[PATCH 0/7] Add device tree based discovery support for drm-fimd

[PATCH 0/7] Add device tree based discovery support for drm-fimd

[Leela Krishna Amudala]

From: Leela Krishna <l.krishna@samsung.com>

The patches are created against "for-next" branch of Kukjin Kim's tree at:
 git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung.git

This patch set adds Backlight, LCD support and device tree based discovery 
support for drm-fimd

Leela Krishna (3):
  ARM: EXYNOS5: add device tree based discovery support for FIMD
  ARM: EXYNOS5: Add the bus clock for FIMD
  ARM: EXYNOS5: Set parent clock to fimd

Leela Krishna Amudala (4):
  ARM: SAMSUNG: add additional registers and SFR definitions for
    writeback
  ARM: EXYNOS5: add machine specific support for backlight
  ARM: EXYNOS5: add machine specific support for LCD
  ARM: EXYNOS: Adding DRM platform device

 arch/arm/boot/dts/exynos5250-smdk5250.dts       |   16 +++
 arch/arm/boot/dts/exynos5250.dtsi               |    7 ++
 arch/arm/mach-exynos/Kconfig                    |    1 +
 arch/arm/mach-exynos/clock-exynos5.c            |   30 ++++--
 arch/arm/mach-exynos/include/mach/map.h         |    1 +
 arch/arm/mach-exynos/mach-exynos5-dt.c          |  125 +++++++++++++++++++++++
 arch/arm/plat-samsung/include/plat/clock.h      |    2 +
 arch/arm/plat-samsung/include/plat/regs-fb-v4.h |   10 ++
 arch/arm/plat-samsung/include/plat/regs-fb.h    |   51 +++++++++
 drivers/video/Kconfig                           |    6 +
 10 files changed, 239 insertions(+), 10 deletions(-)

[PATCH 1/7] ARM: SAMSUNG: add additional registers and SFR definitions for writeback

[Leela Krishna Amudala]

This patch updates the register address offsets and adds SFR definitions
for writeback for Samsung's V8 display controller.

Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
---
 arch/arm/plat-samsung/include/plat/regs-fb-v4.h |   10 ++++
 arch/arm/plat-samsung/include/plat/regs-fb.h    |   51 +++++++++++++++++++++++
 drivers/video/Kconfig                           |    6 +++
 3 files changed, 67 insertions(+), 0 deletions(-)

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 4c3647f..1639c17 100644
--- a/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
+++ b/arch/arm/plat-samsung/include/plat/regs-fb-v4.h
@@ -30,9 +30,16 @@
 #define VIDCON1_FSTATUS_EVEN	(1 << 15)
 
 /* Video timing controls */
+#ifdef CONFIG_FB_EXYNOS_FIMD_V8
+#define VIDTCON0                                (0x20010)
+#define VIDTCON1                                (0x20014)
+#define VIDTCON3                                (0x2001C)
+#else
 #define VIDTCON0				(0x10)
 #define VIDTCON1				(0x14)
 #define VIDTCON2				(0x18)
+#define VIDTCON3				(0x1C)
+#endif
 
 /* Window position controls */
 
@@ -43,9 +50,12 @@
 #define VIDOSD_BASE				(0x40)
 
 #define VIDINTCON0				(0x130)
+#define VIDINTCON1                              (0x134)
 
 /* WINCONx */
 
+#define WINCONx_CSC_CON_EQ709                   (1 << 28)
+#define WINCONx_CSC_CON_EQ601                   (0 << 28)
 #define WINCONx_CSCWIDTH_MASK			(0x3 << 26)
 #define WINCONx_CSCWIDTH_SHIFT			(26)
 #define WINCONx_CSCWIDTH_WIDE			(0x0 << 26)
diff --git a/arch/arm/plat-samsung/include/plat/regs-fb.h b/arch/arm/plat-samsung/include/plat/regs-fb.h
index 9a78012..6d2ee16 100644
--- a/arch/arm/plat-samsung/include/plat/regs-fb.h
+++ b/arch/arm/plat-samsung/include/plat/regs-fb.h
@@ -32,12 +32,28 @@
 
 #define VIDCON0					(0x00)
 #define VIDCON0_INTERLACE			(1 << 29)
+
+#ifdef CONFIG_FB_EXYNOS_FIMD_V8
+#define VIDOUT_CON				(0x20000)
+#define VIDOUT_CON_VIDOUT_UP_MASK		(0x1 << 16)
+#define VIDOUT_CON_VIDOUT_UP_SHIFT		(16)
+#define VIDOUT_CON_VIDOUT_UP_ALWAYS		(0x0 << 16)
+#define VIDOUT_CON_VIDOUT_UP_START_FRAME	(0x1 << 16)
+#define VIDOUT_CON_VIDOUT_F_MASK		(0x7 << 8)
+#define VIDOUT_CON_VIDOUT_F_SHIFT		(8)
+#define VIDOUT_CON_VIDOUT_F_RGB			(0x0 << 8)
+#define VIDOUT_CON_VIDOUT_F_I80_LDI0		(0x2 << 8)
+#define VIDOUT_CON_VIDOUT_F_I80_LDI1		(0x3 << 8)
+#define VIDOUT_CON_VIDOUT_F_WB			(0x4 << 8)
+#endif
+
 #define VIDCON0_VIDOUT_MASK			(0x3 << 26)
 #define VIDCON0_VIDOUT_SHIFT			(26)
 #define VIDCON0_VIDOUT_RGB			(0x0 << 26)
 #define VIDCON0_VIDOUT_TV			(0x1 << 26)
 #define VIDCON0_VIDOUT_I80_LDI0			(0x2 << 26)
 #define VIDCON0_VIDOUT_I80_LDI1			(0x3 << 26)
+#define VIDCON0_VIDOUT_WB                       (0x4 << 26)
 
 #define VIDCON0_L1_DATA_MASK			(0x7 << 23)
 #define VIDCON0_L1_DATA_SHIFT			(23)
@@ -81,7 +97,13 @@
 #define VIDCON0_ENVID				(1 << 1)
 #define VIDCON0_ENVID_F				(1 << 0)
 
+#ifdef CONFIG_FB_EXYNOS_FIMD_V8
+#define VIDOUT_CON                              (0x20000)
+#define VIDCON1                                 (0x20004)
+#else
 #define VIDCON1					(0x04)
+#endif
+
 #define VIDCON1_LINECNT_MASK			(0x7ff << 16)
 #define VIDCON1_LINECNT_SHIFT			(16)
 #define VIDCON1_LINECNT_GET(_v)			(((_v) >> 16) & 0x7ff)
@@ -111,6 +133,14 @@
 #define VIDCON2_TVFMTSEL1_RGB			(0x0 << 12)
 #define VIDCON2_TVFMTSEL1_YUV422		(0x1 << 12)
 #define VIDCON2_TVFMTSEL1_YUV444		(0x2 << 12)
+#define VIDCON2_TVFMTSEL1_SHIFT			(12)
+#define VIDCON2_TVFMTSEL_SW			(1 << 14)
+#define VIDCON2_TVFORMATSEL_YUV444		(0x2 << 12)
+
+#define VIDCON2_TVFMTSEL1_MASK			(0x3 << 12)
+#define VIDCON2_TVFMTSEL1_RGB			(0x0 << 12)
+#define VIDCON2_TVFMTSEL1_YUV422		(0x1 << 12)
+#define VIDCON2_TVFMTSEL1_YUV444		(0x2 << 12)
 
 #define VIDCON2_ORGYCbCr			(1 << 8)
 #define VIDCON2_YUVORDCrCb			(1 << 7)
@@ -165,8 +195,15 @@
 #define VIDTCON1_HSPW_SHIFT			(0)
 #define VIDTCON1_HSPW_LIMIT			(0xff)
 #define VIDTCON1_HSPW(_x)			((_x) << 0)
+#define VIDCON1_VCLK_MASK                       (0x3 << 9)
+#define VIDCON1_VCLK_HOLD                       (0x0 << 9)
+#define VIDCON1_VCLK_RUN                        (0x1 << 9)
 
+#ifdef CONFIG_FB_EXYNOS_FIMD_V8
+#define VIDTCON2				(0x20018)
+#else
 #define VIDTCON2				(0x18)
+#endif
 #define VIDTCON2_LINEVAL_E(_x)			((((_x) & 0x800) >> 11) << 23)
 #define VIDTCON2_LINEVAL_MASK			(0x7ff << 11)
 #define VIDTCON2_LINEVAL_SHIFT			(11)
@@ -186,6 +223,9 @@
 #define WINCONx_BYTSWP				(1 << 17)
 #define WINCONx_HAWSWP				(1 << 16)
 #define WINCONx_WSWP				(1 << 15)
+#define WINCONx_ENLOCAL_MASK			(0xf << 15)
+#define WINCONx_INRGB_RGB			(0 << 13)
+#define WINCONx_INRGB_YCBCR			(1 << 13)
 #define WINCONx_BURSTLEN_MASK			(0x3 << 9)
 #define WINCONx_BURSTLEN_SHIFT			(9)
 #define WINCONx_BURSTLEN_16WORD			(0x0 << 9)
@@ -205,6 +245,7 @@
 #define WINCON0_BPPMODE_24BPP_888		(0xb << 2)
 
 #define WINCON1_BLD_PIX				(1 << 6)
+#define WINCON1_BLD_PLANE			(0 << 6)
 
 #define WINCON1_ALPHA_SEL			(1 << 1)
 #define WINCON1_BPPMODE_MASK			(0xf << 2)
@@ -395,9 +436,19 @@
 #define WPALCON_W0PAL_16BPP_A555		(0x5 << 0)
 #define WPALCON_W0PAL_16BPP_565			(0x6 << 0)
 
+/* Clock gate mode control */
+#define REG_CLKGATE_MODE			(0x1b0)
+#define REG_CLKGATE_MODE_AUTO_CLOCK_GATE	(0 << 0)
+#define REG_CLKGATE_MODE_NON_CLOCK_GATE		(1 << 0)
+
 /* Blending equation control */
 #define BLENDCON				(0x260)
 #define BLENDCON_NEW_MASK			(1 << 0)
 #define BLENDCON_NEW_8BIT_ALPHA_VALUE		(1 << 0)
 #define BLENDCON_NEW_4BIT_ALPHA_VALUE		(0 << 0)
 
+/* Window alpha control */
+#define VIDW0ALPHA0				(0x200)
+#define VIDW0ALPHA1				(0x204)
+#define DPCLKCON				(0x27c)
+#define DPCLKCON_ENABLE				(1 << 1)
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 0217f74..f81bf55 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -2053,6 +2053,12 @@ config FB_S3C
 
 	  Currently the support is only for the S3C6400 and S3C6410 SoCs.
 
+config FB_EXYNOS_FIMD_V8
+	bool "register extensions for FIMD version 8"
+	depends on ARCH_EXYNOS5
+	---help---
+	This uses register extensions for FIMD version 8
+
 config FB_S3C_DEBUG_REGWRITE
        bool "Debug register writes"
        depends on FB_S3C
-- 
1.7.0.4

[PATCH 2/7] ARM: EXYNOS5: add machine specific support for backlight

[Leela Krishna Amudala]

Adds machine specific support for LCD backlight for SMDK board based
on Exynos5

Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
---
 arch/arm/mach-exynos/Kconfig           |    1 +
 arch/arm/mach-exynos/mach-exynos5-dt.c |   28 ++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 498596b..a2a2940 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -412,6 +412,7 @@ config MACH_EXYNOS5_DT
 	select SOC_EXYNOS5250
 	select USE_OF
 	select ARM_AMBA
+	select SAMSUNG_DEV_BACKLIGHT
 	help
 	  Machine support for Samsung Exynos4 machine with device tree enabled.
 	  Select this if a fdt blob is available for the EXYNOS4 SoC based board.
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index 7b1e11a..0a200fd 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -11,6 +11,8 @@
 
 #include <linux/of_platform.h>
 #include <linux/serial_core.h>
+#include <linux/pwm_backlight.h>
+#include <linux/gpio.h>
 
 #include <asm/mach/arch.h>
 #include <asm/hardware/gic.h>
@@ -18,9 +20,34 @@
 
 #include <plat/cpu.h>
 #include <plat/regs-serial.h>
+#include <plat/backlight.h>
+#include <plat/gpio-cfg.h>
 
 #include "common.h"
 
+
+static int smdk5250_bl_notify(struct device *unused, int brightness)
+{
+	/* manage lcd_bl_en signal */
+	if (brightness)
+		gpio_set_value(EXYNOS5_GPX3(0), 1);
+	else
+		gpio_set_value(EXYNOS5_GPX3(0), 0);
+
+	return brightness;
+}
+
+/* LCD Backlight data */
+static struct samsung_bl_gpio_info smdk5250_bl_gpio_info = {
+	.no	= EXYNOS5_GPB2(0),
+	.func	= S3C_GPIO_SFN(2),
+};
+
+static struct platform_pwm_backlight_data smdk5250_bl_data = {
+	.pwm_period_ns	= 1000000,
+	.notify		= smdk5250_bl_notify,
+};
+
 /*
  * The following lookup table is used to override device names when devices
  * are registered from device tree. This is temporarily added to enable
@@ -61,6 +88,7 @@ static void __init exynos5250_dt_map_io(void)
 
 static void __init exynos5250_dt_machine_init(void)
 {
+	samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
 	of_platform_populate(NULL, of_default_bus_match_table,
 				exynos5250_auxdata_lookup, NULL);
 }
-- 
1.7.0.4

[PATCH 3/7] ARM: EXYNOS5: add machine specific support for LCD

[Leela Krishna Amudala]

This patch adds machine specific support for LCD controller like setting power to LCD
and adding LCD platform device.

Signed-off-by: Prathyush K <prathyush.k@samsung.com>
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
---
 arch/arm/mach-exynos/mach-exynos5-dt.c |   57 ++++++++++++++++++++++++++++++++
 1 files changed, 57 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index 0a200fd..652a537 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -13,6 +13,7 @@
 #include <linux/serial_core.h>
 #include <linux/pwm_backlight.h>
 #include <linux/gpio.h>
+#include <linux/delay.h>
 
 #include <asm/mach/arch.h>
 #include <asm/hardware/gic.h>
@@ -25,6 +26,8 @@
 
 #include "common.h"
 
+#include <video/platform_lcd.h>
+
 
 static int smdk5250_bl_notify(struct device *unused, int brightness)
 {
@@ -48,6 +51,55 @@ static struct platform_pwm_backlight_data smdk5250_bl_data = {
 	.notify		= smdk5250_bl_notify,
 };
 
+static void lcd_set_power(struct plat_lcd_data *pd,
+			unsigned int power)
+{
+
+	/* reset */
+	gpio_request_one(EXYNOS5_GPX1(5), GPIOF_OUT_INIT_HIGH, "GPX1");
+
+	mdelay(20);
+	if (power) {
+		/* fire nRESET on power up */
+		gpio_set_value(EXYNOS5_GPX1(5), 0);
+		mdelay(20);
+		gpio_set_value(EXYNOS5_GPX1(5), 1);
+		mdelay(20);
+		gpio_free(EXYNOS5_GPX1(5));
+	} else {
+		/* fire nRESET on power off */
+		gpio_set_value(EXYNOS5_GPX1(5), 0);
+		mdelay(20);
+		gpio_set_value(EXYNOS5_GPX1(5), 1);
+		mdelay(20);
+		gpio_free(EXYNOS5_GPX1(5));
+	}
+	mdelay(20);
+
+	/*
+	 * Request lcd_bl_en GPIO for smdk5250_bl_notify().
+	 * TODO: Fix this so we are not at risk of requesting the GPIO
+	 * multiple times, this should be done with device tree, and
+	 * likely integrated into the plat-samsung/dev-backlight.c init.
+	 */
+	gpio_request_one(EXYNOS5_GPX3(0), GPIOF_OUT_INIT_LOW, "GPX3");
+}
+
+static int smdk5250_match_fb(struct plat_lcd_data *pd, struct fb_info *info)
+{
+	/* Don't call .set_power callback while unblanking */
+	return 0;
+}
+
+static struct plat_lcd_data smdk5250_lcd_data = {
+	.set_power	= lcd_set_power,
+	.match_fb	= smdk5250_match_fb,
+};
+
+static struct platform_device smdk5250_lcd = {
+	.name			= "platform-lcd",
+	.dev.platform_data	= &smdk5250_lcd_data,
+};
 /*
  * The following lookup table is used to override device names when devices
  * are registered from device tree. This is temporarily added to enable
@@ -80,6 +132,10 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
 	{},
 };
 
+static struct platform_device *smdk5250_devices[] __initdata = {
+	&smdk5250_lcd, /* for platform_lcd device */
+};
+
 static void __init exynos5250_dt_map_io(void)
 {
 	exynos_init_io(NULL, 0);
@@ -91,6 +147,7 @@ static void __init exynos5250_dt_machine_init(void)
 	samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
 	of_platform_populate(NULL, of_default_bus_match_table,
 				exynos5250_auxdata_lookup, NULL);
+	platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
 }
 
 static char const *exynos5250_dt_compat[] __initdata = {
-- 
1.7.0.4

[PATCH 4/7] ARM: EXYNOS: Adding DRM platform device

[Leela Krishna Amudala]

Add DRM platform device to machine file for exynos5.

Signed-off-by: Prathyush K <prathyush.k@samsung.com>
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
---
 arch/arm/mach-exynos/mach-exynos5-dt.c |   27 +++++++++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index 652a537..a91c928 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -17,6 +17,7 @@
 
 #include <asm/mach/arch.h>
 #include <asm/hardware/gic.h>
+#include <asm/io.h>
 #include <mach/map.h>
 
 #include <plat/cpu.h>
@@ -29,6 +30,22 @@
 #include <video/platform_lcd.h>
 
 
+static void exynos_fimd_gpio_setup_24bpp(void)
+{
+	unsigned int reg = 0;
+	/*
+	 * Set DISP1BLK_CFG register for Display path selection
+	 * FIMD of DISP1_BLK Bypass selection : DISP1BLK_CFG[15]
+	 * ---------------------
+	 * 0 | MIE/MDNIE
+	 * 1 | FIMD : selected
+	 */
+	reg = __raw_readl(S3C_VA_SYS + 0x0214);
+	reg &= ~(1 << 15);      /* To save other reset values */
+	reg |= (1 << 15);
+	__raw_writel(reg, S3C_VA_SYS + 0x0214);
+}
+
 static int smdk5250_bl_notify(struct device *unused, int brightness)
 {
 	/* manage lcd_bl_en signal */
@@ -51,6 +68,14 @@ static struct platform_pwm_backlight_data smdk5250_bl_data = {
 	.notify		= smdk5250_bl_notify,
 };
 
+static struct platform_device exynos_drm_device = {
+	.name		= "exynos-drm",
+	.dev = {
+		.dma_mask = &exynos_drm_device.dev.coherent_dma_mask,
+		.coherent_dma_mask = 0xffffffffUL,
+	}
+};
+
 static void lcd_set_power(struct plat_lcd_data *pd,
 			unsigned int power)
 {
@@ -134,6 +159,7 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
 
 static struct platform_device *smdk5250_devices[] __initdata = {
 	&smdk5250_lcd, /* for platform_lcd device */
+	&exynos_drm_device,
 };
 
 static void __init exynos5250_dt_map_io(void)
@@ -147,6 +173,7 @@ static void __init exynos5250_dt_machine_init(void)
 	samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
 	of_platform_populate(NULL, of_default_bus_match_table,
 				exynos5250_auxdata_lookup, NULL);
+	exynos_fimd_gpio_setup_24bpp();
 	platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
 }
 
-- 
1.7.0.4

[PATCH 5/7] ARM: EXYNOS5: add device tree based discovery support for FIMD

[Leela Krishna Amudala]

From: Leela Krishna <l.krishna@samsung.com>

This patch adds support for device tree based discovery for Samsung's
display controller. Adds DRM-Fimd plat data for smdk5250
evt1 to the corresponding dts file

Signed-off-by: Leela Krishna <l.krishna@samsung.com>
---
 arch/arm/boot/dts/exynos5250-smdk5250.dts |   16 ++++++++++++++++
 arch/arm/boot/dts/exynos5250.dtsi         |    7 +++++++
 arch/arm/mach-exynos/include/mach/map.h   |    1 +
 arch/arm/mach-exynos/mach-exynos5-dt.c    |    2 ++
 4 files changed, 26 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index 49945cc..781f836 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -71,4 +71,20 @@
 	i2c at 12CD0000 {
 		status = "disabled";
 	};
+
+	lcd_fimd0: lcd_panel0 {
+			lcd-htiming = <4 4 4 1280>;
+			lcd-vtiming = <4 4 4 800>;
+			supports-mipi-panel;
+	};
+
+	fimd {
+		samsung,fimd-display = <&lcd_fimd0>;
+		samsung,fimd-vidout-rgb;
+		samsung,fimd-inv-vclk;
+		samsung,fimd-frame-rate = <60>;
+		samsung,default-window = <0>;
+		samsung,fimd-win-bpp = <32>;
+	};
+
 };
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 4272b29..f9954fe 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -424,4 +424,11 @@
 			#gpio-cells = <4>;
 		};
 	};
+
+	fimd {
+		compatible = "samsung,exynos5-drm";
+		interrupt-parent = <&combiner>;
+		reg = <0x14400000 0x40000>;
+		interrupts = <18 5>, <18 4>, <18 6>;
+	};
 };
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index ca4aa89..731b56e 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -167,6 +167,7 @@
 #define EXYNOS4_PA_MIPI_CSIS1		0x11890000
 
 #define EXYNOS4_PA_FIMD0		0x11C00000
+#define EXYNOS5_PA_FIMD1		0x14400000
 
 #define EXYNOS4_PA_HSMMC(x)		(0x12510000 + ((x) * 0x10000))
 #define EXYNOS4_PA_DWMCI		0x12550000
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index a91c928..9d5bccc 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -154,6 +154,8 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
 	OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA0, "dma-pl330.0", NULL),
 	OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.1", NULL),
 	OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1, "dma-pl330.2", NULL),
+	OF_DEV_AUXDATA("samsung,exynos5-drm", EXYNOS5_PA_FIMD1,
+				"exynos5-fb", NULL),
 	{},
 };
 
-- 
1.7.0.4

[PATCH 6/7] ARM: EXYNOS5: Add the bus clock for FIMD

[Leela Krishna Amudala]

From: Leela Krishna <l.krishna@samsung.com>

This patch adds the bus clock for FIMD and changes
the device name for lcd clock

Signed-off-by: Leela Krishna <l.krishna@samsung.com>
---
 arch/arm/mach-exynos/clock-exynos5.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c
index fefa336..61bf88d 100644
--- a/arch/arm/mach-exynos/clock-exynos5.c
+++ b/arch/arm/mach-exynos/clock-exynos5.c
@@ -629,6 +629,11 @@ static struct clk exynos5_init_clocks_off[] = {
 		.enable		= exynos5_clk_ip_disp1_ctrl,
 		.ctrlbit	= (1 << 3),
 	}, {
+		.name           = "fimd",
+		.devname        = "exynos5-fb",
+		.enable         = exynos5_clk_ip_disp1_ctrl,
+		.ctrlbit        = (1 << 0),
+	}, {
 		.name		= "iis",
 		.devname	= "samsung-i2s.1",
 		.enable		= exynos5_clk_ip_peric_ctrl,
@@ -1046,7 +1051,7 @@ static struct clksrc_clk exynos5_clksrcs[] = {
 	}, {
 		.clk	= {
 			.name		= "sclk_fimd",
-			.devname	= "s3cfb.1",
+			.devname	= "exynos5-fb",
 			.enable		= exynos5_clksrc_mask_disp1_0_ctrl,
 			.ctrlbit	= (1 << 0),
 		},
-- 
1.7.0.4

[PATCH 7/7] ARM: EXYNOS5: Set parent clock to fimd

[Leela Krishna Amudala]

From: Leela Krishna <l.krishna@samsung.com>

This patch sets mout_mpll_user as parent clock to fimd also
sets Fimd source clock rate to 800 MHz for MIPI LCD

Signed-off-by: Leela Krishna <l.krishna@samsung.com>
---
 arch/arm/mach-exynos/clock-exynos5.c       |   25 +++++++++++++++----------
 arch/arm/mach-exynos/mach-exynos5-dt.c     |   11 +++++++++++
 arch/arm/plat-samsung/include/plat/clock.h |    2 ++
 3 files changed, 28 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c
index 61bf88d..a0d65f6 100644
--- a/arch/arm/mach-exynos/clock-exynos5.c
+++ b/arch/arm/mach-exynos/clock-exynos5.c
@@ -1039,6 +1039,18 @@ static struct clksrc_clk exynos5_clk_sclk_mmc3 = {
 	.reg_div = { .reg = EXYNOS5_CLKDIV_FSYS2, .shift = 24, .size = 8 },
 };
 
+struct clksrc_clk exynos5_clk_sclk_fimd = {
+	.clk	= {
+		.name		= "sclk_fimd",
+		.devname	= "exynos5-fb",
+		.enable		= exynos5_clksrc_mask_disp1_0_ctrl,
+		.ctrlbit	= (1 << 0),
+	},
+	.sources = &exynos5_clkset_group,
+	.reg_src = { .reg = EXYNOS5_CLKSRC_DISP1_0, .shift = 0,	.size = 4 },
+	.reg_div = { .reg = EXYNOS5_CLKDIV_DISP1_0, .shift = 0, .size = 4 },
+};
+
 static struct clksrc_clk exynos5_clksrcs[] = {
 	{
 		.clk	= {
@@ -1050,16 +1062,6 @@ static struct clksrc_clk exynos5_clksrcs[] = {
 		.reg_div = { .reg = EXYNOS5_CLKDIV_FSYS3, .shift = 8, .size = 8 },
 	}, {
 		.clk	= {
-			.name		= "sclk_fimd",
-			.devname	= "exynos5-fb",
-			.enable		= exynos5_clksrc_mask_disp1_0_ctrl,
-			.ctrlbit	= (1 << 0),
-		},
-		.sources = &exynos5_clkset_group,
-		.reg_src = { .reg = EXYNOS5_CLKSRC_DISP1_0, .shift = 0, .size = 4 },
-		.reg_div = { .reg = EXYNOS5_CLKDIV_DISP1_0, .shift = 0, .size = 4 },
-	}, {
-		.clk	= {
 			.name		= "aclk_266_gscl",
 		},
 		.sources = &clk_src_gscl_266,
@@ -1153,6 +1155,7 @@ static struct clksrc_clk *exynos5_sysclks[] = {
 	&exynos5_clk_dout_mmc4,
 	&exynos5_clk_aclk_acp,
 	&exynos5_clk_pclk_acp,
+	&exynos5_clk_sclk_fimd,
 };
 
 static struct clk *exynos5_clk_cdev[] = {
@@ -1402,6 +1405,8 @@ void __init_or_cpufreq exynos5_setup_clocks(void)
 
 	clk_set_rate(&exynos5_clk_aclk_acp.clk, 267000000);
 	clk_set_rate(&exynos5_clk_pclk_acp.clk, 134000000);
+	clk_set_parent(&exynos5_clk_sclk_fimd.clk,
+			&exynos5_clk_mout_mpll_user.clk);
 
 	for (ptr = 0; ptr < ARRAY_SIZE(exynos5_clksrcs); ptr++)
 		s3c_set_clksrc(&exynos5_clksrcs[ptr], true);
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index 9d5bccc..248ca58 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -24,6 +24,9 @@
 #include <plat/regs-serial.h>
 #include <plat/backlight.h>
 #include <plat/gpio-cfg.h>
+#include <plat/clock.h>
+#include <plat/s5p-clock.h>
+#include <plat/clock-clksrc.h>
 
 #include "common.h"
 
@@ -172,9 +175,17 @@ static void __init exynos5250_dt_map_io(void)
 
 static void __init exynos5250_dt_machine_init(void)
 {
+	struct device_node *fimd_node;
+
 	samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
 	of_platform_populate(NULL, of_default_bus_match_table,
 				exynos5250_auxdata_lookup, NULL);
+
+	fimd_node = of_find_node_with_property(NULL, "supports-mipi-panel");
+	if (of_get_property(fimd_node, "supports-mipi-panel", NULL))
+		clk_set_rate(&exynos5_clk_sclk_fimd.clk, 800000000);
+	of_node_put(fimd_node);
+
 	exynos_fimd_gpio_setup_24bpp();
 	platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
 }
diff --git a/arch/arm/plat-samsung/include/plat/clock.h b/arch/arm/plat-samsung/include/plat/clock.h
index a62753d..3d27783 100644
--- a/arch/arm/plat-samsung/include/plat/clock.h
+++ b/arch/arm/plat-samsung/include/plat/clock.h
@@ -83,6 +83,8 @@ extern struct clk clk_ext;
 extern struct clksrc_clk clk_epllref;
 extern struct clksrc_clk clk_esysclk;
 
+extern struct clksrc_clk exynos5_clk_sclk_fimd;
+
 /* S3C64XX specific clocks */
 extern struct clk clk_h2;
 extern struct clk clk_27m;
-- 
1.7.0.4

RE: [PATCH 0/7] Add device tree based discovery support for drm-fimd

[Jingoo Han]

On July 11, 2012 6:11 PM, Leela Krishna Amudala <l.krishna@samsung.com> wrote:
> 
> From: Leela Krishna <l.krishna@samsung.com>
> 
> The patches are created against "for-next" branch of Kukjin Kim's tree at:
>  git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung.git
> 
> This patch set adds Backlight, LCD support and device tree based discovery
> support for drm-fimd

Your patchset seems FB-FIMD, not DRM-FIMD.

FIMD IP can be used by FB or DRM framework.
Please, use the term clearly.

If your patches use ./drivers/video/s3c-fb.c, please use the term 'FB'.
If your patches use ./drivers/gpu/drm/exynos/*, please use the term 'DRM'.

Best regards,
Jingoo Han

> 
> Leela Krishna (3):
>   ARM: EXYNOS5: add device tree based discovery support for FIMD
>   ARM: EXYNOS5: Add the bus clock for FIMD
>   ARM: EXYNOS5: Set parent clock to fimd
> 
> Leela Krishna Amudala (4):
>   ARM: SAMSUNG: add additional registers and SFR definitions for
>     writeback
>   ARM: EXYNOS5: add machine specific support for backlight
>   ARM: EXYNOS5: add machine specific support for LCD
>   ARM: EXYNOS: Adding DRM platform device
> 
>  arch/arm/boot/dts/exynos5250-smdk5250.dts       |   16 +++
>  arch/arm/boot/dts/exynos5250.dtsi               |    7 ++
>  arch/arm/mach-exynos/Kconfig                    |    1 +
>  arch/arm/mach-exynos/clock-exynos5.c            |   30 ++++--
>  arch/arm/mach-exynos/include/mach/map.h         |    1 +
>  arch/arm/mach-exynos/mach-exynos5-dt.c          |  125 +++++++++++++++++++++++
>  arch/arm/plat-samsung/include/plat/clock.h      |    2 +
>  arch/arm/plat-samsung/include/plat/regs-fb-v4.h |   10 ++
>  arch/arm/plat-samsung/include/plat/regs-fb.h    |   51 +++++++++
>  drivers/video/Kconfig                           |    6 +
>  10 files changed, 239 insertions(+), 10 deletions(-)

[PATCH 0/7] Add device tree based discovery support for drm-fimd

[Jingoo Han]

On July 11, 2012 6:11 PM, Leela Krishna Amudala <l.krishna@samsung.com> wrote:
> 
> From: Leela Krishna <l.krishna@samsung.com>
> 
> The patches are created against "for-next" branch of Kukjin Kim's tree at:
>  git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung.git
> 
> This patch set adds Backlight, LCD support and device tree based discovery
> support for drm-fimd

Your patchset seems FB-FIMD, not DRM-FIMD.

FIMD IP can be used by FB or DRM framework.
Please, use the term clearly.

If your patches use ./drivers/video/s3c-fb.c, please use the term 'FB'.
If your patches use ./drivers/gpu/drm/exynos/*, please use the term 'DRM'.

Best regards,
Jingoo Han

> 
> Leela Krishna (3):
>   ARM: EXYNOS5: add device tree based discovery support for FIMD
>   ARM: EXYNOS5: Add the bus clock for FIMD
>   ARM: EXYNOS5: Set parent clock to fimd
> 
> Leela Krishna Amudala (4):
>   ARM: SAMSUNG: add additional registers and SFR definitions for
>     writeback
>   ARM: EXYNOS5: add machine specific support for backlight
>   ARM: EXYNOS5: add machine specific support for LCD
>   ARM: EXYNOS: Adding DRM platform device
> 
>  arch/arm/boot/dts/exynos5250-smdk5250.dts       |   16 +++
>  arch/arm/boot/dts/exynos5250.dtsi               |    7 ++
>  arch/arm/mach-exynos/Kconfig                    |    1 +
>  arch/arm/mach-exynos/clock-exynos5.c            |   30 ++++--
>  arch/arm/mach-exynos/include/mach/map.h         |    1 +
>  arch/arm/mach-exynos/mach-exynos5-dt.c          |  125 +++++++++++++++++++++++
>  arch/arm/plat-samsung/include/plat/clock.h      |    2 +
>  arch/arm/plat-samsung/include/plat/regs-fb-v4.h |   10 ++
>  arch/arm/plat-samsung/include/plat/regs-fb.h    |   51 +++++++++
>  drivers/video/Kconfig                           |    6 +
>  10 files changed, 239 insertions(+), 10 deletions(-)

RE: [PATCH 3/7] ARM: EXYNOS5: add machine specific support for LCD

[Jingoo Han]

On July 11, 2012 6:42 PM, Leela Krishna Amudala <l.krishna@samsung.com> wrote:

> -----Original Message-----
> From: Leela Krishna Amudala [mailto:l.krishna@samsung.com]
> Sent: Wednesday, July 11, 2012 6:42 PM
> To: linux-arm-kernel@lists.infradead.org
> Cc: grant.likely@secretlab.ca; olofj@google.com; thomas.ab@samsung.com; kgene.kim@samsung.com;
> joshi@samsung.com; jg1.han@samsung.com
> Subject: [PATCH 3/7] ARM: EXYNOS5: add machine specific support for LCD
> 
> This patch adds machine specific support for LCD controller like setting power to LCD
> and adding LCD platform device.
> 
> Signed-off-by: Prathyush K <prathyush.k@samsung.com>
> Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
> ---
>  arch/arm/mach-exynos/mach-exynos5-dt.c |   57 ++++++++++++++++++++++++++++++++
>  1 files changed, 57 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
> index 0a200fd..652a537 100644
> --- a/arch/arm/mach-exynos/mach-exynos5-dt.c
> +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
> @@ -13,6 +13,7 @@
>  #include <linux/serial_core.h>
>  #include <linux/pwm_backlight.h>
>  #include <linux/gpio.h>
> +#include <linux/delay.h>
> 
>  #include <asm/mach/arch.h>
>  #include <asm/hardware/gic.h>
> @@ -25,6 +26,8 @@
> 
>  #include "common.h"
> 
> +#include <video/platform_lcd.h>
> +

Delete this useless line.

> 
>  static int smdk5250_bl_notify(struct device *unused, int brightness)
>  {
> @@ -48,6 +51,55 @@ static struct platform_pwm_backlight_data smdk5250_bl_data = {
>  	.notify		= smdk5250_bl_notify,
>  };
> 
> +static void lcd_set_power(struct plat_lcd_data *pd,
> +			unsigned int power)
> +{
> +
> +	/* reset */
> +	gpio_request_one(EXYNOS5_GPX1(5), GPIOF_OUT_INIT_HIGH, "GPX1");
> +
> +	mdelay(20);
> +	if (power) {
> +		/* fire nRESET on power up */
> +		gpio_set_value(EXYNOS5_GPX1(5), 0);
> +		mdelay(20);
> +		gpio_set_value(EXYNOS5_GPX1(5), 1);
> +		mdelay(20);
> +		gpio_free(EXYNOS5_GPX1(5));
> +	} else {
> +		/* fire nRESET on power off */
> +		gpio_set_value(EXYNOS5_GPX1(5), 0);
> +		mdelay(20);
> +		gpio_set_value(EXYNOS5_GPX1(5), 1);
> +		mdelay(20);
> +		gpio_free(EXYNOS5_GPX1(5));
> +	}
> +	mdelay(20);
> +
> +	/*
> +	 * Request lcd_bl_en GPIO for smdk5250_bl_notify().
> +	 * TODO: Fix this so we are not at risk of requesting the GPIO
> +	 * multiple times, this should be done with device tree, and
> +	 * likely integrated into the plat-samsung/dev-backlight.c init.
> +	 */
> +	gpio_request_one(EXYNOS5_GPX3(0), GPIOF_OUT_INIT_LOW, "GPX3");
> +}
> +
> +static int smdk5250_match_fb(struct plat_lcd_data *pd, struct fb_info *info)
> +{
> +	/* Don't call .set_power callback while unblanking */
> +	return 0;
> +}
> +
> +static struct plat_lcd_data smdk5250_lcd_data = {
> +	.set_power	= lcd_set_power,
> +	.match_fb	= smdk5250_match_fb,
> +};
> +
> +static struct platform_device smdk5250_lcd = {
> +	.name			= "platform-lcd",
> +	.dev.platform_data	= &smdk5250_lcd_data,
> +};
>  /*
>   * The following lookup table is used to override device names when devices
>   * are registered from device tree. This is temporarily added to enable
> @@ -80,6 +132,10 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
>  	{},
>  };
> 
> +static struct platform_device *smdk5250_devices[] __initdata = {
> +	&smdk5250_lcd, /* for platform_lcd device */
> +};
> +
>  static void __init exynos5250_dt_map_io(void)
>  {
>  	exynos_init_io(NULL, 0);
> @@ -91,6 +147,7 @@ static void __init exynos5250_dt_machine_init(void)
>  	samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
>  	of_platform_populate(NULL, of_default_bus_match_table,
>  				exynos5250_auxdata_lookup, NULL);
> +	platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
>  }
> 
>  static char const *exynos5250_dt_compat[] __initdata = {
> --
> 1.7.0.4

[PATCH 3/7] ARM: EXYNOS5: add machine specific support for LCD

[Jingoo Han]

On July 11, 2012 6:42 PM, Leela Krishna Amudala <l.krishna@samsung.com> wrote:

> -----Original Message-----
> From: Leela Krishna Amudala [mailto:l.krishna at samsung.com]
> Sent: Wednesday, July 11, 2012 6:42 PM
> To: linux-arm-kernel at lists.infradead.org
> Cc: grant.likely at secretlab.ca; olofj at google.com; thomas.ab at samsung.com; kgene.kim at samsung.com;
> joshi at samsung.com; jg1.han at samsung.com
> Subject: [PATCH 3/7] ARM: EXYNOS5: add machine specific support for LCD
> 
> This patch adds machine specific support for LCD controller like setting power to LCD
> and adding LCD platform device.
> 
> Signed-off-by: Prathyush K <prathyush.k@samsung.com>
> Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
> ---
>  arch/arm/mach-exynos/mach-exynos5-dt.c |   57 ++++++++++++++++++++++++++++++++
>  1 files changed, 57 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
> index 0a200fd..652a537 100644
> --- a/arch/arm/mach-exynos/mach-exynos5-dt.c
> +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
> @@ -13,6 +13,7 @@
>  #include <linux/serial_core.h>
>  #include <linux/pwm_backlight.h>
>  #include <linux/gpio.h>
> +#include <linux/delay.h>
> 
>  #include <asm/mach/arch.h>
>  #include <asm/hardware/gic.h>
> @@ -25,6 +26,8 @@
> 
>  #include "common.h"
> 
> +#include <video/platform_lcd.h>
> +

Delete this useless line.

> 
>  static int smdk5250_bl_notify(struct device *unused, int brightness)
>  {
> @@ -48,6 +51,55 @@ static struct platform_pwm_backlight_data smdk5250_bl_data = {
>  	.notify		= smdk5250_bl_notify,
>  };
> 
> +static void lcd_set_power(struct plat_lcd_data *pd,
> +			unsigned int power)
> +{
> +
> +	/* reset */
> +	gpio_request_one(EXYNOS5_GPX1(5), GPIOF_OUT_INIT_HIGH, "GPX1");
> +
> +	mdelay(20);
> +	if (power) {
> +		/* fire nRESET on power up */
> +		gpio_set_value(EXYNOS5_GPX1(5), 0);
> +		mdelay(20);
> +		gpio_set_value(EXYNOS5_GPX1(5), 1);
> +		mdelay(20);
> +		gpio_free(EXYNOS5_GPX1(5));
> +	} else {
> +		/* fire nRESET on power off */
> +		gpio_set_value(EXYNOS5_GPX1(5), 0);
> +		mdelay(20);
> +		gpio_set_value(EXYNOS5_GPX1(5), 1);
> +		mdelay(20);
> +		gpio_free(EXYNOS5_GPX1(5));
> +	}
> +	mdelay(20);
> +
> +	/*
> +	 * Request lcd_bl_en GPIO for smdk5250_bl_notify().
> +	 * TODO: Fix this so we are not at risk of requesting the GPIO
> +	 * multiple times, this should be done with device tree, and
> +	 * likely integrated into the plat-samsung/dev-backlight.c init.
> +	 */
> +	gpio_request_one(EXYNOS5_GPX3(0), GPIOF_OUT_INIT_LOW, "GPX3");
> +}
> +
> +static int smdk5250_match_fb(struct plat_lcd_data *pd, struct fb_info *info)
> +{
> +	/* Don't call .set_power callback while unblanking */
> +	return 0;
> +}
> +
> +static struct plat_lcd_data smdk5250_lcd_data = {
> +	.set_power	= lcd_set_power,
> +	.match_fb	= smdk5250_match_fb,
> +};
> +
> +static struct platform_device smdk5250_lcd = {
> +	.name			= "platform-lcd",
> +	.dev.platform_data	= &smdk5250_lcd_data,
> +};
>  /*
>   * The following lookup table is used to override device names when devices
>   * are registered from device tree. This is temporarily added to enable
> @@ -80,6 +132,10 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
>  	{},
>  };
> 
> +static struct platform_device *smdk5250_devices[] __initdata = {
> +	&smdk5250_lcd, /* for platform_lcd device */
> +};
> +
>  static void __init exynos5250_dt_map_io(void)
>  {
>  	exynos_init_io(NULL, 0);
> @@ -91,6 +147,7 @@ static void __init exynos5250_dt_machine_init(void)
>  	samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
>  	of_platform_populate(NULL, of_default_bus_match_table,
>  				exynos5250_auxdata_lookup, NULL);
> +	platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
>  }
> 
>  static char const *exynos5250_dt_compat[] __initdata = {
> --
> 1.7.0.4

RE: [PATCH 4/7] ARM: EXYNOS: Adding DRM platform device

[Jingoo Han]

> -----Original Message-----
> From: Leela Krishna Amudala [mailto:l.krishna@samsung.com]
> Sent: Wednesday, July 11, 2012 6:42 PM
> To: linux-arm-kernel@lists.infradead.org
> Cc: grant.likely@secretlab.ca; olofj@google.com; thomas.ab@samsung.com; kgene.kim@samsung.com;
> joshi@samsung.com; jg1.han@samsung.com
> Subject: [PATCH 4/7] ARM: EXYNOS: Adding DRM platform device
> 
> Add DRM platform device to machine file for exynos5.
> 
> Signed-off-by: Prathyush K <prathyush.k@samsung.com>
> Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
> ---
>  arch/arm/mach-exynos/mach-exynos5-dt.c |   27 +++++++++++++++++++++++++++
>  1 files changed, 27 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
> index 652a537..a91c928 100644
> --- a/arch/arm/mach-exynos/mach-exynos5-dt.c
> +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
> @@ -17,6 +17,7 @@
> 
>  #include <asm/mach/arch.h>
>  #include <asm/hardware/gic.h>
> +#include <asm/io.h>
>  #include <mach/map.h>
> 
>  #include <plat/cpu.h>
> @@ -29,6 +30,22 @@
>  #include <video/platform_lcd.h>
> 
> 
> +static void exynos_fimd_gpio_setup_24bpp(void)
> +{
> +	unsigned int reg = 0;
> +	/*
> +	 * Set DISP1BLK_CFG register for Display path selection
> +	 * FIMD of DISP1_BLK Bypass selection : DISP1BLK_CFG[15]
> +	 * ---------------------
> +	 * 0 | MIE/MDNIE
> +	 * 1 | FIMD : selected
> +	 */
> +	reg = __raw_readl(S3C_VA_SYS + 0x0214);
> +	reg &= ~(1 << 15);      /* To save other reset values */
> +	reg |= (1 << 15);
> +	__raw_writel(reg, S3C_VA_SYS + 0x0214);
> +}
> +
>  static int smdk5250_bl_notify(struct device *unused, int brightness)
>  {
>  	/* manage lcd_bl_en signal */
> @@ -51,6 +68,14 @@ static struct platform_pwm_backlight_data smdk5250_bl_data = {
>  	.notify		= smdk5250_bl_notify,
>  };
> 
> +static struct platform_device exynos_drm_device = {
> +	.name		= "exynos-drm",
> +	.dev = {
> +		.dma_mask = &exynos_drm_device.dev.coherent_dma_mask,
> +		.coherent_dma_mask = 0xffffffffUL,
> +	}
> +};
> +


If your patches use ./drivers/video/s3c-fb.c, please use the term 'FB'.
In this case, this 'exynos_drm_device' is not unnecessary.

Um... Have you tested this patchset with board such as SMDK5250?
Does it work properly?


>  static void lcd_set_power(struct plat_lcd_data *pd,
>  			unsigned int power)
>  {
> @@ -134,6 +159,7 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
> 
>  static struct platform_device *smdk5250_devices[] __initdata = {
>  	&smdk5250_lcd, /* for platform_lcd device */
> +	&exynos_drm_device,
>  };
> 
>  static void __init exynos5250_dt_map_io(void)
> @@ -147,6 +173,7 @@ static void __init exynos5250_dt_machine_init(void)
>  	samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
>  	of_platform_populate(NULL, of_default_bus_match_table,
>  				exynos5250_auxdata_lookup, NULL);
> +	exynos_fimd_gpio_setup_24bpp();
>  	platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
>  }
> 
> --
> 1.7.0.4

[PATCH 4/7] ARM: EXYNOS: Adding DRM platform device

[Jingoo Han]

> -----Original Message-----
> From: Leela Krishna Amudala [mailto:l.krishna at samsung.com]
> Sent: Wednesday, July 11, 2012 6:42 PM
> To: linux-arm-kernel at lists.infradead.org
> Cc: grant.likely at secretlab.ca; olofj at google.com; thomas.ab at samsung.com; kgene.kim at samsung.com;
> joshi at samsung.com; jg1.han at samsung.com
> Subject: [PATCH 4/7] ARM: EXYNOS: Adding DRM platform device
> 
> Add DRM platform device to machine file for exynos5.
> 
> Signed-off-by: Prathyush K <prathyush.k@samsung.com>
> Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
> ---
>  arch/arm/mach-exynos/mach-exynos5-dt.c |   27 +++++++++++++++++++++++++++
>  1 files changed, 27 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
> index 652a537..a91c928 100644
> --- a/arch/arm/mach-exynos/mach-exynos5-dt.c
> +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
> @@ -17,6 +17,7 @@
> 
>  #include <asm/mach/arch.h>
>  #include <asm/hardware/gic.h>
> +#include <asm/io.h>
>  #include <mach/map.h>
> 
>  #include <plat/cpu.h>
> @@ -29,6 +30,22 @@
>  #include <video/platform_lcd.h>
> 
> 
> +static void exynos_fimd_gpio_setup_24bpp(void)
> +{
> +	unsigned int reg = 0;
> +	/*
> +	 * Set DISP1BLK_CFG register for Display path selection
> +	 * FIMD of DISP1_BLK Bypass selection : DISP1BLK_CFG[15]
> +	 * ---------------------
> +	 * 0 | MIE/MDNIE
> +	 * 1 | FIMD : selected
> +	 */
> +	reg = __raw_readl(S3C_VA_SYS + 0x0214);
> +	reg &= ~(1 << 15);      /* To save other reset values */
> +	reg |= (1 << 15);
> +	__raw_writel(reg, S3C_VA_SYS + 0x0214);
> +}
> +
>  static int smdk5250_bl_notify(struct device *unused, int brightness)
>  {
>  	/* manage lcd_bl_en signal */
> @@ -51,6 +68,14 @@ static struct platform_pwm_backlight_data smdk5250_bl_data = {
>  	.notify		= smdk5250_bl_notify,
>  };
> 
> +static struct platform_device exynos_drm_device = {
> +	.name		= "exynos-drm",
> +	.dev = {
> +		.dma_mask = &exynos_drm_device.dev.coherent_dma_mask,
> +		.coherent_dma_mask = 0xffffffffUL,
> +	}
> +};
> +


If your patches use ./drivers/video/s3c-fb.c, please use the term 'FB'.
In this case, this 'exynos_drm_device' is not unnecessary.

Um... Have you tested this patchset with board such as SMDK5250?
Does it work properly?


>  static void lcd_set_power(struct plat_lcd_data *pd,
>  			unsigned int power)
>  {
> @@ -134,6 +159,7 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
> 
>  static struct platform_device *smdk5250_devices[] __initdata = {
>  	&smdk5250_lcd, /* for platform_lcd device */
> +	&exynos_drm_device,
>  };
> 
>  static void __init exynos5250_dt_map_io(void)
> @@ -147,6 +173,7 @@ static void __init exynos5250_dt_machine_init(void)
>  	samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
>  	of_platform_populate(NULL, of_default_bus_match_table,
>  				exynos5250_auxdata_lookup, NULL);
> +	exynos_fimd_gpio_setup_24bpp();
>  	platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
>  }
> 
> --
> 1.7.0.4

RE: [PATCH 7/7] ARM: EXYNOS5: Set parent clock to fimd

[Jingoo Han]

On July 11, 2012 6:42 PM, Leela Krishna Amudala <l.krishna@samsung.com> wrote:

> 
> From: Leela Krishna <l.krishna@samsung.com>
> 
> This patch sets mout_mpll_user as parent clock to fimd also
> sets Fimd source clock rate to 800 MHz for MIPI LCD
> 
> Signed-off-by: Leela Krishna <l.krishna@samsung.com>
> ---
>  arch/arm/mach-exynos/clock-exynos5.c       |   25 +++++++++++++++----------
>  arch/arm/mach-exynos/mach-exynos5-dt.c     |   11 +++++++++++
>  arch/arm/plat-samsung/include/plat/clock.h |    2 ++
>  3 files changed, 28 insertions(+), 10 deletions(-)
> 
> diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c
> index 61bf88d..a0d65f6 100644
> --- a/arch/arm/mach-exynos/clock-exynos5.c
> +++ b/arch/arm/mach-exynos/clock-exynos5.c
> @@ -1039,6 +1039,18 @@ static struct clksrc_clk exynos5_clk_sclk_mmc3 = {
>  	.reg_div = { .reg = EXYNOS5_CLKDIV_FSYS2, .shift = 24, .size = 8 },
>  };
> 
> +struct clksrc_clk exynos5_clk_sclk_fimd = {
> +	.clk	= {
> +		.name		= "sclk_fimd",
> +		.devname	= "exynos5-fb",
> +		.enable		= exynos5_clksrc_mask_disp1_0_ctrl,
> +		.ctrlbit	= (1 << 0),
> +	},
> +	.sources = &exynos5_clkset_group,
> +	.reg_src = { .reg = EXYNOS5_CLKSRC_DISP1_0, .shift = 0,	.size = 4 },

Please use spaces instead of tab.

> +	.reg_div = { .reg = EXYNOS5_CLKDIV_DISP1_0, .shift = 0, .size = 4 },
> +};
> +
>  static struct clksrc_clk exynos5_clksrcs[] = {
>  	{
>  		.clk	= {
> @@ -1050,16 +1062,6 @@ static struct clksrc_clk exynos5_clksrcs[] = {
>  		.reg_div = { .reg = EXYNOS5_CLKDIV_FSYS3, .shift = 8, .size = 8 },
>  	}, {
>  		.clk	= {
> -			.name		= "sclk_fimd",
> -			.devname	= "exynos5-fb",
> -			.enable		= exynos5_clksrc_mask_disp1_0_ctrl,
> -			.ctrlbit	= (1 << 0),
> -		},
> -		.sources = &exynos5_clkset_group,
> -		.reg_src = { .reg = EXYNOS5_CLKSRC_DISP1_0, .shift = 0, .size = 4 },
> -		.reg_div = { .reg = EXYNOS5_CLKDIV_DISP1_0, .shift = 0, .size = 4 },
> -	}, {
> -		.clk	= {
>  			.name		= "aclk_266_gscl",
>  		},
>  		.sources = &clk_src_gscl_266,
> @@ -1153,6 +1155,7 @@ static struct clksrc_clk *exynos5_sysclks[] = {
>  	&exynos5_clk_dout_mmc4,
>  	&exynos5_clk_aclk_acp,
>  	&exynos5_clk_pclk_acp,
> +	&exynos5_clk_sclk_fimd,
>  };
> 
>  static struct clk *exynos5_clk_cdev[] = {
> @@ -1402,6 +1405,8 @@ void __init_or_cpufreq exynos5_setup_clocks(void)
> 
>  	clk_set_rate(&exynos5_clk_aclk_acp.clk, 267000000);
>  	clk_set_rate(&exynos5_clk_pclk_acp.clk, 134000000);
> +	clk_set_parent(&exynos5_clk_sclk_fimd.clk,
> +			&exynos5_clk_mout_mpll_user.clk);
> 
>  	for (ptr = 0; ptr < ARRAY_SIZE(exynos5_clksrcs); ptr++)
>  		s3c_set_clksrc(&exynos5_clksrcs[ptr], true);
> diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
> index 9d5bccc..248ca58 100644
> --- a/arch/arm/mach-exynos/mach-exynos5-dt.c
> +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
> @@ -24,6 +24,9 @@
>  #include <plat/regs-serial.h>
>  #include <plat/backlight.h>
>  #include <plat/gpio-cfg.h>
> +#include <plat/clock.h>
> +#include <plat/s5p-clock.h>
> +#include <plat/clock-clksrc.h>
> 
>  #include "common.h"
> 
> @@ -172,9 +175,17 @@ static void __init exynos5250_dt_map_io(void)
> 
>  static void __init exynos5250_dt_machine_init(void)
>  {
> +	struct device_node *fimd_node;
> +
>  	samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
>  	of_platform_populate(NULL, of_default_bus_match_table,
>  				exynos5250_auxdata_lookup, NULL);
> +

Delete this useless line.

> +	fimd_node = of_find_node_with_property(NULL, "supports-mipi-panel");
> +	if (of_get_property(fimd_node, "supports-mipi-panel", NULL))
> +		clk_set_rate(&exynos5_clk_sclk_fimd.clk, 800000000);
> +	of_node_put(fimd_node);
> +
>  	exynos_fimd_gpio_setup_24bpp();
>  	platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
>  }
> diff --git a/arch/arm/plat-samsung/include/plat/clock.h b/arch/arm/plat-samsung/include/plat/clock.h
> index a62753d..3d27783 100644
> --- a/arch/arm/plat-samsung/include/plat/clock.h
> +++ b/arch/arm/plat-samsung/include/plat/clock.h
> @@ -83,6 +83,8 @@ extern struct clk clk_ext;
>  extern struct clksrc_clk clk_epllref;
>  extern struct clksrc_clk clk_esysclk;
> 
> +extern struct clksrc_clk exynos5_clk_sclk_fimd;
> +
>  /* S3C64XX specific clocks */
>  extern struct clk clk_h2;
>  extern struct clk clk_27m;
> --
> 1.7.0.4

[PATCH 7/7] ARM: EXYNOS5: Set parent clock to fimd

[Jingoo Han]

On July 11, 2012 6:42 PM, Leela Krishna Amudala <l.krishna@samsung.com> wrote:

> 
> From: Leela Krishna <l.krishna@samsung.com>
> 
> This patch sets mout_mpll_user as parent clock to fimd also
> sets Fimd source clock rate to 800 MHz for MIPI LCD
> 
> Signed-off-by: Leela Krishna <l.krishna@samsung.com>
> ---
>  arch/arm/mach-exynos/clock-exynos5.c       |   25 +++++++++++++++----------
>  arch/arm/mach-exynos/mach-exynos5-dt.c     |   11 +++++++++++
>  arch/arm/plat-samsung/include/plat/clock.h |    2 ++
>  3 files changed, 28 insertions(+), 10 deletions(-)
> 
> diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c
> index 61bf88d..a0d65f6 100644
> --- a/arch/arm/mach-exynos/clock-exynos5.c
> +++ b/arch/arm/mach-exynos/clock-exynos5.c
> @@ -1039,6 +1039,18 @@ static struct clksrc_clk exynos5_clk_sclk_mmc3 = {
>  	.reg_div = { .reg = EXYNOS5_CLKDIV_FSYS2, .shift = 24, .size = 8 },
>  };
> 
> +struct clksrc_clk exynos5_clk_sclk_fimd = {
> +	.clk	= {
> +		.name		= "sclk_fimd",
> +		.devname	= "exynos5-fb",
> +		.enable		= exynos5_clksrc_mask_disp1_0_ctrl,
> +		.ctrlbit	= (1 << 0),
> +	},
> +	.sources = &exynos5_clkset_group,
> +	.reg_src = { .reg = EXYNOS5_CLKSRC_DISP1_0, .shift = 0,	.size = 4 },

Please use spaces instead of tab.

> +	.reg_div = { .reg = EXYNOS5_CLKDIV_DISP1_0, .shift = 0, .size = 4 },
> +};
> +
>  static struct clksrc_clk exynos5_clksrcs[] = {
>  	{
>  		.clk	= {
> @@ -1050,16 +1062,6 @@ static struct clksrc_clk exynos5_clksrcs[] = {
>  		.reg_div = { .reg = EXYNOS5_CLKDIV_FSYS3, .shift = 8, .size = 8 },
>  	}, {
>  		.clk	= {
> -			.name		= "sclk_fimd",
> -			.devname	= "exynos5-fb",
> -			.enable		= exynos5_clksrc_mask_disp1_0_ctrl,
> -			.ctrlbit	= (1 << 0),
> -		},
> -		.sources = &exynos5_clkset_group,
> -		.reg_src = { .reg = EXYNOS5_CLKSRC_DISP1_0, .shift = 0, .size = 4 },
> -		.reg_div = { .reg = EXYNOS5_CLKDIV_DISP1_0, .shift = 0, .size = 4 },
> -	}, {
> -		.clk	= {
>  			.name		= "aclk_266_gscl",
>  		},
>  		.sources = &clk_src_gscl_266,
> @@ -1153,6 +1155,7 @@ static struct clksrc_clk *exynos5_sysclks[] = {
>  	&exynos5_clk_dout_mmc4,
>  	&exynos5_clk_aclk_acp,
>  	&exynos5_clk_pclk_acp,
> +	&exynos5_clk_sclk_fimd,
>  };
> 
>  static struct clk *exynos5_clk_cdev[] = {
> @@ -1402,6 +1405,8 @@ void __init_or_cpufreq exynos5_setup_clocks(void)
> 
>  	clk_set_rate(&exynos5_clk_aclk_acp.clk, 267000000);
>  	clk_set_rate(&exynos5_clk_pclk_acp.clk, 134000000);
> +	clk_set_parent(&exynos5_clk_sclk_fimd.clk,
> +			&exynos5_clk_mout_mpll_user.clk);
> 
>  	for (ptr = 0; ptr < ARRAY_SIZE(exynos5_clksrcs); ptr++)
>  		s3c_set_clksrc(&exynos5_clksrcs[ptr], true);
> diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
> index 9d5bccc..248ca58 100644
> --- a/arch/arm/mach-exynos/mach-exynos5-dt.c
> +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
> @@ -24,6 +24,9 @@
>  #include <plat/regs-serial.h>
>  #include <plat/backlight.h>
>  #include <plat/gpio-cfg.h>
> +#include <plat/clock.h>
> +#include <plat/s5p-clock.h>
> +#include <plat/clock-clksrc.h>
> 
>  #include "common.h"
> 
> @@ -172,9 +175,17 @@ static void __init exynos5250_dt_map_io(void)
> 
>  static void __init exynos5250_dt_machine_init(void)
>  {
> +	struct device_node *fimd_node;
> +
>  	samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
>  	of_platform_populate(NULL, of_default_bus_match_table,
>  				exynos5250_auxdata_lookup, NULL);
> +

Delete this useless line.

> +	fimd_node = of_find_node_with_property(NULL, "supports-mipi-panel");
> +	if (of_get_property(fimd_node, "supports-mipi-panel", NULL))
> +		clk_set_rate(&exynos5_clk_sclk_fimd.clk, 800000000);
> +	of_node_put(fimd_node);
> +
>  	exynos_fimd_gpio_setup_24bpp();
>  	platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
>  }
> diff --git a/arch/arm/plat-samsung/include/plat/clock.h b/arch/arm/plat-samsung/include/plat/clock.h
> index a62753d..3d27783 100644
> --- a/arch/arm/plat-samsung/include/plat/clock.h
> +++ b/arch/arm/plat-samsung/include/plat/clock.h
> @@ -83,6 +83,8 @@ extern struct clk clk_ext;
>  extern struct clksrc_clk clk_epllref;
>  extern struct clksrc_clk clk_esysclk;
> 
> +extern struct clksrc_clk exynos5_clk_sclk_fimd;
> +
>  /* S3C64XX specific clocks */
>  extern struct clk clk_h2;
>  extern struct clk clk_27m;
> --
> 1.7.0.4

Re: [PATCH 4/7] ARM: EXYNOS: Adding DRM platform device

[Leela Krishna Amudala]

On Wed, Jul 11, 2012 at 3:51 PM, Jingoo Han <jg1.han@samsung.com> wrote:
>
>
>> -----Original Message-----
>> From: Leela Krishna Amudala [mailto:l.krishna@samsung.com]
>> Sent: Wednesday, July 11, 2012 6:42 PM
>> To: linux-arm-kernel@lists.infradead.org
>> Cc: grant.likely@secretlab.ca; olofj@google.com; thomas.ab@samsung.com; kgene.kim@samsung.com;
>> joshi@samsung.com; jg1.han@samsung.com
>> Subject: [PATCH 4/7] ARM: EXYNOS: Adding DRM platform device
>>
>> Add DRM platform device to machine file for exynos5.
>>
>> Signed-off-by: Prathyush K <prathyush.k@samsung.com>
>> Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
>> ---
>>  arch/arm/mach-exynos/mach-exynos5-dt.c |   27 +++++++++++++++++++++++++++
>>  1 files changed, 27 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
>> index 652a537..a91c928 100644
>> --- a/arch/arm/mach-exynos/mach-exynos5-dt.c
>> +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
>> @@ -17,6 +17,7 @@
>>
>>  #include <asm/mach/arch.h>
>>  #include <asm/hardware/gic.h>
>> +#include <asm/io.h>
>>  #include <mach/map.h>
>>
>>  #include <plat/cpu.h>
>> @@ -29,6 +30,22 @@
>>  #include <video/platform_lcd.h>
>>
>>
>> +static void exynos_fimd_gpio_setup_24bpp(void)
>> +{
>> +     unsigned int reg = 0;
>> +     /*
>> +      * Set DISP1BLK_CFG register for Display path selection
>> +      * FIMD of DISP1_BLK Bypass selection : DISP1BLK_CFG[15]
>> +      * ---------------------
>> +      * 0 | MIE/MDNIE
>> +      * 1 | FIMD : selected
>> +      */
>> +     reg = __raw_readl(S3C_VA_SYS + 0x0214);
>> +     reg &= ~(1 << 15);      /* To save other reset values */
>> +     reg |= (1 << 15);
>> +     __raw_writel(reg, S3C_VA_SYS + 0x0214);
>> +}
>> +
>>  static int smdk5250_bl_notify(struct device *unused, int brightness)
>>  {
>>       /* manage lcd_bl_en signal */
>> @@ -51,6 +68,14 @@ static struct platform_pwm_backlight_data smdk5250_bl_data = {
>>       .notify         = smdk5250_bl_notify,
>>  };
>>
>> +static struct platform_device exynos_drm_device = {
>> +     .name           = "exynos-drm",
>> +     .dev = {
>> +             .dma_mask = &exynos_drm_device.dev.coherent_dma_mask,
>> +             .coherent_dma_mask = 0xffffffffUL,
>> +     }
>> +};
>> +
>
>
> If your patches use ./drivers/video/s3c-fb.c, please use the term 'FB'.
> In this case, this 'exynos_drm_device' is not unnecessary.
>
> Um... Have you tested this patchset with board such as SMDK5250?
> Does it work properly?
>
>

Yes, I tested this patchset with smdk5250 board, and I could see bootup logo.

>>  static void lcd_set_power(struct plat_lcd_data *pd,
>>                       unsigned int power)
>>  {
>> @@ -134,6 +159,7 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
>>
>>  static struct platform_device *smdk5250_devices[] __initdata = {
>>       &smdk5250_lcd, /* for platform_lcd device */
>> +     &exynos_drm_device,
>>  };
>>
>>  static void __init exynos5250_dt_map_io(void)
>> @@ -147,6 +173,7 @@ static void __init exynos5250_dt_machine_init(void)
>>       samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
>>       of_platform_populate(NULL, of_default_bus_match_table,
>>                               exynos5250_auxdata_lookup, NULL);
>> +     exynos_fimd_gpio_setup_24bpp();
>>       platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
>>  }
>>
>> --
>> 1.7.0.4
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH 4/7] ARM: EXYNOS: Adding DRM platform device

[Leela Krishna Amudala]

On Wed, Jul 11, 2012 at 3:51 PM, Jingoo Han <jg1.han@samsung.com> wrote:
>
>
>> -----Original Message-----
>> From: Leela Krishna Amudala [mailto:l.krishna at samsung.com]
>> Sent: Wednesday, July 11, 2012 6:42 PM
>> To: linux-arm-kernel at lists.infradead.org
>> Cc: grant.likely at secretlab.ca; olofj at google.com; thomas.ab at samsung.com; kgene.kim at samsung.com;
>> joshi at samsung.com; jg1.han at samsung.com
>> Subject: [PATCH 4/7] ARM: EXYNOS: Adding DRM platform device
>>
>> Add DRM platform device to machine file for exynos5.
>>
>> Signed-off-by: Prathyush K <prathyush.k@samsung.com>
>> Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
>> ---
>>  arch/arm/mach-exynos/mach-exynos5-dt.c |   27 +++++++++++++++++++++++++++
>>  1 files changed, 27 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
>> index 652a537..a91c928 100644
>> --- a/arch/arm/mach-exynos/mach-exynos5-dt.c
>> +++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
>> @@ -17,6 +17,7 @@
>>
>>  #include <asm/mach/arch.h>
>>  #include <asm/hardware/gic.h>
>> +#include <asm/io.h>
>>  #include <mach/map.h>
>>
>>  #include <plat/cpu.h>
>> @@ -29,6 +30,22 @@
>>  #include <video/platform_lcd.h>
>>
>>
>> +static void exynos_fimd_gpio_setup_24bpp(void)
>> +{
>> +     unsigned int reg = 0;
>> +     /*
>> +      * Set DISP1BLK_CFG register for Display path selection
>> +      * FIMD of DISP1_BLK Bypass selection : DISP1BLK_CFG[15]
>> +      * ---------------------
>> +      * 0 | MIE/MDNIE
>> +      * 1 | FIMD : selected
>> +      */
>> +     reg = __raw_readl(S3C_VA_SYS + 0x0214);
>> +     reg &= ~(1 << 15);      /* To save other reset values */
>> +     reg |= (1 << 15);
>> +     __raw_writel(reg, S3C_VA_SYS + 0x0214);
>> +}
>> +
>>  static int smdk5250_bl_notify(struct device *unused, int brightness)
>>  {
>>       /* manage lcd_bl_en signal */
>> @@ -51,6 +68,14 @@ static struct platform_pwm_backlight_data smdk5250_bl_data = {
>>       .notify         = smdk5250_bl_notify,
>>  };
>>
>> +static struct platform_device exynos_drm_device = {
>> +     .name           = "exynos-drm",
>> +     .dev = {
>> +             .dma_mask = &exynos_drm_device.dev.coherent_dma_mask,
>> +             .coherent_dma_mask = 0xffffffffUL,
>> +     }
>> +};
>> +
>
>
> If your patches use ./drivers/video/s3c-fb.c, please use the term 'FB'.
> In this case, this 'exynos_drm_device' is not unnecessary.
>
> Um... Have you tested this patchset with board such as SMDK5250?
> Does it work properly?
>
>

Yes, I tested this patchset with smdk5250 board, and I could see bootup logo.

>>  static void lcd_set_power(struct plat_lcd_data *pd,
>>                       unsigned int power)
>>  {
>> @@ -134,6 +159,7 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
>>
>>  static struct platform_device *smdk5250_devices[] __initdata = {
>>       &smdk5250_lcd, /* for platform_lcd device */
>> +     &exynos_drm_device,
>>  };
>>
>>  static void __init exynos5250_dt_map_io(void)
>> @@ -147,6 +173,7 @@ static void __init exynos5250_dt_machine_init(void)
>>       samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
>>       of_platform_populate(NULL, of_default_bus_match_table,
>>                               exynos5250_auxdata_lookup, NULL);
>> +     exynos_fimd_gpio_setup_24bpp();
>>       platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
>>  }
>>
>> --
>> 1.7.0.4
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
> the body of a message to majordomo at vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH 7/7] ARM: EXYNOS5: Set parent clock to fimd

[Leela Krishna Amudala]

From: Leela Krishna <l.krishna-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>

This patch sets mout_mpll_user as parent clock to fimd also
sets Fimd source clock rate to 800 MHz for MIPI LCD

Signed-off-by: Leela Krishna Amudala <l.krishna-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
---
 arch/arm/mach-exynos/clock-exynos5.c       |   25 +++++++++++++++----------
 arch/arm/mach-exynos/mach-exynos5-dt.c     |   11 +++++++++++
 arch/arm/plat-samsung/include/plat/clock.h |    2 ++
 3 files changed, 28 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c
index 61bf88d..a0d65f6 100644
--- a/arch/arm/mach-exynos/clock-exynos5.c
+++ b/arch/arm/mach-exynos/clock-exynos5.c
@@ -1039,6 +1039,18 @@ static struct clksrc_clk exynos5_clk_sclk_mmc3 = {
 	.reg_div = { .reg = EXYNOS5_CLKDIV_FSYS2, .shift = 24, .size = 8 },
 };
 
+struct clksrc_clk exynos5_clk_sclk_fimd = {
+	.clk	= {
+		.name		= "sclk_fimd",
+		.devname	= "exynos5-fb",
+		.enable		= exynos5_clksrc_mask_disp1_0_ctrl,
+		.ctrlbit	= (1 << 0),
+	},
+	.sources = &exynos5_clkset_group,
+	.reg_src = { .reg = EXYNOS5_CLKSRC_DISP1_0, .shift = 0,	.size = 4 },
+	.reg_div = { .reg = EXYNOS5_CLKDIV_DISP1_0, .shift = 0, .size = 4 },
+};
+
 static struct clksrc_clk exynos5_clksrcs[] = {
 	{
 		.clk	= {
@@ -1050,16 +1062,6 @@ static struct clksrc_clk exynos5_clksrcs[] = {
 		.reg_div = { .reg = EXYNOS5_CLKDIV_FSYS3, .shift = 8, .size = 8 },
 	}, {
 		.clk	= {
-			.name		= "sclk_fimd",
-			.devname	= "exynos5-fb",
-			.enable		= exynos5_clksrc_mask_disp1_0_ctrl,
-			.ctrlbit	= (1 << 0),
-		},
-		.sources = &exynos5_clkset_group,
-		.reg_src = { .reg = EXYNOS5_CLKSRC_DISP1_0, .shift = 0, .size = 4 },
-		.reg_div = { .reg = EXYNOS5_CLKDIV_DISP1_0, .shift = 0, .size = 4 },
-	}, {
-		.clk	= {
 			.name		= "aclk_266_gscl",
 		},
 		.sources = &clk_src_gscl_266,
@@ -1153,6 +1155,7 @@ static struct clksrc_clk *exynos5_sysclks[] = {
 	&exynos5_clk_dout_mmc4,
 	&exynos5_clk_aclk_acp,
 	&exynos5_clk_pclk_acp,
+	&exynos5_clk_sclk_fimd,
 };
 
 static struct clk *exynos5_clk_cdev[] = {
@@ -1402,6 +1405,8 @@ void __init_or_cpufreq exynos5_setup_clocks(void)
 
 	clk_set_rate(&exynos5_clk_aclk_acp.clk, 267000000);
 	clk_set_rate(&exynos5_clk_pclk_acp.clk, 134000000);
+	clk_set_parent(&exynos5_clk_sclk_fimd.clk,
+			&exynos5_clk_mout_mpll_user.clk);
 
 	for (ptr = 0; ptr < ARRAY_SIZE(exynos5_clksrcs); ptr++)
 		s3c_set_clksrc(&exynos5_clksrcs[ptr], true);
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index 9d5bccc..248ca58 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -24,6 +24,9 @@
 #include <plat/regs-serial.h>
 #include <plat/backlight.h>
 #include <plat/gpio-cfg.h>
+#include <plat/clock.h>
+#include <plat/s5p-clock.h>
+#include <plat/clock-clksrc.h>
 
 #include "common.h"
 
@@ -172,9 +175,17 @@ static void __init exynos5250_dt_map_io(void)
 
 static void __init exynos5250_dt_machine_init(void)
 {
+	struct device_node *fimd_node;
+
 	samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
 	of_platform_populate(NULL, of_default_bus_match_table,
 				exynos5250_auxdata_lookup, NULL);
+
+	fimd_node = of_find_node_with_property(NULL, "supports-mipi-panel");
+	if (of_get_property(fimd_node, "supports-mipi-panel", NULL))
+		clk_set_rate(&exynos5_clk_sclk_fimd.clk, 800000000);
+	of_node_put(fimd_node);
+
 	exynos_fimd_gpio_setup_24bpp();
 	platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
 }
diff --git a/arch/arm/plat-samsung/include/plat/clock.h b/arch/arm/plat-samsung/include/plat/clock.h
index a62753d..3d27783 100644
--- a/arch/arm/plat-samsung/include/plat/clock.h
+++ b/arch/arm/plat-samsung/include/plat/clock.h
@@ -83,6 +83,8 @@ extern struct clk clk_ext;
 extern struct clksrc_clk clk_epllref;
 extern struct clksrc_clk clk_esysclk;
 
+extern struct clksrc_clk exynos5_clk_sclk_fimd;
+
 /* S3C64XX specific clocks */
 extern struct clk clk_h2;
 extern struct clk clk_27m;
-- 
1.7.0.4

[PATCH 7/7] ARM: EXYNOS5: Set parent clock to fimd

[Leela Krishna Amudala]

From: Leela Krishna <l.krishna@samsung.com>

This patch sets mout_mpll_user as parent clock to fimd also
sets Fimd source clock rate to 800 MHz for MIPI LCD

Signed-off-by: Leela Krishna <l.krishna@samsung.com>
---
 arch/arm/mach-exynos/clock-exynos5.c       |   25 +++++++++++++++----------
 arch/arm/mach-exynos/mach-exynos5-dt.c     |   11 +++++++++++
 arch/arm/plat-samsung/include/plat/clock.h |    2 ++
 3 files changed, 28 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c
index 61bf88d..a0d65f6 100644
--- a/arch/arm/mach-exynos/clock-exynos5.c
+++ b/arch/arm/mach-exynos/clock-exynos5.c
@@ -1039,6 +1039,18 @@ static struct clksrc_clk exynos5_clk_sclk_mmc3 = {
 	.reg_div = { .reg = EXYNOS5_CLKDIV_FSYS2, .shift = 24, .size = 8 },
 };
 
+struct clksrc_clk exynos5_clk_sclk_fimd = {
+	.clk	= {
+		.name		= "sclk_fimd",
+		.devname	= "exynos5-fb",
+		.enable		= exynos5_clksrc_mask_disp1_0_ctrl,
+		.ctrlbit	= (1 << 0),
+	},
+	.sources = &exynos5_clkset_group,
+	.reg_src = { .reg = EXYNOS5_CLKSRC_DISP1_0, .shift = 0,	.size = 4 },
+	.reg_div = { .reg = EXYNOS5_CLKDIV_DISP1_0, .shift = 0, .size = 4 },
+};
+
 static struct clksrc_clk exynos5_clksrcs[] = {
 	{
 		.clk	= {
@@ -1050,16 +1062,6 @@ static struct clksrc_clk exynos5_clksrcs[] = {
 		.reg_div = { .reg = EXYNOS5_CLKDIV_FSYS3, .shift = 8, .size = 8 },
 	}, {
 		.clk	= {
-			.name		= "sclk_fimd",
-			.devname	= "exynos5-fb",
-			.enable		= exynos5_clksrc_mask_disp1_0_ctrl,
-			.ctrlbit	= (1 << 0),
-		},
-		.sources = &exynos5_clkset_group,
-		.reg_src = { .reg = EXYNOS5_CLKSRC_DISP1_0, .shift = 0, .size = 4 },
-		.reg_div = { .reg = EXYNOS5_CLKDIV_DISP1_0, .shift = 0, .size = 4 },
-	}, {
-		.clk	= {
 			.name		= "aclk_266_gscl",
 		},
 		.sources = &clk_src_gscl_266,
@@ -1153,6 +1155,7 @@ static struct clksrc_clk *exynos5_sysclks[] = {
 	&exynos5_clk_dout_mmc4,
 	&exynos5_clk_aclk_acp,
 	&exynos5_clk_pclk_acp,
+	&exynos5_clk_sclk_fimd,
 };
 
 static struct clk *exynos5_clk_cdev[] = {
@@ -1402,6 +1405,8 @@ void __init_or_cpufreq exynos5_setup_clocks(void)
 
 	clk_set_rate(&exynos5_clk_aclk_acp.clk, 267000000);
 	clk_set_rate(&exynos5_clk_pclk_acp.clk, 134000000);
+	clk_set_parent(&exynos5_clk_sclk_fimd.clk,
+			&exynos5_clk_mout_mpll_user.clk);
 
 	for (ptr = 0; ptr < ARRAY_SIZE(exynos5_clksrcs); ptr++)
 		s3c_set_clksrc(&exynos5_clksrcs[ptr], true);
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index 9d5bccc..248ca58 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -24,6 +24,9 @@
 #include <plat/regs-serial.h>
 #include <plat/backlight.h>
 #include <plat/gpio-cfg.h>
+#include <plat/clock.h>
+#include <plat/s5p-clock.h>
+#include <plat/clock-clksrc.h>
 
 #include "common.h"
 
@@ -172,9 +175,17 @@ static void __init exynos5250_dt_map_io(void)
 
 static void __init exynos5250_dt_machine_init(void)
 {
+	struct device_node *fimd_node;
+
 	samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
 	of_platform_populate(NULL, of_default_bus_match_table,
 				exynos5250_auxdata_lookup, NULL);
+
+	fimd_node = of_find_node_with_property(NULL, "supports-mipi-panel");
+	if (of_get_property(fimd_node, "supports-mipi-panel", NULL))
+		clk_set_rate(&exynos5_clk_sclk_fimd.clk, 800000000);
+	of_node_put(fimd_node);
+
 	exynos_fimd_gpio_setup_24bpp();
 	platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
 }
diff --git a/arch/arm/plat-samsung/include/plat/clock.h b/arch/arm/plat-samsung/include/plat/clock.h
index a62753d..3d27783 100644
--- a/arch/arm/plat-samsung/include/plat/clock.h
+++ b/arch/arm/plat-samsung/include/plat/clock.h
@@ -83,6 +83,8 @@ extern struct clk clk_ext;
 extern struct clksrc_clk clk_epllref;
 extern struct clksrc_clk clk_esysclk;
 
+extern struct clksrc_clk exynos5_clk_sclk_fimd;
+
 /* S3C64XX specific clocks */
 extern struct clk clk_h2;
 extern struct clk clk_27m;
-- 
1.7.0.4