* [patch v4 1/9] rockchip: video: vop: Use endpoint compatible string to find VOP mode
2021-03-05 10:27 [patch v4 0/9] rk3399 (Pinebook pro) EDP support Arnaud Patard
@ 2021-03-05 10:27 ` Arnaud Patard
2021-03-05 10:27 ` [patch v4 2/9] rockchip: video: edp: Add rk3399 support Arnaud Patard
` (8 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: Arnaud Patard @ 2021-03-05 10:27 UTC (permalink / raw)
To: u-boot
The current code is using an hard coded enum and the of node reg value of
endpoint to find out if the endpoint is mipi/hdmi/lvds/edp/dp. The order
is different between rk3288, rk3399 vop little, rk3399 vop big.
A possible solution would be to make sure that the rk3288.dtsi and
rk3399.dtsi files have "expected" reg value or an other solution is
to find the kind of endpoint by comparing the endpoint compatible value.
This patch is implementing the more flexible second solution.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Index: u-boot/arch/arm/include/asm/arch-rockchip/vop_rk3288.h
===================================================================
--- u-boot.orig/arch/arm/include/asm/arch-rockchip/vop_rk3288.h
+++ u-boot/arch/arm/include/asm/arch-rockchip/vop_rk3288.h
@@ -85,26 +85,13 @@ enum {
LB_RGB_1280X8 = 0x5
};
-#if defined(CONFIG_ROCKCHIP_RK3399)
enum vop_modes {
VOP_MODE_EDP = 0,
VOP_MODE_MIPI,
VOP_MODE_HDMI,
- VOP_MODE_MIPI1,
- VOP_MODE_DP,
- VOP_MODE_NONE,
-};
-#else
-enum vop_modes {
- VOP_MODE_EDP = 0,
- VOP_MODE_HDMI,
VOP_MODE_LVDS,
- VOP_MODE_MIPI,
- VOP_MODE_NONE,
- VOP_MODE_AUTO_DETECT,
- VOP_MODE_UNKNOWN,
+ VOP_MODE_DP,
};
-#endif
/* VOP_VERSION_INFO */
#define M_FPGA_VERSION (0xffff << 16)
Index: u-boot/drivers/video/rockchip/rk_vop.c
===================================================================
--- u-boot.orig/drivers/video/rockchip/rk_vop.c
+++ u-boot/drivers/video/rockchip/rk_vop.c
@@ -236,12 +236,11 @@ static int rk_display_init(struct udevic
struct clk clk;
enum video_log2_bpp l2bpp;
ofnode remote;
+ const char *compat;
debug("%s(%s, %lu, %s)\n", __func__,
dev_read_name(dev), fbbase, ofnode_get_name(ep_node));
- vop_id = ofnode_read_s32_default(ep_node, "reg", -1);
- debug("vop_id=%d\n", vop_id);
ret = ofnode_read_u32(ep_node, "remote-endpoint", &remote_phandle);
if (ret)
return ret;
@@ -283,6 +282,28 @@ static int rk_display_init(struct udevic
if (disp)
break;
};
+ compat = ofnode_get_property(remote, "compatible", NULL);
+ if (!compat) {
+ debug("%s(%s): Failed to find compatible property\n",
+ __func__, dev_read_name(dev));
+ return -EINVAL;
+ }
+ if (strstr(compat, "edp")) {
+ vop_id = VOP_MODE_EDP;
+ } else if (strstr(compat, "mipi")) {
+ vop_id = VOP_MODE_MIPI;
+ } else if (strstr(compat, "hdmi")) {
+ vop_id = VOP_MODE_HDMI;
+ } else if (strstr(compat, "cdn-dp")) {
+ vop_id = VOP_MODE_DP;
+ } else if (strstr(compat, "lvds")) {
+ vop_id = VOP_MODE_LVDS;
+ } else {
+ debug("%s(%s): Failed to find vop mode for %s\n",
+ __func__, dev_read_name(dev), compat);
+ return -EINVAL;
+ }
+ debug("vop_id=%d\n", vop_id);
disp_uc_plat = dev_get_uclass_plat(disp);
debug("Found device '%s', disp_uc_priv=%p\n", disp->name, disp_uc_plat);
^ permalink raw reply [flat|nested] 11+ messages in thread* [patch v4 2/9] rockchip: video: edp: Add rk3399 support
2021-03-05 10:27 [patch v4 0/9] rk3399 (Pinebook pro) EDP support Arnaud Patard
2021-03-05 10:27 ` [patch v4 1/9] rockchip: video: vop: Use endpoint compatible string to find VOP mode Arnaud Patard
@ 2021-03-05 10:27 ` Arnaud Patard
2021-03-05 10:27 ` [patch v4 3/9] Rockchip: video: edp: Change interrupt polarity configuration Arnaud Patard
` (7 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: Arnaud Patard @ 2021-03-05 10:27 UTC (permalink / raw)
To: u-boot
According to linux commit "drm/rockchip: analogix_dp: add rk3399 eDP
support" (82872e42bb1501dd9e60ca430f4bae45a469aa64), rk3288 and rk3399
eDP IPs are nearly the same, the difference is in the grf register
(SOC_CON6 versus SOC_CON20). So, change the code to use the right
register on each IP.
The clocks don't seem to be the same, the eDP clock is not at index 1
on rk3399, so don't try changing the clock at index 1 to rate 0 on
rk3399.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Index: u-boot/drivers/video/rockchip/rk_edp.c
===================================================================
--- u-boot.orig/drivers/video/rockchip/rk_edp.c
+++ u-boot/drivers/video/rockchip/rk_edp.c
@@ -17,11 +17,10 @@
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/arch-rockchip/clock.h>
+#include <asm/arch-rockchip/hardware.h>
#include <asm/arch-rockchip/edp_rk3288.h>
#include <asm/arch-rockchip/grf_rk3288.h>
-#include <asm/arch-rockchip/hardware.h>
-#include <dt-bindings/clock/rk3288-cru.h>
-#include <linux/delay.h>
+#include <asm/arch-rockchip/grf_rk3399.h>
#define MAX_CR_LOOP 5
#define MAX_EQ_LOOP 5
@@ -37,18 +36,42 @@ static const char * const pre_emph_names
#define DP_VOLTAGE_MAX DP_TRAIN_VOLTAGE_SWING_1200
#define DP_PRE_EMPHASIS_MAX DP_TRAIN_PRE_EMPHASIS_9_5
+#define RK3288_GRF_SOC_CON6 0x025c
+#define RK3288_GRF_SOC_CON12 0x0274
+#define RK3399_GRF_SOC_CON20 0x6250
+#define RK3399_GRF_SOC_CON25 0x6264
+
+enum rockchip_dp_types {
+ RK3288_DP = 0,
+ RK3399_EDP
+};
+
+struct rockchip_dp_data {
+ unsigned long reg_vop_big_little;
+ unsigned long reg_vop_big_little_sel;
+ unsigned long reg_ref_clk_sel;
+ unsigned long ref_clk_sel_bit;
+ enum rockchip_dp_types chip_type;
+};
+
struct rk_edp_priv {
struct rk3288_edp *regs;
- struct rk3288_grf *grf;
+ void *grf;
struct udevice *panel;
struct link_train link_train;
u8 train_set[4];
};
-static void rk_edp_init_refclk(struct rk3288_edp *regs)
+static void rk_edp_init_refclk(struct rk3288_edp *regs, enum rockchip_dp_types chip_type)
{
writel(SEL_24M, ®s->analog_ctl_2);
- writel(REF_CLK_24M, ®s->pll_reg_1);
+ u32 reg;
+
+ reg = REF_CLK_24M;
+ if (chip_type == RK3288_DP)
+ reg ^= REF_CLK_MASK;
+ writel(reg, ®s->pll_reg_1);
+
writel(LDO_OUTPUT_V_SEL_145 | KVCO_DEFALUT | CHG_PUMP_CUR_SEL_5US |
V2L_CUR_SEL_1MA, ®s->pll_reg_2);
@@ -1029,6 +1052,8 @@ static int rk_edp_probe(struct udevice *
struct display_plat *uc_plat = dev_get_uclass_plat(dev);
struct rk_edp_priv *priv = dev_get_priv(dev);
struct rk3288_edp *regs = priv->regs;
+ struct rockchip_dp_data *edp_data = (struct rockchip_dp_data *)dev_get_driver_data(dev);
+
struct clk clk;
int ret;
@@ -1043,16 +1068,17 @@ static int rk_edp_probe(struct udevice *
int vop_id = uc_plat->source_id;
debug("%s, uc_plat=%p, vop_id=%u\n", __func__, uc_plat, vop_id);
- ret = clk_get_by_index(dev, 1, &clk);
- if (ret >= 0) {
- ret = clk_set_rate(&clk, 0);
- clk_free(&clk);
- }
- if (ret) {
- debug("%s: Failed to set EDP clock: ret=%d\n", __func__, ret);
- return ret;
+ if (edp_data->chip_type == RK3288_DP) {
+ ret = clk_get_by_index(dev, 1, &clk);
+ if (ret >= 0) {
+ ret = clk_set_rate(&clk, 0);
+ clk_free(&clk);
+ }
+ if (ret) {
+ debug("%s: Failed to set EDP clock: ret=%d\n", __func__, ret);
+ return ret;
+ }
}
-
ret = clk_get_by_index(uc_plat->src_dev, 0, &clk);
if (ret >= 0) {
ret = clk_set_rate(&clk, 192000000);
@@ -1065,15 +1091,17 @@ static int rk_edp_probe(struct udevice *
}
/* grf_edp_ref_clk_sel: from internal 24MHz or 27MHz clock */
- rk_setreg(&priv->grf->soc_con12, 1 << 4);
+ rk_setreg(priv->grf + edp_data->reg_ref_clk_sel,
+ edp_data->ref_clk_sel_bit);
/* select epd signal from vop0 or vop1 */
- rk_clrsetreg(&priv->grf->soc_con6, (1 << 5),
- (vop_id == 1) ? (1 << 5) : (0 << 5));
+ rk_clrsetreg(priv->grf + edp_data->reg_vop_big_little,
+ edp_data->reg_vop_big_little_sel,
+ (vop_id == 1) ? edp_data->reg_vop_big_little_sel : 0);
rockchip_edp_wait_hpd(priv);
- rk_edp_init_refclk(regs);
+ rk_edp_init_refclk(regs, edp_data->chip_type);
rk_edp_init_interrupt(regs);
rk_edp_enable_sw_function(regs);
ret = rk_edp_init_analog_func(regs);
@@ -1089,8 +1117,25 @@ static const struct dm_display_ops dp_ro
.enable = rk_edp_enable,
};
+static const struct rockchip_dp_data rk3399_edp = {
+ .reg_vop_big_little = RK3399_GRF_SOC_CON20,
+ .reg_vop_big_little_sel = BIT(5),
+ .reg_ref_clk_sel = RK3399_GRF_SOC_CON25,
+ .ref_clk_sel_bit = BIT(11),
+ .chip_type = RK3399_EDP,
+};
+
+static const struct rockchip_dp_data rk3288_dp = {
+ .reg_vop_big_little = RK3288_GRF_SOC_CON6,
+ .reg_vop_big_little_sel = BIT(5),
+ .reg_ref_clk_sel = RK3288_GRF_SOC_CON12,
+ .ref_clk_sel_bit = BIT(4),
+ .chip_type = RK3288_DP,
+};
+
static const struct udevice_id rockchip_dp_ids[] = {
- { .compatible = "rockchip,rk3288-edp" },
+ { .compatible = "rockchip,rk3288-edp", .data = (ulong)&rk3288_dp },
+ { .compatible = "rockchip,rk3399-edp", .data = (ulong)&rk3399_edp },
{ }
};
Index: u-boot/arch/arm/include/asm/arch-rockchip/edp_rk3288.h
===================================================================
--- u-boot.orig/arch/arm/include/asm/arch-rockchip/edp_rk3288.h
+++ u-boot/arch/arm/include/asm/arch-rockchip/edp_rk3288.h
@@ -232,8 +232,9 @@ check_member(rk3288_edp, pll_reg_5, 0xa0
#define PD_CH0 (0x1 << 0)
/* pll_reg_1 */
-#define REF_CLK_24M (0x1 << 1)
-#define REF_CLK_27M (0x0 << 1)
+#define REF_CLK_24M (0x1 << 0)
+#define REF_CLK_27M (0x0 << 0)
+#define REF_CLK_MASK (0x1 << 0)
/* line_map */
#define LANE3_MAP_LOGIC_LANE_0 (0x0 << 6)
^ permalink raw reply [flat|nested] 11+ messages in thread* [patch v4 3/9] Rockchip: video: edp: Change interrupt polarity configuration
2021-03-05 10:27 [patch v4 0/9] rk3399 (Pinebook pro) EDP support Arnaud Patard
2021-03-05 10:27 ` [patch v4 1/9] rockchip: video: vop: Use endpoint compatible string to find VOP mode Arnaud Patard
2021-03-05 10:27 ` [patch v4 2/9] rockchip: video: edp: Add rk3399 support Arnaud Patard
@ 2021-03-05 10:27 ` Arnaud Patard
2021-03-05 10:27 ` [patch v4 4/9] Rockchip: video: vop: Reserve efi fb memory Arnaud Patard
` (6 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: Arnaud Patard @ 2021-03-05 10:27 UTC (permalink / raw)
To: u-boot
The linux code is setting polarity configuration to 3 but
uboot code is setting it to 1. Change the configuration to match the
linux configuration
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Index: u-boot/arch/arm/include/asm/arch-rockchip/edp_rk3288.h
===================================================================
--- u-boot.orig/arch/arm/include/asm/arch-rockchip/edp_rk3288.h
+++ u-boot/arch/arm/include/asm/arch-rockchip/edp_rk3288.h
@@ -297,7 +297,9 @@ check_member(rk3288_edp, pll_reg_5, 0xa0
/* int_ctl */
#define SOFT_INT_CTRL (0x1 << 2)
-#define INT_POL (0x1 << 0)
+#define INT_POL1 (0x1 << 1)
+#define INT_POL0 (0x1 << 0)
+#define INT_POL (INT_POL0 | INT_POL1)
/* sys_ctl_1 */
#define DET_STA (0x1 << 2)
^ permalink raw reply [flat|nested] 11+ messages in thread* [patch v4 4/9] Rockchip: video: vop: Reserve efi fb memory
2021-03-05 10:27 [patch v4 0/9] rk3399 (Pinebook pro) EDP support Arnaud Patard
` (2 preceding siblings ...)
2021-03-05 10:27 ` [patch v4 3/9] Rockchip: video: edp: Change interrupt polarity configuration Arnaud Patard
@ 2021-03-05 10:27 ` Arnaud Patard
2021-03-05 10:27 ` [patch v4 5/9] rockchip: Pinebook Pro: Enable edp Arnaud Patard
` (5 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: Arnaud Patard @ 2021-03-05 10:27 UTC (permalink / raw)
To: u-boot
When booting with EFI and graphics, the memory used for framebuffer
has to be reserved, otherwise it may leads to kernel memory
overwrite.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Index: u-boot/drivers/video/rockchip/rk_vop.c
===================================================================
--- u-boot.orig/drivers/video/rockchip/rk_vop.c
+++ u-boot/drivers/video/rockchip/rk_vop.c
@@ -21,6 +21,8 @@
#include <asm/arch-rockchip/vop_rk3288.h>
#include <dm/device-internal.h>
#include <dm/uclass-internal.h>
+#include <efi.h>
+#include <efi_loader.h>
#include <linux/bitops.h>
#include <linux/err.h>
#include <power/regulator.h>
@@ -395,6 +397,11 @@ int rk_vop_probe(struct udevice *dev)
if (!(gd->flags & GD_FLG_RELOC))
return 0;
+#if defined(CONFIG_EFI_LOADER)
+ debug("Adding to EFI map %d @ %lx\n", plat->size, plat->base);
+ efi_add_memory_map(plat->base, plat->size, EFI_RESERVED_MEMORY_TYPE);
+#endif
+
priv->regs = (struct rk3288_vop *)dev_read_addr(dev);
/*
^ permalink raw reply [flat|nested] 11+ messages in thread* [patch v4 5/9] rockchip: Pinebook Pro: Enable edp
2021-03-05 10:27 [patch v4 0/9] rk3399 (Pinebook pro) EDP support Arnaud Patard
` (3 preceding siblings ...)
2021-03-05 10:27 ` [patch v4 4/9] Rockchip: video: vop: Reserve efi fb memory Arnaud Patard
@ 2021-03-05 10:27 ` Arnaud Patard
2021-03-05 10:27 ` [patch v4 6/9] rockchip: pwm: Fix default polarity Arnaud Patard
` (4 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: Arnaud Patard @ 2021-03-05 10:27 UTC (permalink / raw)
To: u-boot
- uboot rockchip edp code is looking for a rockchip,panel property
for the edp dts node, so add it.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Index: u-boot/arch/arm/dts/rk3399-pinebook-pro-u-boot.dtsi
===================================================================
--- u-boot.orig/arch/arm/dts/rk3399-pinebook-pro-u-boot.dtsi
+++ u-boot/arch/arm/dts/rk3399-pinebook-pro-u-boot.dtsi
@@ -16,6 +16,10 @@
};
};
+&edp {
+ rockchip,panel = <&edp_panel>;
+};
+
&i2c0 {
u-boot,dm-pre-reloc;
};
^ permalink raw reply [flat|nested] 11+ messages in thread* [patch v4 6/9] rockchip: pwm: Fix default polarity
2021-03-05 10:27 [patch v4 0/9] rk3399 (Pinebook pro) EDP support Arnaud Patard
` (4 preceding siblings ...)
2021-03-05 10:27 ` [patch v4 5/9] rockchip: Pinebook Pro: Enable edp Arnaud Patard
@ 2021-03-05 10:27 ` Arnaud Patard
2021-03-05 10:27 ` [patch v4 7/9] rockchip: video: vop: Fix format of fbbase in debug string Arnaud Patard
` (3 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: Arnaud Patard @ 2021-03-05 10:27 UTC (permalink / raw)
To: u-boot
In the code, the default polarity is set to positive/positive,
which is neither normal polarity or inverted polarity. It's
only the hardware default. This leads to booting linux with
wrong polarity setting.
Update the code to use PWM_DUTY_POSTIVE | PWM_INACTIVE_NEGATIVE
by default instead.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Index: u-boot/drivers/pwm/rk_pwm.c
===================================================================
--- u-boot.orig/drivers/pwm/rk_pwm.c
+++ u-boot/drivers/pwm/rk_pwm.c
@@ -147,7 +147,7 @@ static int rk_pwm_probe(struct udevice *
priv->data = (struct rockchip_pwm_data *)dev_get_driver_data(dev);
if (priv->data->supports_polarity)
- priv->conf_polarity = PWM_DUTY_POSTIVE | PWM_INACTIVE_POSTIVE;
+ priv->conf_polarity = PWM_DUTY_POSTIVE | PWM_INACTIVE_NEGATIVE;
return 0;
}
^ permalink raw reply [flat|nested] 11+ messages in thread* [patch v4 7/9] rockchip: video: vop: Fix format of fbbase in debug string
2021-03-05 10:27 [patch v4 0/9] rk3399 (Pinebook pro) EDP support Arnaud Patard
` (5 preceding siblings ...)
2021-03-05 10:27 ` [patch v4 6/9] rockchip: pwm: Fix default polarity Arnaud Patard
@ 2021-03-05 10:27 ` Arnaud Patard
2021-03-05 10:27 ` [patch v4 8/9] rockchip: video: edp: Add missing reset support Arnaud Patard
` (2 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: Arnaud Patard @ 2021-03-05 10:27 UTC (permalink / raw)
To: u-boot
The debug string printing the device name, framebuffer address and of node
is using %lu as format for the framebuffer address, which is not so nice.
Change it to %lx.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Index: u-boot/drivers/video/rockchip/rk_vop.c
===================================================================
--- u-boot.orig/drivers/video/rockchip/rk_vop.c
+++ u-boot/drivers/video/rockchip/rk_vop.c
@@ -240,7 +240,7 @@ static int rk_display_init(struct udevic
ofnode remote;
const char *compat;
- debug("%s(%s, %lu, %s)\n", __func__,
+ debug("%s(%s, 0x%lx, %s)\n", __func__,
dev_read_name(dev), fbbase, ofnode_get_name(ep_node));
ret = ofnode_read_u32(ep_node, "remote-endpoint", &remote_phandle);
^ permalink raw reply [flat|nested] 11+ messages in thread* [patch v4 8/9] rockchip: video: edp: Add missing reset support
2021-03-05 10:27 [patch v4 0/9] rk3399 (Pinebook pro) EDP support Arnaud Patard
` (6 preceding siblings ...)
2021-03-05 10:27 ` [patch v4 7/9] rockchip: video: vop: Fix format of fbbase in debug string Arnaud Patard
@ 2021-03-05 10:27 ` Arnaud Patard
2021-03-05 10:27 ` [patch v4 9/9] rockchip: video: vop: Add " Arnaud Patard
2021-04-11 19:20 ` [patch v4 0/9] rk3399 (Pinebook pro) EDP support Anatolij Gustschin
9 siblings, 0 replies; 11+ messages in thread
From: Arnaud Patard @ 2021-03-05 10:27 UTC (permalink / raw)
To: u-boot
In order to ensure that the eDP registers are in correct state,
add missing support for the eDP reset lines found in the device-tree.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Index: u-boot/drivers/video/rockchip/rk_edp.c
===================================================================
--- u-boot.orig/drivers/video/rockchip/rk_edp.c
+++ u-boot/drivers/video/rockchip/rk_edp.c
@@ -8,11 +8,13 @@
#include <clk.h>
#include <display.h>
#include <dm.h>
+#include <dm/device_compat.h>
#include <edid.h>
#include <log.h>
#include <malloc.h>
#include <panel.h>
#include <regmap.h>
+#include <reset.h>
#include <syscon.h>
#include <asm/gpio.h>
#include <asm/io.h>
@@ -1053,6 +1055,7 @@ static int rk_edp_probe(struct udevice *
struct rk_edp_priv *priv = dev_get_priv(dev);
struct rk3288_edp *regs = priv->regs;
struct rockchip_dp_data *edp_data = (struct rockchip_dp_data *)dev_get_driver_data(dev);
+ struct reset_ctl dp_rst;
struct clk clk;
int ret;
@@ -1065,6 +1068,25 @@ static int rk_edp_probe(struct udevice *
return ret;
}
+ ret = reset_get_by_name(dev, "dp", &dp_rst);
+ if (ret) {
+ dev_err(dev, "failed to get dp reset (ret=%d)\n", ret);
+ return ret;
+ }
+
+ ret = reset_assert(&dp_rst);
+ if (ret) {
+ dev_err(dev, "failed to assert dp reset (ret=%d)\n", ret);
+ return ret;
+ }
+ udelay(20);
+
+ ret = reset_deassert(&dp_rst);
+ if (ret) {
+ dev_err(dev, "failed to deassert dp reset (ret=%d)\n", ret);
+ return ret;
+ }
+
int vop_id = uc_plat->source_id;
debug("%s, uc_plat=%p, vop_id=%u\n", __func__, uc_plat, vop_id);
^ permalink raw reply [flat|nested] 11+ messages in thread* [patch v4 9/9] rockchip: video: vop: Add reset support
2021-03-05 10:27 [patch v4 0/9] rk3399 (Pinebook pro) EDP support Arnaud Patard
` (7 preceding siblings ...)
2021-03-05 10:27 ` [patch v4 8/9] rockchip: video: edp: Add missing reset support Arnaud Patard
@ 2021-03-05 10:27 ` Arnaud Patard
2021-04-11 19:20 ` [patch v4 0/9] rk3399 (Pinebook pro) EDP support Anatolij Gustschin
9 siblings, 0 replies; 11+ messages in thread
From: Arnaud Patard @ 2021-03-05 10:27 UTC (permalink / raw)
To: u-boot
In order to ensure that the VOP registers are in correct state,
add missing support for the VOP reset lines found in the device-tree
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Index: u-boot/drivers/video/rockchip/rk_vop.c
===================================================================
--- u-boot.orig/drivers/video/rockchip/rk_vop.c
+++ u-boot/drivers/video/rockchip/rk_vop.c
@@ -8,9 +8,11 @@
#include <clk.h>
#include <display.h>
#include <dm.h>
+#include <dm/device_compat.h>
#include <edid.h>
#include <log.h>
#include <regmap.h>
+#include <reset.h>
#include <syscon.h>
#include <video.h>
#include <asm/global_data.h>
@@ -37,14 +39,16 @@ enum vop_pol {
DCLK_INVERT = 3
};
-static void rkvop_enable(struct rk3288_vop *regs, ulong fbbase,
+static void rkvop_enable(struct udevice *dev, struct rk3288_vop *regs, ulong fbbase,
int fb_bits_per_pixel,
- const struct display_timing *edid)
+ const struct display_timing *edid,
+ struct reset_ctl *dclk_rst)
{
u32 lb_mode;
u32 rgb_mode;
u32 hactive = edid->hactive.typ;
u32 vactive = edid->vactive.typ;
+ int ret;
writel(V_ACT_WIDTH(hactive - 1) | V_ACT_HEIGHT(vactive - 1),
®s->win0_act_info);
@@ -92,6 +96,18 @@ static void rkvop_enable(struct rk3288_v
writel(fbbase, ®s->win0_yrgb_mst);
writel(0x01, ®s->reg_cfg_done); /* enable reg config */
+
+ ret = reset_assert(dclk_rst);
+ if (ret) {
+ dev_warn(dev, "failed to assert dclk reset (ret=%d)\n", ret);
+ return;
+ }
+ udelay(20);
+
+ ret = reset_deassert(dclk_rst);
+ if (ret)
+ dev_warn(dev, "failed to deassert dclk reset (ret=%d)\n", ret);
+
}
static void rkvop_set_pin_polarity(struct udevice *dev,
@@ -239,6 +255,7 @@ static int rk_display_init(struct udevic
enum video_log2_bpp l2bpp;
ofnode remote;
const char *compat;
+ struct reset_ctl dclk_rst;
debug("%s(%s, 0x%lx, %s)\n", __func__,
dev_read_name(dev), fbbase, ofnode_get_name(ep_node));
@@ -355,7 +372,14 @@ static int rk_display_init(struct udevic
}
rkvop_mode_set(dev, &timing, vop_id);
- rkvop_enable(regs, fbbase, 1 << l2bpp, &timing);
+
+ ret = reset_get_by_name(dev, "dclk", &dclk_rst);
+ if (ret) {
+ dev_err(dev, "failed to get dclk reset (ret=%d)\n", ret);
+ return ret;
+ }
+
+ rkvop_enable(dev, regs, fbbase, 1 << l2bpp, &timing, &dclk_rst);
ret = display_enable(disp, 1 << l2bpp, &timing);
if (ret)
@@ -392,11 +416,31 @@ int rk_vop_probe(struct udevice *dev)
struct rk_vop_priv *priv = dev_get_priv(dev);
int ret = 0;
ofnode port, node;
+ struct reset_ctl ahb_rst;
/* Before relocation we don't need to do anything */
if (!(gd->flags & GD_FLG_RELOC))
return 0;
+ ret = reset_get_by_name(dev, "ahb", &ahb_rst);
+ if (ret) {
+ dev_err(dev, "failed to get ahb reset (ret=%d)\n", ret);
+ return ret;
+ }
+
+ ret = reset_assert(&ahb_rst);
+ if (ret) {
+ dev_err(dev, "failed to assert ahb reset (ret=%d)\n", ret);
+ return ret;
+ }
+ udelay(20);
+
+ ret = reset_deassert(&ahb_rst);
+ if (ret) {
+ dev_err(dev, "failed to deassert ahb reset (ret=%d)\n", ret);
+ return ret;
+ }
+
#if defined(CONFIG_EFI_LOADER)
debug("Adding to EFI map %d @ %lx\n", plat->size, plat->base);
efi_add_memory_map(plat->base, plat->size, EFI_RESERVED_MEMORY_TYPE);
^ permalink raw reply [flat|nested] 11+ messages in thread* [patch v4 0/9] rk3399 (Pinebook pro) EDP support
2021-03-05 10:27 [patch v4 0/9] rk3399 (Pinebook pro) EDP support Arnaud Patard
` (8 preceding siblings ...)
2021-03-05 10:27 ` [patch v4 9/9] rockchip: video: vop: Add " Arnaud Patard
@ 2021-04-11 19:20 ` Anatolij Gustschin
9 siblings, 0 replies; 11+ messages in thread
From: Anatolij Gustschin @ 2021-04-11 19:20 UTC (permalink / raw)
To: u-boot
On Fri, 05 Mar 2021 11:27:45 +0100
Arnaud Patard (Rtp) arnaud.patard at rtp-net.org wrote:
> This patchset add support for the rk3399 eDP. It has been tested on the pinebook
> pro and Google Kevin chromeos devices.
>
> The changes have been written by studying the linux code, since I didn't find any
> manual for theses part of the RK3399 SoC.
>
> On the linux kernel side, on recent kernels, it needs commit "pwm: rockchip: Keep
> enabled PWMs running while probing" otherwise the pinebook pro will freeze when probing
> the display.
Series applied to u-boot-video/master, thanks!
--
Anatolij
^ permalink raw reply [flat|nested] 11+ messages in thread