[PATCH v5 0/5] Support Starry er88577 MIPI-DSI panel

[PATCH v5 0/5] Support Starry er88577 MIPI-DSI panel

[Zhaoxiong Lv]

The Starry is a 10.1" WXGA TFT LCD panel. Because Starry-er88577 
and boe-th101mb31ig002 have very similar inti_code, after 
discussing with Dmitry Baryshkov, We will modify it based on the 
panel-boe-th101mb31ig002-28a.c driver instead of using a separate 
driver.

Changes between V5 and V4:
- PATCH 1/5: Add a new patch, make it compatible with more panels.
- PATCH 2/5: Add a new patch, change devm_gpiod_get() to devm_gpiod_get_optional() in the Probe() function.
- PATCH 3/5: Add a new patch, use wrapped MIPI DCS functions.
- PATCH 4/5: Add it to the "boe,th101mb31ig002-28a.yaml.
- PATCH 5/5: Compatible with starry-er88577 panel in panel-boe-th101mb31ig002-28a.c driver.
- Link to v4: https://lore.kernel.org/all/20240620115245.31540-1-lvzhaoxiong@huaqin.corp-partner.google.com/

Changes between V4 and V3:
- PATCH 1/2: Move positions to keep the list sorted.
- PATCH 2/2: Adjust the ".clock" assignment format.
- Link to v3: https://lore.kernel.org/all/20240614145609.25432-1-lvzhaoxiong@huaqin.corp-partner.google.com/

Changes between V3 and V2:
- PATCH 1/2: This add the bindings to panel-simple-dsi.
- PATCH 2/2: Add a separate driver for Starry-er88577, and Use the new mipi_dsi_dcs_write_seq_multi() function.
- Link to v2: https://lore.kernel.org/all/20240601084528.22502-1-lvzhaoxiong@huaqin.corp-partner.google.com/

Changes between V2 and V1:
- PATCH 1/4: Delete some unnecessary information.
- PATCH 2/4: Use the new mipi_dsi_dcs_write_seq_multi() function, deleted some unnecessary functions.
- PATCH 3/4: Add compatible for Starry-er88577.
- PATCH 4/4: Add starry panel configuration in panel-kingdisplay-kd101ne3 driver.
- Link to v1: https://lore.kernel.org/all/20240418081548.12160-1-lvzhaoxiong@huaqin.corp-partner.google.com/

Zhaoxiong Lv (5):
  drm/panel: boe-th101mb31ig002 : Make it compatible with other panel.
  drm/panel: boe-th101mb31ig002: switch to devm_gpiod_get_optional() for
    reset_gpio
  drm/panel: boe-th101mb31ig002: use wrapped MIPI DCS functions
  dt-bindings: display: panel: Add compatible for starry-er88577
  drm/panel: :boe-th101mb31ig002: Support for starry-er88577 MIPI-DSI
    panel

 .../display/panel/boe,th101mb31ig002-28a.yaml |   2 +
 .../drm/panel/panel-boe-th101mb31ig002-28a.c  | 298 +++++++++++++-----
 2 files changed, 215 insertions(+), 85 deletions(-)

-- 
2.17.1

[PATCH v5 1/5] drm/panel: boe-th101mb31ig002 : Make it compatible with other panel.

[Zhaoxiong Lv]

This driver currently only applies to one panel. Modify it to be
compatible with other panels.

Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
---
 .../drm/panel/panel-boe-th101mb31ig002-28a.c  | 40 +++++++++++++++----
 1 file changed, 33 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
index 763e9f8342d3..159e401ad0e6 100644
--- a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
+++ b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
@@ -17,11 +17,21 @@
 #include <drm/drm_modes.h>
 #include <drm/drm_panel.h>
 
+struct panel_desc {
+	const struct drm_display_mode *modes;
+	unsigned long mode_flags;
+	enum mipi_dsi_pixel_format format;
+	const struct panel_init_cmd *init_cmds;
+	unsigned int lanes;
+};
+
 struct boe_th101mb31ig002 {
 	struct drm_panel panel;
 
 	struct mipi_dsi_device *dsi;
 
+	const struct panel_desc *desc;
+
 	struct regulator *power;
 	struct gpio_desc *enable;
 	struct gpio_desc *reset;
@@ -161,7 +171,10 @@ static int boe_th101mb31ig002_prepare(struct drm_panel *panel)
 	gpiod_set_value_cansleep(ctx->enable, 1);
 	msleep(50);
 	boe_th101mb31ig002_reset(ctx);
-	boe_th101mb31ig002_enable(panel);
+
+	ret = ctx->desc->init(ctx);
+	if (ret)
+		return ret;
 
 	return 0;
 }
@@ -181,6 +194,16 @@ static const struct drm_display_mode boe_th101mb31ig002_default_mode = {
 	.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
 };
 
+static const struct panel_desc boe_th101mb31ig002_desc = {
+	.modes = &boe_th101mb31ig002_default_mode,
+	.lanes = 4,
+	.format = MIPI_DSI_FMT_RGB888,
+	.mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
+			  MIPI_DSI_MODE_NO_EOT_PACKET |
+			  MIPI_DSI_MODE_LPM,
+	.init_cmds = boe_th101mb31ig002_enable,
+};
+
 static int boe_th101mb31ig002_get_modes(struct drm_panel *panel,
 					struct drm_connector *connector)
 {
@@ -237,6 +260,7 @@ static const struct drm_panel_funcs boe_th101mb31ig002_funcs = {
 static int boe_th101mb31ig002_dsi_probe(struct mipi_dsi_device *dsi)
 {
 	struct boe_th101mb31ig002 *ctx;
+	const struct panel_desc *desc;
 	int ret;
 
 	ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL);
@@ -246,11 +270,11 @@ static int boe_th101mb31ig002_dsi_probe(struct mipi_dsi_device *dsi)
 	mipi_dsi_set_drvdata(dsi, ctx);
 	ctx->dsi = dsi;
 
-	dsi->lanes = 4;
-	dsi->format = MIPI_DSI_FMT_RGB888;
-	dsi->mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
-			  MIPI_DSI_MODE_NO_EOT_PACKET |
-			  MIPI_DSI_MODE_LPM;
+	desc = of_device_get_match_data(&dsi->dev);
+	dsi->lanes = desc->lanes;
+	dsi->format = desc->format;
+	dsi->mode_flags = desc->mode_flags;
+	ctx->desc = desc;
 
 	ctx->power = devm_regulator_get(&dsi->dev, "power");
 	if (IS_ERR(ctx->power))
@@ -302,7 +326,9 @@ static void boe_th101mb31ig002_dsi_remove(struct mipi_dsi_device *dsi)
 }
 
 static const struct of_device_id boe_th101mb31ig002_of_match[] = {
-	{ .compatible = "boe,th101mb31ig002-28a", },
+	{ .compatible = "boe,th101mb31ig002-28a",
+	  .data = &boe_th101mb31ig002_desc
+	},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, boe_th101mb31ig002_of_match);
-- 
2.17.1

[PATCH v5 2/5] drm/panel: boe-th101mb31ig002: switch to devm_gpiod_get_optional() for reset_gpio

[Zhaoxiong Lv]

Switch the driver to use devm_gpiod_get_optional() on reset_gpio to avoid
driver probe issues when reset line is not specified.

Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
---
 drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
index 159e401ad0e6..9f225c15b21c 100644
--- a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
+++ b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
@@ -286,7 +286,7 @@ static int boe_th101mb31ig002_dsi_probe(struct mipi_dsi_device *dsi)
 		return dev_err_probe(&dsi->dev, PTR_ERR(ctx->enable),
 				     "Failed to get enable GPIO\n");
 
-	ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_HIGH);
+	ctx->reset = devm_gpiod_get_optional(&dsi->dev, "reset", GPIOD_OUT_HIGH);
 	if (IS_ERR(ctx->reset))
 		return dev_err_probe(&dsi->dev, PTR_ERR(ctx->reset),
 				     "Failed to get reset GPIO\n");
-- 
2.17.1

[PATCH v5 3/5] drm/panel: boe-th101mb31ig002: use wrapped MIPI DCS functions

[Zhaoxiong Lv]

Remove conditional code and always use mipi_dsi_dcs_*multi() wrappers to
simplify driver's init/enable/exit code.

Convert the hex in init_code from UPPERCASE to lowercase.

Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
---
 .../drm/panel/panel-boe-th101mb31ig002-28a.c  | 143 ++++++++----------
 1 file changed, 63 insertions(+), 80 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
index 9f225c15b21c..736bfba607cf 100644
--- a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
+++ b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
@@ -17,11 +17,13 @@
 #include <drm/drm_modes.h>
 #include <drm/drm_panel.h>
 
+struct boe_th101mb31ig002;
+
 struct panel_desc {
 	const struct drm_display_mode *modes;
 	unsigned long mode_flags;
 	enum mipi_dsi_pixel_format format;
-	const struct panel_init_cmd *init_cmds;
+	int (*init)(struct boe_th101mb31ig002 *ctx);
 	unsigned int lanes;
 };
 
@@ -49,74 +51,61 @@ static void boe_th101mb31ig002_reset(struct boe_th101mb31ig002 *ctx)
 	usleep_range(5000, 6000);
 }
 
-static int boe_th101mb31ig002_enable(struct drm_panel *panel)
+static int boe_th101mb31ig002_enable(struct boe_th101mb31ig002 *ctx)
 {
-	struct boe_th101mb31ig002 *ctx = container_of(panel,
-						      struct boe_th101mb31ig002,
-						      panel);
-	struct mipi_dsi_device *dsi = ctx->dsi;
-	struct device *dev = &dsi->dev;
-	int ret;
-
-	mipi_dsi_dcs_write_seq(dsi, 0xE0, 0xAB, 0xBA);
-	mipi_dsi_dcs_write_seq(dsi, 0xE1, 0xBA, 0xAB);
-	mipi_dsi_dcs_write_seq(dsi, 0xB1, 0x10, 0x01, 0x47, 0xFF);
-	mipi_dsi_dcs_write_seq(dsi, 0xB2, 0x0C, 0x14, 0x04, 0x50, 0x50, 0x14);
-	mipi_dsi_dcs_write_seq(dsi, 0xB3, 0x56, 0x53, 0x00);
-	mipi_dsi_dcs_write_seq(dsi, 0xB4, 0x33, 0x30, 0x04);
-	mipi_dsi_dcs_write_seq(dsi, 0xB6, 0xB0, 0x00, 0x00, 0x10, 0x00, 0x10,
-				    0x00);
-	mipi_dsi_dcs_write_seq(dsi, 0xB8, 0x05, 0x12, 0x29, 0x49, 0x48, 0x00,
-				    0x00);
-	mipi_dsi_dcs_write_seq(dsi, 0xB9, 0x7C, 0x65, 0x55, 0x49, 0x46, 0x36,
-				    0x3B, 0x24, 0x3D, 0x3C, 0x3D, 0x5C, 0x4C,
-				    0x55, 0x47, 0x46, 0x39, 0x26, 0x06, 0x7C,
-				    0x65, 0x55, 0x49, 0x46, 0x36, 0x3B, 0x24,
-				    0x3D, 0x3C, 0x3D, 0x5C, 0x4C, 0x55, 0x47,
-				    0x46, 0x39, 0x26, 0x06);
-	mipi_dsi_dcs_write_seq(dsi, 0x00, 0xFF, 0x87, 0x12, 0x34, 0x44, 0x44,
-				    0x44, 0x44, 0x98, 0x04, 0x98, 0x04, 0x0F,
-				    0x00, 0x00, 0xC1);
-	mipi_dsi_dcs_write_seq(dsi, 0xC1, 0x54, 0x94, 0x02, 0x85, 0x9F, 0x00,
-				    0x7F, 0x00, 0x54, 0x00);
-	mipi_dsi_dcs_write_seq(dsi, 0xC2, 0x17, 0x09, 0x08, 0x89, 0x08, 0x11,
-				    0x22, 0x20, 0x44, 0xFF, 0x18, 0x00);
-	mipi_dsi_dcs_write_seq(dsi, 0xC3, 0x86, 0x46, 0x05, 0x05, 0x1C, 0x1C,
-				    0x1D, 0x1D, 0x02, 0x1F, 0x1F, 0x1E, 0x1E,
-				    0x0F, 0x0F, 0x0D, 0x0D, 0x13, 0x13, 0x11,
-				    0x11, 0x00);
-	mipi_dsi_dcs_write_seq(dsi, 0xC4, 0x07, 0x07, 0x04, 0x04, 0x1C, 0x1C,
-				    0x1D, 0x1D, 0x02, 0x1F, 0x1F, 0x1E, 0x1E,
-				    0x0E, 0x0E, 0x0C, 0x0C, 0x12, 0x12, 0x10,
-				    0x10, 0x00);
-	mipi_dsi_dcs_write_seq(dsi, 0xC6, 0x2A, 0x2A);
-	mipi_dsi_dcs_write_seq(dsi, 0xC8, 0x21, 0x00, 0x31, 0x42, 0x34, 0x16);
-	mipi_dsi_dcs_write_seq(dsi, 0xCA, 0xCB, 0x43);
-	mipi_dsi_dcs_write_seq(dsi, 0xCD, 0x0E, 0x4B, 0x4B, 0x20, 0x19, 0x6B,
-				    0x06, 0xB3);
-	mipi_dsi_dcs_write_seq(dsi, 0xD2, 0xE3, 0x2B, 0x38, 0x00);
-	mipi_dsi_dcs_write_seq(dsi, 0xD4, 0x00, 0x01, 0x00, 0x0E, 0x04, 0x44,
-				    0x08, 0x10, 0x00, 0x00, 0x00);
-	mipi_dsi_dcs_write_seq(dsi, 0xE6, 0x80, 0x01, 0xFF, 0xFF, 0xFF, 0xFF,
-				    0xFF, 0xFF);
-	mipi_dsi_dcs_write_seq(dsi, 0xF0, 0x12, 0x03, 0x20, 0x00, 0xFF);
-	mipi_dsi_dcs_write_seq(dsi, 0xF3, 0x00);
-
-	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
-	if (ret < 0) {
-		dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
-		return ret;
-	}
-
-	msleep(120);
-
-	ret = mipi_dsi_dcs_set_display_on(dsi);
-	if (ret < 0) {
-		dev_err(dev, "Failed to set panel on: %d\n", ret);
-		return ret;
-	}
-
-	return 0;
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
+
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe0, 0xab, 0xba);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe1, 0xba, 0xab);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb1, 0x10, 0x01, 0x47, 0xff);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb2, 0x0c, 0x14, 0x04, 0x50, 0x50, 0x14);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb3, 0x56, 0x53, 0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb4, 0x33, 0x30, 0x04);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb6, 0xb0, 0x00, 0x00, 0x10, 0x00, 0x10,
+					       0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb8, 0x05, 0x12, 0x29, 0x49, 0x48, 0x00,
+					       0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb9, 0x7c, 0x65, 0x55, 0x49, 0x46, 0x36,
+					       0x3b, 0x24, 0x3d, 0x3c, 0x3d, 0x5c, 0x4c,
+					       0x55, 0x47, 0x46, 0x39, 0x26, 0x06, 0x7c,
+					       0x65, 0x55, 0x49, 0x46, 0x36, 0x3b, 0x24,
+					       0x3d, 0x3c, 0x3d, 0x5c, 0x4c, 0x55, 0x47,
+					       0x46, 0x39, 0x26, 0x06);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x00, 0xff, 0x87, 0x12, 0x34, 0x44, 0x44,
+					       0x44, 0x44, 0x98, 0x04, 0x98, 0x04, 0x0f,
+					       0x00, 0x00, 0xc1);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc1, 0x54, 0x94, 0x02, 0x85, 0x9f, 0x00,
+					       0x7f, 0x00, 0x54, 0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc2, 0x17, 0x09, 0x08, 0x89, 0x08, 0x11,
+					       0x22, 0x20, 0x44, 0xff, 0x18, 0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc3, 0x86, 0x46, 0x05, 0x05, 0x1c, 0x1c,
+					       0x1d, 0x1d, 0x02, 0x1f, 0x1f, 0x1e, 0x1e,
+					       0x0f, 0x0f, 0x0d, 0x0d, 0x13, 0x13, 0x11,
+					       0x11, 0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc4, 0x07, 0x07, 0x04, 0x04, 0x1c, 0x1c,
+					       0x1d, 0x1d, 0x02, 0x1f, 0x1f, 0x1e, 0x1e,
+					       0x0e, 0x0e, 0x0c, 0x0c, 0x12, 0x12, 0x10,
+					       0x10, 0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc6, 0x2a, 0x2a);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc8, 0x21, 0x00, 0x31, 0x42, 0x34, 0x16);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xca, 0xcb, 0x43);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xcd, 0x0e, 0x4b, 0x4b, 0x20, 0x19, 0x6b,
+					       0x06, 0xb3);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd2, 0xe3, 0x2b, 0x38, 0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd4, 0x00, 0x01, 0x00, 0x0e, 0x04, 0x44,
+					       0x08, 0x10, 0x00, 0x00, 0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe6, 0x80, 0x01, 0xff, 0xff, 0xff, 0xff,
+					       0xff, 0xff);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x12, 0x03, 0x20, 0x00, 0xff);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf3, 0x00);
+
+	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
+
+	mipi_dsi_msleep(&dsi_ctx, 120);
+
+	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
+
+	return dsi_ctx.accum_err;
 }
 
 static int boe_th101mb31ig002_disable(struct drm_panel *panel)
@@ -124,21 +113,15 @@ static int boe_th101mb31ig002_disable(struct drm_panel *panel)
 	struct boe_th101mb31ig002 *ctx = container_of(panel,
 						      struct boe_th101mb31ig002,
 						      panel);
-	struct mipi_dsi_device *dsi = ctx->dsi;
-	struct device *dev = &dsi->dev;
-	int ret;
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
 
-	ret = mipi_dsi_dcs_set_display_off(dsi);
-	if (ret < 0)
-		dev_err(dev, "Failed to set panel off: %d\n", ret);
+	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
 
-	msleep(120);
+	mipi_dsi_msleep(&dsi_ctx, 120);
 
-	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
-	if (ret < 0)
-		dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
+	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
 
-	return 0;
+	return dsi_ctx.accum_err;
 }
 
 static int boe_th101mb31ig002_unprepare(struct drm_panel *panel)
@@ -201,7 +184,7 @@ static const struct panel_desc boe_th101mb31ig002_desc = {
 	.mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
 			  MIPI_DSI_MODE_NO_EOT_PACKET |
 			  MIPI_DSI_MODE_LPM,
-	.init_cmds = boe_th101mb31ig002_enable,
+	.init = boe_th101mb31ig002_enable,
 };
 
 static int boe_th101mb31ig002_get_modes(struct drm_panel *panel,
-- 
2.17.1

[PATCH v5 4/5] dt-bindings: display: panel: Add compatible for starry-er88577

[Zhaoxiong Lv]

The starry-er88577 is a 10.1" WXGA TFT-LCD panel. Hence, we 
add a new compatible with panel specific config.

Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
---
Changes between V5 and V4:
-  1. We are compatible with starry-er88577 panels in the boe-th101mb31ig002
-     driver, so add it to the "boe,th101mb31ig002-28a.yaml".

v4: https://lore.kernel.org/all/20240620115245.31540-2-lvzhaoxiong@huaqin.corp-partner.google.com/

Changes between V4 and V3:
-  1. Move positions to keep the list sorted.

v3: https://lore.kernel.org/all/20240614145609.25432-2-lvzhaoxiong@huaqin.corp-partner.google.com/

Changes between V3 and V2:
-  1. Separate the Starry bindings from kingdisplay, and add it to panel-simple-dsi.yaml

v2: https://lore.kernel.org/all/20240601084528.22502-4-lvzhaoxiong@huaqin.corp-partner.google.com/

Changes between V2 and V1:
-  1. Add compatible for Starry er88577 in Kingdisplay kd101ne3 dt-bindings.
---
 .../bindings/display/panel/boe,th101mb31ig002-28a.yaml          | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/panel/boe,th101mb31ig002-28a.yaml b/Documentation/devicetree/bindings/display/panel/boe,th101mb31ig002-28a.yaml
index 32df26cbfeed..2f251703a121 100644
--- a/Documentation/devicetree/bindings/display/panel/boe,th101mb31ig002-28a.yaml
+++ b/Documentation/devicetree/bindings/display/panel/boe,th101mb31ig002-28a.yaml
@@ -17,6 +17,8 @@ properties:
     enum:
         # BOE TH101MB31IG002-28A 10.1" WXGA TFT LCD panel
       - boe,th101mb31ig002-28a
+        # The Starry-er88577 is a 10.1" WXGA TFT-LCD panel
+      - starry,er88577
 
   reg: true
   backlight: true
-- 
2.17.1

[PATCH v5 5/5] drm/panel: :boe-th101mb31ig002: Support for starry-er88577 MIPI-DSI panel

[Zhaoxiong Lv]

The init_code of the starry-er88577 panel is very similar to the
panel-boe-th101mb31ig002-28a.c driver, so we make it compatible with
the panel-boe-th101mb31ig002-28a.c driver

Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
---
Changes between V5 and V4:
-  1. Compatible with starry-er88577 panel in panel-boe-th101mb31ig002-28a.c driver,.
v4: https://lore.kernel.org/all/20240620115245.31540-3-lvzhaoxiong@huaqin.corp-partner.google.com/

Changes between V4 and V3:
-  1. Adjust the ".clock" assignment format.
v3: https://lore.kernel.org/all/20240614145609.25432-3-lvzhaoxiong@huaqin.corp-partner.google.com/

Changes between V3 and V2:
-  Separate Starry-er88577 from the panel-kingdisplay-kd101ne3 driver.
-  Use mipi_dsi_dcs_set_display_on_multi().
-  Use mipi_dsi_dcs_exit_sleep_mode_multi() and mipi_dsi_msleep().
v2: https://lore.kernel.org/all/20240601084528.22502-5-lvzhaoxiong@huaqin.corp-partner.google.com/

Changes between V2 and V1:
-  Add compatible for Starry er88577 in panel-kingdisplay-kd101ne3 drivers.

---
 .../drm/panel/panel-boe-th101mb31ig002-28a.c  | 119 ++++++++++++++++++
 1 file changed, 119 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
index 736bfba607cf..c103236cc970 100644
--- a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
+++ b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
@@ -25,6 +25,12 @@ struct panel_desc {
 	enum mipi_dsi_pixel_format format;
 	int (*init)(struct boe_th101mb31ig002 *ctx);
 	unsigned int lanes;
+	bool lp11_before_reset;
+	unsigned int vcioo_to_lp11_delay_ms;
+	unsigned int lp11_to_reset_delay_ms;
+	unsigned int backlight_off_to_display_off_delay_ms;
+	unsigned int enter_sleep_to_reset_down_delay_ms;
+	unsigned int power_off_delay_ms;
 };
 
 struct boe_th101mb31ig002 {
@@ -108,6 +114,65 @@ static int boe_th101mb31ig002_enable(struct boe_th101mb31ig002 *ctx)
 	return dsi_ctx.accum_err;
 }
 
+static int starry_er88577_init_cmd(struct boe_th101mb31ig002 *ctx)
+{
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
+
+	msleep(70);
+
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe0, 0xab, 0xba);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe1, 0xba, 0xab);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb1, 0x10, 0x01, 0x47, 0xff);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb2, 0x0c, 0x14, 0x04, 0x50, 0x50, 0x14);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb3, 0x56, 0x53, 0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb4, 0x33, 0x30, 0x04);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb6, 0xb0, 0x00, 0x00, 0x10, 0x00, 0x10,
+					       0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb8, 0x05, 0x12, 0x29, 0x49, 0x40);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb9, 0x7c, 0x61, 0x4f, 0x42, 0x3e, 0x2d,
+					       0x31, 0x1a, 0x33, 0x33, 0x33, 0x52, 0x40,
+					       0x47, 0x38, 0x34, 0x26, 0x0e, 0x06, 0x7c,
+					       0x61, 0x4f, 0x42, 0x3e, 0x2d, 0x31, 0x1a,
+					       0x33, 0x33, 0x33, 0x52, 0x40, 0x47, 0x38,
+					       0x34, 0x26, 0x0e, 0x06);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc0, 0xcc, 0x76, 0x12, 0x34, 0x44, 0x44,
+					       0x44, 0x44, 0x98, 0x04, 0x98, 0x04, 0x0f,
+					       0x00, 0x00, 0xc1);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc1, 0x54, 0x94, 0x02, 0x85, 0x9f, 0x00,
+					       0x6f, 0x00, 0x54, 0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc2, 0x17, 0x09, 0x08, 0x89, 0x08, 0x11,
+					       0x22, 0x20, 0x44, 0xff, 0x18, 0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc3, 0x87, 0x47, 0x05, 0x05, 0x1c, 0x1c,
+					       0x1d, 0x1d, 0x02, 0x1e, 0x1e, 0x1f, 0x1f,
+					       0x0f, 0x0f, 0x0d, 0x0d, 0x13, 0x13, 0x11,
+					       0x11, 0x24);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc4, 0x06, 0x06, 0x04, 0x04, 0x1c, 0x1c,
+					       0x1d, 0x1d, 0x02, 0x1e, 0x1e, 0x1f, 0x1f,
+					       0x0e, 0x0e, 0x0c, 0x0c, 0x12, 0x12, 0x10,
+					       0x10, 0x24);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc8, 0x21, 0x00, 0x31, 0x42, 0x34, 0x16);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xca, 0xcb, 0x43);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xcd, 0x0e, 0x4b, 0x4b, 0x20, 0x19, 0x6b,
+					       0x06, 0xb3);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd2, 0xe3, 0x2b, 0x38, 0x08);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd4, 0x00, 0x01, 0x00, 0x0e, 0x04, 0x44,
+					       0x08, 0x10, 0x00, 0x00, 0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe6, 0x80, 0x09, 0xff, 0xff, 0xff, 0xff,
+					       0xff, 0xff);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x12, 0x03, 0x20, 0x00, 0xff);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf3, 0x00);
+
+	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
+
+	mipi_dsi_msleep(&dsi_ctx, 120);
+
+	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
+
+	mipi_dsi_msleep(&dsi_ctx, 20);
+
+	return dsi_ctx.accum_err;
+}
+
 static int boe_th101mb31ig002_disable(struct drm_panel *panel)
 {
 	struct boe_th101mb31ig002 *ctx = container_of(panel,
@@ -115,12 +180,18 @@ static int boe_th101mb31ig002_disable(struct drm_panel *panel)
 						      panel);
 	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
 
+	if (ctx->desc->backlight_off_to_display_off_delay_ms)
+		mipi_dsi_msleep(&dsi_ctx, ctx->desc->backlight_off_to_display_off_delay_ms);
+
 	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
 
 	mipi_dsi_msleep(&dsi_ctx, 120);
 
 	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
 
+	if (ctx->desc->enter_sleep_to_reset_down_delay_ms)
+		mipi_dsi_msleep(&dsi_ctx, ctx->desc->enter_sleep_to_reset_down_delay_ms);
+
 	return dsi_ctx.accum_err;
 }
 
@@ -134,6 +205,9 @@ static int boe_th101mb31ig002_unprepare(struct drm_panel *panel)
 	gpiod_set_value_cansleep(ctx->enable, 0);
 	regulator_disable(ctx->power);
 
+	if(ctx->desc->power_off_delay_ms)
+		msleep(ctx->desc->power_off_delay_ms);
+
 	return 0;
 }
 
@@ -151,6 +225,18 @@ static int boe_th101mb31ig002_prepare(struct drm_panel *panel)
 		return ret;
 	}
 
+	if (ctx->desc->vcioo_to_lp11_delay_ms)
+		msleep(ctx->desc->vcioo_to_lp11_delay_ms);
+
+	if (ctx->desc->lp11_before_reset) {
+		ret = mipi_dsi_dcs_nop(ctx->dsi);
+		if (ret)
+			return ret;
+	}
+
+	if (ctx->desc->lp11_to_reset_delay_ms)
+		msleep(ctx->desc->lp11_to_reset_delay_ms);
+
 	gpiod_set_value_cansleep(ctx->enable, 1);
 	msleep(50);
 	boe_th101mb31ig002_reset(ctx);
@@ -187,6 +273,36 @@ static const struct panel_desc boe_th101mb31ig002_desc = {
 	.init = boe_th101mb31ig002_enable,
 };
 
+static const struct drm_display_mode starry_er88577_default_mode = {
+	.clock	= (800 + 25 + 25 + 25) * (1280 + 20 + 4 + 12) * 60 / 1000,
+	.hdisplay = 800,
+	.hsync_start = 800 + 25,
+	.hsync_end = 800 + 25 + 25,
+	.htotal = 800 + 25 + 25 + 25,
+	.vdisplay = 1280,
+	.vsync_start = 1280 + 20,
+	.vsync_end = 1280 + 20 + 4,
+	.vtotal = 1280 + 20 + 4 + 12,
+	.width_mm = 135,
+	.height_mm = 216,
+	.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
+};
+
+static const struct panel_desc starry_er88577_desc = {
+	.modes = &starry_er88577_default_mode,
+	.lanes = 4,
+	.format = MIPI_DSI_FMT_RGB888,
+	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+		      MIPI_DSI_MODE_LPM,
+	.init = starry_er88577_init_cmd,
+	.lp11_before_reset = true,
+	.vcioo_to_lp11_delay_ms = 5,
+	.lp11_to_reset_delay_ms = 50,
+	.backlight_off_to_display_off_delay_ms = 100,
+	.enter_sleep_to_reset_down_delay_ms = 100,
+	.power_off_delay_ms = 1000,
+};
+
 static int boe_th101mb31ig002_get_modes(struct drm_panel *panel,
 					struct drm_connector *connector)
 {
@@ -312,6 +428,9 @@ static const struct of_device_id boe_th101mb31ig002_of_match[] = {
 	{ .compatible = "boe,th101mb31ig002-28a",
 	  .data = &boe_th101mb31ig002_desc
 	},
+	{ .compatible = "starry,er88577",
+	  .data = &starry_er88577_desc
+	},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, boe_th101mb31ig002_of_match);
-- 
2.17.1

Re: [PATCH v5 4/5] dt-bindings: display: panel: Add compatible for starry-er88577

[Conor Dooley]

[-- Attachment #1: Type: text/plain, Size: 2263 bytes --]

On Thu, Jul 04, 2024 at 03:29:57PM +0800, Zhaoxiong Lv wrote:
> The starry-er88577 is a 10.1" WXGA TFT-LCD panel. Hence, we 
> add a new compatible with panel specific config.
> 
> Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
> ---
> Changes between V5 and V4:
> -  1. We are compatible with starry-er88577 panels in the boe-th101mb31ig002
> -     driver, so add it to the "boe,th101mb31ig002-28a.yaml".

Are you sure that "compatible" is the right word here? It seems like the
devices are rather similar, but compatible would mean that the driver
would work for both without changes. The driver patch (and the lack of a
fallback compatible here) implies that the panels are not actually
compatible.

Acked-by: Conor Dooley <conor.dooley@microchip.com>

Cheers,
Conor.

> 
> v4: https://lore.kernel.org/all/20240620115245.31540-2-lvzhaoxiong@huaqin.corp-partner.google.com/
> 
> Changes between V4 and V3:
> -  1. Move positions to keep the list sorted.
> 
> v3: https://lore.kernel.org/all/20240614145609.25432-2-lvzhaoxiong@huaqin.corp-partner.google.com/
> 
> Changes between V3 and V2:
> -  1. Separate the Starry bindings from kingdisplay, and add it to panel-simple-dsi.yaml
> 
> v2: https://lore.kernel.org/all/20240601084528.22502-4-lvzhaoxiong@huaqin.corp-partner.google.com/
> 
> Changes between V2 and V1:
> -  1. Add compatible for Starry er88577 in Kingdisplay kd101ne3 dt-bindings.
> ---
>  .../bindings/display/panel/boe,th101mb31ig002-28a.yaml          | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/boe,th101mb31ig002-28a.yaml b/Documentation/devicetree/bindings/display/panel/boe,th101mb31ig002-28a.yaml
> index 32df26cbfeed..2f251703a121 100644
> --- a/Documentation/devicetree/bindings/display/panel/boe,th101mb31ig002-28a.yaml
> +++ b/Documentation/devicetree/bindings/display/panel/boe,th101mb31ig002-28a.yaml
> @@ -17,6 +17,8 @@ properties:
>      enum:
>          # BOE TH101MB31IG002-28A 10.1" WXGA TFT LCD panel
>        - boe,th101mb31ig002-28a
> +        # The Starry-er88577 is a 10.1" WXGA TFT-LCD panel
> +      - starry,er88577
>  
>    reg: true
>    backlight: true
> -- 
> 2.17.1
> 

[-- Attachment #2: signature.asc --]
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Re: [PATCH v5 1/5] drm/panel: boe-th101mb31ig002 : Make it compatible with other panel.

[neil.armstrong]

On 04/07/2024 09:29, Zhaoxiong Lv wrote:
> This driver currently only applies to one panel. Modify it to be
> compatible with other panels.
> 
> Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
> ---
>   .../drm/panel/panel-boe-th101mb31ig002-28a.c  | 40 +++++++++++++++----
>   1 file changed, 33 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
> index 763e9f8342d3..159e401ad0e6 100644
> --- a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
> +++ b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
> @@ -17,11 +17,21 @@
>   #include <drm/drm_modes.h>
>   #include <drm/drm_panel.h>
>   
> +struct panel_desc {
> +	const struct drm_display_mode *modes;
> +	unsigned long mode_flags;
> +	enum mipi_dsi_pixel_format format;
> +	const struct panel_init_cmd *init_cmds;
> +	unsigned int lanes;
> +};
> +
>   struct boe_th101mb31ig002 {
>   	struct drm_panel panel;
>   
>   	struct mipi_dsi_device *dsi;
>   
> +	const struct panel_desc *desc;
> +
>   	struct regulator *power;
>   	struct gpio_desc *enable;
>   	struct gpio_desc *reset;
> @@ -161,7 +171,10 @@ static int boe_th101mb31ig002_prepare(struct drm_panel *panel)
>   	gpiod_set_value_cansleep(ctx->enable, 1);
>   	msleep(50);
>   	boe_th101mb31ig002_reset(ctx);
> -	boe_th101mb31ig002_enable(panel);
> +
> +	ret = ctx->desc->init(ctx);
> +	if (ret)
> +		return ret;

There's no ->init in struct panel_desc

>   
>   	return 0;
>   }
> @@ -181,6 +194,16 @@ static const struct drm_display_mode boe_th101mb31ig002_default_mode = {
>   	.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
>   };
>   
> +static const struct panel_desc boe_th101mb31ig002_desc = {
> +	.modes = &boe_th101mb31ig002_default_mode,
> +	.lanes = 4,
> +	.format = MIPI_DSI_FMT_RGB888,
> +	.mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
> +			  MIPI_DSI_MODE_NO_EOT_PACKET |
> +			  MIPI_DSI_MODE_LPM,
> +	.init_cmds = boe_th101mb31ig002_enable,
> +};
> +
>   static int boe_th101mb31ig002_get_modes(struct drm_panel *panel,
>   					struct drm_connector *connector)
>   {
> @@ -237,6 +260,7 @@ static const struct drm_panel_funcs boe_th101mb31ig002_funcs = {
>   static int boe_th101mb31ig002_dsi_probe(struct mipi_dsi_device *dsi)
>   {
>   	struct boe_th101mb31ig002 *ctx;
> +	const struct panel_desc *desc;
>   	int ret;
>   
>   	ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL);
> @@ -246,11 +270,11 @@ static int boe_th101mb31ig002_dsi_probe(struct mipi_dsi_device *dsi)
>   	mipi_dsi_set_drvdata(dsi, ctx);
>   	ctx->dsi = dsi;
>   
> -	dsi->lanes = 4;
> -	dsi->format = MIPI_DSI_FMT_RGB888;
> -	dsi->mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
> -			  MIPI_DSI_MODE_NO_EOT_PACKET |
> -			  MIPI_DSI_MODE_LPM;
> +	desc = of_device_get_match_data(&dsi->dev);

use device_get_match_data() instead, and check the return

> +	dsi->lanes = desc->lanes;
> +	dsi->format = desc->format;
> +	dsi->mode_flags = desc->mode_flags;
> +	ctx->desc = desc;
>   
>   	ctx->power = devm_regulator_get(&dsi->dev, "power");
>   	if (IS_ERR(ctx->power))
> @@ -302,7 +326,9 @@ static void boe_th101mb31ig002_dsi_remove(struct mipi_dsi_device *dsi)
>   }
>   
>   static const struct of_device_id boe_th101mb31ig002_of_match[] = {
> -	{ .compatible = "boe,th101mb31ig002-28a", },
> +	{ .compatible = "boe,th101mb31ig002-28a",
> +	  .data = &boe_th101mb31ig002_desc
> +	},

Weird indentation, please use :
	{
		.compatible = ..,
		.data = ...,
	},

>   	{ /* sentinel */ }
>   };
>   MODULE_DEVICE_TABLE(of, boe_th101mb31ig002_of_match);

Thanks,
Neil

Re: [PATCH v5 2/5] drm/panel: boe-th101mb31ig002: switch to devm_gpiod_get_optional() for reset_gpio

[neil.armstrong]

On 04/07/2024 09:29, Zhaoxiong Lv wrote:
> Switch the driver to use devm_gpiod_get_optional() on reset_gpio to avoid
> driver probe issues when reset line is not specified.
> 
> Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
> ---
>   drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
> index 159e401ad0e6..9f225c15b21c 100644
> --- a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
> +++ b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
> @@ -286,7 +286,7 @@ static int boe_th101mb31ig002_dsi_probe(struct mipi_dsi_device *dsi)
>   		return dev_err_probe(&dsi->dev, PTR_ERR(ctx->enable),
>   				     "Failed to get enable GPIO\n");
>   
> -	ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_HIGH);
> +	ctx->reset = devm_gpiod_get_optional(&dsi->dev, "reset", GPIOD_OUT_HIGH);
>   	if (IS_ERR(ctx->reset))
>   		return dev_err_probe(&dsi->dev, PTR_ERR(ctx->reset),
>   				     "Failed to get reset GPIO\n");

Hmm, the reset gpio is not in the bindings, please fix that!

Neil

Re: [PATCH v5 3/5] drm/panel: boe-th101mb31ig002: use wrapped MIPI DCS functions

[neil.armstrong]

On 04/07/2024 09:29, Zhaoxiong Lv wrote:
> Remove conditional code and always use mipi_dsi_dcs_*multi() wrappers to
> simplify driver's init/enable/exit code.
> 
> Convert the hex in init_code from UPPERCASE to lowercase.
> 
> Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
> ---
>   .../drm/panel/panel-boe-th101mb31ig002-28a.c  | 143 ++++++++----------
>   1 file changed, 63 insertions(+), 80 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
> index 9f225c15b21c..736bfba607cf 100644
> --- a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
> +++ b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
> @@ -17,11 +17,13 @@
>   #include <drm/drm_modes.h>
>   #include <drm/drm_panel.h>
>   
> +struct boe_th101mb31ig002;
> +
>   struct panel_desc {
>   	const struct drm_display_mode *modes;
>   	unsigned long mode_flags;
>   	enum mipi_dsi_pixel_format format;
> -	const struct panel_init_cmd *init_cmds;
> +	int (*init)(struct boe_th101mb31ig002 *ctx);
>   	unsigned int lanes;
>   };
>   
> @@ -49,74 +51,61 @@ static void boe_th101mb31ig002_reset(struct boe_th101mb31ig002 *ctx)
>   	usleep_range(5000, 6000);
>   }
>   
> -static int boe_th101mb31ig002_enable(struct drm_panel *panel)
> +static int boe_th101mb31ig002_enable(struct boe_th101mb31ig002 *ctx)
>   {
> -	struct boe_th101mb31ig002 *ctx = container_of(panel,
> -						      struct boe_th101mb31ig002,
> -						      panel);
> -	struct mipi_dsi_device *dsi = ctx->dsi;
> -	struct device *dev = &dsi->dev;
> -	int ret;
> -
> -	mipi_dsi_dcs_write_seq(dsi, 0xE0, 0xAB, 0xBA);
> -	mipi_dsi_dcs_write_seq(dsi, 0xE1, 0xBA, 0xAB);
> -	mipi_dsi_dcs_write_seq(dsi, 0xB1, 0x10, 0x01, 0x47, 0xFF);
> -	mipi_dsi_dcs_write_seq(dsi, 0xB2, 0x0C, 0x14, 0x04, 0x50, 0x50, 0x14);
> -	mipi_dsi_dcs_write_seq(dsi, 0xB3, 0x56, 0x53, 0x00);
> -	mipi_dsi_dcs_write_seq(dsi, 0xB4, 0x33, 0x30, 0x04);
> -	mipi_dsi_dcs_write_seq(dsi, 0xB6, 0xB0, 0x00, 0x00, 0x10, 0x00, 0x10,
> -				    0x00);
> -	mipi_dsi_dcs_write_seq(dsi, 0xB8, 0x05, 0x12, 0x29, 0x49, 0x48, 0x00,
> -				    0x00);
> -	mipi_dsi_dcs_write_seq(dsi, 0xB9, 0x7C, 0x65, 0x55, 0x49, 0x46, 0x36,
> -				    0x3B, 0x24, 0x3D, 0x3C, 0x3D, 0x5C, 0x4C,
> -				    0x55, 0x47, 0x46, 0x39, 0x26, 0x06, 0x7C,
> -				    0x65, 0x55, 0x49, 0x46, 0x36, 0x3B, 0x24,
> -				    0x3D, 0x3C, 0x3D, 0x5C, 0x4C, 0x55, 0x47,
> -				    0x46, 0x39, 0x26, 0x06);
> -	mipi_dsi_dcs_write_seq(dsi, 0x00, 0xFF, 0x87, 0x12, 0x34, 0x44, 0x44,
> -				    0x44, 0x44, 0x98, 0x04, 0x98, 0x04, 0x0F,
> -				    0x00, 0x00, 0xC1);
> -	mipi_dsi_dcs_write_seq(dsi, 0xC1, 0x54, 0x94, 0x02, 0x85, 0x9F, 0x00,
> -				    0x7F, 0x00, 0x54, 0x00);
> -	mipi_dsi_dcs_write_seq(dsi, 0xC2, 0x17, 0x09, 0x08, 0x89, 0x08, 0x11,
> -				    0x22, 0x20, 0x44, 0xFF, 0x18, 0x00);
> -	mipi_dsi_dcs_write_seq(dsi, 0xC3, 0x86, 0x46, 0x05, 0x05, 0x1C, 0x1C,
> -				    0x1D, 0x1D, 0x02, 0x1F, 0x1F, 0x1E, 0x1E,
> -				    0x0F, 0x0F, 0x0D, 0x0D, 0x13, 0x13, 0x11,
> -				    0x11, 0x00);
> -	mipi_dsi_dcs_write_seq(dsi, 0xC4, 0x07, 0x07, 0x04, 0x04, 0x1C, 0x1C,
> -				    0x1D, 0x1D, 0x02, 0x1F, 0x1F, 0x1E, 0x1E,
> -				    0x0E, 0x0E, 0x0C, 0x0C, 0x12, 0x12, 0x10,
> -				    0x10, 0x00);
> -	mipi_dsi_dcs_write_seq(dsi, 0xC6, 0x2A, 0x2A);
> -	mipi_dsi_dcs_write_seq(dsi, 0xC8, 0x21, 0x00, 0x31, 0x42, 0x34, 0x16);
> -	mipi_dsi_dcs_write_seq(dsi, 0xCA, 0xCB, 0x43);
> -	mipi_dsi_dcs_write_seq(dsi, 0xCD, 0x0E, 0x4B, 0x4B, 0x20, 0x19, 0x6B,
> -				    0x06, 0xB3);
> -	mipi_dsi_dcs_write_seq(dsi, 0xD2, 0xE3, 0x2B, 0x38, 0x00);
> -	mipi_dsi_dcs_write_seq(dsi, 0xD4, 0x00, 0x01, 0x00, 0x0E, 0x04, 0x44,
> -				    0x08, 0x10, 0x00, 0x00, 0x00);
> -	mipi_dsi_dcs_write_seq(dsi, 0xE6, 0x80, 0x01, 0xFF, 0xFF, 0xFF, 0xFF,
> -				    0xFF, 0xFF);
> -	mipi_dsi_dcs_write_seq(dsi, 0xF0, 0x12, 0x03, 0x20, 0x00, 0xFF);
> -	mipi_dsi_dcs_write_seq(dsi, 0xF3, 0x00);
> -
> -	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
> -	if (ret < 0) {
> -		dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
> -		return ret;
> -	}
> -
> -	msleep(120);
> -
> -	ret = mipi_dsi_dcs_set_display_on(dsi);
> -	if (ret < 0) {
> -		dev_err(dev, "Failed to set panel on: %d\n", ret);
> -		return ret;
> -	}
> -
> -	return 0;
> +	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
> +
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe0, 0xab, 0xba);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe1, 0xba, 0xab);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb1, 0x10, 0x01, 0x47, 0xff);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb2, 0x0c, 0x14, 0x04, 0x50, 0x50, 0x14);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb3, 0x56, 0x53, 0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb4, 0x33, 0x30, 0x04);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb6, 0xb0, 0x00, 0x00, 0x10, 0x00, 0x10,
> +					       0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb8, 0x05, 0x12, 0x29, 0x49, 0x48, 0x00,
> +					       0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb9, 0x7c, 0x65, 0x55, 0x49, 0x46, 0x36,
> +					       0x3b, 0x24, 0x3d, 0x3c, 0x3d, 0x5c, 0x4c,
> +					       0x55, 0x47, 0x46, 0x39, 0x26, 0x06, 0x7c,
> +					       0x65, 0x55, 0x49, 0x46, 0x36, 0x3b, 0x24,
> +					       0x3d, 0x3c, 0x3d, 0x5c, 0x4c, 0x55, 0x47,
> +					       0x46, 0x39, 0x26, 0x06);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x00, 0xff, 0x87, 0x12, 0x34, 0x44, 0x44,
> +					       0x44, 0x44, 0x98, 0x04, 0x98, 0x04, 0x0f,
> +					       0x00, 0x00, 0xc1);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc1, 0x54, 0x94, 0x02, 0x85, 0x9f, 0x00,
> +					       0x7f, 0x00, 0x54, 0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc2, 0x17, 0x09, 0x08, 0x89, 0x08, 0x11,
> +					       0x22, 0x20, 0x44, 0xff, 0x18, 0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc3, 0x86, 0x46, 0x05, 0x05, 0x1c, 0x1c,
> +					       0x1d, 0x1d, 0x02, 0x1f, 0x1f, 0x1e, 0x1e,
> +					       0x0f, 0x0f, 0x0d, 0x0d, 0x13, 0x13, 0x11,
> +					       0x11, 0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc4, 0x07, 0x07, 0x04, 0x04, 0x1c, 0x1c,
> +					       0x1d, 0x1d, 0x02, 0x1f, 0x1f, 0x1e, 0x1e,
> +					       0x0e, 0x0e, 0x0c, 0x0c, 0x12, 0x12, 0x10,
> +					       0x10, 0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc6, 0x2a, 0x2a);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc8, 0x21, 0x00, 0x31, 0x42, 0x34, 0x16);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xca, 0xcb, 0x43);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xcd, 0x0e, 0x4b, 0x4b, 0x20, 0x19, 0x6b,
> +					       0x06, 0xb3);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd2, 0xe3, 0x2b, 0x38, 0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd4, 0x00, 0x01, 0x00, 0x0e, 0x04, 0x44,
> +					       0x08, 0x10, 0x00, 0x00, 0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe6, 0x80, 0x01, 0xff, 0xff, 0xff, 0xff,
> +					       0xff, 0xff);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x12, 0x03, 0x20, 0x00, 0xff);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf3, 0x00);
> +
> +	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 120);
> +
> +	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
> +
> +	return dsi_ctx.accum_err;
>   }
>   
>   static int boe_th101mb31ig002_disable(struct drm_panel *panel)
> @@ -124,21 +113,15 @@ static int boe_th101mb31ig002_disable(struct drm_panel *panel)
>   	struct boe_th101mb31ig002 *ctx = container_of(panel,
>   						      struct boe_th101mb31ig002,
>   						      panel);
> -	struct mipi_dsi_device *dsi = ctx->dsi;
> -	struct device *dev = &dsi->dev;
> -	int ret;
> +	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
>   
> -	ret = mipi_dsi_dcs_set_display_off(dsi);
> -	if (ret < 0)
> -		dev_err(dev, "Failed to set panel off: %d\n", ret);
> +	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
>   
> -	msleep(120);
> +	mipi_dsi_msleep(&dsi_ctx, 120);
>   
> -	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
> -	if (ret < 0)
> -		dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
> +	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
>   
> -	return 0;
> +	return dsi_ctx.accum_err;
>   }
>   
>   static int boe_th101mb31ig002_unprepare(struct drm_panel *panel)
> @@ -201,7 +184,7 @@ static const struct panel_desc boe_th101mb31ig002_desc = {
>   	.mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
>   			  MIPI_DSI_MODE_NO_EOT_PACKET |
>   			  MIPI_DSI_MODE_LPM,
> -	.init_cmds = boe_th101mb31ig002_enable,
> +	.init = boe_th101mb31ig002_enable,
>   };
>   
>   static int boe_th101mb31ig002_get_modes(struct drm_panel *panel,

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

Re: [PATCH v5 5/5] drm/panel: :boe-th101mb31ig002: Support for starry-er88577 MIPI-DSI panel

[neil.armstrong]

On 04/07/2024 09:29, Zhaoxiong Lv wrote:
> The init_code of the starry-er88577 panel is very similar to the
> panel-boe-th101mb31ig002-28a.c driver, so we make it compatible with
> the panel-boe-th101mb31ig002-28a.c driver
> 
> Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
> ---
> Changes between V5 and V4:
> -  1. Compatible with starry-er88577 panel in panel-boe-th101mb31ig002-28a.c driver,.
> v4: https://lore.kernel.org/all/20240620115245.31540-3-lvzhaoxiong@huaqin.corp-partner.google.com/
> 
> Changes between V4 and V3:
> -  1. Adjust the ".clock" assignment format.
> v3: https://lore.kernel.org/all/20240614145609.25432-3-lvzhaoxiong@huaqin.corp-partner.google.com/
> 
> Changes between V3 and V2:
> -  Separate Starry-er88577 from the panel-kingdisplay-kd101ne3 driver.
> -  Use mipi_dsi_dcs_set_display_on_multi().
> -  Use mipi_dsi_dcs_exit_sleep_mode_multi() and mipi_dsi_msleep().
> v2: https://lore.kernel.org/all/20240601084528.22502-5-lvzhaoxiong@huaqin.corp-partner.google.com/
> 
> Changes between V2 and V1:
> -  Add compatible for Starry er88577 in panel-kingdisplay-kd101ne3 drivers.
> 
> ---
>   .../drm/panel/panel-boe-th101mb31ig002-28a.c  | 119 ++++++++++++++++++
>   1 file changed, 119 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
> index 736bfba607cf..c103236cc970 100644
> --- a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
> +++ b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
> @@ -25,6 +25,12 @@ struct panel_desc {
>   	enum mipi_dsi_pixel_format format;
>   	int (*init)(struct boe_th101mb31ig002 *ctx);
>   	unsigned int lanes;
> +	bool lp11_before_reset;
> +	unsigned int vcioo_to_lp11_delay_ms;
> +	unsigned int lp11_to_reset_delay_ms;
> +	unsigned int backlight_off_to_display_off_delay_ms;
> +	unsigned int enter_sleep_to_reset_down_delay_ms;
> +	unsigned int power_off_delay_ms;
>   };
>   
>   struct boe_th101mb31ig002 {
> @@ -108,6 +114,65 @@ static int boe_th101mb31ig002_enable(struct boe_th101mb31ig002 *ctx)
>   	return dsi_ctx.accum_err;
>   }
>   
> +static int starry_er88577_init_cmd(struct boe_th101mb31ig002 *ctx)
> +{
> +	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
> +
> +	msleep(70);
> +
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe0, 0xab, 0xba);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe1, 0xba, 0xab);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb1, 0x10, 0x01, 0x47, 0xff);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb2, 0x0c, 0x14, 0x04, 0x50, 0x50, 0x14);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb3, 0x56, 0x53, 0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb4, 0x33, 0x30, 0x04);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb6, 0xb0, 0x00, 0x00, 0x10, 0x00, 0x10,
> +					       0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb8, 0x05, 0x12, 0x29, 0x49, 0x40);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb9, 0x7c, 0x61, 0x4f, 0x42, 0x3e, 0x2d,
> +					       0x31, 0x1a, 0x33, 0x33, 0x33, 0x52, 0x40,
> +					       0x47, 0x38, 0x34, 0x26, 0x0e, 0x06, 0x7c,
> +					       0x61, 0x4f, 0x42, 0x3e, 0x2d, 0x31, 0x1a,
> +					       0x33, 0x33, 0x33, 0x52, 0x40, 0x47, 0x38,
> +					       0x34, 0x26, 0x0e, 0x06);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc0, 0xcc, 0x76, 0x12, 0x34, 0x44, 0x44,
> +					       0x44, 0x44, 0x98, 0x04, 0x98, 0x04, 0x0f,
> +					       0x00, 0x00, 0xc1);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc1, 0x54, 0x94, 0x02, 0x85, 0x9f, 0x00,
> +					       0x6f, 0x00, 0x54, 0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc2, 0x17, 0x09, 0x08, 0x89, 0x08, 0x11,
> +					       0x22, 0x20, 0x44, 0xff, 0x18, 0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc3, 0x87, 0x47, 0x05, 0x05, 0x1c, 0x1c,
> +					       0x1d, 0x1d, 0x02, 0x1e, 0x1e, 0x1f, 0x1f,
> +					       0x0f, 0x0f, 0x0d, 0x0d, 0x13, 0x13, 0x11,
> +					       0x11, 0x24);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc4, 0x06, 0x06, 0x04, 0x04, 0x1c, 0x1c,
> +					       0x1d, 0x1d, 0x02, 0x1e, 0x1e, 0x1f, 0x1f,
> +					       0x0e, 0x0e, 0x0c, 0x0c, 0x12, 0x12, 0x10,
> +					       0x10, 0x24);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc8, 0x21, 0x00, 0x31, 0x42, 0x34, 0x16);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xca, 0xcb, 0x43);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xcd, 0x0e, 0x4b, 0x4b, 0x20, 0x19, 0x6b,
> +					       0x06, 0xb3);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd2, 0xe3, 0x2b, 0x38, 0x08);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd4, 0x00, 0x01, 0x00, 0x0e, 0x04, 0x44,
> +					       0x08, 0x10, 0x00, 0x00, 0x00);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe6, 0x80, 0x09, 0xff, 0xff, 0xff, 0xff,
> +					       0xff, 0xff);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x12, 0x03, 0x20, 0x00, 0xff);
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf3, 0x00);
> +
> +	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 120);
> +
> +	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 20);
> +
> +	return dsi_ctx.accum_err;
> +}
> +
>   static int boe_th101mb31ig002_disable(struct drm_panel *panel)
>   {
>   	struct boe_th101mb31ig002 *ctx = container_of(panel,
> @@ -115,12 +180,18 @@ static int boe_th101mb31ig002_disable(struct drm_panel *panel)
>   						      panel);
>   	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
>   
> +	if (ctx->desc->backlight_off_to_display_off_delay_ms)
> +		mipi_dsi_msleep(&dsi_ctx, ctx->desc->backlight_off_to_display_off_delay_ms);
> +
>   	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
>   
>   	mipi_dsi_msleep(&dsi_ctx, 120);
>   
>   	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
>   
> +	if (ctx->desc->enter_sleep_to_reset_down_delay_ms)
> +		mipi_dsi_msleep(&dsi_ctx, ctx->desc->enter_sleep_to_reset_down_delay_ms);
> +
>   	return dsi_ctx.accum_err;
>   }
>   
> @@ -134,6 +205,9 @@ static int boe_th101mb31ig002_unprepare(struct drm_panel *panel)
>   	gpiod_set_value_cansleep(ctx->enable, 0);
>   	regulator_disable(ctx->power);
>   
> +	if(ctx->desc->power_off_delay_ms)
> +		msleep(ctx->desc->power_off_delay_ms);
> +
>   	return 0;
>   }
>   
> @@ -151,6 +225,18 @@ static int boe_th101mb31ig002_prepare(struct drm_panel *panel)
>   		return ret;
>   	}
>   
> +	if (ctx->desc->vcioo_to_lp11_delay_ms)
> +		msleep(ctx->desc->vcioo_to_lp11_delay_ms);
> +
> +	if (ctx->desc->lp11_before_reset) {
> +		ret = mipi_dsi_dcs_nop(ctx->dsi);
> +		if (ret)
> +			return ret;
> +	}
> +
> +	if (ctx->desc->lp11_to_reset_delay_ms)
> +		msleep(ctx->desc->lp11_to_reset_delay_ms);
> +
>   	gpiod_set_value_cansleep(ctx->enable, 1);
>   	msleep(50);
>   	boe_th101mb31ig002_reset(ctx);
> @@ -187,6 +273,36 @@ static const struct panel_desc boe_th101mb31ig002_desc = {
>   	.init = boe_th101mb31ig002_enable,
>   };
>   
> +static const struct drm_display_mode starry_er88577_default_mode = {
> +	.clock	= (800 + 25 + 25 + 25) * (1280 + 20 + 4 + 12) * 60 / 1000,
> +	.hdisplay = 800,
> +	.hsync_start = 800 + 25,
> +	.hsync_end = 800 + 25 + 25,
> +	.htotal = 800 + 25 + 25 + 25,
> +	.vdisplay = 1280,
> +	.vsync_start = 1280 + 20,
> +	.vsync_end = 1280 + 20 + 4,
> +	.vtotal = 1280 + 20 + 4 + 12,
> +	.width_mm = 135,
> +	.height_mm = 216,
> +	.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
> +};
> +
> +static const struct panel_desc starry_er88577_desc = {
> +	.modes = &starry_er88577_default_mode,
> +	.lanes = 4,
> +	.format = MIPI_DSI_FMT_RGB888,
> +	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
> +		      MIPI_DSI_MODE_LPM,
> +	.init = starry_er88577_init_cmd,
> +	.lp11_before_reset = true,
> +	.vcioo_to_lp11_delay_ms = 5,
> +	.lp11_to_reset_delay_ms = 50,
> +	.backlight_off_to_display_off_delay_ms = 100,
> +	.enter_sleep_to_reset_down_delay_ms = 100,
> +	.power_off_delay_ms = 1000,
> +};
> +
>   static int boe_th101mb31ig002_get_modes(struct drm_panel *panel,
>   					struct drm_connector *connector)
>   {
> @@ -312,6 +428,9 @@ static const struct of_device_id boe_th101mb31ig002_of_match[] = {
>   	{ .compatible = "boe,th101mb31ig002-28a",
>   	  .data = &boe_th101mb31ig002_desc
>   	},
> +	{ .compatible = "starry,er88577",
> +	  .data = &starry_er88577_desc
> +	},
>   	{ /* sentinel */ }
>   };
>   MODULE_DEVICE_TABLE(of, boe_th101mb31ig002_of_match);

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>