, S5P_MIPI_PHY_CON0);
+
+ dev_dbg(dsim->dev, "%s\n", __func__);
+
+ return 0;
+}
+
+int s5p_dsim_init_d_phy(struct dsim_global *dsim)
+{
+ WARN_ON(dsim == NULL);
+
+ /**
+ * DPHY and Master block must be enabled at the system initialization
+ * step before data access from/to DPHY begins.
+ */
+ s5p_dsim_enable_d_phy(dsim, 1);
+
+ s5p_dsim_enable_dsi_master(dsim, 1);
+
+ dev_dbg(dsim->dev, "%s\n", __func__);
+
+ return 0;
+}
+
+int s5p_dsim_mipi_power(struct dsim_global *dsim, struct regulator *p_mipi_1_1v,
+ struct regulator *p_mipi_1_8v, unsigned int enable)
+{
+ int ret = -1;
+
+ WARN_ON(dsim == NULL);
+
+ if (IS_ERR(p_mipi_1_1v) || IS_ERR(p_mipi_1_8v)) {
+ dev_err(dsim->dev, "p_mipi_1_1v or p_mipi_1_8v is NULL.\n");
+ return -EINVAL;
+ }
+
+ if (enable) {
+ if (p_mipi_1_1v)
+ ret = regulator_enable(p_mipi_1_1v);
+
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to enable regulator mipi_1_1v.\n");
+ return ret;
+ }
+
+ if (p_mipi_1_8v)
+ ret = regulator_enable(p_mipi_1_8v);
+
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to enable regulator mipi_1_8v.\n");
+ return ret;
+ }
+ } else {
+ if (p_mipi_1_1v)
+ ret = regulator_force_disable(p_mipi_1_1v);
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to disable regulator mipi_1_1v.\n");
+ return ret;
+ }
+
+ if (p_mipi_1_8v)
+ ret = regulator_force_disable(p_mipi_1_8v);
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to disable regulator mipi_1_8v.\n");
+ return ret;
+ }
+ }
+
+ return ret;
+}
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 3d94a14..c916ac1 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1930,7 +1930,7 @@ config FB_TMIO_ACCELL
config FB_S3C
tristate "Samsung S3C framebuffer support"
- depends on FB && ARCH_S3C64XX
+ depends on FB && (ARCH_S3C64XX || ARCH_S5PV210)
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -1975,6 +1975,13 @@ config FB_S3C2410_DEBUG
Turn on debugging messages. Note that you can set/unset at run time
through sysfs
+config S5P_MIPI_DSI
+ tristate "Samsung SoC MIPI-DSI support."
+ depends on FB_S3C && ARCH_S5PV210
+ default n
+ ---help---
+ This enables support for MIPI-DSI device.
+
config FB_NUC900
bool "NUC900 LCD framebuffer support"
depends on FB && ARCH_W90X900
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index ddc2af2..d841433 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -115,6 +115,8 @@ obj-$(CONFIG_FB_SH7760) += sh7760fb.o
obj-$(CONFIG_FB_IMX) += imxfb.o
obj-$(CONFIG_FB_S3C) += s3c-fb.o
obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o
+obj-$(CONFIG_S5P_MIPI_DSI) += s5p-dsim.o s5p_dsim_common.o \
+ s5p_dsim_lowlevel.o
obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o
obj-$(CONFIG_FB_COBALT) += cobalt_lcdfb.o
obj-$(CONFIG_FB_PNX4008_DUM) += pnx4008/
diff --git a/drivers/video/s5p-dsim.c b/drivers/video/s5p-dsim.c
new file mode 100644
index 0000000..1ffc1e0
--- /dev/null
+++ b/drivers/video/s5p-dsim.c
@@ -0,0 +1,471 @@
+/* linux/drivers/video/samsung/s5p-dsim.c
+ *
+ * Samsung MIPI-DSIM driver.
+ *
+ * InKi Dae, <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/ctype.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/memory.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/kthread.h>
+#include <linux/regulator/consumer.h>
+#include <linux/notifier.h>
+
+#include <plat/fb.h>
+#include <plat/regs-dsim.h>
+#include <plat/dsim.h>
+#include <plat/mipi_ddi.h>
+
+#include <mach/map.h>
+
+#include "s5p_dsim_common.h"
+
+struct mipi_lcd_info {
+ struct list_head list;
+ struct mipi_lcd_driver *mipi_drv;
+};
+
+static LIST_HEAD(lcd_info_list);
+static DEFINE_MUTEX(mipi_lock);
+
+struct dsim_global dsim;
+
+struct s5p_platform_dsim *to_dsim_plat(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ return (struct s5p_platform_dsim *)pdev->dev.platform_data;
+}
+
+/*
+ * notifier callback function for fb_blank
+ * - this function would be called by device specific fb_blank.
+ */
+static int s5p_dsim_notifier_callback(struct notifier_block *self,
+ unsigned long event, void *data)
+{
+ switch (event) {
+ case FB_BLANK_UNBLANK:
+ case FB_BLANK_NORMAL:
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v,
+ dsim.r_mipi_1_8v, 1);
+
+ clk_enable(dsim.clock);
+
+ if (dsim.mipi_drv->resume)
+ dsim.mipi_drv->resume(dsim.dev);
+
+ s5p_dsim_init_dsim(&dsim);
+ s5p_dsim_init_link(&dsim);
+
+ s5p_dsim_set_hs_enable(&dsim);
+ s5p_dsim_set_data_transfer_mode(&dsim,
+ DSIM_TRANSFER_BYCPU, 1);
+
+ /* it needs delay for stabilization */
+ mdelay(dsim.pd->delay_for_stabilization);
+
+ if (dsim.mipi_drv->init)
+ dsim.mipi_drv->init(dsim.dev);
+ else
+ dev_warn(dsim.dev, "init func is null.\n");
+
+ s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
+
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
+ dsim.mipi_ddi_pd->resume_complete = 1;
+
+ dev_dbg(dsim.dev, "FB_BLANK_NORMAL or UNBLANK.\n");
+
+ break;
+ case FB_BLANK_POWERDOWN:
+ dsim.mipi_ddi_pd->resume_complete = 0;
+
+ if (dsim.mipi_drv->suspend)
+ dsim.mipi_drv->suspend(dsim.dev);
+
+ clk_disable(dsim.clock);
+
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v,
+ dsim.r_mipi_1_8v, 0);
+
+ dev_dbg(dsim.dev, "FB_BLANK_POWERDOWN.\n");
+ break;
+ default:
+ dev_warn(dsim.dev, "unknown FB_BLANK command.\n");
+ break;
+ }
+
+ return 0;
+}
+
+static int s5p_dsim_register_notif(struct device *dev)
+{
+ memset(&dsim.s3cfb_notif, 0, sizeof(struct notifier_block));
+ dsim.s3cfb_notif.notifier_call = s5p_dsim_notifier_callback;
+
+ return 0/*s3cfb_register_client(&dsim.s3cfb_notif)*/;
+}
+
+static irqreturn_t s5p_dsim_interrupt_handler(int irq, void *dev_id)
+{
+ disable_irq(irq);
+
+ /* additional work. */
+
+ enable_irq(irq);
+
+ return IRQ_HANDLED;
+}
+
+int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv)
+{
+ struct mipi_lcd_info *lcd_info = NULL;
+
+ lcd_info = kmalloc(sizeof(struct mipi_lcd_info), GFP_KERNEL);
+ if (lcd_info == NULL)
+ return -ENOMEM;
+
+ lcd_info->mipi_drv = kmalloc(sizeof(struct mipi_lcd_driver),
+ GFP_KERNEL);
+ if (lcd_info->mipi_drv == NULL)
+ return -ENOMEM;
+
+
+ memcpy(lcd_info->mipi_drv, lcd_drv, sizeof(struct mipi_lcd_driver));
+
+ mutex_lock(&mipi_lock);
+ list_add_tail(&lcd_info->list, &lcd_info_list);
+ mutex_unlock(&mipi_lock);
+
+ dev_dbg(dsim.dev, "registered panel driver(%s) to mipi-dsi driver.\n",
+ lcd_drv->name);
+
+ return 0;
+}
+
+/*
+ * This function is wrapper for changing transfer mode.
+ * It is used to in panel driver before and after changing gamma value.
+ */
+int s5p_dsim_change_transfer_mode(unsigned int mode)
+{
+ if (mode < 0 || mode > 1) {
+ dev_err(dsim.dev, "mode range should be 0 or 1.\n");
+ return -EFAULT;
+ }
+
+ if (mode == 0)
+ s5p_dsim_set_data_transfer_mode(&dsim,
+ DSIM_TRANSFER_BYCPU, mode);
+ else
+ s5p_dsim_set_data_transfer_mode(&dsim,
+ DSIM_TRANSFER_BYLCDC, mode);
+
+ return 0;
+}
+
+struct mipi_lcd_driver *scan_mipi_driver(const char *name)
+{
+ struct mipi_lcd_info *lcd_info;
+ struct mipi_lcd_driver *mipi_drv = NULL;
+
+ mutex_lock(&mipi_lock);
+
+ dev_dbg(dsim.dev, "find lcd panel driver(%s).\n",
+ name);
+
+ list_for_each_entry(lcd_info, &lcd_info_list, list) {
+ mipi_drv = lcd_info->mipi_drv;
+
+ if ((strcmp(mipi_drv->name, name)) == 0) {
+ mutex_unlock(&mipi_lock);
+ dev_dbg(dsim.dev, "found!!!(%s).\n", mipi_drv->name);
+ return mipi_drv;
+ }
+ }
+
+ dev_warn(dsim.dev, "failed to find lcd panel driver(%s).\n",
+ name);
+
+ mutex_unlock(&mipi_lock);
+
+ return NULL;
+}
+
+static int s5p_dsim_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ int ret = -1;
+
+ dsim.pd = to_dsim_plat(&pdev->dev);
+ dsim.dev = &pdev->dev;
+
+ /* set dsim config data, dsim lcd config data and lcd panel data. */
+ dsim.dsim_info = dsim.pd->dsim_info;
+ dsim.dsim_lcd_info = dsim.pd->dsim_lcd_info;
+ dsim.lcd_panel_info =
+ (struct fb_videomode *) dsim.dsim_lcd_info->lcd_panel_info;
+ dsim.mipi_ddi_pd =
+ (struct mipi_ddi_platform_data *)
+ dsim.dsim_lcd_info->mipi_ddi_pd;
+
+ dsim.mipi_ddi_pd->resume_complete = 0;
+
+ WARN_ON(dsim.pd->mipi_1_1v_name == NULL);
+
+ dsim.r_mipi_1_1v = regulator_get(&pdev->dev, dsim.pd->mipi_1_1v_name);
+ if (IS_ERR(dsim.r_mipi_1_1v)) {
+ dev_err(&pdev->dev, "failed to get regulator %s.\n",
+ dsim.pd->mipi_1_1v_name);
+ goto regulator_get_err;
+ }
+
+ WARN_ON(dsim.pd->mipi_1_8v_name == NULL);
+
+ dsim.r_mipi_1_8v = regulator_get(&pdev->dev, dsim.pd->mipi_1_8v_name);
+ if (IS_ERR(dsim.r_mipi_1_8v)) {
+ dev_err(&pdev->dev, "failed to get regulator %s.\n",
+ dsim.pd->mipi_1_8v_name);
+ goto regulator_get_err;
+ }
+
+ /* clock */
+ dsim.clock = clk_get(&pdev->dev, dsim.pd->clk_name);
+ if (IS_ERR(dsim.clock)) {
+ dev_err(&pdev->dev, "failed to get dsim clock source\n");
+ return -EINVAL;
+ }
+
+ clk_enable(dsim.clock);
+
+ /* io memory */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to get io memory region\n");
+ ret = -EINVAL;
+ goto err_clk_disable;
+ }
+
+ /* request mem region */
+ res = request_mem_region(res->start, resource_size(res), pdev->name);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to request io memory region\n");
+ ret = -EINVAL;
+ goto err_clk_disable;
+ }
+
+ /* ioremap for register block */
+ dsim.reg_base = ioremap(res->start, resource_size(res));
+ if (!dsim.reg_base) {
+ dev_err(&pdev->dev, "failed to remap io region\n");
+ ret = -EINVAL;
+ goto err_clk_disable;
+ }
+
+ /* it is used for MIPI-DSI based lcd panel driver. */
+ dsim.mipi_ddi_pd->dsim_data = (void *)&dsim;
+
+ /*
+ * it uses frame done interrupt handler
+ * only in case of MIPI Video mode.
+ */
+ if (dsim.dsim_lcd_info->e_interface == DSIM_VIDEO) {
+ dsim.irq = platform_get_irq(pdev, 0);
+ if (request_irq(dsim.irq, s5p_dsim_interrupt_handler,
+ IRQF_DISABLED, "mipi-dsi", &dsim)) {
+ dev_err(&pdev->dev, "request_irq failed.\n");
+ goto err_trigger_irq;
+ }
+ }
+
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v,
+ dsim.r_mipi_1_8v, 1);
+ else {
+ dev_err(&pdev->dev, "mipi_power is NULL.\n");
+ goto mipi_power_err;
+ }
+
+ /* find lcd panel driver registered to mipi-dsi driver. */
+ dsim.mipi_drv = scan_mipi_driver(dsim.pd->lcd_panel_name);
+ if (dsim.mipi_drv == NULL) {
+ dev_err(&pdev->dev, "mipi_drv is NULL.\n");
+ goto mipi_drv_err;
+ }
+
+ /* set lcd panel driver link */
+ ret = dsim.mipi_drv->set_link(dsim.mipi_ddi_pd);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to set link.\n");
+ goto mipi_drv_err;
+ }
+
+ dsim.mipi_drv->probe(&pdev->dev);
+
+ s5p_dsim_init_dsim(&dsim);
+ s5p_dsim_init_link(&dsim);
+
+ s5p_dsim_set_hs_enable(&dsim);
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
+
+ /* it needs delay for stabilization */
+ mdelay(dsim.pd->delay_for_stabilization);
+
+ /* initialize lcd panel */
+ if (dsim.mipi_drv->init)
+ dsim.mipi_drv->init(&pdev->dev);
+ else
+ dev_warn(&pdev->dev, "init func is null.\n");
+
+ if (dsim.mipi_drv->display_on)
+ dsim.mipi_drv->display_on(&pdev->dev);
+ else
+ dev_warn(&pdev->dev, "display_on func is null.\n");
+
+ s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
+
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
+
+ s5p_dsim_register_notif(&pdev->dev);
+
+ /* in case of command mode, trigger. */
+ if (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) {
+ if (dsim.pd->trigger)
+ dsim.pd->trigger(registered_fb[0]);
+ else
+ dev_warn(&pdev->dev, "trigger is null.\n");
+ }
+
+ dev_info(&pdev->dev, "mipi-dsi driver(%s mode) has been probed.\n",
+ (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) ?
+ "CPU" : "RGB");
+
+ return 0;
+
+err_trigger_irq:
+mipi_drv_err:
+ dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v, dsim.r_mipi_1_8v, 0);
+
+mipi_power_err:
+ iounmap((void __iomem *) dsim.reg_base);
+
+err_clk_disable:
+ clk_disable(dsim.clock);
+
+regulator_get_err:
+
+ return ret;
+
+}
+
+static int s5p_dsim_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+#ifdef CONFIG_PM
+int s5p_dsim_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ dsim.mipi_ddi_pd->resume_complete = 0;
+
+ if (dsim.mipi_drv->suspend)
+ dsim.mipi_drv->suspend(&pdev->dev);
+
+ clk_disable(dsim.clock);
+
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v,
+ dsim.r_mipi_1_8v, 0);
+
+ return 0;
+}
+
+int s5p_dsim_resume(struct platform_device *pdev)
+{
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v,
+ dsim.r_mipi_1_8v, 1);
+
+ clk_enable(dsim.clock);
+
+ if (dsim.mipi_drv->resume)
+ dsim.mipi_drv->resume(&pdev->dev);
+
+ s5p_dsim_init_dsim(&dsim);
+ s5p_dsim_init_link(&dsim);
+
+ s5p_dsim_set_hs_enable(&dsim);
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
+
+ /* it needs delay for stabilization */
+ mdelay(dsim.pd->delay_for_stabilization);
+
+ /* initialize lcd panel */
+ if (dsim.mipi_drv->init)
+ dsim.mipi_drv->init(&pdev->dev);
+ else
+ dev_warn(&pdev->dev, "init func is null.\n");
+
+ s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
+
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
+
+ dsim.mipi_ddi_pd->resume_complete = 1;
+
+ return 0;
+}
+#else
+#define s5p_dsim_suspend NULL
+#define s5p_dsim_resume NULL
+#endif
+
+static struct platform_driver s5p_dsim_driver = {
+ .probe = s5p_dsim_probe,
+ .remove = s5p_dsim_remove,
+ .suspend = s5p_dsim_suspend,
+ .resume = s5p_dsim_resume,
+ .driver = {
+ .name = "s5p-dsim",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int s5p_dsim_register(void)
+{
+ platform_driver_register(&s5p_dsim_driver);
+
+ return 0;
+}
+
+static void s5p_dsim_unregister(void)
+{
+ platform_driver_unregister(&s5p_dsim_driver);
+}
+
+module_init(s5p_dsim_register);
+module_exit(s5p_dsim_unregister);
+
+MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
+MODULE_DESCRIPTION("Samusung MIPI-DSIM driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/s5p_dsim_common.c b/drivers/video/s5p_dsim_common.c
new file mode 100644
index 0000000..2140b5d
--- /dev/null
+++ b/drivers/video/s5p_dsim_common.c
@@ -0,0 +1,689 @@
+/* linux/drivers/video/samsung/s5p_dsim_common.c
+ *
+ * Samsung MIPI-DSIM common driver.
+ *
+ * InKi Dae, <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/ctype.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/memory.h>
+#include <linux/delay.h>
+#include <linux/kthread.h>
+
+#include <plat/fb.h>
+#include <plat/regs-dsim.h>
+
+#include <mach/map.h>
+#include <plat/dsim.h>
+#include <plat/mipi_ddi.h>
+
+#include "s5p_dsim_lowlevel.h"
+
+static unsigned int dpll_table[15] = {
+ 100, 120, 170, 220, 270,
+ 320, 390, 450, 510, 560,
+ 640, 690, 770, 870, 950 };
+
+static void s5p_dsim_long_data_wr(struct dsim_global *dsim, unsigned int data0,
+ unsigned int data1)
+{
+ unsigned int data_cnt = 0, payload = 0;
+
+ WARN_ON(dsim == NULL);
+
+ /* in case that data count is more then 4 */
+ for (data_cnt = 0; data_cnt < data1; data_cnt += 4) {
+ /*
+ * after sending 4bytes per one time,
+ * send remainder data less then 4.
+ */
+ if ((data1 - data_cnt) < 4) {
+ if ((data1 - data_cnt) == 3) {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
+ (*(u8 *)(data0 + (data_cnt + 2))) << 16;
+ dev_dbg(dsim->dev, "count = 3 payload = %x, %x %x %x\n",
+ payload, *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)));
+ } else if ((data1 - data_cnt) == 2) {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8;
+ dev_dbg(dsim->dev,
+ "count = 2 payload = %x, %x %x\n", payload,
+ *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)));
+ } else if ((data1 - data_cnt) == 1) {
+ payload = *(u8 *)(data0 + data_cnt);
+ }
+
+ s5p_dsim_wr_tx_data(dsim, payload);
+ /* send 4bytes per one time. */
+ } else {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
+ (*(u8 *)(data0 + (data_cnt + 2))) << 16 |
+ (*(u8 *)(data0 + (data_cnt + 3))) << 24;
+
+ dev_dbg(dsim->dev,
+ "count = 4 payload = %x, %x %x %x %x\n",
+ payload, *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)),
+ *(u8 *)(data0 + (data_cnt + 3)));
+
+ s5p_dsim_wr_tx_data(dsim, payload);
+ }
+ }
+}
+
+int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1)
+{
+ struct dsim_global *dsim = NULL;
+ unsigned int timeout = 5000 * 2;
+ unsigned long delay_val, udelay;
+ unsigned int check_rx_ack = 0;
+
+ dsim = (struct dsim_global *)dsim_data;
+
+ WARN_ON(dsim == NULL);
+
+ if (dsim->state == DSIM_STATE_ULPS) {
+ dev_err(dsim->dev, "state is ULPS.\n");
+
+ return -EINVAL;
+ }
+
+ delay_val = 1000000 / dsim->dsim_info->esc_clk;
+ udelay = 10 * delay_val;
+
+ mdelay(udelay);
+
+ /* only if transfer mode is LPDT, wait SFR becomes empty. */
+ if (dsim->state == DSIM_STATE_STOP) {
+ while (!(s5p_dsim_get_fifo_state(dsim) &
+ SFR_HEADER_EMPTY)) {
+ if ((timeout--) > 0)
+ mdelay(1);
+ else {
+ dev_err(dsim->dev,
+ "SRF header fifo is not empty.\n");
+ return -EINVAL;
+ }
+ }
+ }
+
+ switch (data_id) {
+ /* short packet types of packet types for command. */
+ case GEN_SHORT_WR_NO_PARA:
+ case GEN_SHORT_WR_1_PARA:
+ case GEN_SHORT_WR_2_PARA:
+ case DCS_WR_NO_PARA:
+ case DCS_WR_1_PARA:
+ case SET_MAX_RTN_PKT_SIZE:
+ s5p_dsim_wr_tx_header(dsim, data_id, data0, data1);
+ if (check_rx_ack)
+ /* process response func should be implemented */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* general command */
+ case CMD_OFF:
+ case CMD_ON:
+ case SHUT_DOWN:
+ case TURN_ON:
+ s5p_dsim_wr_tx_header(dsim, data_id, data0, data1);
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* packet types for video data */
+ case VSYNC_START:
+ case VSYNC_END:
+ case HSYNC_START:
+ case HSYNC_END:
+ case EOT_PKT:
+ return 0;
+
+ /* short and response packet types for command */
+ case GEN_RD_1_PARA:
+ case GEN_RD_2_PARA:
+ case GEN_RD_NO_PARA:
+ case DCS_RD_NO_PARA:
+ s5p_dsim_clear_interrupt(dsim, 0xffffffff);
+ s5p_dsim_wr_tx_header(dsim, data_id, data0, data1);
+ /* process response func should be implemented. */
+ return 0;
+
+ /* long packet type and null packet */
+ case NULL_PKT:
+ case BLANKING_PKT:
+ return 0;
+ case GEN_LONG_WR:
+ case DCS_LONG_WR:
+ {
+ unsigned int size, data_cnt = 0, payload = 0;
+
+ size = data1 * 4;
+
+ /* if data count is less then 4, then send 3bytes data. */
+ if (data1 < 4) {
+ payload = *(u8 *)(data0) |
+ *(u8 *)(data0 + 1) << 8 |
+ *(u8 *)(data0 + 2) << 16;
+
+ s5p_dsim_wr_tx_data(dsim, payload);
+
+ dev_dbg(dsim->dev, "count = %d payload = %x,%x %x %x\n",
+ data1, payload,
+ *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)));
+ /* in case that data count is more then 4 */
+ } else
+ s5p_dsim_long_data_wr(dsim, data0, data1);
+
+ /* put data into header fifo */
+ s5p_dsim_wr_tx_header(dsim, data_id, data1 & 0xff,
+ (data1 & 0xff00) >> 8);
+
+ }
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* packet typo for video data */
+ case RGB565_PACKED:
+ case RGB666_PACKED:
+ case RGB666_LOOSLY:
+ case RGB888_PACKED:
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+ default:
+ dev_warn(dsim->dev,
+ "data id %x is not supported current DSI spec.\n",
+ data_id);
+
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int s5p_dsim_init_header_fifo(struct dsim_global *dsim)
+{
+ unsigned int cnt;
+
+ WARN_ON(dsim == NULL);
+
+ for (cnt = 0; cnt < DSIM_HEADER_FIFO_SZ; cnt++)
+ dsim->header_fifo_index[cnt] = -1;
+
+ return 0;
+}
+
+int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned int enable)
+{
+ WARN_ON(dsim == NULL);
+
+ if (enable) {
+ int sw_timeout = 1000;
+ s5p_dsim_clear_interrupt(dsim, DSIM_PLL_STABLE);
+ s5p_dsim_enable_pll(dsim, 1);
+ while (1) {
+ sw_timeout--;
+ if (s5p_dsim_is_pll_stable(dsim))
+ return 0;
+ if (sw_timeout == 0)
+ return -EINVAL;
+ }
+ } else
+ s5p_dsim_enable_pll(dsim, 0);
+
+ return 0;
+}
+
+unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
+ unsigned int pre_divider, unsigned int main_divider,
+ unsigned int scaler)
+{
+ unsigned long dfin_pll, dfvco, dpll_out;
+ unsigned int i, freq_band = 0xf;
+
+ WARN_ON(dsim == NULL);
+
+ dfin_pll = (MIPI_FIN / pre_divider);
+
+ if (dfin_pll < 6 * 1000 * 1000 || dfin_pll > 12 * 1000 * 1000) {
+ dev_warn(dsim->dev, "warning!!\n");
+ dev_warn(dsim->dev, "fin_pll range is 6MHz ~ 12MHz\n");
+ dev_warn(dsim->dev, "fin_pll of mipi dphy pll is %luMHz\n",
+ (dfin_pll / 1000000));
+
+ s5p_dsim_enable_afc(dsim, 0, 0);
+ } else {
+ if (dfin_pll < 7 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x1);
+ else if (dfin_pll < 8 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x0);
+ else if (dfin_pll < 9 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x3);
+ else if (dfin_pll < 10 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x2);
+ else if (dfin_pll < 11 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x5);
+ else
+ s5p_dsim_enable_afc(dsim, 1, 0x4);
+ }
+
+ dfvco = dfin_pll * main_divider;
+ dev_dbg(dsim->dev, "dfvco = %lu, dfin_pll = %lu, main_divider = %d\n",
+ dfvco, dfin_pll, main_divider);
+ if (dfvco < 500000000 || dfvco > 1000000000) {
+ dev_warn(dsim->dev, "Caution!!\n");
+ dev_warn(dsim->dev, "fvco range is 500MHz ~ 1000MHz\n");
+ dev_warn(dsim->dev, "fvco of mipi dphy pll is %luMHz\n",
+ (dfvco / 1000000));
+ }
+
+ dpll_out = dfvco / (1 << scaler);
+ dev_dbg(dsim->dev, "dpll_out = %lu, dfvco = %lu, scaler = %d\n",
+ dpll_out, dfvco, scaler);
+
+ for (i = 0; i < ARRAY_SIZE(dpll_table); i++) {
+ if (dpll_out < dpll_table[i] * 1000000) {
+ freq_band = i;
+ break;
+ }
+ }
+
+ dev_dbg(dsim->dev, "freq_band = %d\n", freq_band);
+
+ s5p_dsim_pll_freq(dsim, pre_divider, main_divider, scaler);
+
+ s5p_dsim_hs_zero_ctrl(dsim, 0);
+ s5p_dsim_prep_ctrl(dsim, 0);
+
+ /* Freq Band */
+ s5p_dsim_pll_freq_band(dsim, freq_band);
+
+ /* Stable time */
+ s5p_dsim_pll_stable_time(dsim,
+ dsim->dsim_info->pll_stable_time);
+
+ /* Enable PLL */
+ dev_dbg(dsim->dev, "FOUT of mipi dphy pll is %luMHz\n",
+ (dpll_out / 1000000));
+
+ return dpll_out;
+}
+
+int s5p_dsim_set_clock(struct dsim_global *dsim,
+ unsigned int byte_clk_sel, unsigned int enable)
+{
+ unsigned int esc_div;
+ unsigned long esc_clk_error_rate;
+
+ WARN_ON(dsim == NULL);
+
+ if (enable) {
+ dsim->e_clk_src = byte_clk_sel;
+
+ /* Escape mode clock and byte clock source */
+ s5p_dsim_set_byte_clock_src(dsim, byte_clk_sel);
+
+ /* DPHY, DSIM Link : D-PHY clock out */
+ if (byte_clk_sel == DSIM_PLL_OUT_DIV8) {
+ dsim->hs_clk = s5p_dsim_change_pll(dsim,
+ dsim->dsim_info->p, dsim->dsim_info->m,
+ dsim->dsim_info->s);
+ if (dsim->hs_clk == 0) {
+ dev_err(dsim->dev,
+ "failed to get hs clock.\n");
+ return -EINVAL;
+ }
+
+ dsim->byte_clk = dsim->hs_clk / 8;
+ s5p_dsim_enable_pll_bypass(dsim, 0);
+ s5p_dsim_pll_on(dsim, 1);
+ /* DPHY : D-PHY clock out, DSIM link : external clock out */
+ } else if (byte_clk_sel == DSIM_EXT_CLK_DIV8)
+ dev_warn(dsim->dev,
+ "this project is not support \
+ external clock source for MIPI DSIM\n");
+ else if (byte_clk_sel == DSIM_EXT_CLK_BYPASS)
+ dev_warn(dsim->dev,
+ "this project is not support \
+ external clock source for MIPI DSIM\n");
+
+ /* escape clock divider */
+ esc_div = dsim->byte_clk / (dsim->dsim_info->esc_clk);
+ dev_dbg(dsim->dev,
+ "esc_div = %d, byte_clk = %lu, esc_clk = %lu\n",
+ esc_div, dsim->byte_clk, dsim->dsim_info->esc_clk);
+ if ((dsim->byte_clk / esc_div) >= 20000000 ||
+ (dsim->byte_clk / esc_div) > dsim->dsim_info->esc_clk)
+ esc_div += 1;
+
+ dsim->escape_clk = dsim->byte_clk / esc_div;
+ dev_dbg(dsim->dev,
+ "escape_clk = %lu, byte_clk = %lu, esc_div = %d\n",
+ dsim->escape_clk, dsim->byte_clk, esc_div);
+
+ /*
+ * enable escclk on lane
+ *
+ * in case of evt0, DSIM_TRUE is enable and
+ * DSIM_FALSE is enable for evt1.
+ */
+ if (dsim->pd->platform_rev == 1)
+ s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
+ else
+ s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
+
+ /* enable byte clk and escape clock */
+ s5p_dsim_set_esc_clk_prs(dsim, 1, esc_div);
+ /* escape clock on lane */
+ s5p_dsim_enable_esc_clk_on_lane(dsim,
+ (DSIM_LANE_CLOCK | dsim->data_lane), 1);
+
+ dev_dbg(dsim->dev, "byte clock is %luMHz\n",
+ (dsim->byte_clk / 1000000));
+ dev_dbg(dsim->dev, "escape clock that user's need is %lu\n",
+ (dsim->dsim_info->esc_clk / 1000000));
+ dev_dbg(dsim->dev, "escape clock divider is %x\n", esc_div);
+ dev_dbg(dsim->dev, "escape clock is %luMHz\n",
+ ((dsim->byte_clk / esc_div) / 1000000));
+
+ if ((dsim->byte_clk / esc_div) > dsim->escape_clk) {
+ esc_clk_error_rate = dsim->escape_clk /
+ (dsim->byte_clk / esc_div);
+ dev_warn(dsim->dev, "error rate is %lu over.\n",
+ (esc_clk_error_rate / 100));
+ } else if ((dsim->byte_clk / esc_div) < (dsim->escape_clk)) {
+ esc_clk_error_rate = (dsim->byte_clk / esc_div) /
+ dsim->escape_clk;
+ dev_warn(dsim->dev, "error rate is %lu under.\n",
+ (esc_clk_error_rate / 100));
+ }
+ } else {
+ s5p_dsim_enable_esc_clk_on_lane(dsim,
+ (DSIM_LANE_CLOCK | dsim->data_lane), 0);
+ s5p_dsim_set_esc_clk_prs(dsim, 0, 0);
+
+ /*
+ * in case of evt0, DSIM_FALSE is disable and
+ * DSIM_TRUE is disable for evt1.
+ */
+ if (dsim->pd->platform_rev == 1)
+ s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
+ else
+ s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
+
+ if (byte_clk_sel == DSIM_PLL_OUT_DIV8)
+ s5p_dsim_pll_on(dsim, 0);
+ }
+
+ return 0;
+}
+
+int s5p_dsim_init_dsim(struct dsim_global *dsim)
+{
+ WARN_ON(dsim == NULL);
+
+ if (dsim->pd->init_d_phy)
+ dsim->pd->init_d_phy(dsim);
+
+ dsim->state = DSIM_STATE_RESET;
+
+ switch (dsim->dsim_info->e_no_data_lane) {
+ case DSIM_DATA_LANE_1:
+ dsim->data_lane = DSIM_LANE_DATA0;
+ break;
+ case DSIM_DATA_LANE_2:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1;
+ break;
+ case DSIM_DATA_LANE_3:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
+ DSIM_LANE_DATA2;
+ break;
+ case DSIM_DATA_LANE_4:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
+ DSIM_LANE_DATA2 | DSIM_LANE_DATA3;
+ break;
+ default:
+ dev_info(dsim->dev, "data lane is invalid.\n");
+ return -EINVAL;
+ };
+
+ s5p_dsim_init_header_fifo(dsim);
+ s5p_dsim_sw_reset(dsim);
+ s5p_dsim_dp_dn_swap(dsim, dsim->dsim_info->e_lane_swap);
+
+ return 0;
+}
+
+int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim,
+ unsigned int enable)
+{
+ /* enable only frame done interrupt */
+ s5p_dsim_set_interrupt_mask(dsim, INTMSK_FRAME_DONE, enable);
+
+ return 0;
+}
+
+int s5p_dsim_set_display_mode(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
+{
+ struct fb_videomode *mlcd_video = NULL;
+ struct fb_cmdmode *mlcd_command = NULL;
+ struct s3c_fb_pd_win *pd;
+ unsigned int width = 0, height = 0;
+
+ WARN_ON(dsim == NULL);
+
+ pd = (struct s3c_fb_pd_win *)main_lcd->lcd_panel_info;
+
+ /* in case of VIDEO MODE (RGB INTERFACE) */
+ if (dsim->dsim_lcd_info->e_interface == (u32) DSIM_VIDEO) {
+ mlcd_video = (struct fb_videomode *)&pd->win_mode;
+ width = mlcd_video->xres;
+ height = mlcd_video->yres;
+
+ if (dsim->dsim_info->auto_vertical_cnt == DSIM_FALSE) {
+ s5p_dsim_set_main_disp_vporch(dsim,
+ mlcd_video->upper_margin,
+ mlcd_video->lower_margin, 0);
+ s5p_dsim_set_main_disp_hporch(dsim,
+ mlcd_video->left_margin,
+ mlcd_video->right_margin);
+ s5p_dsim_set_main_disp_sync_area(dsim,
+ mlcd_video->vsync_len,
+ mlcd_video->hsync_len);
+ }
+ } else { /* in case of COMMAND MODE (CPU or I80 INTERFACE) */
+ mlcd_command = (struct fb_cmdmode *)&pd->cmd_mode;
+ width = mlcd_command->xres;
+ height = mlcd_command->yres;
+ }
+
+ s5p_dsim_set_main_disp_resol(dsim, height, width);
+
+ if (sub_lcd != NULL)
+ dev_warn(dsim->dev, "sub lcd isn't supported yet.\n");
+
+ s5p_dsim_display_config(dsim, dsim->dsim_lcd_info, NULL);
+
+ return 0;
+}
+
+int s5p_dsim_init_link(struct dsim_global *dsim)
+{
+ unsigned int time_out = 100;
+
+ WARN_ON(dsim == NULL);
+
+ switch (dsim->state) {
+ case DSIM_STATE_RESET:
+ s5p_dsim_sw_reset(dsim);
+ case DSIM_STATE_INIT:
+ s5p_dsim_init_fifo_pointer(dsim, 0x1f);
+
+ /* dsi configuration */
+ s5p_dsim_init_config(dsim, dsim->dsim_lcd_info,
+ NULL, dsim->dsim_info);
+ s5p_dsim_enable_lane(dsim, DSIM_LANE_CLOCK, 1);
+ s5p_dsim_enable_lane(dsim, dsim->data_lane, 1);
+
+ /* set clock configuration */
+ s5p_dsim_set_clock(dsim, dsim->dsim_info->e_byte_clk,
+ 1);
+
+ /* check clock and data lane state is stop state */
+ while (!(s5p_dsim_is_lane_state(dsim, DSIM_LANE_CLOCK)
+ == DSIM_LANE_STATE_STOP) &&
+ !(s5p_dsim_is_lane_state(dsim,
+ dsim->data_lane) == DSIM_LANE_STATE_STOP)) {
+ time_out--;
+ if (time_out == 0) {
+ dev_info(dsim->dev,
+ "DSI Master is not stop state.\n");
+ dev_info(dsim->dev,
+ "Check initialization process\n");
+
+ return -EINVAL;
+ }
+ }
+
+ if (time_out != 0) {
+ dev_info(dsim->dev,
+ "initialization of DSI Master is successful\n");
+ dev_info(dsim->dev, "DSI Master state is stop state\n");
+ }
+
+ dsim->state = DSIM_STATE_STOP;
+
+ /* BTA sequence counters */
+ s5p_dsim_set_stop_state_counter(dsim,
+ dsim->dsim_info->stop_holding_cnt);
+ s5p_dsim_set_bta_timeout(dsim,
+ dsim->dsim_info->bta_timeout);
+ s5p_dsim_set_lpdr_timeout(dsim,
+ dsim->dsim_info->rx_timeout);
+
+ /* default LPDT by both cpu and lcd controller */
+ s5p_dsim_set_data_mode(dsim, DSIM_TRANSFER_BOTH,
+ DSIM_STATE_STOP);
+
+ return 0;
+ default:
+ dev_info(dsim->dev, "DSI Master is already init.\n");
+ return 0;
+ }
+
+ return 0;
+}
+
+int s5p_dsim_set_hs_enable(struct dsim_global *dsim)
+{
+ WARN_ON(dsim == NULL);
+
+ if (dsim->state == DSIM_STATE_STOP) {
+ if (dsim->e_clk_src != DSIM_EXT_CLK_BYPASS) {
+ dsim->state = DSIM_STATE_HSCLKEN;
+ s5p_dsim_set_data_mode(dsim,
+ DSIM_TRANSFER_BOTH, DSIM_STATE_HSCLKEN);
+ s5p_dsim_enable_hs_clock(dsim, 1);
+
+ return 0;
+ } else
+ dev_warn(dsim->dev,
+ "clock source is external bypass.\n");
+ } else
+ dev_warn(dsim->dev, "DSIM is not stop state.\n");
+
+ return 0;
+}
+
+int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
+ unsigned int data_path, unsigned int hs_enable)
+{
+ int ret = -1;
+
+ WARN_ON(dsim == NULL);
+
+ if (hs_enable) {
+ if (dsim->state == DSIM_STATE_HSCLKEN) {
+ s5p_dsim_set_data_mode(dsim, data_path,
+ DSIM_STATE_HSCLKEN);
+ ret = 0;
+ } else {
+ dev_err(dsim->dev, "HS Clock lane is not enabled.\n");
+ ret = -EINVAL;
+ }
+ } else {
+ if (dsim->state == DSIM_STATE_INIT || dsim->state ==
+ DSIM_STATE_ULPS) {
+ dev_err(dsim->dev,
+ "DSI Master is not STOP or HSDT state.\n");
+ ret = -EINVAL;
+ } else {
+ s5p_dsim_set_data_mode(dsim, data_path,
+ DSIM_STATE_STOP);
+ ret = 0;
+ }
+ }
+
+ return ret;
+}
+
+int s5p_dsim_get_frame_done_status(void *dsim_data)
+{
+ struct dsim_global *dsim = NULL;
+
+ dsim = (struct dsim_global *)dsim_data;
+
+ WARN_ON(dsim == NULL);
+
+ return _s5p_dsim_get_frame_done_status(dsim);
+}
+
+int s5p_dsim_clear_frame_done(void *dsim_data)
+{
+ struct dsim_global *dsim = NULL;
+
+ dsim = (struct dsim_global *)dsim_data;
+
+ WARN_ON(dsim == NULL);
+
+ _s5p_dsim_clear_frame_done(dsim);
+
+ return 0;
+}
+
+MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
+MODULE_DESCRIPTION("Samusung MIPI-DSIM common driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/s5p_dsim_common.h b/drivers/video/s5p_dsim_common.h
new file mode 100644
index 0000000..95f51bc
--- /dev/null
+++ b/drivers/video/s5p_dsim_common.h
@@ -0,0 +1,35 @@
+/* linux/drivers/video/samsung/s5p_dsim_common.h
+ *
+ * Header file for Samsung MIPI-DSI common driver.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _S5P_DSIM_COMMON_H
+#define _S5P_DSIM_COMMON_H
+
+extern int s5p_dsim_init_header_fifo(struct dsim_global *dsim);
+extern int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned int enable);
+extern unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
+ unsigned int pre_divider, unsigned int main_divider,
+ unsigned int scaler);
+extern int s5p_dsim_set_clock(struct dsim_global *dsim,
+ unsigned int byte_clk_sel, unsigned int enable);
+extern int s5p_dsim_init_dsim(struct dsim_global *dsim);
+extern int s5p_dsim_set_display_mode(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd);
+extern int s5p_dsim_init_link(struct dsim_global *dsim);
+extern int s5p_dsim_set_hs_enable(struct dsim_global *dsim);
+extern int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
+ unsigned int data_path, unsigned int hs_enable);
+extern int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim,
+ unsigned int enable);
+
+extern struct fb_info *registered_fb[FB_MAX] __read_mostly;
+
+#endif /* _S5P_DSIM_COMMON_H */
diff --git a/drivers/video/s5p_dsim_lowlevel.c b/drivers/video/s5p_dsim_lowlevel.c
new file mode 100644
index 0000000..b2fc249
--- /dev/null
+++ b/drivers/video/s5p_dsim_lowlevel.c
@@ -0,0 +1,569 @@
+/* linux/drivers/video/samsung/s5p-dsim.c
+ *
+ * Samsung MIPI-DSIM lowlevel driver.
+ *
+ * InKi Dae, <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <linux/delay.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/ctype.h>
+#include <linux/io.h>
+
+#include <mach/map.h>
+
+#include <plat/dsim.h>
+#include <plat/mipi_ddi.h>
+#include <plat/regs-dsim.h>
+
+void s5p_dsim_func_reset(struct dsim_global *dsim)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_SWRST);
+
+ reg |= DSIM_FUNCRST;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_SWRST);
+}
+
+void s5p_dsim_sw_reset(struct dsim_global *dsim)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_SWRST);
+
+ reg |= DSIM_SWRST;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_SWRST);
+}
+
+void s5p_dsim_set_interrupt_mask(struct dsim_global *dsim, unsigned int mode,
+ unsigned int mask)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTMSK);
+
+ if (mask)
+ reg |= mode;
+ else
+ reg &= ~mode;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_INTMSK);
+}
+
+void s5p_dsim_init_fifo_pointer(struct dsim_global *dsim, unsigned int cfg)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_FIFOCTRL);
+
+ writel(reg & ~(cfg), dsim->reg_base + S5P_DSIM_FIFOCTRL);
+ mdelay(10);
+ reg |= cfg;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_FIFOCTRL);
+}
+
+/*
+ * this function set PLL P, M and S value in D-PHY
+ */
+void s5p_dsim_set_phy_tunning(struct dsim_global *dsim, unsigned int value)
+{
+ writel(DSIM_AFC_CTL(value), dsim->reg_base + S5P_DSIM_PHYACCHR);
+}
+
+void s5p_dsim_set_main_disp_resol(struct dsim_global *dsim,
+ unsigned int vert_resol, unsigned int hori_resol)
+{
+ unsigned int reg;
+
+ /* standby should be set after configuration so set to not ready*/
+ reg = (readl(dsim->reg_base + S5P_DSIM_MDRESOL)) &
+ ~(DSIM_MAIN_STAND_BY);
+ writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
+
+ reg &= ~(0x7ff << 16) & ~(0x7ff << 0);
+ reg |= DSIM_MAIN_VRESOL(vert_resol) | DSIM_MAIN_HRESOL(hori_resol);
+
+ reg |= DSIM_MAIN_STAND_BY;
+ writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
+}
+
+void s5p_dsim_set_main_disp_vporch(struct dsim_global *dsim,
+ unsigned int cmd_allow, unsigned int vfront, unsigned int vback)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_MVPORCH)) &
+ ~(DSIM_CMD_ALLOW_MASK) & ~(DSIM_STABLE_VFP_MASK) &
+ ~(DSIM_MAIN_VBP_MASK);
+
+ reg |= ((cmd_allow & 0xf) << DSIM_CMD_ALLOW_SHIFT) |
+ ((vfront & 0x7ff) << DSIM_STABLE_VFP_SHIFT) |
+ ((vback & 0x7ff) << DSIM_MAIN_VBP_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_MVPORCH);
+}
+
+void s5p_dsim_set_main_disp_hporch(struct dsim_global *dsim,
+ unsigned int front, unsigned int back)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_MHPORCH)) &
+ ~(DSIM_MAIN_HFP_MASK) & ~(DSIM_MAIN_HBP_MASK);
+
+ reg |= (front << DSIM_MAIN_HFP_SHIFT) | (back << DSIM_MAIN_HBP_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_MHPORCH);
+}
+
+void s5p_dsim_set_main_disp_sync_area(struct dsim_global *dsim,
+ unsigned int vert, unsigned int hori)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_MSYNC)) &
+ ~(DSIM_MAIN_VSA_MASK) & ~(DSIM_MAIN_HSA_MASK);
+
+ reg |= ((vert & 0x3ff) << DSIM_MAIN_VSA_SHIFT) |
+ (hori << DSIM_MAIN_HSA_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_MSYNC);
+}
+
+void s5p_dsim_set_sub_disp_resol(struct dsim_global *dsim,
+ unsigned int vert, unsigned int hori)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_SDRESOL)) &
+ ~(DSIM_SUB_STANDY_MASK);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
+
+ reg &= ~(DSIM_SUB_VRESOL_MASK) | ~(DSIM_SUB_HRESOL_MASK);
+ reg |= ((vert & 0x7ff) << DSIM_SUB_VRESOL_SHIFT) |
+ ((hori & 0x7ff) << DSIM_SUB_HRESOL_SHIFT);
+ writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
+
+ reg |= (1 << DSIM_SUB_STANDY_SHIFT);
+ writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
+}
+
+void s5p_dsim_init_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd_info,
+ struct dsim_lcd_config *sub_lcd_info, struct dsim_config *dsim_info)
+{
+ unsigned int cfg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
+ ~(1 << 28) & ~(0x1f << 20) & ~(0x3 << 5);
+
+ cfg = (dsim_info->auto_flush << 29) |
+ (dsim_info->eot_disable << 28) |
+ (dsim_info->auto_vertical_cnt << DSIM_AUTO_MODE_SHIFT) |
+ (dsim_info->hse << DSIM_HSE_MODE_SHIFT) |
+ (dsim_info->hfp << DSIM_HFP_MODE_SHIFT) |
+ (dsim_info->hbp << DSIM_HBP_MODE_SHIFT) |
+ (dsim_info->hsa << DSIM_HSA_MODE_SHIFT) |
+ (dsim_info->e_no_data_lane << DSIM_NUM_OF_DATALANE_SHIFT);
+
+ writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+void s5p_dsim_display_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
+{
+ u32 reg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
+ ~(0x3 << 26) & ~(1 << 25) & ~(0x3 << 18) & ~(0x7 << 12) &
+ ~(0x3 << 16) & ~(0x7 << 8);
+
+ if (main_lcd->e_interface == DSIM_VIDEO)
+ reg |= (1 << 25);
+ else if (main_lcd->e_interface == DSIM_COMMAND)
+ reg &= ~(1 << 25);
+ else {
+ dev_err(dsim->dev, "this ddi is not MIPI interface.\n");
+ return;
+ }
+
+ /* main lcd */
+ reg |= ((u8) (main_lcd->parameter[DSI_VIDEO_MODE_SEL]) & 0x3) << 26 |
+ ((u8) (main_lcd->parameter[DSI_VIRTUAL_CH_ID]) & 0x3) << 18 |
+ ((u8) (main_lcd->parameter[DSI_FORMAT]) & 0x7) << 12;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+void s5p_dsim_enable_lane(struct dsim_global *dsim, unsigned int lane,
+ unsigned int enable)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_CONFIG);
+
+ if (lane == DSIM_LANE_CLOCK) {
+ if (enable)
+ reg |= (1 << 0);
+ else
+ reg &= ~(1 << 0);
+ } else {
+ if (enable)
+ reg |= (lane << 1);
+ else
+ reg &= ~(lane << 1);
+ }
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+
+void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
+ unsigned int count)
+{
+ unsigned int cfg;
+
+ /* get the data lane number. */
+ cfg = DSIM_NUM_OF_DATA_LANE(count);
+
+ writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+void s5p_dsim_enable_afc(struct dsim_global *dsim, unsigned int enable,
+ unsigned int afc_code)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PHYACCHR);
+
+ if (enable) {
+ reg |= (1 << 14);
+ reg &= ~(0x7 << 5);
+ reg |= (afc_code & 0x7) << 5;
+ } else
+ reg &= ~(1 << 14);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PHYACCHR);
+}
+
+void s5p_dsim_enable_pll_bypass(struct dsim_global *dsim,
+ unsigned int enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(DSIM_PLL_BYPASS_EXTERNAL);
+
+ reg |= enable << DSIM_PLL_BYPASS_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_set_pll_pms(struct dsim_global *dsim, unsigned int p,
+ unsigned int m, unsigned int s)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PLLCTRL);
+
+ reg |= ((p & 0x3f) << 13) | ((m & 0x1ff) << 4) | ((s & 0x7) << 1);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_pll_freq_band(struct dsim_global *dsim, unsigned int freq_band)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x1f << DSIM_FREQ_BAND_SHIFT);
+
+ reg |= ((freq_band & 0x1f) << DSIM_FREQ_BAND_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_pll_freq(struct dsim_global *dsim, unsigned int pre_divider,
+ unsigned int main_divider, unsigned int scaler)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x7ffff << 1);
+
+ reg |= (pre_divider & 0x3f) << 13 | (main_divider & 0x1ff) << 4 |
+ (scaler & 0x7) << 1;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_pll_stable_time(struct dsim_global *dsim,
+ unsigned int lock_time)
+{
+ writel(lock_time, dsim->reg_base + S5P_DSIM_PLLTMR);
+}
+
+void s5p_dsim_enable_pll(struct dsim_global *dsim, unsigned int enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x1 << DSIM_PLL_EN_SHIFT);
+
+ reg |= ((enable & 0x1) << DSIM_PLL_EN_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_set_byte_clock_src(struct dsim_global *dsim, unsigned int src)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(0x3 << DSIM_BYTE_CLK_SRC_SHIFT);
+
+ reg |= ((unsigned int) src) << DSIM_BYTE_CLK_SRC_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_enable_byte_clock(struct dsim_global *dsim,
+ unsigned int enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(1 << DSIM_BYTE_CLKEN_SHIFT);
+
+ reg |= enable << DSIM_BYTE_CLKEN_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_set_esc_clk_prs(struct dsim_global *dsim, unsigned int enable,
+ unsigned int prs_val)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(1 << DSIM_ESC_CLKEN_SHIFT) & ~(0xffff);
+
+ reg |= enable << DSIM_ESC_CLKEN_SHIFT;
+ if (enable)
+ reg |= prs_val;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_enable_esc_clk_on_lane(struct dsim_global *dsim,
+ unsigned int lane_sel, unsigned int enable)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_CLKCTRL);
+
+ if (enable) {
+ if (lane_sel & DSIM_LANE_CLOCK)
+ reg |= 1 << DSIM_LANE_ESC_CLKEN_SHIFT;
+ if (lane_sel & DSIM_LANE_DATA0)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1);
+ if (lane_sel & DSIM_LANE_DATA1)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2);
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3);
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4);
+ } else {
+ if (lane_sel & DSIM_LANE_CLOCK)
+ reg &= ~(1 << DSIM_LANE_ESC_CLKEN_SHIFT);
+ if (lane_sel & DSIM_LANE_DATA0)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1));
+ if (lane_sel & DSIM_LANE_DATA1)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2));
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3));
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4));
+ }
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_force_dphy_stop_state(struct dsim_global *dsim,
+ unsigned int enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_ESCMODE)) &
+ ~(0x1 << DSIM_FORCE_STOP_STATE_SHIFT);
+
+ reg |= ((enable & 0x1) << DSIM_FORCE_STOP_STATE_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_ESCMODE);
+}
+
+unsigned int s5p_dsim_is_lane_state(struct dsim_global *dsim,
+ unsigned int lane)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_STATUS);
+
+ if ((lane & DSIM_LANE_ALL) > DSIM_LANE_CLOCK) { /* all lane state */
+ if ((reg & 0x7ff) ^ (((lane & 0xf) << 4) | (1 << 9)))
+ return DSIM_LANE_STATE_ULPS;
+ else if ((reg & 0x7ff) ^ (((lane & 0xf) << 0) | (1 << 8)))
+ return DSIM_LANE_STATE_STOP;
+ else {
+ dev_err(dsim->dev, "land state is unknown.\n");
+ return -1;
+ }
+ } else if (lane & DSIM_LANE_DATA_ALL) { /* data lane */
+ if (reg & (lane << 4))
+ return DSIM_LANE_STATE_ULPS;
+ else if (reg & (lane << 0))
+ return DSIM_LANE_STATE_STOP;
+ else {
+ dev_err(dsim->dev, "data lane state is unknown.\n");
+ return -1;
+ }
+ } else if (lane & DSIM_LANE_CLOCK) { /* clock lane */
+ if (reg & (1 << 9))
+ return DSIM_LANE_STATE_ULPS;
+ else if (reg & (1 << 8))
+ return DSIM_LANE_STATE_STOP;
+ else if (reg & (1 << 10))
+ return DSIM_LANE_STATE_HS_READY;
+ else {
+ dev_err(dsim->dev, "data lane state is unknown.\n");
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+void s5p_dsim_set_stop_state_counter(struct dsim_global *dsim,
+ unsigned int cnt_val)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_ESCMODE)) &
+ ~(0x7ff << DSIM_STOP_STATE_CNT_SHIFT);
+
+ reg |= ((cnt_val & 0x7ff) << DSIM_STOP_STATE_CNT_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_ESCMODE);
+}
+
+void s5p_dsim_set_bta_timeout(struct dsim_global *dsim, unsigned int timeout)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_TIMEOUT)) &
+ ~(0xff << DSIM_BTA_TOUT_SHIFT);
+
+ reg |= (timeout << DSIM_BTA_TOUT_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_TIMEOUT);
+}
+
+void s5p_dsim_set_lpdr_timeout(struct dsim_global *dsim,
+ unsigned int timeout)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_TIMEOUT)) &
+ ~(0xffff << DSIM_LPDR_TOUT_SHIFT);
+
+ reg |= (timeout << DSIM_LPDR_TOUT_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_TIMEOUT);
+}
+
+void s5p_dsim_set_data_mode(struct dsim_global *dsim, unsigned int data,
+ unsigned int state)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_ESCMODE);
+
+ if (state == DSIM_STATE_HSCLKEN)
+ reg &= ~data;
+ else
+ reg |= data;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_ESCMODE);
+}
+
+void s5p_dsim_enable_hs_clock(struct dsim_global *dsim, unsigned int enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(1 << DSIM_TX_REQUEST_HSCLK_SHIFT);
+
+ reg |= enable << DSIM_TX_REQUEST_HSCLK_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_dp_dn_swap(struct dsim_global *dsim, unsigned int swap_en)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PHYACCHR1);
+
+ reg &= ~(0x3 << 0);
+ reg |= (swap_en & 0x3) << 0;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PHYACCHR1);
+}
+
+void s5p_dsim_hs_zero_ctrl(struct dsim_global *dsim, unsigned int hs_zero)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0xf << 28);
+
+ reg |= ((hs_zero & 0xf) << 28);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_prep_ctrl(struct dsim_global *dsim, unsigned int prep)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x7 << 20);
+
+ reg |= ((prep & 0x7) << 20);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_clear_interrupt(struct dsim_global *dsim, unsigned int int_src)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
+
+ reg |= int_src;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_INTSRC);
+}
+
+unsigned int s5p_dsim_is_pll_stable(struct dsim_global *dsim)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_STATUS);
+
+ return reg & (1 << 31) ? 1 : 0;
+}
+
+unsigned int s5p_dsim_get_fifo_state(struct dsim_global *dsim)
+{
+ unsigned int ret;
+
+ ret = readl(dsim->reg_base + S5P_DSIM_FIFOCTRL) & ~(0x1f);
+
+ return ret;
+}
+
+void s5p_dsim_wr_tx_header(struct dsim_global *dsim,
+ unsigned int di, unsigned int data0, unsigned int data1)
+{
+ unsigned int reg = (data1 << 16) | (data0 << 8) | ((di & 0x3f) << 0);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PKTHDR);
+}
+
+unsigned int _s5p_dsim_get_frame_done_status(struct dsim_global *dsim)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
+
+ return (reg & INTSRC_FRAME_DONE) ? 1 : 0;
+}
+
+void _s5p_dsim_clear_frame_done(struct dsim_global *dsim)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
+
+ writel(reg | INTSRC_FRAME_DONE, dsim->reg_base +
+ S5P_DSIM_INTSRC);
+}
+
+void s5p_dsim_wr_tx_data(struct dsim_global *dsim, unsigned int tx_data)
+{
+ writel(tx_data, dsim->reg_base + S5P_DSIM_PAYLOAD);
+}
diff --git a/drivers/video/s5p_dsim_lowlevel.h b/drivers/video/s5p_dsim_lowlevel.h
new file mode 100644
index 0000000..22f7529
--- /dev/null
+++ b/drivers/video/s5p_dsim_lowlevel.h
@@ -0,0 +1,101 @@
+/* linux/drivers/video/samsung/s5p_dsim_lowlevel.h
+ *
+ * Header file for Samsung MIPI-DSIM lowlevel driver.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _S5P_DSIM_LOWLEVEL_H
+#define _S5P_DSIM_LOWLEVEL_H
+
+struct dsim_global;
+
+extern void s5p_dsim_func_reset(struct dsim_global *dsim);
+extern void s5p_dsim_sw_reset(struct dsim_global *dsim);
+extern void s5p_dsim_set_interrupt_mask(struct dsim_global *dsim,
+ unsigned int mode, unsigned int mask);
+extern void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
+ unsigned int count);
+extern void s5p_dsim_init_fifo_pointer(struct dsim_global *dsim,
+ unsigned int cfg);
+extern void s5p_dsim_set_phy_tunning(struct dsim_global *dsim,
+ unsigned int value);
+extern void s5p_dsim_set_phy_tunning(struct dsim_global *dsim,
+ unsigned int value);
+extern void s5p_dsim_set_main_disp_resol(struct dsim_global *dsim,
+ unsigned int vert_resol, unsigned int hori_resol);
+extern void s5p_dsim_set_main_disp_vporch(struct dsim_global *dsim,
+ unsigned int cmd_allow, unsigned int vfront, unsigned int vback);
+extern void s5p_dsim_set_main_disp_hporch(struct dsim_global *dsim,
+ unsigned int front, unsigned int back);
+extern void s5p_dsim_set_main_disp_sync_area(struct dsim_global *dsim,
+ unsigned int vert, unsigned int hori);
+extern void s5p_dsim_set_sub_disp_resol(struct dsim_global *dsim,
+ unsigned int vert, unsigned int hori);
+extern void s5p_dsim_init_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd_info,
+ struct dsim_lcd_config *sub_lcd_info, struct dsim_config *dsim_info);
+extern void s5p_dsim_display_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd);
+extern void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
+ unsigned int count);
+extern void s5p_dsim_enable_lane(struct dsim_global *dsim, unsigned int lane,
+ unsigned int enable);
+extern void s5p_dsim_enable_afc(struct dsim_global *dsim, unsigned int enable,
+ unsigned int afc_code);
+extern void s5p_dsim_enable_pll_bypass(struct dsim_global *dsim,
+ unsigned int enable);
+extern void s5p_dsim_set_pll_pms(struct dsim_global *dsim, unsigned int p,
+ unsigned int m, unsigned int s);
+extern void s5p_dsim_pll_freq_band(struct dsim_global *dsim,
+ unsigned int freq_band);
+extern void s5p_dsim_pll_freq(struct dsim_global *dsim,
+ unsigned int pre_divider, unsigned int main_divider,
+ unsigned int scaler);
+extern void s5p_dsim_pll_stable_time(struct dsim_global *dsim,
+ unsigned int lock_time);
+extern void s5p_dsim_enable_pll(struct dsim_global *dsim,
+ unsigned int enable);
+extern void s5p_dsim_set_byte_clock_src(struct dsim_global *dsim,
+ unsigned int src);
+extern void s5p_dsim_enable_byte_clock(struct dsim_global *dsim,
+ unsigned int enable);
+extern void s5p_dsim_set_esc_clk_prs(struct dsim_global *dsim,
+ unsigned int enable, unsigned int prs_val);
+extern void s5p_dsim_enable_esc_clk_on_lane(struct dsim_global *dsim,
+ unsigned int lane_sel, unsigned int enable);
+extern void s5p_dsim_force_dphy_stop_state(struct dsim_global *dsim,
+ unsigned int enable);
+extern unsigned int s5p_dsim_is_lane_state(struct dsim_global *dsim,
+ unsigned int lane);
+extern void s5p_dsim_set_stop_state_counter(struct dsim_global *dsim,
+ unsigned int cnt_val);
+extern void s5p_dsim_set_bta_timeout(struct dsim_global *dsim,
+ unsigned int timeout);
+extern void s5p_dsim_set_lpdr_timeout(struct dsim_global *dsim,
+ unsigned int timeout);
+extern void s5p_dsim_set_data_mode(struct dsim_global *dsim,
+ unsigned int data, unsigned int state);
+extern void s5p_dsim_enable_hs_clock(struct dsim_global *dsim,
+ unsigned int enable);
+extern void s5p_dsim_dp_dn_swap(struct dsim_global *dsim,
+ unsigned int swap_en);
+extern void s5p_dsim_hs_zero_ctrl(struct dsim_global *dsim,
+ unsigned int hs_zero);
+extern void s5p_dsim_prep_ctrl(struct dsim_global *dsim, unsigned int prep);
+extern void s5p_dsim_clear_interrupt(struct dsim_global *dsim,
+ unsigned int int_src);
+extern unsigned int s5p_dsim_is_pll_stable(struct dsim_global *dsim);
+extern unsigned int s5p_dsim_get_fifo_state(struct dsim_global *dsim);
+extern unsigned int _s5p_dsim_get_frame_done_status(struct dsim_global *dsim);
+extern void _s5p_dsim_clear_frame_done(struct dsim_global *dsim);
+extern void s5p_dsim_wr_tx_header(struct dsim_global *dsim,
+ unsigned int di, unsigned int data0, unsigned int data1);
+extern void s5p_dsim_wr_tx_data(struct dsim_global *dsim, unsigned int tx_data);
+
+#endif /* _S5P_DSIM_LOWLEVEL_H */
[-- Attachment #1.2: Type: text/html, Size: 95626 bytes --]
[-- Attachment #2: Type: text/plain, Size: 176 bytes --]
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 30+ messages in thread
* [PATCH v1 2/2] S5PV210: Add MIPI-DSI Driver.
@ 2010-07-03 8:42 ` InKi Dae
0 siblings, 0 replies; 30+ messages in thread
From: InKi Dae @ 2010-07-03 8:42 UTC (permalink / raw)
To: linux-arm-kernel
this patch addes MIPI-DSI Driver.
to use this driver, some structures below should be added to machine
specific file.
struct dsim_config
- define clock info, data lane count and video mode info for MIPI-DSI
Controller.
struct dsim_lcd_config
- define interface mode, channel ID, Pixel format and so on.
struct s5p_platform_dsim
- define callbacks for initializing D-PHY, MIPI reset and trigger
releated interfaces of s3c-fb.c file.
struct mipi_ddi_platform_data
- define following callbacks.
- a function for transferring and receiving command data to mipi based
lcd panel.
- a function for getting framedone status of mipi-dsi controller.
- a function for clearing framedone interrupt of mipi-dsi controller.
- a function for checking i80 framedone status of display controller.(fimd)
- a function for triggering to display controller.(fimd)
Signed-off-by: InKi Dae <inki.dae at samsung.com <mailto:p.osciak@samsung.com>>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com
<mailto:kyungmin.park@samsung.com>>
---
diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
index 2a25ab4..f716678 100644
--- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
+++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
@@ -162,6 +162,7 @@
/* MIPI */
#define S5P_MIPI_DPHY_EN (3)
+#define S5P_MIPI_M_RESETN (1 << 1)
/* S5P_DAC_CONTROL */
#define S5P_DAC_ENABLE (1)
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index b1d82cc..3cd43f2 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -49,6 +49,9 @@ obj-$(CONFIG_S3C_DEV_RTC) += dev-rtc.o
obj-$(CONFIG_SAMSUNG_DEV_ADC) += dev-adc.o
obj-$(CONFIG_SAMSUNG_DEV_TS) += dev-ts.o
+# Device setup - MIPI-DSI
+obj-$(CONFIG_S5P_MIPI_DSI) += setup-dsim.o
+
# DMA support
obj-$(CONFIG_S3C_DMA) += dma.o
diff --git a/arch/arm/plat-samsung/include/plat/dsim.h b/arch/arm/plat-samsung/include/plat/dsim.h
new file mode 100644
index 0000000..49d8946
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/dsim.h
@@ -0,0 +1,493 @@
+/* linux/arm/arch/mach-s5pc110/include/mach/dsim.h
+ *
+ * Platform data header for Samsung MIPI-DSIM.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _DSIM_H
+#define _DSIM_H
+
+#include <linux/device.h>
+
+/* h/w configuration */
+#define MIPI_FIN 24000000
+#define DSIM_TIMEOUT_MS 5000
+#define DSIM_NO_OF_INTERRUPT 26
+#define DSIM_PM_STABLE_TIME 10
+
+#define DSIM_TRUE 1
+#define DSIM_FALSE 0
+
+#define DSIM_HEADER_FIFO_SZ 16
+
+enum dsim_interface_type {
+ DSIM_COMMAND = 0,
+ DSIM_VIDEO = 1,
+};
+
+enum dsim_state {
+ DSIM_STATE_RESET = 0,
+ DSIM_STATE_INIT = 1,
+ DSIM_STATE_STOP = 2,
+ DSIM_STATE_HSCLKEN = 3,
+ DSIM_STATE_ULPS = 4,
+};
+
+enum {
+ DSIM_NONE_STATE = 0,
+ DSIM_RESUME_COMPLETE = 1,
+ DSIM_FRAME_DONE = 2,
+};
+
+enum dsim_virtual_ch_no {
+ DSIM_VIRTUAL_CH_0 = 0,
+ DSIM_VIRTUAL_CH_1 = 1,
+ DSIM_VIRTUAL_CH_2 = 2,
+ DSIM_VIRTUAL_CH_3 = 3,
+};
+
+enum dsim_video_mode_type {
+ DSIM_NON_BURST_SYNC_EVENT = 0,
+ DSIM_NON_BURST_SYNC_PULSE = 2,
+ DSIM_BURST = 3,
+ DSIM_NON_VIDEO_MODE = 4,
+};
+
+enum dsim_fifo_state {
+ DSIM_RX_DATA_FULL = (1 << 25),
+ DSIM_RX_DATA_EMPTY = (1 << 24),
+ SFR_HEADER_FULL = (1 << 23),
+ SFR_HEADER_EMPTY = (1 << 22),
+ SFR_PAYLOAD_FULL = (1 << 21),
+ SFR_PAYLOAD_EMPTY = (1 << 20),
+ I80_HEADER_FULL = (1 << 19),
+ I80_HEADER_EMPTY = (1 << 18),
+ I80_PALOAD_FULL = (1 << 17),
+ I80_PALOAD_EMPTY = (1 << 16),
+ SUB_DISP_HEADER_FULL = (1 << 15),
+ SUB_DISP_HEADER_EMPTY = (1 << 14),
+ SUB_DISP_PAYLOAD_FULL = (1 << 13),
+ SUB_DISP_PAYLOAD_EMPTY = (1 << 12),
+ MAIN_DISP_HEADER_FULL = (1 << 11),
+ MAIN_DISP_HEADER_EMPTY = (1 << 10),
+ MAIN_DISP_PAYLOAD_FULL = (1 << 9),
+ MAIN_DISP_PAYLOAD_EMPTY = (1 << 8),
+};
+
+enum dsim_no_of_data_lane {
+ DSIM_DATA_LANE_1 = 0,
+ DSIM_DATA_LANE_2 = 1,
+ DSIM_DATA_LANE_3 = 2,
+ DSIM_DATA_LANE_4 = 3,
+};
+
+enum dsim_byte_clk_src {
+ DSIM_PLL_OUT_DIV8 = 0,
+ DSIM_EXT_CLK_DIV8 = 1,
+ DSIM_EXT_CLK_BYPASS = 2,
+};
+
+enum dsim_lane {
+ DSIM_LANE_DATA0 = (1 << 0),
+ DSIM_LANE_DATA1 = (1 << 1),
+ DSIM_LANE_DATA2 = (1 << 2),
+ DSIM_LANE_DATA3 = (1 << 3),
+ DSIM_LANE_DATA_ALL = 0xf,
+ DSIM_LANE_CLOCK = (1 << 4),
+ DSIM_LANE_ALL = DSIM_LANE_CLOCK | DSIM_LANE_DATA_ALL,
+};
+
+enum dsim_pixel_format {
+ DSIM_CMD_3BPP = 0,
+ DSIM_CMD_8BPP = 1,
+ DSIM_CMD_12BPP = 2,
+ DSIM_CMD_16BPP = 3,
+ DSIM_VID_16BPP_565 = 4,
+ DSIM_VID_18BPP_666PACKED = 5,
+ DSIM_18BPP_666LOOSELYPACKED = 6,
+ DSIM_24BPP_888 = 7,
+};
+
+enum dsim_lane_state {
+ DSIM_LANE_STATE_HS_READY,
+ DSIM_LANE_STATE_ULPS,
+ DSIM_LANE_STATE_STOP,
+ DSIM_LANE_STATE_LPDT,
+};
+
+enum dsim_transfer {
+ DSIM_TRANSFER_NEITHER = 0,
+ DSIM_TRANSFER_BYCPU = (1 << 7),
+ DSIM_TRANSFER_BYLCDC = (1 << 6),
+ DSIM_TRANSFER_BOTH = (0x3 << 6)
+};
+
+enum dsim_lane_change {
+ DSIM_NO_CHANGE = 0,
+ DSIM_DATA_LANE_CHANGE = 1,
+ DSIM_CLOCK_NALE_CHANGE = 2,
+ DSIM_ALL_LANE_CHANGE = 3,
+};
+
+enum dsim_int_src {
+ DSIM_ALL_OF_INTR = 0xffffffff,
+ DSIM_PLL_STABLE = (1 << 31),
+};
+
+enum dsim_data_id {
+ /* short packet types of packet types for command */
+ GEN_SHORT_WR_NO_PARA = 0x03,
+ GEN_SHORT_WR_1_PARA = 0x13,
+ GEN_SHORT_WR_2_PARA = 0x23,
+ GEN_RD_NO_PARA = 0x04,
+ GEN_RD_1_PARA = 0x14,
+ GEN_RD_2_PARA = 0x24,
+ DCS_WR_NO_PARA = 0x05,
+ DCS_WR_1_PARA = 0x15,
+ DCS_RD_NO_PARA = 0x06,
+ SET_MAX_RTN_PKT_SIZE = 0x37,
+
+ /* long packet types of packet types for command */
+ NULL_PKT = 0x09,
+ BLANKING_PKT = 0x19,
+ GEN_LONG_WR = 0x29,
+ DCS_LONG_WR = 0x39,
+
+ /* short packet types of generic command */
+ CMD_OFF = 0x02,
+ CMD_ON = 0x12,
+ SHUT_DOWN = 0x22,
+ TURN_ON = 0x32,
+
+ /* short packet types for video data */
+ VSYNC_START = 0x01,
+ VSYNC_END = 0x11,
+ HSYNC_START = 0x21,
+ HSYNC_END = 0x31,
+ EOT_PKT = 0x08,
+
+ /* long packet types for video data */
+ RGB565_PACKED = 0x0e,
+ RGB666_PACKED = 0x1e,
+ RGB666_LOOSLY = 0x2e,
+ RGB888_PACKED = 0x3e,
+};
+
+/**
+ * struct dsim_config - interface for configuring mipi-dsi controller.
+ *
+ * @auto_flush: enable or disable Auto flush of MD FIFO using VSYNC pulse.
+ * @eot_disable: enable or disable EoT packet in HS mode.
+ * @auto_vertical_cnt: specifies auto vertical count mode.
+ * in Video mode, the vertical line transition uses line counter
+ * configured by VSA, VBP, and Vertical resolution.
+ * If this bit is set to '1', the line counter does not use VSA and VBP
+ * registers.(in command mode, this variable is ignored)
+ * @hse: set horizontal sync event mode.
+ * In VSYNC pulse and Vporch area, MIPI DSI master transfers only HSYNC
+ * start packet to MIPI DSI slave at MIPI DSI spec1.1r02.
+ * this bit transfers HSYNC end packet in VSYNC pulse and Vporch area
+ * (in mommand mode, this variable is ignored)
+ * @hfp: specifies HFP disable mode.
+ * if this variable is set, DSI master ignores HFP area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @hbp: specifies HBP disable mode.
+ * if this variable is set, DSI master ignores HBP area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @hsa: specifies HSA disable mode.
+ * if this variable is set, DSI master ignores HSA area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @e_no_data_lane: specifies data lane count to be used by Master.
+ * @e_byte_clk: select byte clock source. (it must be DSIM_PLL_OUT_DIV8)
+ * DSIM_EXT_CLK_DIV8 and DSIM_EXT_CLK_BYPASSS are not supported.
+ * @pll_stable_time: specifies the PLL Timer for stability of the ganerated
+ * clock(System clock cycle base)
+ * if the timer value goes to 0x00000000, the clock stable bit of status
+ * and interrupt register is set.
+ * @esc_clk: specifies escape clock frequency for getting the escape clock
+ * prescaler value.
+ * @stop_holding_cnt: specifies the interval value between transmitting
+ * read packet(or write "set_tear_on" command) and BTA request.
+ * after transmitting read packet or write "set_tear_on" command,
+ * BTA requests to D-PHY automatically. this counter value specifies
+ * the interval between them.
+ * @bta_timeout: specifies the timer for BTA.
+ * this register specifies time out from BTA request to change
+ * the direction with respect to Tx escape clock.
+ * @rx_timeout: specifies the timer for LP Rx mode timeout.
+ * this register specifies time out on how long RxValid deasserts,
+ * after RxLpdt asserts with respect to Tx escape clock.
+ * - RxValid specifies Rx data valid indicator.
+ * - RxLpdt specifies an indicator that D-PHY is under RxLpdt mode.
+ * - RxValid and RxLpdt specifies signal from D-PHY.
+ * @e_lane_swap: swaps Dp/Dn channel of Clock lane or Data lane.
+ * if this bit is set, Dp and Dn channel would be swapped each other.
+ */
+struct dsim_config {
+ unsigned char auto_flush;
+ unsigned char eot_disable;
+
+ unsigned char auto_vertical_cnt;
+ unsigned char hse;
+ unsigned char hfp;
+ unsigned char hbp;
+ unsigned char hsa;
+
+ enum dsim_no_of_data_lane e_no_data_lane;
+ enum dsim_byte_clk_src e_byte_clk;
+
+ /*
+ * ===========================================
+ * | P | M | S | MHz |
+ * -------------------------------------------
+ * | 3 | 100 | 3 | 100 |
+ * | 3 | 100 | 2 | 200 |
+ * | 3 | 63 | 1 | 252 |
+ * | 4 | 100 | 1 | 300 |
+ * | 4 | 110 | 1 | 330 |
+ * | 12 | 350 | 1 | 350 |
+ * | 3 | 100 | 1 | 400 |
+ * | 4 | 150 | 1 | 450 |
+ * | 3 | 118 | 1 | 472 |
+ * | 12 | 250 | 0 | 500 |
+ * | 4 | 100 | 0 | 600 |
+ * | 3 | 81 | 0 | 648 |
+ * | 3 | 88 | 0 | 704 |
+ * | 3 | 90 | 0 | 720 |
+ * | 3 | 100 | 0 | 800 |
+ * | 12 | 425 | 0 | 850 |
+ * | 4 | 150 | 0 | 900 |
+ * | 12 | 475 | 0 | 950 |
+ * | 6 | 250 | 0 | 1000 |
+ * -------------------------------------------
+ */
+ unsigned char p;
+ unsigned short m;
+ unsigned char s;
+
+ unsigned int pll_stable_time;
+ unsigned long esc_clk;
+
+ unsigned short stop_holding_cnt;
+ unsigned char bta_timeout;
+ unsigned short rx_timeout;
+ enum dsim_video_mode_type e_lane_swap;
+};
+
+/**
+ * struct dsim_lcd_config - interface for configuring mipi-dsi based lcd panel.
+ *
+ * @e_interface: specifies interface to be used.(CPU or RGB interface)
+ * @parameter[0]: specifies virtual channel number
+ * that main or sub diaplsy uses.
+ * @parameter[1]: specifies pixel stream format for main or sub display.
+ * @parameter[2]: selects Burst mode in Video mode.
+ * in Non-burst mode, RGB data area is filled with RGB data and NULL
+ * packets, according to input bandwidth of RGB interface.
+ * In Burst mode, RGB data area is filled with RGB data only.
+ * @lcd_panel_info: pointer for lcd panel specific structure.
+ * this structure specifies width, height, timing and polarity and so on.
+ * @mipi_ddi_pd: pointer for lcd panel platform data.
+ */
+struct dsim_lcd_config {
+ enum dsim_interface_type e_interface;
+ unsigned int parameter[3];
+
+ void *lcd_panel_info;
+ void *mipi_ddi_pd;
+};
+
+struct dsim_global;
+struct fb_info;
+struct regulator;
+
+/**
+ * struct s5p_platform_dsim - interface to platform data for mipi-dsi driver.
+ *
+ * @clk_name: specifies clock name for mipi-dsi.
+ * @lcd_panel_name: specifies lcd panel name registered to mipi-dsi driver.
+ * lcd panel driver searched would be actived.
+ * @mipi_1_1v_name: specifies mipi 1.1v regulator name.
+ * @mipi_1_8v_name: specifies mipi 1.8v regulator name.
+ * @platfrom_rev: specifies platform revision number.
+ * revision number should become 1.
+ * @dsim_config: pointer of structure for configuring mipi-dsi controller.
+ * @dsim_lcd_info: pointer to structure for configuring
+ * mipi-dsi based lcd panel.
+ * @mipi_power: callback pointer for enabling or disabling mipi power.
+ * @part_reset: callback pointer for reseting mipi phy.
+ * @init_d_phy: callback pointer for enabing d_phy of dsi master.
+ * @get_fb_frame_done: callback pointer for getting frame done status of the
+ * display controller(FIMD).
+ * @trigger: callback pointer for triggering display controller(FIMD)
+ * in case of CPU mode.
+ * @delay_for_stabilization: specifies stable time.
+ * this delay needs when writing data on SFR
+ * after mipi mode became LP mode.
+ */
+struct s5p_platform_dsim {
+ char *clk_name;
+ char *mipi_1_1v_name;
+ char *mipi_1_8v_name;
+ char lcd_panel_name[64];
+ unsigned int platform_rev;
+
+ struct dsim_config *dsim_info;
+ struct dsim_lcd_config *dsim_lcd_info;
+
+ unsigned int delay_for_stabilization;
+
+ int (*mipi_power) (struct dsim_global *dsim,
+ struct regulator *p_mipi_1_1v,
+ struct regulator *p_mipi_1_8v, unsigned int enable);
+ int (*part_reset) (struct dsim_global *dsim);
+ int (*init_d_phy) (struct dsim_global *dsim);
+ int (*get_fb_frame_done) (struct fb_info *info);
+ void (*trigger) (struct fb_info *info);
+};
+
+/**
+ * struct dsim_global - global interface for mipi-dsi driver.
+ *
+ * @dev: driver model representation of the device.
+ * @clock: pointer to MIPI-DSI clock of clock framework.
+ * @irq: interrupt number to MIPI-DSI controller.
+ * @reg_base: base address to memory mapped SRF of MIPI-DSI controller.
+ * (virtual address)
+ * @r_mipi_1_1v: pointer to regulator for MIPI 1.1v power.
+ * @r_mipi_1_8v: pointer to regulator for MIPI 1.8v power.
+ * @pd: pointer to MIPI-DSI driver platform data.
+ * @dsim_lcd_info: pointer to structure for configuring
+ * mipi-dsi based lcd panel.
+ * @lcd_panel_info: pointer for lcd panel specific structure.
+ * this structure specifies width, height, timing and polarity and so on.
+ * @mipi_ddi_pd: pointer for lcd panel platform data.
+ * @mipi_drv: pointer to driver structure for mipi-dsi based lcd panel.
+ * @s3cfb_notif: kernel notifier structure to be registered
+ * by device specific framebuffer driver.
+ * this notifier could be used by fb_blank of device specifiec
+ * framebuffer driver.
+ * @state: specifies status of MIPI-DSI controller.
+ * the status could be RESET, INIT, STOP, HSCLKEN and ULPS.
+ * @data_lane: specifiec enabled data lane number.
+ * this variable would be set by driver according to e_no_data_lane
+ * automatically.
+ * @e_clk_src: select byte clock source.
+ * this variable would be set by driver according to e_byte_clock
+ * automatically.
+ * @hs_clk: HS clock rate.
+ * this variable would be set by driver automatically.
+ * @byte_clk: Byte clock rate.
+ * this variable would be set by driver automatically.
+ * @escape_clk: ESCAPE clock rate.
+ * this variable would be set by driver automatically.
+ * @freq_band: indicates Bitclk frequency band for D-PHY global timing.
+ * Serial Clock(=ByteClk X 8) FreqBand[3:0]
+ * ~ 99.99 MHz 0000
+ * 100 ~ 119.99 MHz 0001
+ * 120 ~ 159.99 MHz 0010
+ * 160 ~ 199.99 MHz 0011
+ * 200 ~ 239.99 MHz 0100
+ * 140 ~ 319.99 MHz 0101
+ * 320 ~ 389.99 MHz 0110
+ * 390 ~ 449.99 MHz 0111
+ * 450 ~ 509.99 MHz 1000
+ * 510 ~ 559.99 MHz 1001
+ * 560 ~ 639.99 MHz 1010
+ * 640 ~ 689.99 MHz 1011
+ * 690 ~ 769.99 MHz 1100
+ * 770 ~ 869.99 MHz 1101
+ * 870 ~ 949.99 MHz 1110
+ * 950 ~ 1000 MHz 1111
+ * this variable would be calculated by driver automatically.
+ *
+ * @header_fifo_index: specifies header fifo index.
+ * this variable is not used yet.
+ */
+struct dsim_global {
+ struct device *dev;
+ struct clk *clock;
+ unsigned int irq;
+ void __iomem *reg_base;
+
+ struct regulator *r_mipi_1_1v;
+ struct regulator *r_mipi_1_8v;
+
+ struct s5p_platform_dsim *pd;
+ struct dsim_config *dsim_info;
+ struct dsim_lcd_config *dsim_lcd_info;
+ struct fb_videomode *lcd_panel_info;
+ struct mipi_ddi_platform_data *mipi_ddi_pd;
+ struct mipi_lcd_driver *mipi_drv;
+ struct notifier_block s3cfb_notif;
+
+ unsigned char state;
+ unsigned int data_lane;
+ enum dsim_byte_clk_src e_clk_src;
+ unsigned long hs_clk;
+ unsigned long byte_clk;
+ unsigned long escape_clk;
+ unsigned char freq_band;
+
+ char header_fifo_index[DSIM_HEADER_FIFO_SZ];
+};
+
+/*
+ * driver structure for mipi-dsi based lcd panel.
+ *
+ * this structure should be registered by lcd panel driver.
+ * mipi-dsi driver seeks lcd panel registered through name field
+ * and calls these callback functions in appropriate time.
+ */
+struct mipi_lcd_driver {
+ s8 *name;
+
+ s32 (*init)(struct device *dev);
+ void (*display_on)(struct device *dev);
+ s32 (*set_link)(struct mipi_ddi_platform_data *pd);
+ s32 (*probe)(struct device *dev);
+ s32 (*remove)(struct device *dev);
+ void (*shutdown)(struct device *dev);
+ s32 (*suspend)(struct device *dev);
+ s32 (*resume)(struct device *dev);
+};
+
+/*
+ * register mipi_lcd_driver object defined by lcd panel driver
+ * to mipi-dsi driver.
+ */
+extern int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv);
+
+/* reset MIPI PHY through MIPI PHY CONTROL REGISTER. */
+extern int s5p_dsim_part_reset(struct dsim_global *dsim);
+
+/* enable MIPI D-PHY and DSI Master block. */
+extern int s5p_dsim_init_d_phy(struct dsim_global *dsim);
+
+struct regulator;
+
+/* enable regulators to MIPI-DSI power. */
+extern int s5p_dsim_mipi_power(struct dsim_global *dsim,
+ struct regulator *p_mipi_1_1v, struct regulator *p_mipi_1_8v,
+ unsigned int enable);
+
+/* send commands to mipi based lcd panel. */
+extern int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+
+/* get framedone status of mipi-dsi controller. */
+extern int s5p_dsim_get_frame_done_status(void *dsim_data);
+
+/* clear framedone interrupt of mipi-dsi controller. */
+extern int s5p_dsim_clear_frame_done(void *dsim_data);
+
+/* wrapper function for changing transfer mode. */
+extern int s5p_dsim_change_transfer_mode(unsigned int mode);
+
+#endif /* _DSIM_H */
diff --git a/arch/arm/plat-samsung/include/plat/mipi_ddi.h b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
new file mode 100644
index 0000000..d9a82b7
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/mipi_ddi.h
@@ -0,0 +1,98 @@
+/* linux/arm/arch/mach-s5pc110/include/mach/mipi_ddi.h
+ *
+ * definitions for DDI based MIPI-DSI.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _MIPI_DDI_H
+#define _MIPI_DDI_H
+
+enum mipi_ddi_interface {
+ RGB_IF = 0x4000,
+ I80_IF = 0x8000,
+ YUV_601 = 0x10000,
+ YUV_656 = 0x20000,
+ MIPI_VIDEO = 0x1000,
+ MIPI_COMMAND = 0x2000,
+};
+
+enum mipi_ddi_panel_select {
+ DDI_MAIN_LCD = 0,
+ DDI_SUB_LCD = 1,
+};
+
+enum mipi_ddi_model {
+ S6DR117 = 0,
+};
+
+enum mipi_ddi_parameter {
+ /* DSIM video interface parameter */
+ DSI_VIRTUAL_CH_ID = 0,
+ DSI_FORMAT = 1,
+ DSI_VIDEO_MODE_SEL = 2,
+};
+
+struct lcd_device;
+struct fb_info;
+
+struct mipi_ddi_platform_data {
+ void *dsim_data;
+ /*
+ * it is used for command mode lcd panel and
+ * when all contents of framebuffer in panel module are transfered
+ * to lcd panel it occurs te signal.
+ *
+ * note:
+ * - in case of command mode(cpu mode), it should be triggered only
+ * when TE signal of lcd panel and frame done interrupt of display
+ * controller or mipi controller occurs.
+ */
+ unsigned int te_irq;
+
+ /*
+ * it is used for PM stable time at te interrupt handler and
+ * could be used according to lcd panel characteristic or not.
+ */
+ unsigned int resume_complete;
+
+ int (*lcd_reset) (struct lcd_device *ld);
+ int (*lcd_power_on) (struct lcd_device *ld, int enable);
+ int (*backlight_on) (int enable);
+
+ /* transfer command to lcd panel at LP mode. */
+ int (*cmd_write) (void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+ int (*cmd_read) (void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+ /*
+ * get the status that all screen data have been transferred
+ * to mipi-dsi.
+ */
+ int (*get_dsim_frame_done) (void *dsim_data);
+ int (*clear_dsim_frame_done) (void *dsim_data);
+
+ /*
+ * changes mipi transfer mode to LP or HS mode.
+ *
+ * LP mode needs when some commands like gamma values transfers
+ * to lcd panel.
+ */
+ int (*change_dsim_transfer_mode) (unsigned int mode);
+
+ /* get frame done status of display controller. */
+ int (*get_fb_frame_done) (struct fb_info *info);
+ /* trigger display controller in case of cpu mode. */
+ void (*trigger) (struct fb_info *info);
+
+ unsigned int reset_delay;
+ unsigned int power_on_delay;
+ unsigned int power_off_delay;
+};
+
+#endif /* _MIPI_DDI_H */
diff --git a/arch/arm/plat-samsung/include/plat/regs-dsim.h b/arch/arm/plat-samsung/include/plat/regs-dsim.h
new file mode 100644
index 0000000..dc83089
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/regs-dsim.h
@@ -0,0 +1,281 @@
+/* linux/arch/arm/plat-s5pc11x/include/plat/regs-dsim.h
+ *
+ * Register definition file for Samsung MIPI-DSIM driver
+ *
+ * InKi Dae <inki.dae@samsung.com>, Copyright (c) 2009 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _REGS_DSIM_H
+#define _REGS_DSIM_H
+
+#define S5P_DSIM_STATUS (0x0) /* Status register */
+#define S5P_DSIM_SWRST (0x4) /* Software reset register */
+#define S5P_DSIM_CLKCTRL (0x8) /* Clock control register */
+#define S5P_DSIM_TIMEOUT (0xc) /* Time out register */
+#define S5P_DSIM_CONFIG (0x10) /* Configuration register */
+#define S5P_DSIM_ESCMODE (0x14) /* Escape mode register */
+
+/* Main display image resolution register */
+#define S5P_DSIM_MDRESOL (0x18)
+#define S5P_DSIM_MVPORCH (0x1c) /* Main display Vporch register */
+#define S5P_DSIM_MHPORCH (0x20) /* Main display Hporch register */
+#define S5P_DSIM_MSYNC (0x24) /* Main display sync area register */
+
+/* Sub display image resolution register */
+#define S5P_DSIM_SDRESOL (0x28)
+#define S5P_DSIM_INTSRC (0x2c) /* Interrupt source register */
+#define S5P_DSIM_INTMSK (0x30) /* Interrupt mask register */
+#define S5P_DSIM_PKTHDR (0x34) /* Packet Header FIFO register */
+#define S5P_DSIM_PAYLOAD (0x38) /* Payload FIFO register */
+#define S5P_DSIM_RXFIFO (0x3c) /* Read FIFO register */
+#define S5P_DSIM_FIFOTHLD (0x40) /* FIFO threshold level register */
+#define S5P_DSIM_FIFOCTRL (0x44) /* FIFO status and control register */
+
+/* FIFO memory AC characteristic register */
+#define S5P_DSIM_MEMACCHR (0x48)
+#define S5P_DSIM_PLLCTRL (0x4c) /* PLL control register */
+#define S5P_DSIM_PLLTMR (0x50) /* PLL timer register */
+#define S5P_DSIM_PHYACCHR (0x54) /* D-PHY AC characteristic register */
+#define S5P_DSIM_PHYACCHR1 (0x58) /* D-PHY AC characteristic register1 */
+
+/* DSIM_SWRST */
+#define DSIM_FUNCRST (1 << 16)
+#define DSIM_SWRST (1 << 0)
+
+/* S5P_DSIM_TIMEOUT */
+#define DSIM_LPDR_TOUT_SHIFT (0)
+#define DSIM_BTA_TOUT_SHIFT (16)
+#define DSIM_LPDR_TOUT(x) (((x) & 0xffff) << DSIM_LPDR_TOUT_SHIFT)
+#define DSIM_BTA_TOUT(x) (((x) & 0xff) << DSIM_BTA_TOUT_SHIFT)
+
+/* S5P_DSIM_CLKCTRL */
+#define DSIM_ESC_PRESCALER_SHIFT (0)
+#define DSIM_LANE_ESC_CLKEN_SHIFT (19)
+#define DSIM_BYTE_CLKEN_SHIFT (24)
+#define DSIM_BYTE_CLK_SRC_SHIFT (25)
+#define DSIM_PLL_BYPASS_SHIFT (27)
+#define DSIM_ESC_CLKEN_SHIFT (28)
+#define DSIM_TX_REQUEST_HSCLK_SHIFT (31)
+#define DSIM_ESC_PRESCALER(x) (((x) & 0xffff) << \
+ DSIM_ESC_PRESCALER_SHIFT)
+#define DSIM_LANE_ESC_CLKEN(x) (((x) & 0x1f) << \
+ DSIM_LANE_ESC_CLKEN_SHIFT)
+#define DSIM_BYTE_CLK_ENABLE (1 << DSIM_BYTE_CLKEN_SHIFT)
+#define DSIM_BYTE_CLK_DISABLE (0 << DSIM_BYTE_CLKEN_SHIFT)
+#define DSIM_BYTE_CLKSRC(x) (((x) & 0x3) << DSIM_BYTE_CLK_SRC_SHIFT)
+#define DSIM_PLL_BYPASS_PLL (0 << DSIM_PLL_BYPASS_SHIFT)
+#define DSIM_PLL_BYPASS_EXTERNAL (1 << DSIM_PLL_BYPASS_SHIFT)
+#define DSIM_ESC_CLKEN_ENABLE (1 << DSIM_ESC_CLKEN_SHIFT)
+#define DSIM_ESC_CLKEN_DISABLE (0 << DSIM_ESC_CLKEN_SHIFT)
+
+/* S5P_DSIM_CONFIG */
+#define DSIM_LANE_EN_SHIFT (0)
+#define DSIM_NUM_OF_DATALANE_SHIFT (5)
+#define DSIM_SUB_PIX_FORMAT_SHIFT (8)
+#define DSIM_MAIN_PIX_FORMAT_SHIFT (12)
+#define DSIM_SUB_VC_SHIFT (16)
+#define DSIM_MAIN_VC_SHIFT (18)
+#define DSIM_HSA_MODE_SHIFT (20)
+#define DSIM_HBP_MODE_SHIFT (21)
+#define DSIM_HFP_MODE_SHIFT (22)
+#define DSIM_HSE_MODE_SHIFT (23)
+#define DSIM_AUTO_MODE_SHIFT (24)
+#define DSIM_VIDEO_MODE_SHIFT (25)
+#define DSIM_BURST_MODE_SHIFT (26)
+#define DSIM_SYNC_INFORM_SHIFT (27)
+#define DSIM_EOT_R03_SHIFT (28)
+#define DSIM_LANE_ENx(x) ((1) << x)
+
+/* in case of Gemunus, it should be 0x1. */
+#define DSIM_NUM_OF_DATA_LANE(x) ((x) << 5)
+#define DSIM_SUB_PIX_FORMAT_3BPP (0 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_8BPP (1 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_12BPP (2 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_16BPP (3 << 8) /* command mode only */
+#define DSIM_SUB_PIX_FORMAT_16BPP_RGB (4 << 8) /* video mode only */
+#define DSIM_SUB_PIX_FORMAT_18BPP_PRGB (5 << 8) /* video mode only */
+#define DSIM_SUB_PIX_FORMAT_18BPP_LRGB (6 << 8) /* common */
+#define DSIM_SUB_PIX_FORMAT_24BPP_RGB (7 << 8) /* common */
+#define DSIM_MAIN_PIX_FORMAT_3BPP (0 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_8BPP (1 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_12BPP (2 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_16BPP (3 << 12) /* command mode only */
+#define DSIM_MAIN_PIX_FORMAT_16BPP_RGB (4 << 12) /* video mode only */
+#define DSIM_MAIN_PIX_FORMAT_18BPP_PRGB (5 << 12) /* video mode only */
+#define DSIM_MAIN_PIX_FORMAT_18BPP_LRGB (6 << 12) /* common */
+#define DSIM_MAIN_PIX_FORMAT_24BPP_RGB (7 << 12) /* common */
+
+/* Virtual channel number for sub display */
+#define DSIM_SUB_VC(x) (((x) & 0x3) << 16)
+/* Virtual channel number for main display */
+#define DSIM_MAIN_VC(x) (((x) & 0x3) << 18)
+#define DSIM_HSA_MODE_ENABLE (1 << 20)
+#define DSIM_HSA_MODE_DISABLE (0 << 20)
+#define DSIM_HBP_MODE_ENABLE (1 << 21)
+#define DSIM_HBP_MODE_DISABLE (0 << 21)
+#define DSIM_HFP_MODE_ENABLE (1 << 22)
+#define DSIM_HFP_MODE_DISABLE (0 << 22)
+#define DSIM_HSE_MODE_ENABLE (1 << 23)
+#define DSIM_HSE_MODE_DISABLE (0 << 23)
+#define DSIM_AUTO_MODE (1 << 24)
+#define DSIM_CONFIGURATION_MODE (0 << 24)
+#define DSIM_VIDEO_MODE (1 << 25)
+#define DSIM_COMMAND_MODE (0 << 25)
+#define DSIM_BURST_MODE (1 << 26)
+#define DSIM_NON_BURST_MODE (0 << 26)
+#define DSIM_SYNC_INFORM_PULSE (1 << 27)
+#define DSIM_SYNC_INFORM_EVENT (0 << 27)
+/* enable EoT packet generation for V1.01r11 */
+#define DSIM_EOT_R03_ENABLE (0 << 28)
+/* disable EoT packet generation for V1.01r03 */
+#define DSIM_EOT_R03_DISABLE (1 << 28)
+
+/* S5P_DSIM_ESCMODE */
+#define DSIM_STOP_STATE_CNT_SHIFT (21)
+#define DSIM_STOP_STATE_CNT(x) (((x) & 0x3ff) << \
+ DSIM_STOP_STATE_CNT_SHIFT)
+#define DSIM_FORCE_STOP_STATE_SHIFT (20)
+#define DSIM_FORCE_BTA_SHIFT (16)
+#define DSIM_CMD_LPDT_HS_MODE (0 << 7)
+#define DSIM_CMD_LPDT_LP_MODE (1 << 7)
+#define DSIM_TX_LPDT_HS_MODE (0 << 6)
+#define DSIM_TX_LPDT_LP_MODE (1 << 6)
+#define DSIM_TX_TRIGGER_RST_SHIFT (4)
+#define DSIM_TX_UIPS_DAT_SHIFT (3)
+#define DSIM_TX_UIPS_EXIT_SHIFT (2)
+#define DSIM_TX_UIPS_CLK_SHIFT (1)
+#define DSIM_TX_UIPS_CLK_EXIT_SHIFT (0)
+
+/* S5P_DSIM_MDRESOL */
+#define DSIM_MAIN_STAND_BY (1 << 31)
+#define DSIM_MAIN_NOT_READY (0 << 31)
+#define DSIM_MAIN_VRESOL(x) (((x) & 0x7ff) << 16)
+#define DSIM_MAIN_HRESOL(x) (((x) & 0X7ff) << 0)
+
+/* S5P_DSIM_MVPORCH */
+#define DSIM_CMD_ALLOW_SHIFT (28)
+#define DSIM_STABLE_VFP_SHIFT (16)
+#define DSIM_MAIN_VBP_SHIFT (0)
+#define DSIM_CMD_ALLOW_MASK (0xf << DSIM_CMD_ALLOW_SHIFT)
+#define DSIM_STABLE_VFP_MASK (0x7ff << DSIM_STABLE_VFP_SHIFT)
+#define DSIM_MAIN_VBP_MASK (0x7ff << DSIM_MAIN_VBP_SHIFT)
+#define DSIM_CMD_ALLOW(x) (((x) & 0xf) << DSIM_CMD_ALLOW_SHIFT)
+#define DSIM_STABLE_VFP(x) (((x) & 0x7ff) << DSIM_STABLE_VFP_SHIFT)
+#define DSIM_MAIN_VBP(x) (((x) & 0x7ff) << DSIM_MAIN_VBP_SHIFT)
+
+/* S5P_DSIM_MHPORCH */
+#define DSIM_MAIN_HFP_SHIFT (16)
+#define DSIM_MAIN_HBP_SHIFT (0)
+#define DSIM_MAIN_HFP_MASK ((0xffff) << DSIM_MAIN_HFP_SHIFT)
+#define DSIM_MAIN_HBP_MASK ((0xffff) << DSIM_MAIN_HBP_SHIFT)
+#define DSIM_MAIN_HFP(x) (((x) & 0xffff) << DSIM_MAIN_HFP_SHIFT)
+#define DSIM_MAIN_HBP(x) (((x) & 0xffff) << DSIM_MAIN_HBP_SHIFT)
+
+/* S5P_DSIM_MSYNC */
+#define DSIM_MAIN_VSA_SHIFT (22)
+#define DSIM_MAIN_HSA_SHIFT (0)
+#define DSIM_MAIN_VSA_MASK ((0x3ff) << DSIM_MAIN_VSA_SHIFT)
+#define DSIM_MAIN_HSA_MASK ((0xffff) << DSIM_MAIN_HSA_SHIFT)
+#define DSIM_MAIN_VSA(x) (((x) & 0x3ff) << DSIM_MAIN_VSA_SHIFT)
+#define DSIM_MAIN_HSA(x) (((x) & 0xffff) << DSIM_MAIN_HSA_SHIFT)
+
+/* S5P_DSIM_SDRESOL */
+#define DSIM_SUB_STANDY_SHIFT (31)
+#define DSIM_SUB_VRESOL_SHIFT (16)
+#define DSIM_SUB_HRESOL_SHIFT (0)
+#define DSIM_SUB_STANDY_MASK ((0x1) << DSIM_SUB_STANDY_SHIFT)
+#define DSIM_SUB_VRESOL_MASK ((0x7ff) << DSIM_SUB_VRESOL_SHIFT)
+#define DSIM_SUB_HRESOL_MASK ((0x7ff) << DSIM_SUB_HRESOL_SHIFT)
+#define DSIM_SUB_STANDY (1 << DSIM_SUB_STANDY_SHIFT)
+#define DSIM_SUB_NOT_READY (0 << DSIM_SUB_STANDY_SHIFT)
+#define DSIM_SUB_VRESOL(x) (((x) & 0x7ff) << DSIM_SUB_VRESOL_SHIFT)
+#define DSIM_SUB_HRESOL(x) (((x) & 0x7ff) << DSIM_SUB_HRESOL_SHIFT)
+
+/* S5P_DSIM_INTSRC */
+#define INTSRC_ERR_CONTENT_LP1 (1 << 0)
+#define INTSRC_ERR_CONTENT_LP0 (1 << 1)
+#define INTSRC_ERR_CONTROL0 (1 << 2)
+#define INTSRC_ERR_CONTROL1 (1 << 3)
+#define INTSRC_ERR_CONTROL2 (1 << 4)
+#define INTSRC_ERR_CONTROL3 (1 << 5)
+#define INTSRC_ERR_SYNC0 (1 << 6)
+#define INTSRC_ERR_SYNC1 (1 << 7)
+#define INTSRC_ERR_SYNC2 (1 << 8)
+#define INTSRC_ERR_SYNC3 (1 << 9)
+#define INTSRC_ERR_ESC0 (1 << 10)
+#define INTSRC_ERR_ESC1 (1 << 11)
+#define INTSRC_ERR_ESC2 (1 << 12)
+#define INTSRC_ERR_ESC3 (1 << 13)
+#define INTSRC_ERR_RX_CRC (1 << 14)
+#define INTSRC_ERR_RX_ECC (1 << 15)
+#define INTSRC_RX_ACK (1 << 16)
+#define INTSRC_RX_TE (1 << 17)
+#define INTSRC_RX_DAT_DONE (1 << 18)
+#define INTSRC_TA_TOUT (1 << 20)
+#define INTSRC_LPDR_TOUT (1 << 21)
+#define INTSRC_FRAME_DONE (1 << 24)
+#define INTSRC_BUS_TURN_OVER (1 << 25)
+#define INTSRC_SYNC_OVERRIDE (1 << 28)
+#define INTSRC_SFR_FIFO_EMPTY (1 << 29)
+#define INTSRC_SW_RST_RELEASE (1 << 30)
+#define INTSRC_PLL_STABLE (1 << 31)
+
+/* S5P_DSIM_INTMSK */
+#define INTMSK_ERR_CONTENT_LP1 (1 << 0)
+#define INTMSK_ERR_CONTENT_LP0 (1 << 1)
+#define INTMSK_ERR_CONTROL0 (1 << 2)
+#define INTMSK_ERR_CONTROL1 (1 << 3)
+#define INTMSK_ERR_CONTROL2 (1 << 4)
+#define INTMSK_ERR_CONTROL3 (1 << 5)
+#define INTMSK_ERR_SYNC0 (1 << 6)
+#define INTMSK_ERR_SYNC1 (1 << 7)
+#define INTMSK_ERR_SYNC2 (1 << 8)
+#define INTMSK_ERR_SYNC3 (1 << 9)
+#define INTMSK_ERR_ESC0 (1 << 10)
+#define INTMSK_ERR_ESC1 (1 << 11)
+#define INTMSK_ERR_ESC2 (1 << 12)
+#define INTMSK_ERR_ESC3 (1 << 13)
+#define INTMSK_ERR_RX_CRC (1 << 14)
+#define INTMSK_ERR_RX_ECC (1 << 15)
+#define INTMSK_RX_ACK (1 << 16)
+#define INTMSK_RX_TE (1 << 17)
+#define INTMSK_RX_DAT_DONE (1 << 18)
+#define INTMSK_TA_TOUT (1 << 20)
+#define INTMSK_LPDR_TOUT (1 << 21)
+#define INTMSK_FRAME_DONE (1 << 24)
+#define INTMSK_BUS_TURN_OVER (1 << 25)
+#define INTMSK_SFR_FIFO_EMPTY (1 << 29)
+#define INTMSK_SW_RST_RELEASE (1 << 30)
+#define INTMSK_PLL_STABLE (1 << 31)
+
+/* S5P_DSIM_PKTHDR */
+#define DSIM_PACKET_HEADER_DI(x) (((x) & 0xff) << 0)
+/* Word count lower byte for long packet */
+#define DSIM_PACKET_HEADER_DAT0(x) (((x) & 0xff) << 8)
+/* Word count upper byte for long packet */
+#define DSIM_PACKET_HEADER_DAT1(x) (((x) & 0xff) << 16)
+
+/* S5P_DSIM_FIFOCTRL */
+#define DSIM_RX_FIFO (1 << 4)
+#define DSIM_TX_SFR_FIFO (1 << 3)
+#define DSIM_I80_FIFO (1 << 2)
+#define DSIM_SUB_DISP_FIFO (1 << 1)
+#define DSIM_MAIN_DISP_FIFO (1 << 0)
+
+/* S5P_DSIM_PHYACCHR */
+#define DSIM_AFC_CTL(x) (((x) & 0x7) << 5)
+#define DSIM_AFC_ENABLE (1 << 14)
+#define DSIM_AFC_DISABLE (0 << 14)
+
+/* S5P_DSIM_PLLCTRL */
+#define DSIM_PMS_SHIFT (1)
+#define DSIM_PLL_EN_SHIFT (23)
+#define DSIM_FREQ_BAND_SHIFT (24)
+#define DSIM_PMS(x) (((x) & 0x7ffff) << DSIM_PMS_SHIFT)
+#define DSIM_FREQ_BAND(x) (((x) & 0xf) << DSIM_FREQ_BAND_SHIFT)
+
+#endif /* _REGS_DSIM_H */
diff --git a/arch/arm/plat-samsung/setup-dsim.c b/arch/arm/plat-samsung/setup-dsim.c
new file mode 100644
index 0000000..874efa0
--- /dev/null
+++ b/arch/arm/plat-samsung/setup-dsim.c
@@ -0,0 +1,144 @@
+/*
+ * S5PC110 MIPI-DSIM driver.
+ *
+ * Author: InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/regulator/consumer.h>
+
+#include <mach/map.h>
+#include <mach/regs-clock.h>
+
+#include <plat/dsim.h>
+#include <plat/clock.h>
+#include <plat/regs-dsim.h>
+
+static int s5p_dsim_enable_d_phy(struct dsim_global *dsim, unsigned int enable)
+{
+ unsigned int reg;
+
+ WARN_ON(dsim == NULL);
+
+ reg = readl(S5P_MIPI_CONTROL) & ~(1 << 0);
+ reg |= (enable << 0);
+ writel(reg, S5P_MIPI_CONTROL);
+
+ dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
+
+ return 0;
+}
+
+static int s5p_dsim_enable_dsi_master(struct dsim_global *dsim,
+ unsigned int enable)
+{
+ unsigned int reg;
+
+ WARN_ON(dsim == NULL);
+
+ reg = readl(S5P_MIPI_CONTROL) & ~(1 << 2);
+ reg |= (enable << 2);
+ writel(reg, S5P_MIPI_CONTROL);
+
+ dev_dbg(dsim->dev, "%s : %x\n", __func__, reg);
+
+ return 0;
+}
+
+int s5p_dsim_part_reset(struct dsim_global *dsim)
+{
+ WARN_ON(dsim == NULL);
+
+ writel(S5P_MIPI_M_RESETN, S5P_MIPI_PHY_CON0);
+
+ dev_dbg(dsim->dev, "%s\n", __func__);
+
+ return 0;
+}
+
+int s5p_dsim_init_d_phy(struct dsim_global *dsim)
+{
+ WARN_ON(dsim == NULL);
+
+ /**
+ * DPHY and Master block must be enabled at the system initialization
+ * step before data access from/to DPHY begins.
+ */
+ s5p_dsim_enable_d_phy(dsim, 1);
+
+ s5p_dsim_enable_dsi_master(dsim, 1);
+
+ dev_dbg(dsim->dev, "%s\n", __func__);
+
+ return 0;
+}
+
+int s5p_dsim_mipi_power(struct dsim_global *dsim, struct regulator *p_mipi_1_1v,
+ struct regulator *p_mipi_1_8v, unsigned int enable)
+{
+ int ret = -1;
+
+ WARN_ON(dsim == NULL);
+
+ if (IS_ERR(p_mipi_1_1v) || IS_ERR(p_mipi_1_8v)) {
+ dev_err(dsim->dev, "p_mipi_1_1v or p_mipi_1_8v is NULL.\n");
+ return -EINVAL;
+ }
+
+ if (enable) {
+ if (p_mipi_1_1v)
+ ret = regulator_enable(p_mipi_1_1v);
+
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to enable regulator mipi_1_1v.\n");
+ return ret;
+ }
+
+ if (p_mipi_1_8v)
+ ret = regulator_enable(p_mipi_1_8v);
+
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to enable regulator mipi_1_8v.\n");
+ return ret;
+ }
+ } else {
+ if (p_mipi_1_1v)
+ ret = regulator_force_disable(p_mipi_1_1v);
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to disable regulator mipi_1_1v.\n");
+ return ret;
+ }
+
+ if (p_mipi_1_8v)
+ ret = regulator_force_disable(p_mipi_1_8v);
+ if (ret < 0) {
+ dev_err(dsim->dev,
+ "failed to disable regulator mipi_1_8v.\n");
+ return ret;
+ }
+ }
+
+ return ret;
+}
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 3d94a14..c916ac1 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1930,7 +1930,7 @@ config FB_TMIO_ACCELL
config FB_S3C
tristate "Samsung S3C framebuffer support"
- depends on FB && ARCH_S3C64XX
+ depends on FB && (ARCH_S3C64XX || ARCH_S5PV210)
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -1975,6 +1975,13 @@ config FB_S3C2410_DEBUG
Turn on debugging messages. Note that you can set/unset at run time
through sysfs
+config S5P_MIPI_DSI
+ tristate "Samsung SoC MIPI-DSI support."
+ depends on FB_S3C && ARCH_S5PV210
+ default n
+ ---help---
+ This enables support for MIPI-DSI device.
+
config FB_NUC900
bool "NUC900 LCD framebuffer support"
depends on FB && ARCH_W90X900
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index ddc2af2..d841433 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -115,6 +115,8 @@ obj-$(CONFIG_FB_SH7760) += sh7760fb.o
obj-$(CONFIG_FB_IMX) += imxfb.o
obj-$(CONFIG_FB_S3C) += s3c-fb.o
obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o
+obj-$(CONFIG_S5P_MIPI_DSI) += s5p-dsim.o s5p_dsim_common.o \
+ s5p_dsim_lowlevel.o
obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o
obj-$(CONFIG_FB_COBALT) += cobalt_lcdfb.o
obj-$(CONFIG_FB_PNX4008_DUM) += pnx4008/
diff --git a/drivers/video/s5p-dsim.c b/drivers/video/s5p-dsim.c
new file mode 100644
index 0000000..1ffc1e0
--- /dev/null
+++ b/drivers/video/s5p-dsim.c
@@ -0,0 +1,471 @@
+/* linux/drivers/video/samsung/s5p-dsim.c
+ *
+ * Samsung MIPI-DSIM driver.
+ *
+ * InKi Dae, <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/ctype.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/memory.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/kthread.h>
+#include <linux/regulator/consumer.h>
+#include <linux/notifier.h>
+
+#include <plat/fb.h>
+#include <plat/regs-dsim.h>
+#include <plat/dsim.h>
+#include <plat/mipi_ddi.h>
+
+#include <mach/map.h>
+
+#include "s5p_dsim_common.h"
+
+struct mipi_lcd_info {
+ struct list_head list;
+ struct mipi_lcd_driver *mipi_drv;
+};
+
+static LIST_HEAD(lcd_info_list);
+static DEFINE_MUTEX(mipi_lock);
+
+struct dsim_global dsim;
+
+struct s5p_platform_dsim *to_dsim_plat(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ return (struct s5p_platform_dsim *)pdev->dev.platform_data;
+}
+
+/*
+ * notifier callback function for fb_blank
+ * - this function would be called by device specific fb_blank.
+ */
+static int s5p_dsim_notifier_callback(struct notifier_block *self,
+ unsigned long event, void *data)
+{
+ switch (event) {
+ case FB_BLANK_UNBLANK:
+ case FB_BLANK_NORMAL:
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v,
+ dsim.r_mipi_1_8v, 1);
+
+ clk_enable(dsim.clock);
+
+ if (dsim.mipi_drv->resume)
+ dsim.mipi_drv->resume(dsim.dev);
+
+ s5p_dsim_init_dsim(&dsim);
+ s5p_dsim_init_link(&dsim);
+
+ s5p_dsim_set_hs_enable(&dsim);
+ s5p_dsim_set_data_transfer_mode(&dsim,
+ DSIM_TRANSFER_BYCPU, 1);
+
+ /* it needs delay for stabilization */
+ mdelay(dsim.pd->delay_for_stabilization);
+
+ if (dsim.mipi_drv->init)
+ dsim.mipi_drv->init(dsim.dev);
+ else
+ dev_warn(dsim.dev, "init func is null.\n");
+
+ s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
+
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
+ dsim.mipi_ddi_pd->resume_complete = 1;
+
+ dev_dbg(dsim.dev, "FB_BLANK_NORMAL or UNBLANK.\n");
+
+ break;
+ case FB_BLANK_POWERDOWN:
+ dsim.mipi_ddi_pd->resume_complete = 0;
+
+ if (dsim.mipi_drv->suspend)
+ dsim.mipi_drv->suspend(dsim.dev);
+
+ clk_disable(dsim.clock);
+
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v,
+ dsim.r_mipi_1_8v, 0);
+
+ dev_dbg(dsim.dev, "FB_BLANK_POWERDOWN.\n");
+ break;
+ default:
+ dev_warn(dsim.dev, "unknown FB_BLANK command.\n");
+ break;
+ }
+
+ return 0;
+}
+
+static int s5p_dsim_register_notif(struct device *dev)
+{
+ memset(&dsim.s3cfb_notif, 0, sizeof(struct notifier_block));
+ dsim.s3cfb_notif.notifier_call = s5p_dsim_notifier_callback;
+
+ return 0/*s3cfb_register_client(&dsim.s3cfb_notif)*/;
+}
+
+static irqreturn_t s5p_dsim_interrupt_handler(int irq, void *dev_id)
+{
+ disable_irq(irq);
+
+ /* additional work. */
+
+ enable_irq(irq);
+
+ return IRQ_HANDLED;
+}
+
+int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv)
+{
+ struct mipi_lcd_info *lcd_info = NULL;
+
+ lcd_info = kmalloc(sizeof(struct mipi_lcd_info), GFP_KERNEL);
+ if (lcd_info == NULL)
+ return -ENOMEM;
+
+ lcd_info->mipi_drv = kmalloc(sizeof(struct mipi_lcd_driver),
+ GFP_KERNEL);
+ if (lcd_info->mipi_drv == NULL)
+ return -ENOMEM;
+
+
+ memcpy(lcd_info->mipi_drv, lcd_drv, sizeof(struct mipi_lcd_driver));
+
+ mutex_lock(&mipi_lock);
+ list_add_tail(&lcd_info->list, &lcd_info_list);
+ mutex_unlock(&mipi_lock);
+
+ dev_dbg(dsim.dev, "registered panel driver(%s) to mipi-dsi driver.\n",
+ lcd_drv->name);
+
+ return 0;
+}
+
+/*
+ * This function is wrapper for changing transfer mode.
+ * It is used to in panel driver before and after changing gamma value.
+ */
+int s5p_dsim_change_transfer_mode(unsigned int mode)
+{
+ if (mode < 0 || mode > 1) {
+ dev_err(dsim.dev, "mode range should be 0 or 1.\n");
+ return -EFAULT;
+ }
+
+ if (mode == 0)
+ s5p_dsim_set_data_transfer_mode(&dsim,
+ DSIM_TRANSFER_BYCPU, mode);
+ else
+ s5p_dsim_set_data_transfer_mode(&dsim,
+ DSIM_TRANSFER_BYLCDC, mode);
+
+ return 0;
+}
+
+struct mipi_lcd_driver *scan_mipi_driver(const char *name)
+{
+ struct mipi_lcd_info *lcd_info;
+ struct mipi_lcd_driver *mipi_drv = NULL;
+
+ mutex_lock(&mipi_lock);
+
+ dev_dbg(dsim.dev, "find lcd panel driver(%s).\n",
+ name);
+
+ list_for_each_entry(lcd_info, &lcd_info_list, list) {
+ mipi_drv = lcd_info->mipi_drv;
+
+ if ((strcmp(mipi_drv->name, name)) == 0) {
+ mutex_unlock(&mipi_lock);
+ dev_dbg(dsim.dev, "found!!!(%s).\n", mipi_drv->name);
+ return mipi_drv;
+ }
+ }
+
+ dev_warn(dsim.dev, "failed to find lcd panel driver(%s).\n",
+ name);
+
+ mutex_unlock(&mipi_lock);
+
+ return NULL;
+}
+
+static int s5p_dsim_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ int ret = -1;
+
+ dsim.pd = to_dsim_plat(&pdev->dev);
+ dsim.dev = &pdev->dev;
+
+ /* set dsim config data, dsim lcd config data and lcd panel data. */
+ dsim.dsim_info = dsim.pd->dsim_info;
+ dsim.dsim_lcd_info = dsim.pd->dsim_lcd_info;
+ dsim.lcd_panel_info =
+ (struct fb_videomode *) dsim.dsim_lcd_info->lcd_panel_info;
+ dsim.mipi_ddi_pd =
+ (struct mipi_ddi_platform_data *)
+ dsim.dsim_lcd_info->mipi_ddi_pd;
+
+ dsim.mipi_ddi_pd->resume_complete = 0;
+
+ WARN_ON(dsim.pd->mipi_1_1v_name == NULL);
+
+ dsim.r_mipi_1_1v = regulator_get(&pdev->dev, dsim.pd->mipi_1_1v_name);
+ if (IS_ERR(dsim.r_mipi_1_1v)) {
+ dev_err(&pdev->dev, "failed to get regulator %s.\n",
+ dsim.pd->mipi_1_1v_name);
+ goto regulator_get_err;
+ }
+
+ WARN_ON(dsim.pd->mipi_1_8v_name == NULL);
+
+ dsim.r_mipi_1_8v = regulator_get(&pdev->dev, dsim.pd->mipi_1_8v_name);
+ if (IS_ERR(dsim.r_mipi_1_8v)) {
+ dev_err(&pdev->dev, "failed to get regulator %s.\n",
+ dsim.pd->mipi_1_8v_name);
+ goto regulator_get_err;
+ }
+
+ /* clock */
+ dsim.clock = clk_get(&pdev->dev, dsim.pd->clk_name);
+ if (IS_ERR(dsim.clock)) {
+ dev_err(&pdev->dev, "failed to get dsim clock source\n");
+ return -EINVAL;
+ }
+
+ clk_enable(dsim.clock);
+
+ /* io memory */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to get io memory region\n");
+ ret = -EINVAL;
+ goto err_clk_disable;
+ }
+
+ /* request mem region */
+ res = request_mem_region(res->start, resource_size(res), pdev->name);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to request io memory region\n");
+ ret = -EINVAL;
+ goto err_clk_disable;
+ }
+
+ /* ioremap for register block */
+ dsim.reg_base = ioremap(res->start, resource_size(res));
+ if (!dsim.reg_base) {
+ dev_err(&pdev->dev, "failed to remap io region\n");
+ ret = -EINVAL;
+ goto err_clk_disable;
+ }
+
+ /* it is used for MIPI-DSI based lcd panel driver. */
+ dsim.mipi_ddi_pd->dsim_data = (void *)&dsim;
+
+ /*
+ * it uses frame done interrupt handler
+ * only in case of MIPI Video mode.
+ */
+ if (dsim.dsim_lcd_info->e_interface == DSIM_VIDEO) {
+ dsim.irq = platform_get_irq(pdev, 0);
+ if (request_irq(dsim.irq, s5p_dsim_interrupt_handler,
+ IRQF_DISABLED, "mipi-dsi", &dsim)) {
+ dev_err(&pdev->dev, "request_irq failed.\n");
+ goto err_trigger_irq;
+ }
+ }
+
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v,
+ dsim.r_mipi_1_8v, 1);
+ else {
+ dev_err(&pdev->dev, "mipi_power is NULL.\n");
+ goto mipi_power_err;
+ }
+
+ /* find lcd panel driver registered to mipi-dsi driver. */
+ dsim.mipi_drv = scan_mipi_driver(dsim.pd->lcd_panel_name);
+ if (dsim.mipi_drv == NULL) {
+ dev_err(&pdev->dev, "mipi_drv is NULL.\n");
+ goto mipi_drv_err;
+ }
+
+ /* set lcd panel driver link */
+ ret = dsim.mipi_drv->set_link(dsim.mipi_ddi_pd);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to set link.\n");
+ goto mipi_drv_err;
+ }
+
+ dsim.mipi_drv->probe(&pdev->dev);
+
+ s5p_dsim_init_dsim(&dsim);
+ s5p_dsim_init_link(&dsim);
+
+ s5p_dsim_set_hs_enable(&dsim);
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
+
+ /* it needs delay for stabilization */
+ mdelay(dsim.pd->delay_for_stabilization);
+
+ /* initialize lcd panel */
+ if (dsim.mipi_drv->init)
+ dsim.mipi_drv->init(&pdev->dev);
+ else
+ dev_warn(&pdev->dev, "init func is null.\n");
+
+ if (dsim.mipi_drv->display_on)
+ dsim.mipi_drv->display_on(&pdev->dev);
+ else
+ dev_warn(&pdev->dev, "display_on func is null.\n");
+
+ s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
+
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
+
+ s5p_dsim_register_notif(&pdev->dev);
+
+ /* in case of command mode, trigger. */
+ if (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) {
+ if (dsim.pd->trigger)
+ dsim.pd->trigger(registered_fb[0]);
+ else
+ dev_warn(&pdev->dev, "trigger is null.\n");
+ }
+
+ dev_info(&pdev->dev, "mipi-dsi driver(%s mode) has been probed.\n",
+ (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) ?
+ "CPU" : "RGB");
+
+ return 0;
+
+err_trigger_irq:
+mipi_drv_err:
+ dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v, dsim.r_mipi_1_8v, 0);
+
+mipi_power_err:
+ iounmap((void __iomem *) dsim.reg_base);
+
+err_clk_disable:
+ clk_disable(dsim.clock);
+
+regulator_get_err:
+
+ return ret;
+
+}
+
+static int s5p_dsim_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+#ifdef CONFIG_PM
+int s5p_dsim_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ dsim.mipi_ddi_pd->resume_complete = 0;
+
+ if (dsim.mipi_drv->suspend)
+ dsim.mipi_drv->suspend(&pdev->dev);
+
+ clk_disable(dsim.clock);
+
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v,
+ dsim.r_mipi_1_8v, 0);
+
+ return 0;
+}
+
+int s5p_dsim_resume(struct platform_device *pdev)
+{
+ if (dsim.pd->mipi_power)
+ dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v,
+ dsim.r_mipi_1_8v, 1);
+
+ clk_enable(dsim.clock);
+
+ if (dsim.mipi_drv->resume)
+ dsim.mipi_drv->resume(&pdev->dev);
+
+ s5p_dsim_init_dsim(&dsim);
+ s5p_dsim_init_link(&dsim);
+
+ s5p_dsim_set_hs_enable(&dsim);
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1);
+
+ /* it needs delay for stabilization */
+ mdelay(dsim.pd->delay_for_stabilization);
+
+ /* initialize lcd panel */
+ if (dsim.mipi_drv->init)
+ dsim.mipi_drv->init(&pdev->dev);
+ else
+ dev_warn(&pdev->dev, "init func is null.\n");
+
+ s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL);
+
+ s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1);
+
+ dsim.mipi_ddi_pd->resume_complete = 1;
+
+ return 0;
+}
+#else
+#define s5p_dsim_suspend NULL
+#define s5p_dsim_resume NULL
+#endif
+
+static struct platform_driver s5p_dsim_driver = {
+ .probe = s5p_dsim_probe,
+ .remove = s5p_dsim_remove,
+ .suspend = s5p_dsim_suspend,
+ .resume = s5p_dsim_resume,
+ .driver = {
+ .name = "s5p-dsim",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int s5p_dsim_register(void)
+{
+ platform_driver_register(&s5p_dsim_driver);
+
+ return 0;
+}
+
+static void s5p_dsim_unregister(void)
+{
+ platform_driver_unregister(&s5p_dsim_driver);
+}
+
+module_init(s5p_dsim_register);
+module_exit(s5p_dsim_unregister);
+
+MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
+MODULE_DESCRIPTION("Samusung MIPI-DSIM driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/s5p_dsim_common.c b/drivers/video/s5p_dsim_common.c
new file mode 100644
index 0000000..2140b5d
--- /dev/null
+++ b/drivers/video/s5p_dsim_common.c
@@ -0,0 +1,689 @@
+/* linux/drivers/video/samsung/s5p_dsim_common.c
+ *
+ * Samsung MIPI-DSIM common driver.
+ *
+ * InKi Dae, <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/fb.h>
+#include <linux/ctype.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/memory.h>
+#include <linux/delay.h>
+#include <linux/kthread.h>
+
+#include <plat/fb.h>
+#include <plat/regs-dsim.h>
+
+#include <mach/map.h>
+#include <plat/dsim.h>
+#include <plat/mipi_ddi.h>
+
+#include "s5p_dsim_lowlevel.h"
+
+static unsigned int dpll_table[15] = {
+ 100, 120, 170, 220, 270,
+ 320, 390, 450, 510, 560,
+ 640, 690, 770, 870, 950 };
+
+static void s5p_dsim_long_data_wr(struct dsim_global *dsim, unsigned int data0,
+ unsigned int data1)
+{
+ unsigned int data_cnt = 0, payload = 0;
+
+ WARN_ON(dsim == NULL);
+
+ /* in case that data count is more then 4 */
+ for (data_cnt = 0; data_cnt < data1; data_cnt += 4) {
+ /*
+ * after sending 4bytes per one time,
+ * send remainder data less then 4.
+ */
+ if ((data1 - data_cnt) < 4) {
+ if ((data1 - data_cnt) == 3) {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
+ (*(u8 *)(data0 + (data_cnt + 2))) << 16;
+ dev_dbg(dsim->dev, "count = 3 payload = %x, %x %x %x\n",
+ payload, *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)));
+ } else if ((data1 - data_cnt) == 2) {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8;
+ dev_dbg(dsim->dev,
+ "count = 2 payload = %x, %x %x\n", payload,
+ *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)));
+ } else if ((data1 - data_cnt) == 1) {
+ payload = *(u8 *)(data0 + data_cnt);
+ }
+
+ s5p_dsim_wr_tx_data(dsim, payload);
+ /* send 4bytes per one time. */
+ } else {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
+ (*(u8 *)(data0 + (data_cnt + 2))) << 16 |
+ (*(u8 *)(data0 + (data_cnt + 3))) << 24;
+
+ dev_dbg(dsim->dev,
+ "count = 4 payload = %x, %x %x %x %x\n",
+ payload, *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)),
+ *(u8 *)(data0 + (data_cnt + 3)));
+
+ s5p_dsim_wr_tx_data(dsim, payload);
+ }
+ }
+}
+
+int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id,
+ unsigned int data0, unsigned int data1)
+{
+ struct dsim_global *dsim = NULL;
+ unsigned int timeout = 5000 * 2;
+ unsigned long delay_val, udelay;
+ unsigned int check_rx_ack = 0;
+
+ dsim = (struct dsim_global *)dsim_data;
+
+ WARN_ON(dsim == NULL);
+
+ if (dsim->state == DSIM_STATE_ULPS) {
+ dev_err(dsim->dev, "state is ULPS.\n");
+
+ return -EINVAL;
+ }
+
+ delay_val = 1000000 / dsim->dsim_info->esc_clk;
+ udelay = 10 * delay_val;
+
+ mdelay(udelay);
+
+ /* only if transfer mode is LPDT, wait SFR becomes empty. */
+ if (dsim->state == DSIM_STATE_STOP) {
+ while (!(s5p_dsim_get_fifo_state(dsim) &
+ SFR_HEADER_EMPTY)) {
+ if ((timeout--) > 0)
+ mdelay(1);
+ else {
+ dev_err(dsim->dev,
+ "SRF header fifo is not empty.\n");
+ return -EINVAL;
+ }
+ }
+ }
+
+ switch (data_id) {
+ /* short packet types of packet types for command. */
+ case GEN_SHORT_WR_NO_PARA:
+ case GEN_SHORT_WR_1_PARA:
+ case GEN_SHORT_WR_2_PARA:
+ case DCS_WR_NO_PARA:
+ case DCS_WR_1_PARA:
+ case SET_MAX_RTN_PKT_SIZE:
+ s5p_dsim_wr_tx_header(dsim, data_id, data0, data1);
+ if (check_rx_ack)
+ /* process response func should be implemented */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* general command */
+ case CMD_OFF:
+ case CMD_ON:
+ case SHUT_DOWN:
+ case TURN_ON:
+ s5p_dsim_wr_tx_header(dsim, data_id, data0, data1);
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* packet types for video data */
+ case VSYNC_START:
+ case VSYNC_END:
+ case HSYNC_START:
+ case HSYNC_END:
+ case EOT_PKT:
+ return 0;
+
+ /* short and response packet types for command */
+ case GEN_RD_1_PARA:
+ case GEN_RD_2_PARA:
+ case GEN_RD_NO_PARA:
+ case DCS_RD_NO_PARA:
+ s5p_dsim_clear_interrupt(dsim, 0xffffffff);
+ s5p_dsim_wr_tx_header(dsim, data_id, data0, data1);
+ /* process response func should be implemented. */
+ return 0;
+
+ /* long packet type and null packet */
+ case NULL_PKT:
+ case BLANKING_PKT:
+ return 0;
+ case GEN_LONG_WR:
+ case DCS_LONG_WR:
+ {
+ unsigned int size, data_cnt = 0, payload = 0;
+
+ size = data1 * 4;
+
+ /* if data count is less then 4, then send 3bytes data. */
+ if (data1 < 4) {
+ payload = *(u8 *)(data0) |
+ *(u8 *)(data0 + 1) << 8 |
+ *(u8 *)(data0 + 2) << 16;
+
+ s5p_dsim_wr_tx_data(dsim, payload);
+
+ dev_dbg(dsim->dev, "count = %d payload = %x,%x %x %x\n",
+ data1, payload,
+ *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)));
+ /* in case that data count is more then 4 */
+ } else
+ s5p_dsim_long_data_wr(dsim, data0, data1);
+
+ /* put data into header fifo */
+ s5p_dsim_wr_tx_header(dsim, data_id, data1 & 0xff,
+ (data1 & 0xff00) >> 8);
+
+ }
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* packet typo for video data */
+ case RGB565_PACKED:
+ case RGB666_PACKED:
+ case RGB666_LOOSLY:
+ case RGB888_PACKED:
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+ default:
+ dev_warn(dsim->dev,
+ "data id %x is not supported current DSI spec.\n",
+ data_id);
+
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int s5p_dsim_init_header_fifo(struct dsim_global *dsim)
+{
+ unsigned int cnt;
+
+ WARN_ON(dsim == NULL);
+
+ for (cnt = 0; cnt < DSIM_HEADER_FIFO_SZ; cnt++)
+ dsim->header_fifo_index[cnt] = -1;
+
+ return 0;
+}
+
+int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned int enable)
+{
+ WARN_ON(dsim == NULL);
+
+ if (enable) {
+ int sw_timeout = 1000;
+ s5p_dsim_clear_interrupt(dsim, DSIM_PLL_STABLE);
+ s5p_dsim_enable_pll(dsim, 1);
+ while (1) {
+ sw_timeout--;
+ if (s5p_dsim_is_pll_stable(dsim))
+ return 0;
+ if (sw_timeout == 0)
+ return -EINVAL;
+ }
+ } else
+ s5p_dsim_enable_pll(dsim, 0);
+
+ return 0;
+}
+
+unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
+ unsigned int pre_divider, unsigned int main_divider,
+ unsigned int scaler)
+{
+ unsigned long dfin_pll, dfvco, dpll_out;
+ unsigned int i, freq_band = 0xf;
+
+ WARN_ON(dsim == NULL);
+
+ dfin_pll = (MIPI_FIN / pre_divider);
+
+ if (dfin_pll < 6 * 1000 * 1000 || dfin_pll > 12 * 1000 * 1000) {
+ dev_warn(dsim->dev, "warning!!\n");
+ dev_warn(dsim->dev, "fin_pll range is 6MHz ~ 12MHz\n");
+ dev_warn(dsim->dev, "fin_pll of mipi dphy pll is %luMHz\n",
+ (dfin_pll / 1000000));
+
+ s5p_dsim_enable_afc(dsim, 0, 0);
+ } else {
+ if (dfin_pll < 7 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x1);
+ else if (dfin_pll < 8 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x0);
+ else if (dfin_pll < 9 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x3);
+ else if (dfin_pll < 10 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x2);
+ else if (dfin_pll < 11 * 1000000)
+ s5p_dsim_enable_afc(dsim, 1, 0x5);
+ else
+ s5p_dsim_enable_afc(dsim, 1, 0x4);
+ }
+
+ dfvco = dfin_pll * main_divider;
+ dev_dbg(dsim->dev, "dfvco = %lu, dfin_pll = %lu, main_divider = %d\n",
+ dfvco, dfin_pll, main_divider);
+ if (dfvco < 500000000 || dfvco > 1000000000) {
+ dev_warn(dsim->dev, "Caution!!\n");
+ dev_warn(dsim->dev, "fvco range is 500MHz ~ 1000MHz\n");
+ dev_warn(dsim->dev, "fvco of mipi dphy pll is %luMHz\n",
+ (dfvco / 1000000));
+ }
+
+ dpll_out = dfvco / (1 << scaler);
+ dev_dbg(dsim->dev, "dpll_out = %lu, dfvco = %lu, scaler = %d\n",
+ dpll_out, dfvco, scaler);
+
+ for (i = 0; i < ARRAY_SIZE(dpll_table); i++) {
+ if (dpll_out < dpll_table[i] * 1000000) {
+ freq_band = i;
+ break;
+ }
+ }
+
+ dev_dbg(dsim->dev, "freq_band = %d\n", freq_band);
+
+ s5p_dsim_pll_freq(dsim, pre_divider, main_divider, scaler);
+
+ s5p_dsim_hs_zero_ctrl(dsim, 0);
+ s5p_dsim_prep_ctrl(dsim, 0);
+
+ /* Freq Band */
+ s5p_dsim_pll_freq_band(dsim, freq_band);
+
+ /* Stable time */
+ s5p_dsim_pll_stable_time(dsim,
+ dsim->dsim_info->pll_stable_time);
+
+ /* Enable PLL */
+ dev_dbg(dsim->dev, "FOUT of mipi dphy pll is %luMHz\n",
+ (dpll_out / 1000000));
+
+ return dpll_out;
+}
+
+int s5p_dsim_set_clock(struct dsim_global *dsim,
+ unsigned int byte_clk_sel, unsigned int enable)
+{
+ unsigned int esc_div;
+ unsigned long esc_clk_error_rate;
+
+ WARN_ON(dsim == NULL);
+
+ if (enable) {
+ dsim->e_clk_src = byte_clk_sel;
+
+ /* Escape mode clock and byte clock source */
+ s5p_dsim_set_byte_clock_src(dsim, byte_clk_sel);
+
+ /* DPHY, DSIM Link : D-PHY clock out */
+ if (byte_clk_sel == DSIM_PLL_OUT_DIV8) {
+ dsim->hs_clk = s5p_dsim_change_pll(dsim,
+ dsim->dsim_info->p, dsim->dsim_info->m,
+ dsim->dsim_info->s);
+ if (dsim->hs_clk == 0) {
+ dev_err(dsim->dev,
+ "failed to get hs clock.\n");
+ return -EINVAL;
+ }
+
+ dsim->byte_clk = dsim->hs_clk / 8;
+ s5p_dsim_enable_pll_bypass(dsim, 0);
+ s5p_dsim_pll_on(dsim, 1);
+ /* DPHY : D-PHY clock out, DSIM link : external clock out */
+ } else if (byte_clk_sel == DSIM_EXT_CLK_DIV8)
+ dev_warn(dsim->dev,
+ "this project is not support \
+ external clock source for MIPI DSIM\n");
+ else if (byte_clk_sel == DSIM_EXT_CLK_BYPASS)
+ dev_warn(dsim->dev,
+ "this project is not support \
+ external clock source for MIPI DSIM\n");
+
+ /* escape clock divider */
+ esc_div = dsim->byte_clk / (dsim->dsim_info->esc_clk);
+ dev_dbg(dsim->dev,
+ "esc_div = %d, byte_clk = %lu, esc_clk = %lu\n",
+ esc_div, dsim->byte_clk, dsim->dsim_info->esc_clk);
+ if ((dsim->byte_clk / esc_div) >= 20000000 ||
+ (dsim->byte_clk / esc_div) > dsim->dsim_info->esc_clk)
+ esc_div += 1;
+
+ dsim->escape_clk = dsim->byte_clk / esc_div;
+ dev_dbg(dsim->dev,
+ "escape_clk = %lu, byte_clk = %lu, esc_div = %d\n",
+ dsim->escape_clk, dsim->byte_clk, esc_div);
+
+ /*
+ * enable escclk on lane
+ *
+ * in case of evt0, DSIM_TRUE is enable and
+ * DSIM_FALSE is enable for evt1.
+ */
+ if (dsim->pd->platform_rev == 1)
+ s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
+ else
+ s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
+
+ /* enable byte clk and escape clock */
+ s5p_dsim_set_esc_clk_prs(dsim, 1, esc_div);
+ /* escape clock on lane */
+ s5p_dsim_enable_esc_clk_on_lane(dsim,
+ (DSIM_LANE_CLOCK | dsim->data_lane), 1);
+
+ dev_dbg(dsim->dev, "byte clock is %luMHz\n",
+ (dsim->byte_clk / 1000000));
+ dev_dbg(dsim->dev, "escape clock that user's need is %lu\n",
+ (dsim->dsim_info->esc_clk / 1000000));
+ dev_dbg(dsim->dev, "escape clock divider is %x\n", esc_div);
+ dev_dbg(dsim->dev, "escape clock is %luMHz\n",
+ ((dsim->byte_clk / esc_div) / 1000000));
+
+ if ((dsim->byte_clk / esc_div) > dsim->escape_clk) {
+ esc_clk_error_rate = dsim->escape_clk /
+ (dsim->byte_clk / esc_div);
+ dev_warn(dsim->dev, "error rate is %lu over.\n",
+ (esc_clk_error_rate / 100));
+ } else if ((dsim->byte_clk / esc_div) < (dsim->escape_clk)) {
+ esc_clk_error_rate = (dsim->byte_clk / esc_div) /
+ dsim->escape_clk;
+ dev_warn(dsim->dev, "error rate is %lu under.\n",
+ (esc_clk_error_rate / 100));
+ }
+ } else {
+ s5p_dsim_enable_esc_clk_on_lane(dsim,
+ (DSIM_LANE_CLOCK | dsim->data_lane), 0);
+ s5p_dsim_set_esc_clk_prs(dsim, 0, 0);
+
+ /*
+ * in case of evt0, DSIM_FALSE is disable and
+ * DSIM_TRUE is disable for evt1.
+ */
+ if (dsim->pd->platform_rev == 1)
+ s5p_dsim_enable_byte_clock(dsim, DSIM_TRUE);
+ else
+ s5p_dsim_enable_byte_clock(dsim, DSIM_FALSE);
+
+ if (byte_clk_sel == DSIM_PLL_OUT_DIV8)
+ s5p_dsim_pll_on(dsim, 0);
+ }
+
+ return 0;
+}
+
+int s5p_dsim_init_dsim(struct dsim_global *dsim)
+{
+ WARN_ON(dsim == NULL);
+
+ if (dsim->pd->init_d_phy)
+ dsim->pd->init_d_phy(dsim);
+
+ dsim->state = DSIM_STATE_RESET;
+
+ switch (dsim->dsim_info->e_no_data_lane) {
+ case DSIM_DATA_LANE_1:
+ dsim->data_lane = DSIM_LANE_DATA0;
+ break;
+ case DSIM_DATA_LANE_2:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1;
+ break;
+ case DSIM_DATA_LANE_3:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
+ DSIM_LANE_DATA2;
+ break;
+ case DSIM_DATA_LANE_4:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
+ DSIM_LANE_DATA2 | DSIM_LANE_DATA3;
+ break;
+ default:
+ dev_info(dsim->dev, "data lane is invalid.\n");
+ return -EINVAL;
+ };
+
+ s5p_dsim_init_header_fifo(dsim);
+ s5p_dsim_sw_reset(dsim);
+ s5p_dsim_dp_dn_swap(dsim, dsim->dsim_info->e_lane_swap);
+
+ return 0;
+}
+
+int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim,
+ unsigned int enable)
+{
+ /* enable only frame done interrupt */
+ s5p_dsim_set_interrupt_mask(dsim, INTMSK_FRAME_DONE, enable);
+
+ return 0;
+}
+
+int s5p_dsim_set_display_mode(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
+{
+ struct fb_videomode *mlcd_video = NULL;
+ struct fb_cmdmode *mlcd_command = NULL;
+ struct s3c_fb_pd_win *pd;
+ unsigned int width = 0, height = 0;
+
+ WARN_ON(dsim == NULL);
+
+ pd = (struct s3c_fb_pd_win *)main_lcd->lcd_panel_info;
+
+ /* in case of VIDEO MODE (RGB INTERFACE) */
+ if (dsim->dsim_lcd_info->e_interface == (u32) DSIM_VIDEO) {
+ mlcd_video = (struct fb_videomode *)&pd->win_mode;
+ width = mlcd_video->xres;
+ height = mlcd_video->yres;
+
+ if (dsim->dsim_info->auto_vertical_cnt == DSIM_FALSE) {
+ s5p_dsim_set_main_disp_vporch(dsim,
+ mlcd_video->upper_margin,
+ mlcd_video->lower_margin, 0);
+ s5p_dsim_set_main_disp_hporch(dsim,
+ mlcd_video->left_margin,
+ mlcd_video->right_margin);
+ s5p_dsim_set_main_disp_sync_area(dsim,
+ mlcd_video->vsync_len,
+ mlcd_video->hsync_len);
+ }
+ } else { /* in case of COMMAND MODE (CPU or I80 INTERFACE) */
+ mlcd_command = (struct fb_cmdmode *)&pd->cmd_mode;
+ width = mlcd_command->xres;
+ height = mlcd_command->yres;
+ }
+
+ s5p_dsim_set_main_disp_resol(dsim, height, width);
+
+ if (sub_lcd != NULL)
+ dev_warn(dsim->dev, "sub lcd isn't supported yet.\n");
+
+ s5p_dsim_display_config(dsim, dsim->dsim_lcd_info, NULL);
+
+ return 0;
+}
+
+int s5p_dsim_init_link(struct dsim_global *dsim)
+{
+ unsigned int time_out = 100;
+
+ WARN_ON(dsim == NULL);
+
+ switch (dsim->state) {
+ case DSIM_STATE_RESET:
+ s5p_dsim_sw_reset(dsim);
+ case DSIM_STATE_INIT:
+ s5p_dsim_init_fifo_pointer(dsim, 0x1f);
+
+ /* dsi configuration */
+ s5p_dsim_init_config(dsim, dsim->dsim_lcd_info,
+ NULL, dsim->dsim_info);
+ s5p_dsim_enable_lane(dsim, DSIM_LANE_CLOCK, 1);
+ s5p_dsim_enable_lane(dsim, dsim->data_lane, 1);
+
+ /* set clock configuration */
+ s5p_dsim_set_clock(dsim, dsim->dsim_info->e_byte_clk,
+ 1);
+
+ /* check clock and data lane state is stop state */
+ while (!(s5p_dsim_is_lane_state(dsim, DSIM_LANE_CLOCK)
+ == DSIM_LANE_STATE_STOP) &&
+ !(s5p_dsim_is_lane_state(dsim,
+ dsim->data_lane) == DSIM_LANE_STATE_STOP)) {
+ time_out--;
+ if (time_out == 0) {
+ dev_info(dsim->dev,
+ "DSI Master is not stop state.\n");
+ dev_info(dsim->dev,
+ "Check initialization process\n");
+
+ return -EINVAL;
+ }
+ }
+
+ if (time_out != 0) {
+ dev_info(dsim->dev,
+ "initialization of DSI Master is successful\n");
+ dev_info(dsim->dev, "DSI Master state is stop state\n");
+ }
+
+ dsim->state = DSIM_STATE_STOP;
+
+ /* BTA sequence counters */
+ s5p_dsim_set_stop_state_counter(dsim,
+ dsim->dsim_info->stop_holding_cnt);
+ s5p_dsim_set_bta_timeout(dsim,
+ dsim->dsim_info->bta_timeout);
+ s5p_dsim_set_lpdr_timeout(dsim,
+ dsim->dsim_info->rx_timeout);
+
+ /* default LPDT by both cpu and lcd controller */
+ s5p_dsim_set_data_mode(dsim, DSIM_TRANSFER_BOTH,
+ DSIM_STATE_STOP);
+
+ return 0;
+ default:
+ dev_info(dsim->dev, "DSI Master is already init.\n");
+ return 0;
+ }
+
+ return 0;
+}
+
+int s5p_dsim_set_hs_enable(struct dsim_global *dsim)
+{
+ WARN_ON(dsim == NULL);
+
+ if (dsim->state == DSIM_STATE_STOP) {
+ if (dsim->e_clk_src != DSIM_EXT_CLK_BYPASS) {
+ dsim->state = DSIM_STATE_HSCLKEN;
+ s5p_dsim_set_data_mode(dsim,
+ DSIM_TRANSFER_BOTH, DSIM_STATE_HSCLKEN);
+ s5p_dsim_enable_hs_clock(dsim, 1);
+
+ return 0;
+ } else
+ dev_warn(dsim->dev,
+ "clock source is external bypass.\n");
+ } else
+ dev_warn(dsim->dev, "DSIM is not stop state.\n");
+
+ return 0;
+}
+
+int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
+ unsigned int data_path, unsigned int hs_enable)
+{
+ int ret = -1;
+
+ WARN_ON(dsim == NULL);
+
+ if (hs_enable) {
+ if (dsim->state == DSIM_STATE_HSCLKEN) {
+ s5p_dsim_set_data_mode(dsim, data_path,
+ DSIM_STATE_HSCLKEN);
+ ret = 0;
+ } else {
+ dev_err(dsim->dev, "HS Clock lane is not enabled.\n");
+ ret = -EINVAL;
+ }
+ } else {
+ if (dsim->state == DSIM_STATE_INIT || dsim->state ==
+ DSIM_STATE_ULPS) {
+ dev_err(dsim->dev,
+ "DSI Master is not STOP or HSDT state.\n");
+ ret = -EINVAL;
+ } else {
+ s5p_dsim_set_data_mode(dsim, data_path,
+ DSIM_STATE_STOP);
+ ret = 0;
+ }
+ }
+
+ return ret;
+}
+
+int s5p_dsim_get_frame_done_status(void *dsim_data)
+{
+ struct dsim_global *dsim = NULL;
+
+ dsim = (struct dsim_global *)dsim_data;
+
+ WARN_ON(dsim == NULL);
+
+ return _s5p_dsim_get_frame_done_status(dsim);
+}
+
+int s5p_dsim_clear_frame_done(void *dsim_data)
+{
+ struct dsim_global *dsim = NULL;
+
+ dsim = (struct dsim_global *)dsim_data;
+
+ WARN_ON(dsim == NULL);
+
+ _s5p_dsim_clear_frame_done(dsim);
+
+ return 0;
+}
+
+MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
+MODULE_DESCRIPTION("Samusung MIPI-DSIM common driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/s5p_dsim_common.h b/drivers/video/s5p_dsim_common.h
new file mode 100644
index 0000000..95f51bc
--- /dev/null
+++ b/drivers/video/s5p_dsim_common.h
@@ -0,0 +1,35 @@
+/* linux/drivers/video/samsung/s5p_dsim_common.h
+ *
+ * Header file for Samsung MIPI-DSI common driver.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _S5P_DSIM_COMMON_H
+#define _S5P_DSIM_COMMON_H
+
+extern int s5p_dsim_init_header_fifo(struct dsim_global *dsim);
+extern int s5p_dsim_pll_on(struct dsim_global *dsim, unsigned int enable);
+extern unsigned long s5p_dsim_change_pll(struct dsim_global *dsim,
+ unsigned int pre_divider, unsigned int main_divider,
+ unsigned int scaler);
+extern int s5p_dsim_set_clock(struct dsim_global *dsim,
+ unsigned int byte_clk_sel, unsigned int enable);
+extern int s5p_dsim_init_dsim(struct dsim_global *dsim);
+extern int s5p_dsim_set_display_mode(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd);
+extern int s5p_dsim_init_link(struct dsim_global *dsim);
+extern int s5p_dsim_set_hs_enable(struct dsim_global *dsim);
+extern int s5p_dsim_set_data_transfer_mode(struct dsim_global *dsim,
+ unsigned int data_path, unsigned int hs_enable);
+extern int s5p_dsim_enable_frame_done_int(struct dsim_global *dsim,
+ unsigned int enable);
+
+extern struct fb_info *registered_fb[FB_MAX] __read_mostly;
+
+#endif /* _S5P_DSIM_COMMON_H */
diff --git a/drivers/video/s5p_dsim_lowlevel.c b/drivers/video/s5p_dsim_lowlevel.c
new file mode 100644
index 0000000..b2fc249
--- /dev/null
+++ b/drivers/video/s5p_dsim_lowlevel.c
@@ -0,0 +1,569 @@
+/* linux/drivers/video/samsung/s5p-dsim.c
+ *
+ * Samsung MIPI-DSIM lowlevel driver.
+ *
+ * InKi Dae, <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <linux/delay.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/ctype.h>
+#include <linux/io.h>
+
+#include <mach/map.h>
+
+#include <plat/dsim.h>
+#include <plat/mipi_ddi.h>
+#include <plat/regs-dsim.h>
+
+void s5p_dsim_func_reset(struct dsim_global *dsim)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_SWRST);
+
+ reg |= DSIM_FUNCRST;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_SWRST);
+}
+
+void s5p_dsim_sw_reset(struct dsim_global *dsim)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_SWRST);
+
+ reg |= DSIM_SWRST;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_SWRST);
+}
+
+void s5p_dsim_set_interrupt_mask(struct dsim_global *dsim, unsigned int mode,
+ unsigned int mask)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTMSK);
+
+ if (mask)
+ reg |= mode;
+ else
+ reg &= ~mode;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_INTMSK);
+}
+
+void s5p_dsim_init_fifo_pointer(struct dsim_global *dsim, unsigned int cfg)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_FIFOCTRL);
+
+ writel(reg & ~(cfg), dsim->reg_base + S5P_DSIM_FIFOCTRL);
+ mdelay(10);
+ reg |= cfg;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_FIFOCTRL);
+}
+
+/*
+ * this function set PLL P, M and S value in D-PHY
+ */
+void s5p_dsim_set_phy_tunning(struct dsim_global *dsim, unsigned int value)
+{
+ writel(DSIM_AFC_CTL(value), dsim->reg_base + S5P_DSIM_PHYACCHR);
+}
+
+void s5p_dsim_set_main_disp_resol(struct dsim_global *dsim,
+ unsigned int vert_resol, unsigned int hori_resol)
+{
+ unsigned int reg;
+
+ /* standby should be set after configuration so set to not ready*/
+ reg = (readl(dsim->reg_base + S5P_DSIM_MDRESOL)) &
+ ~(DSIM_MAIN_STAND_BY);
+ writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
+
+ reg &= ~(0x7ff << 16) & ~(0x7ff << 0);
+ reg |= DSIM_MAIN_VRESOL(vert_resol) | DSIM_MAIN_HRESOL(hori_resol);
+
+ reg |= DSIM_MAIN_STAND_BY;
+ writel(reg, dsim->reg_base + S5P_DSIM_MDRESOL);
+}
+
+void s5p_dsim_set_main_disp_vporch(struct dsim_global *dsim,
+ unsigned int cmd_allow, unsigned int vfront, unsigned int vback)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_MVPORCH)) &
+ ~(DSIM_CMD_ALLOW_MASK) & ~(DSIM_STABLE_VFP_MASK) &
+ ~(DSIM_MAIN_VBP_MASK);
+
+ reg |= ((cmd_allow & 0xf) << DSIM_CMD_ALLOW_SHIFT) |
+ ((vfront & 0x7ff) << DSIM_STABLE_VFP_SHIFT) |
+ ((vback & 0x7ff) << DSIM_MAIN_VBP_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_MVPORCH);
+}
+
+void s5p_dsim_set_main_disp_hporch(struct dsim_global *dsim,
+ unsigned int front, unsigned int back)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_MHPORCH)) &
+ ~(DSIM_MAIN_HFP_MASK) & ~(DSIM_MAIN_HBP_MASK);
+
+ reg |= (front << DSIM_MAIN_HFP_SHIFT) | (back << DSIM_MAIN_HBP_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_MHPORCH);
+}
+
+void s5p_dsim_set_main_disp_sync_area(struct dsim_global *dsim,
+ unsigned int vert, unsigned int hori)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_MSYNC)) &
+ ~(DSIM_MAIN_VSA_MASK) & ~(DSIM_MAIN_HSA_MASK);
+
+ reg |= ((vert & 0x3ff) << DSIM_MAIN_VSA_SHIFT) |
+ (hori << DSIM_MAIN_HSA_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_MSYNC);
+}
+
+void s5p_dsim_set_sub_disp_resol(struct dsim_global *dsim,
+ unsigned int vert, unsigned int hori)
+{
+ unsigned int reg;
+
+ reg = (readl(dsim->reg_base + S5P_DSIM_SDRESOL)) &
+ ~(DSIM_SUB_STANDY_MASK);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
+
+ reg &= ~(DSIM_SUB_VRESOL_MASK) | ~(DSIM_SUB_HRESOL_MASK);
+ reg |= ((vert & 0x7ff) << DSIM_SUB_VRESOL_SHIFT) |
+ ((hori & 0x7ff) << DSIM_SUB_HRESOL_SHIFT);
+ writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
+
+ reg |= (1 << DSIM_SUB_STANDY_SHIFT);
+ writel(reg, dsim->reg_base + S5P_DSIM_SDRESOL);
+}
+
+void s5p_dsim_init_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd_info,
+ struct dsim_lcd_config *sub_lcd_info, struct dsim_config *dsim_info)
+{
+ unsigned int cfg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
+ ~(1 << 28) & ~(0x1f << 20) & ~(0x3 << 5);
+
+ cfg = (dsim_info->auto_flush << 29) |
+ (dsim_info->eot_disable << 28) |
+ (dsim_info->auto_vertical_cnt << DSIM_AUTO_MODE_SHIFT) |
+ (dsim_info->hse << DSIM_HSE_MODE_SHIFT) |
+ (dsim_info->hfp << DSIM_HFP_MODE_SHIFT) |
+ (dsim_info->hbp << DSIM_HBP_MODE_SHIFT) |
+ (dsim_info->hsa << DSIM_HSA_MODE_SHIFT) |
+ (dsim_info->e_no_data_lane << DSIM_NUM_OF_DATALANE_SHIFT);
+
+ writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+void s5p_dsim_display_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd)
+{
+ u32 reg = (readl(dsim->reg_base + S5P_DSIM_CONFIG)) &
+ ~(0x3 << 26) & ~(1 << 25) & ~(0x3 << 18) & ~(0x7 << 12) &
+ ~(0x3 << 16) & ~(0x7 << 8);
+
+ if (main_lcd->e_interface == DSIM_VIDEO)
+ reg |= (1 << 25);
+ else if (main_lcd->e_interface == DSIM_COMMAND)
+ reg &= ~(1 << 25);
+ else {
+ dev_err(dsim->dev, "this ddi is not MIPI interface.\n");
+ return;
+ }
+
+ /* main lcd */
+ reg |= ((u8) (main_lcd->parameter[DSI_VIDEO_MODE_SEL]) & 0x3) << 26 |
+ ((u8) (main_lcd->parameter[DSI_VIRTUAL_CH_ID]) & 0x3) << 18 |
+ ((u8) (main_lcd->parameter[DSI_FORMAT]) & 0x7) << 12;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+void s5p_dsim_enable_lane(struct dsim_global *dsim, unsigned int lane,
+ unsigned int enable)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_CONFIG);
+
+ if (lane == DSIM_LANE_CLOCK) {
+ if (enable)
+ reg |= (1 << 0);
+ else
+ reg &= ~(1 << 0);
+ } else {
+ if (enable)
+ reg |= (lane << 1);
+ else
+ reg &= ~(lane << 1);
+ }
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+
+void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
+ unsigned int count)
+{
+ unsigned int cfg;
+
+ /* get the data lane number. */
+ cfg = DSIM_NUM_OF_DATA_LANE(count);
+
+ writel(cfg, dsim->reg_base + S5P_DSIM_CONFIG);
+}
+
+void s5p_dsim_enable_afc(struct dsim_global *dsim, unsigned int enable,
+ unsigned int afc_code)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PHYACCHR);
+
+ if (enable) {
+ reg |= (1 << 14);
+ reg &= ~(0x7 << 5);
+ reg |= (afc_code & 0x7) << 5;
+ } else
+ reg &= ~(1 << 14);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PHYACCHR);
+}
+
+void s5p_dsim_enable_pll_bypass(struct dsim_global *dsim,
+ unsigned int enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(DSIM_PLL_BYPASS_EXTERNAL);
+
+ reg |= enable << DSIM_PLL_BYPASS_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_set_pll_pms(struct dsim_global *dsim, unsigned int p,
+ unsigned int m, unsigned int s)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PLLCTRL);
+
+ reg |= ((p & 0x3f) << 13) | ((m & 0x1ff) << 4) | ((s & 0x7) << 1);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_pll_freq_band(struct dsim_global *dsim, unsigned int freq_band)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x1f << DSIM_FREQ_BAND_SHIFT);
+
+ reg |= ((freq_band & 0x1f) << DSIM_FREQ_BAND_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_pll_freq(struct dsim_global *dsim, unsigned int pre_divider,
+ unsigned int main_divider, unsigned int scaler)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x7ffff << 1);
+
+ reg |= (pre_divider & 0x3f) << 13 | (main_divider & 0x1ff) << 4 |
+ (scaler & 0x7) << 1;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_pll_stable_time(struct dsim_global *dsim,
+ unsigned int lock_time)
+{
+ writel(lock_time, dsim->reg_base + S5P_DSIM_PLLTMR);
+}
+
+void s5p_dsim_enable_pll(struct dsim_global *dsim, unsigned int enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x1 << DSIM_PLL_EN_SHIFT);
+
+ reg |= ((enable & 0x1) << DSIM_PLL_EN_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_set_byte_clock_src(struct dsim_global *dsim, unsigned int src)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(0x3 << DSIM_BYTE_CLK_SRC_SHIFT);
+
+ reg |= ((unsigned int) src) << DSIM_BYTE_CLK_SRC_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_enable_byte_clock(struct dsim_global *dsim,
+ unsigned int enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(1 << DSIM_BYTE_CLKEN_SHIFT);
+
+ reg |= enable << DSIM_BYTE_CLKEN_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_set_esc_clk_prs(struct dsim_global *dsim, unsigned int enable,
+ unsigned int prs_val)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(1 << DSIM_ESC_CLKEN_SHIFT) & ~(0xffff);
+
+ reg |= enable << DSIM_ESC_CLKEN_SHIFT;
+ if (enable)
+ reg |= prs_val;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_enable_esc_clk_on_lane(struct dsim_global *dsim,
+ unsigned int lane_sel, unsigned int enable)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_CLKCTRL);
+
+ if (enable) {
+ if (lane_sel & DSIM_LANE_CLOCK)
+ reg |= 1 << DSIM_LANE_ESC_CLKEN_SHIFT;
+ if (lane_sel & DSIM_LANE_DATA0)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1);
+ if (lane_sel & DSIM_LANE_DATA1)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2);
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3);
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg |= 1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4);
+ } else {
+ if (lane_sel & DSIM_LANE_CLOCK)
+ reg &= ~(1 << DSIM_LANE_ESC_CLKEN_SHIFT);
+ if (lane_sel & DSIM_LANE_DATA0)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 1));
+ if (lane_sel & DSIM_LANE_DATA1)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 2));
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 3));
+ if (lane_sel & DSIM_LANE_DATA2)
+ reg &= ~(1 << (DSIM_LANE_ESC_CLKEN_SHIFT + 4));
+ }
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_force_dphy_stop_state(struct dsim_global *dsim,
+ unsigned int enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_ESCMODE)) &
+ ~(0x1 << DSIM_FORCE_STOP_STATE_SHIFT);
+
+ reg |= ((enable & 0x1) << DSIM_FORCE_STOP_STATE_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_ESCMODE);
+}
+
+unsigned int s5p_dsim_is_lane_state(struct dsim_global *dsim,
+ unsigned int lane)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_STATUS);
+
+ if ((lane & DSIM_LANE_ALL) > DSIM_LANE_CLOCK) { /* all lane state */
+ if ((reg & 0x7ff) ^ (((lane & 0xf) << 4) | (1 << 9)))
+ return DSIM_LANE_STATE_ULPS;
+ else if ((reg & 0x7ff) ^ (((lane & 0xf) << 0) | (1 << 8)))
+ return DSIM_LANE_STATE_STOP;
+ else {
+ dev_err(dsim->dev, "land state is unknown.\n");
+ return -1;
+ }
+ } else if (lane & DSIM_LANE_DATA_ALL) { /* data lane */
+ if (reg & (lane << 4))
+ return DSIM_LANE_STATE_ULPS;
+ else if (reg & (lane << 0))
+ return DSIM_LANE_STATE_STOP;
+ else {
+ dev_err(dsim->dev, "data lane state is unknown.\n");
+ return -1;
+ }
+ } else if (lane & DSIM_LANE_CLOCK) { /* clock lane */
+ if (reg & (1 << 9))
+ return DSIM_LANE_STATE_ULPS;
+ else if (reg & (1 << 8))
+ return DSIM_LANE_STATE_STOP;
+ else if (reg & (1 << 10))
+ return DSIM_LANE_STATE_HS_READY;
+ else {
+ dev_err(dsim->dev, "data lane state is unknown.\n");
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+void s5p_dsim_set_stop_state_counter(struct dsim_global *dsim,
+ unsigned int cnt_val)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_ESCMODE)) &
+ ~(0x7ff << DSIM_STOP_STATE_CNT_SHIFT);
+
+ reg |= ((cnt_val & 0x7ff) << DSIM_STOP_STATE_CNT_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_ESCMODE);
+}
+
+void s5p_dsim_set_bta_timeout(struct dsim_global *dsim, unsigned int timeout)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_TIMEOUT)) &
+ ~(0xff << DSIM_BTA_TOUT_SHIFT);
+
+ reg |= (timeout << DSIM_BTA_TOUT_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_TIMEOUT);
+}
+
+void s5p_dsim_set_lpdr_timeout(struct dsim_global *dsim,
+ unsigned int timeout)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_TIMEOUT)) &
+ ~(0xffff << DSIM_LPDR_TOUT_SHIFT);
+
+ reg |= (timeout << DSIM_LPDR_TOUT_SHIFT);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_TIMEOUT);
+}
+
+void s5p_dsim_set_data_mode(struct dsim_global *dsim, unsigned int data,
+ unsigned int state)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_ESCMODE);
+
+ if (state == DSIM_STATE_HSCLKEN)
+ reg &= ~data;
+ else
+ reg |= data;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_ESCMODE);
+}
+
+void s5p_dsim_enable_hs_clock(struct dsim_global *dsim, unsigned int enable)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_CLKCTRL)) &
+ ~(1 << DSIM_TX_REQUEST_HSCLK_SHIFT);
+
+ reg |= enable << DSIM_TX_REQUEST_HSCLK_SHIFT;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_CLKCTRL);
+}
+
+void s5p_dsim_dp_dn_swap(struct dsim_global *dsim, unsigned int swap_en)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_PHYACCHR1);
+
+ reg &= ~(0x3 << 0);
+ reg |= (swap_en & 0x3) << 0;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PHYACCHR1);
+}
+
+void s5p_dsim_hs_zero_ctrl(struct dsim_global *dsim, unsigned int hs_zero)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0xf << 28);
+
+ reg |= ((hs_zero & 0xf) << 28);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_prep_ctrl(struct dsim_global *dsim, unsigned int prep)
+{
+ unsigned int reg = (readl(dsim->reg_base + S5P_DSIM_PLLCTRL)) &
+ ~(0x7 << 20);
+
+ reg |= ((prep & 0x7) << 20);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PLLCTRL);
+}
+
+void s5p_dsim_clear_interrupt(struct dsim_global *dsim, unsigned int int_src)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
+
+ reg |= int_src;
+
+ writel(reg, dsim->reg_base + S5P_DSIM_INTSRC);
+}
+
+unsigned int s5p_dsim_is_pll_stable(struct dsim_global *dsim)
+{
+ unsigned int reg;
+
+ reg = readl(dsim->reg_base + S5P_DSIM_STATUS);
+
+ return reg & (1 << 31) ? 1 : 0;
+}
+
+unsigned int s5p_dsim_get_fifo_state(struct dsim_global *dsim)
+{
+ unsigned int ret;
+
+ ret = readl(dsim->reg_base + S5P_DSIM_FIFOCTRL) & ~(0x1f);
+
+ return ret;
+}
+
+void s5p_dsim_wr_tx_header(struct dsim_global *dsim,
+ unsigned int di, unsigned int data0, unsigned int data1)
+{
+ unsigned int reg = (data1 << 16) | (data0 << 8) | ((di & 0x3f) << 0);
+
+ writel(reg, dsim->reg_base + S5P_DSIM_PKTHDR);
+}
+
+unsigned int _s5p_dsim_get_frame_done_status(struct dsim_global *dsim)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
+
+ return (reg & INTSRC_FRAME_DONE) ? 1 : 0;
+}
+
+void _s5p_dsim_clear_frame_done(struct dsim_global *dsim)
+{
+ unsigned int reg = readl(dsim->reg_base + S5P_DSIM_INTSRC);
+
+ writel(reg | INTSRC_FRAME_DONE, dsim->reg_base +
+ S5P_DSIM_INTSRC);
+}
+
+void s5p_dsim_wr_tx_data(struct dsim_global *dsim, unsigned int tx_data)
+{
+ writel(tx_data, dsim->reg_base + S5P_DSIM_PAYLOAD);
+}
diff --git a/drivers/video/s5p_dsim_lowlevel.h b/drivers/video/s5p_dsim_lowlevel.h
new file mode 100644
index 0000000..22f7529
--- /dev/null
+++ b/drivers/video/s5p_dsim_lowlevel.h
@@ -0,0 +1,101 @@
+/* linux/drivers/video/samsung/s5p_dsim_lowlevel.h
+ *
+ * Header file for Samsung MIPI-DSIM lowlevel driver.
+ *
+ * Copyright (c) 2009 Samsung Electronics
+ * InKi Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef _S5P_DSIM_LOWLEVEL_H
+#define _S5P_DSIM_LOWLEVEL_H
+
+struct dsim_global;
+
+extern void s5p_dsim_func_reset(struct dsim_global *dsim);
+extern void s5p_dsim_sw_reset(struct dsim_global *dsim);
+extern void s5p_dsim_set_interrupt_mask(struct dsim_global *dsim,
+ unsigned int mode, unsigned int mask);
+extern void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
+ unsigned int count);
+extern void s5p_dsim_init_fifo_pointer(struct dsim_global *dsim,
+ unsigned int cfg);
+extern void s5p_dsim_set_phy_tunning(struct dsim_global *dsim,
+ unsigned int value);
+extern void s5p_dsim_set_phy_tunning(struct dsim_global *dsim,
+ unsigned int value);
+extern void s5p_dsim_set_main_disp_resol(struct dsim_global *dsim,
+ unsigned int vert_resol, unsigned int hori_resol);
+extern void s5p_dsim_set_main_disp_vporch(struct dsim_global *dsim,
+ unsigned int cmd_allow, unsigned int vfront, unsigned int vback);
+extern void s5p_dsim_set_main_disp_hporch(struct dsim_global *dsim,
+ unsigned int front, unsigned int back);
+extern void s5p_dsim_set_main_disp_sync_area(struct dsim_global *dsim,
+ unsigned int vert, unsigned int hori);
+extern void s5p_dsim_set_sub_disp_resol(struct dsim_global *dsim,
+ unsigned int vert, unsigned int hori);
+extern void s5p_dsim_init_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd_info,
+ struct dsim_lcd_config *sub_lcd_info, struct dsim_config *dsim_info);
+extern void s5p_dsim_display_config(struct dsim_global *dsim,
+ struct dsim_lcd_config *main_lcd, struct dsim_lcd_config *sub_lcd);
+extern void s5p_dsim_set_data_lane_number(struct dsim_global *dsim,
+ unsigned int count);
+extern void s5p_dsim_enable_lane(struct dsim_global *dsim, unsigned int lane,
+ unsigned int enable);
+extern void s5p_dsim_enable_afc(struct dsim_global *dsim, unsigned int enable,
+ unsigned int afc_code);
+extern void s5p_dsim_enable_pll_bypass(struct dsim_global *dsim,
+ unsigned int enable);
+extern void s5p_dsim_set_pll_pms(struct dsim_global *dsim, unsigned int p,
+ unsigned int m, unsigned int s);
+extern void s5p_dsim_pll_freq_band(struct dsim_global *dsim,
+ unsigned int freq_band);
+extern void s5p_dsim_pll_freq(struct dsim_global *dsim,
+ unsigned int pre_divider, unsigned int main_divider,
+ unsigned int scaler);
+extern void s5p_dsim_pll_stable_time(struct dsim_global *dsim,
+ unsigned int lock_time);
+extern void s5p_dsim_enable_pll(struct dsim_global *dsim,
+ unsigned int enable);
+extern void s5p_dsim_set_byte_clock_src(struct dsim_global *dsim,
+ unsigned int src);
+extern void s5p_dsim_enable_byte_clock(struct dsim_global *dsim,
+ unsigned int enable);
+extern void s5p_dsim_set_esc_clk_prs(struct dsim_global *dsim,
+ unsigned int enable, unsigned int prs_val);
+extern void s5p_dsim_enable_esc_clk_on_lane(struct dsim_global *dsim,
+ unsigned int lane_sel, unsigned int enable);
+extern void s5p_dsim_force_dphy_stop_state(struct dsim_global *dsim,
+ unsigned int enable);
+extern unsigned int s5p_dsim_is_lane_state(struct dsim_global *dsim,
+ unsigned int lane);
+extern void s5p_dsim_set_stop_state_counter(struct dsim_global *dsim,
+ unsigned int cnt_val);
+extern void s5p_dsim_set_bta_timeout(struct dsim_global *dsim,
+ unsigned int timeout);
+extern void s5p_dsim_set_lpdr_timeout(struct dsim_global *dsim,
+ unsigned int timeout);
+extern void s5p_dsim_set_data_mode(struct dsim_global *dsim,
+ unsigned int data, unsigned int state);
+extern void s5p_dsim_enable_hs_clock(struct dsim_global *dsim,
+ unsigned int enable);
+extern void s5p_dsim_dp_dn_swap(struct dsim_global *dsim,
+ unsigned int swap_en);
+extern void s5p_dsim_hs_zero_ctrl(struct dsim_global *dsim,
+ unsigned int hs_zero);
+extern void s5p_dsim_prep_ctrl(struct dsim_global *dsim, unsigned int prep);
+extern void s5p_dsim_clear_interrupt(struct dsim_global *dsim,
+ unsigned int int_src);
+extern unsigned int s5p_dsim_is_pll_stable(struct dsim_global *dsim);
+extern unsigned int s5p_dsim_get_fifo_state(struct dsim_global *dsim);
+extern unsigned int _s5p_dsim_get_frame_done_status(struct dsim_global *dsim);
+extern void _s5p_dsim_clear_frame_done(struct dsim_global *dsim);
+extern void s5p_dsim_wr_tx_header(struct dsim_global *dsim,
+ unsigned int di, unsigned int data0, unsigned int data1);
+extern void s5p_dsim_wr_tx_data(struct dsim_global *dsim, unsigned int tx_data);
+
+#endif /* _S5P_DSIM_LOWLEVEL_H */
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20100703/61ea0d8b/attachment-0001.html>
^ permalink raw reply related [flat|nested] 30+ messages in thread
* Re: [PATCH v1 2/2] S5PV210: Add MIPI-DSI Driver.
2010-07-03 8:42 ` InKi Dae
@ 2010-07-04 19:33 ` Guennadi Liakhovetski
-1 siblings, 0 replies; 30+ messages in thread
From: Guennadi Liakhovetski @ 2010-07-04 19:33 UTC (permalink / raw)
To: InKi Dae
Cc: kmpark, Andrew Morton, linux-fbdev-devel, Ben Dooks, linux-arm-kernel
On Sat, 3 Jul 2010, InKi Dae wrote:
> this patch addes MIPI-DSI Driver.
>
> to use this driver, some structures below should be added to machine
> specific file.
>
> struct dsim_config
> - define clock info, data lane count and video mode info for MIPI-DSI
> Controller.
>
> struct dsim_lcd_config
> - define interface mode, channel ID, Pixel format and so on.
>
> struct s5p_platform_dsim
> - define callbacks for initializing D-PHY, MIPI reset and trigger
> releated interfaces of s3c-fb.c file.
>
> struct mipi_ddi_platform_data
> - define following callbacks.
> - a function for transferring and receiving command data to mipi based
> lcd panel.
> - a function for getting framedone status of mipi-dsi controller.
> - a function for clearing framedone interrupt of mipi-dsi controller.
> - a function for checking i80 framedone status of display controller.(fimd)
> - a function for triggering to display controller.(fimd)
>
> Signed-off-by: InKi Dae <inki.dae@samsung.com <mailto:p.osciak@samsung.com>>
> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com
> <mailto:kyungmin.park@samsung.com>>
> ---
>
> diff --git a/arch/arm/plat-samsung/include/plat/dsim.h b/arch/arm/plat-samsung/include/plat/dsim.h
> new file mode 100644
> index 0000000..49d8946
> --- /dev/null
> +++ b/arch/arm/plat-samsung/include/plat/dsim.h
> @@ -0,0 +1,493 @@
[snip]
> +enum dsim_fifo_state {
> + DSIM_RX_DATA_FULL = (1 << 25),
> + DSIM_RX_DATA_EMPTY = (1 << 24),
> + SFR_HEADER_FULL = (1 << 23),
> + SFR_HEADER_EMPTY = (1 << 22),
> + SFR_PAYLOAD_FULL = (1 << 21),
> + SFR_PAYLOAD_EMPTY = (1 << 20),
> + I80_HEADER_FULL = (1 << 19),
> + I80_HEADER_EMPTY = (1 << 18),
> + I80_PALOAD_FULL = (1 << 17),
> + I80_PALOAD_EMPTY = (1 << 16),
> + SUB_DISP_HEADER_FULL = (1 << 15),
> + SUB_DISP_HEADER_EMPTY = (1 << 14),
> + SUB_DISP_PAYLOAD_FULL = (1 << 13),
> + SUB_DISP_PAYLOAD_EMPTY = (1 << 12),
> + MAIN_DISP_HEADER_FULL = (1 << 11),
> + MAIN_DISP_HEADER_EMPTY = (1 << 10),
> + MAIN_DISP_PAYLOAD_FULL = (1 << 9),
> + MAIN_DISP_PAYLOAD_EMPTY = (1 << 8),
> +};
Please use include/video/mipi_display.h for these transaction types and,
possibly, for other generic MIPI DSI defines.
Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
^ permalink raw reply [flat|nested] 30+ messages in thread
* [PATCH v1 2/2] S5PV210: Add MIPI-DSI Driver.
@ 2010-07-04 19:33 ` Guennadi Liakhovetski
0 siblings, 0 replies; 30+ messages in thread
From: Guennadi Liakhovetski @ 2010-07-04 19:33 UTC (permalink / raw)
To: linux-arm-kernel
On Sat, 3 Jul 2010, InKi Dae wrote:
> this patch addes MIPI-DSI Driver.
>
> to use this driver, some structures below should be added to machine
> specific file.
>
> struct dsim_config
> - define clock info, data lane count and video mode info for MIPI-DSI
> Controller.
>
> struct dsim_lcd_config
> - define interface mode, channel ID, Pixel format and so on.
>
> struct s5p_platform_dsim
> - define callbacks for initializing D-PHY, MIPI reset and trigger
> releated interfaces of s3c-fb.c file.
>
> struct mipi_ddi_platform_data
> - define following callbacks.
> - a function for transferring and receiving command data to mipi based
> lcd panel.
> - a function for getting framedone status of mipi-dsi controller.
> - a function for clearing framedone interrupt of mipi-dsi controller.
> - a function for checking i80 framedone status of display controller.(fimd)
> - a function for triggering to display controller.(fimd)
>
> Signed-off-by: InKi Dae <inki.dae at samsung.com <mailto:p.osciak@samsung.com>>
> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com
> <mailto:kyungmin.park@samsung.com>>
> ---
>
> diff --git a/arch/arm/plat-samsung/include/plat/dsim.h b/arch/arm/plat-samsung/include/plat/dsim.h
> new file mode 100644
> index 0000000..49d8946
> --- /dev/null
> +++ b/arch/arm/plat-samsung/include/plat/dsim.h
> @@ -0,0 +1,493 @@
[snip]
> +enum dsim_fifo_state {
> + DSIM_RX_DATA_FULL = (1 << 25),
> + DSIM_RX_DATA_EMPTY = (1 << 24),
> + SFR_HEADER_FULL = (1 << 23),
> + SFR_HEADER_EMPTY = (1 << 22),
> + SFR_PAYLOAD_FULL = (1 << 21),
> + SFR_PAYLOAD_EMPTY = (1 << 20),
> + I80_HEADER_FULL = (1 << 19),
> + I80_HEADER_EMPTY = (1 << 18),
> + I80_PALOAD_FULL = (1 << 17),
> + I80_PALOAD_EMPTY = (1 << 16),
> + SUB_DISP_HEADER_FULL = (1 << 15),
> + SUB_DISP_HEADER_EMPTY = (1 << 14),
> + SUB_DISP_PAYLOAD_FULL = (1 << 13),
> + SUB_DISP_PAYLOAD_EMPTY = (1 << 12),
> + MAIN_DISP_HEADER_FULL = (1 << 11),
> + MAIN_DISP_HEADER_EMPTY = (1 << 10),
> + MAIN_DISP_PAYLOAD_FULL = (1 << 9),
> + MAIN_DISP_PAYLOAD_EMPTY = (1 << 8),
> +};
Please use include/video/mipi_display.h for these transaction types and,
possibly, for other generic MIPI DSI defines.
Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
^ permalink raw reply [flat|nested] 30+ messages in thread
end of thread, other threads:[~2010-07-04 19:33 UTC | newest]
Thread overview: 30+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-06-29 8:31 [PATCH 0/3] ARM: S5PV210: Add MIPI-DSI support InKi Dae
2010-06-29 8:31 ` InKi Dae
[not found] ` <4C29B1C1.2000209@samsung.com>
[not found] ` <4C29CABE.9020208@samsung.com>
2010-07-01 22:26 ` [PATCH 1/3] FB: Add some members for CPU Interface Andrew Morton
2010-07-01 22:26 ` Andrew Morton
2010-07-02 8:47 ` [PATCH 0/2] ARM: S5PV210: Add MIPI-DSI support InKi Dae
2010-07-02 8:47 ` InKi Dae
2010-07-03 8:33 ` [PATCH v1 " InKi Dae
2010-07-03 8:33 ` InKi Dae
[not found] ` <4C29B4BA.4090903@samsung.com>
2010-07-02 8:50 ` [PATCH 1/2] S5PV210: FB: Add MIPI-DSI and CPU Interface features InKi Dae
2010-07-02 8:50 ` InKi Dae
2010-07-03 8:35 ` [PATCH v1 " InKi Dae
2010-07-03 8:35 ` InKi Dae
[not found] ` <4C29C766.7010901@samsung.com>
2010-07-02 8:51 ` [PATCH 2/2] S5PV210: Add MIPI-DSI Driver InKi Dae
2010-07-02 8:51 ` InKi Dae
2010-07-02 14:03 ` Ben Dooks
2010-07-02 14:03 ` Ben Dooks
2010-07-02 18:08 ` InKi Dae
2010-07-02 18:08 ` InKi Dae
2010-07-03 1:44 ` Jaya Kumar
2010-07-03 1:44 ` Jaya Kumar
2010-07-03 5:21 ` InKi Dae
2010-07-03 5:21 ` InKi Dae
2010-07-03 7:20 ` InKi Dae
2010-07-03 7:20 ` InKi Dae
2010-07-03 8:42 ` [PATCH v1 " InKi Dae
2010-07-03 8:42 ` InKi Dae
2010-07-04 19:33 ` Guennadi Liakhovetski
2010-07-04 19:33 ` Guennadi Liakhovetski
2010-07-02 13:34 ` [PATCH 0/3] ARM: S5PV210: Add MIPI-DSI support Ben Dooks
2010-07-02 13:34 ` Ben Dooks
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.