[PATCH v3 0/2] Support Starry er88577 MIPI-DSI panel

[PATCH v3 0/2] Support Starry er88577 MIPI-DSI panel

[Zhaoxiong Lv]

The Starry is a 10.1" WXGA TFT LCD panel with er88577 controller
Because Starry-er88577 and kingdisplay-kd101ne3 are not the same IC, 
separate Starry-er88577 from the panel-kingdisplay-kd101ne3 driver.

Changes in v3:
- 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 in v2:
- 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 (2):
  dt-bindings: display: panel-simple-dsi: add Starry-er88577 DSI panel
    bindings
  drm/panel: starry-er88577: add new panel driver

 .../display/panel/panel-simple-dsi.yaml       |   2 +
 drivers/gpu/drm/panel/Kconfig                 |   9 +
 drivers/gpu/drm/panel/Makefile                |   1 +
 drivers/gpu/drm/panel/panel-starry-er88577.c  | 343 ++++++++++++++++++
 4 files changed, 355 insertions(+)
 create mode 100644 drivers/gpu/drm/panel/panel-starry-er88577.c

-- 
2.17.1

[PATCH v3 1/2] dt-bindings: display: panel-simple-dsi: add Starry-er88577 DSI panel bindings

[Zhaoxiong Lv]

This add the bindings for the 1280x800 TFT LCD Starry-er88577 DSI panel
to panel-simple-dsi.

Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
---

Chage since V3:

-  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/

Chage since V2:

-  Add compatible for Starry er88577 in Kingdisplay kd101ne3 dt-bindings.
---
 .../devicetree/bindings/display/panel/panel-simple-dsi.yaml     | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
index db5acd2807ed..1f04acefba4e 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
@@ -60,6 +60,8 @@ properties:
       - samsung,sofef00
         # Shangai Top Display Optoelectronics 7" TL070WSH30 1024x600 TFT LCD panel
       - tdo,tl070wsh30
+        # The Starry-er88577 is a 10.1" WXGA TFT-LCD panel
+      - starry,er88577
 
   reg:
     maxItems: 1
-- 
2.17.1

[PATCH v3 2/2] drm/panel: starry-er88577: add new panel driver

[Zhaoxiong Lv]

The bias IC of this starry-er88577 panel is placed
on the panel side, so when the panel is powered on,
there is no need to control AVDD and AVEE in the driver,
only 3.3v and reset are needed.

Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>

---

Chage since V3:

-  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/

Chage since V2:

-  Add compatible for Starry er88577 in panel-kingdisplay-kd101ne3 drivers.
---
 drivers/gpu/drm/panel/Kconfig                |   9 +
 drivers/gpu/drm/panel/Makefile               |   1 +
 drivers/gpu/drm/panel/panel-starry-er88577.c | 343 +++++++++++++++++++
 3 files changed, 353 insertions(+)
 create mode 100644 drivers/gpu/drm/panel/panel-starry-er88577.c

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index e54f6f5604ed..a52aa2552ab8 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -781,6 +781,15 @@ config DRM_PANEL_SITRONIX_ST7789V
 	  Say Y here if you want to enable support for the Sitronix
 	  ST7789V controller for 240x320 LCD panels
 
+config DRM_PANEL_STARRY_ER88577
+	tristate "Starry er88577 panel"
+	depends on OF
+	depends on DRM_MIPI_DSI
+	depends on BACKLIGHT_CLASS_DEVICE
+	help
+	  Say Y if you want to enable support for panels based on the
+	  Starry er88577 controller.
+
 config DRM_PANEL_SONY_ACX565AKM
 	tristate "Sony ACX565AKM panel"
 	depends on GPIOLIB && OF && SPI
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index f0203f6e02f4..ecd843a6dc6e 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -81,6 +81,7 @@ obj-$(CONFIG_DRM_PANEL_SHARP_LS060T1SX01) += panel-sharp-ls060t1sx01.o
 obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7701) += panel-sitronix-st7701.o
 obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7703) += panel-sitronix-st7703.o
 obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o
+obj-$(CONFIG_DRM_PANEL_STARRY_ER88577) += panel-starry-er88577.o
 obj-$(CONFIG_DRM_PANEL_SYNAPTICS_R63353) += panel-synaptics-r63353.o
 obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o
 obj-$(CONFIG_DRM_PANEL_SONY_TD4353_JDI) += panel-sony-td4353-jdi.o
diff --git a/drivers/gpu/drm/panel/panel-starry-er88577.c b/drivers/gpu/drm/panel/panel-starry-er88577.c
new file mode 100644
index 000000000000..a8250a464883
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-starry-er88577.c
@@ -0,0 +1,343 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Panels based on the JD9365DA display controller.
+ * Author: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regulator/consumer.h>
+
+#include <drm/drm_connector.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_panel.h>
+
+#include <video/mipi_display.h>
+#include <drm/drm_probe_helper.h>
+
+struct starry_panel;
+
+struct panel_desc {
+	const struct drm_display_mode *modes;
+	unsigned int bpc;
+	unsigned long mode_flags;
+	enum mipi_dsi_pixel_format format;
+	const struct panel_init_cmd *init_cmds;
+	int (*init)(struct starry_panel *starry);
+	unsigned int lanes;
+	bool discharge_on_disable;
+	bool lp11_before_reset;
+	unsigned int power_off_delay_ms;
+};
+
+struct starry_panel {
+	struct drm_panel base;
+	struct mipi_dsi_device *dsi;
+
+	const struct panel_desc *desc;
+
+	enum drm_panel_orientation orientation;
+	struct regulator *vccio;
+	struct gpio_desc *reset;
+};
+
+static int starry_er88577_init(struct starry_panel *starry)
+{
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = starry->dsi };
+
+	/* T5:HWreset to init_code >= 120ms */
+	mipi_dsi_msleep(dsi_ctx, 120);
+
+	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 inline struct starry_panel *to_starry_panel(struct drm_panel *panel)
+{
+	return container_of(panel, struct starry_panel, base);
+}
+
+static int starry_panel_disable(struct drm_panel *panel)
+{
+	struct starry_panel *starry = to_starry_panel(panel);
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = starry->dsi };
+
+	starry->dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+	mipi_dsi_msleep(dsi_ctx, 100);
+
+	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
+
+	mipi_dsi_msleep(dsi_ctx, 50);
+
+	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
+
+	mipi_dsi_msleep(dsi_ctx, 120);
+
+	return dsi_ctx.accum_err;
+}
+
+static int starry_panel_unprepare(struct drm_panel *panel)
+{
+	struct starry_panel *starry = to_starry_panel(panel);
+	int err;
+
+	gpiod_set_value_cansleep(starry->reset, 0);
+
+	/* T15: 2ms */
+	usleep_range(1000, 2000);
+
+	err = regulator_disable(starry->vccio);
+	if (err < 0)
+		return err;
+
+	if (starry->desc->power_off_delay_ms)
+		msleep(starry->desc->power_off_delay_ms);
+
+	return 0;
+}
+
+static int starry_panel_prepare(struct drm_panel *panel)
+{
+	struct starry_panel *starry = to_starry_panel(panel);
+	int err;
+
+	gpiod_set_value(starry->reset, 0);
+
+	err = regulator_enable(starry->vccio);
+	if (err < 0)
+		return err;
+
+	/* T1:Vdd to mipi_lp >= 0ms */
+	usleep_range(5000, 6000);
+
+	if (starry->desc->lp11_before_reset) {
+		err = mipi_dsi_dcs_nop(starry->dsi);
+		if (err < 0)
+			goto poweroff;
+
+		usleep_range(1000, 2000);
+	}
+
+	/* T2: 10ms, T1 + T2 > 60ms */
+	msleep(60);
+
+	gpiod_set_value_cansleep(starry->reset, 1);
+
+	err = starry->desc->init(starry);
+	if (err < 0)
+		goto poweroff;
+
+	return 0;
+
+poweroff:
+	gpiod_set_value(starry->reset, 0);
+		/* T6: 2ms */
+	usleep_range(1000, 2000);
+	regulator_disable(starry->vccio);
+
+	return err;
+}
+
+static int starry_panel_enable(struct drm_panel *panel)
+{
+	msleep(130);
+	return 0;
+}
+
+static const struct drm_display_mode starry_er88577_default_mode = {
+	.clock = 77380,
+	.hdisplay = 800,
+	.hsync_start = 800 + 80,
+	.hsync_end = 800 + 80 + 20,
+	.htotal = 800 + 80 + 20 + 80,
+	.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,
+	.bpc = 8,
+	.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,
+	.lp11_before_reset = true,
+	.power_off_delay_ms = 1000,
+};
+
+static int starry_panel_get_modes(struct drm_panel *panel,
+			       struct drm_connector *connector)
+{
+	struct starry_panel *starry = to_starry_panel(panel);
+	const struct drm_display_mode *mode = starry->desc->modes;
+
+	return drm_connector_helper_get_modes_fixed(connector, mode);
+}
+
+static enum drm_panel_orientation starry_panel_get_orientation(struct drm_panel *panel)
+{
+	struct starry_panel *starry = to_starry_panel(panel);
+
+	return starry->orientation;
+}
+
+static const struct drm_panel_funcs starry_panel_funcs = {
+	.disable = starry_panel_disable,
+	.unprepare = starry_panel_unprepare,
+	.prepare = starry_panel_prepare,
+	.enable = starry_panel_enable,
+	.get_modes = starry_panel_get_modes,
+	.get_orientation = starry_panel_get_orientation,
+};
+
+static int starry_panel_add(struct starry_panel *starry)
+{
+	struct device *dev = &starry->dsi->dev;
+	int err;
+
+	starry->vccio = devm_regulator_get(dev, "vccio");
+	if (IS_ERR(starry->vccio))
+		return dev_err_probe(dev, PTR_ERR(starry->vccio),
+				     "Cannot get vccio\n");
+
+	starry->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+	if (IS_ERR(starry->reset))
+		return dev_err_probe(dev, PTR_ERR(starry->reset),
+				     "Cannot get reset GPIO\n");
+
+	drm_panel_init(&starry->base, dev, &starry_panel_funcs,
+		       DRM_MODE_CONNECTOR_DSI);
+
+	err = of_drm_get_panel_orientation(dev->of_node, &starry->orientation);
+	if (err < 0) {
+		dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, err);
+		return err;
+	}
+
+	err = drm_panel_of_backlight(&starry->base);
+	if (err)
+		return err;
+
+	starry->base.funcs = &starry_panel_funcs;
+	starry->base.dev = &starry->dsi->dev;
+
+	drm_panel_add(&starry->base);
+
+	return 0;
+}
+
+static int starry_panel_probe(struct mipi_dsi_device *dsi)
+{
+	struct starry_panel *starry;
+	int ret;
+	const struct panel_desc *desc;
+
+	starry = devm_kzalloc(&dsi->dev, sizeof(*starry), GFP_KERNEL);
+	if (!starry)
+		return -ENOMEM;
+
+	desc = of_device_get_match_data(&dsi->dev);
+	dsi->lanes = desc->lanes;
+	dsi->format = desc->format;
+	dsi->mode_flags = desc->mode_flags;
+	starry->desc = desc;
+	starry->dsi = dsi;
+	ret = starry_panel_add(starry);
+	if (ret < 0)
+		return ret;
+
+	mipi_dsi_set_drvdata(dsi, starry);
+
+	ret = mipi_dsi_attach(dsi);
+	if (ret)
+		drm_panel_remove(&starry->base);
+
+	return ret;
+}
+
+static void starry_panel_remove(struct mipi_dsi_device *dsi)
+{
+	struct starry_panel *starry = mipi_dsi_get_drvdata(dsi);
+	int ret;
+
+	ret = mipi_dsi_detach(dsi);
+	if (ret < 0)
+		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);
+
+	if (starry->base.dev)
+		drm_panel_remove(&starry->base);
+}
+
+static const struct of_device_id starry_of_match[] = {
+	{ .compatible = "starry,er88577",
+	  .data = &starry_er88577_desc
+	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, starry_of_match);
+
+static struct mipi_dsi_driver starry_panel_driver = {
+	.driver = {
+		.name = "panel-starry-er88577",
+		.of_match_table = starry_of_match,
+	},
+	.probe = starry_panel_probe,
+	.remove = starry_panel_remove,
+};
+module_mipi_dsi_driver(starry_panel_driver);
+
+MODULE_AUTHOR("Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>");
+MODULE_DESCRIPTION("starry er88577 800x1280 video mode panel driver");
+MODULE_LICENSE("GPL v2");
-- 
2.17.1

Re: [PATCH v3 2/2] drm/panel: starry-er88577: add new panel driver

[Dmitry Baryshkov]

On Fri, Jun 14, 2024 at 10:56:09PM GMT, Zhaoxiong Lv wrote:
> The bias IC of this starry-er88577 panel is placed
> on the panel side, so when the panel is powered on,
> there is no need to control AVDD and AVEE in the driver,
> only 3.3v and reset are needed.
> 
> Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
> 
> ---
> 
> Chage since V3:
> 
> -  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/
> 
> Chage since V2:
> 
> -  Add compatible for Starry er88577 in panel-kingdisplay-kd101ne3 drivers.
> ---
>  drivers/gpu/drm/panel/Kconfig                |   9 +
>  drivers/gpu/drm/panel/Makefile               |   1 +
>  drivers/gpu/drm/panel/panel-starry-er88577.c | 343 +++++++++++++++++++
>  3 files changed, 353 insertions(+)
>  create mode 100644 drivers/gpu/drm/panel/panel-starry-er88577.c
> 
> diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> index e54f6f5604ed..a52aa2552ab8 100644
> --- a/drivers/gpu/drm/panel/Kconfig
> +++ b/drivers/gpu/drm/panel/Kconfig
> @@ -781,6 +781,15 @@ config DRM_PANEL_SITRONIX_ST7789V
>  	  Say Y here if you want to enable support for the Sitronix
>  	  ST7789V controller for 240x320 LCD panels
>  
> +config DRM_PANEL_STARRY_ER88577
> +	tristate "Starry er88577 panel"
> +	depends on OF
> +	depends on DRM_MIPI_DSI
> +	depends on BACKLIGHT_CLASS_DEVICE
> +	help
> +	  Say Y if you want to enable support for panels based on the
> +	  Starry er88577 controller.
> +
>  config DRM_PANEL_SONY_ACX565AKM
>  	tristate "Sony ACX565AKM panel"
>  	depends on GPIOLIB && OF && SPI
> diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
> index f0203f6e02f4..ecd843a6dc6e 100644
> --- a/drivers/gpu/drm/panel/Makefile
> +++ b/drivers/gpu/drm/panel/Makefile
> @@ -81,6 +81,7 @@ obj-$(CONFIG_DRM_PANEL_SHARP_LS060T1SX01) += panel-sharp-ls060t1sx01.o
>  obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7701) += panel-sitronix-st7701.o
>  obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7703) += panel-sitronix-st7703.o
>  obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o
> +obj-$(CONFIG_DRM_PANEL_STARRY_ER88577) += panel-starry-er88577.o
>  obj-$(CONFIG_DRM_PANEL_SYNAPTICS_R63353) += panel-synaptics-r63353.o
>  obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o
>  obj-$(CONFIG_DRM_PANEL_SONY_TD4353_JDI) += panel-sony-td4353-jdi.o
> diff --git a/drivers/gpu/drm/panel/panel-starry-er88577.c b/drivers/gpu/drm/panel/panel-starry-er88577.c
> new file mode 100644
> index 000000000000..a8250a464883
> --- /dev/null
> +++ b/drivers/gpu/drm/panel/panel-starry-er88577.c
> @@ -0,0 +1,343 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/* Panels based on the JD9365DA display controller.
> + * Author: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
> + */
> +
> +#include <linux/delay.h>
> +#include <linux/gpio/consumer.h>
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/regulator/consumer.h>
> +
> +#include <drm/drm_connector.h>
> +#include <drm/drm_crtc.h>
> +#include <drm/drm_mipi_dsi.h>
> +#include <drm/drm_panel.h>
> +
> +#include <video/mipi_display.h>
> +#include <drm/drm_probe_helper.h>
> +
> +struct starry_panel;
> +
> +struct panel_desc {
> +	const struct drm_display_mode *modes;
> +	unsigned int bpc;
> +	unsigned long mode_flags;
> +	enum mipi_dsi_pixel_format format;
> +	const struct panel_init_cmd *init_cmds;
> +	int (*init)(struct starry_panel *starry);
> +	unsigned int lanes;
> +	bool discharge_on_disable;
> +	bool lp11_before_reset;
> +	unsigned int power_off_delay_ms;
> +};
> +
> +struct starry_panel {
> +	struct drm_panel base;
> +	struct mipi_dsi_device *dsi;
> +
> +	const struct panel_desc *desc;
> +
> +	enum drm_panel_orientation orientation;
> +	struct regulator *vccio;
> +	struct gpio_desc *reset;
> +};
> +
> +static int starry_er88577_init(struct starry_panel *starry)
> +{
> +	struct mipi_dsi_multi_context dsi_ctx = { .dsi = starry->dsi };
> +
> +	/* T5:HWreset to init_code >= 120ms */
> +	mipi_dsi_msleep(dsi_ctx, 120);
> +
> +	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);

This looks pretty close to panel-boe-th101mb31ig002-28a.c

> +
> +	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
> +


-- 
With best wishes
Dmitry

Re: [PATCH v3 1/2] dt-bindings: display: panel-simple-dsi: add Starry-er88577 DSI panel bindings

[Krzysztof Kozlowski]

On 14/06/2024 16:56, Zhaoxiong Lv wrote:
> This add the bindings for the 1280x800 TFT LCD Starry-er88577 DSI panel

A nit, subject: drop second/last, redundant "bindings". The
"dt-bindings" prefix is already stating that these are bindings.
See also:
https://elixir.bootlin.com/linux/v6.7-rc8/source/Documentation/devicetree/bindings/submitting-patches.rst#L18


> to panel-simple-dsi.
> 
> Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
> ---


> diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
> index db5acd2807ed..1f04acefba4e 100644
> --- a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
> +++ b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
> @@ -60,6 +60,8 @@ properties:
>        - samsung,sofef00
>          # Shangai Top Display Optoelectronics 7" TL070WSH30 1024x600 TFT LCD panel
>        - tdo,tl070wsh30
> +        # The Starry-er88577 is a 10.1" WXGA TFT-LCD panel
> +      - starry,er88577

Don't add to the end of lists, but keep proper alphabetical order.

Best regards,
Krzysztof

Re: [PATCH v3 2/2] drm/panel: starry-er88577: add new panel driver

[zhaoxiong lv]

hi Dmitry

We checked the panel-boe-th101mb31ig002-28a.c driver. Although the
init_code is similar, the IC does not seem to be the same from the
name, and our panel and timing are also different.

On Sat, Jun 15, 2024 at 1:25 AM Dmitry Baryshkov
<dmitry.baryshkov@linaro.org> wrote:
>
> On Fri, Jun 14, 2024 at 10:56:09PM GMT, Zhaoxiong Lv wrote:
> > The bias IC of this starry-er88577 panel is placed
> > on the panel side, so when the panel is powered on,
> > there is no need to control AVDD and AVEE in the driver,
> > only 3.3v and reset are needed.
> >
> > Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
> >
> > ---
> >
> > Chage since V3:
> >
> > -  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/
> >
> > Chage since V2:
> >
> > -  Add compatible for Starry er88577 in panel-kingdisplay-kd101ne3 drivers.
> > ---
> >  drivers/gpu/drm/panel/Kconfig                |   9 +
> >  drivers/gpu/drm/panel/Makefile               |   1 +
> >  drivers/gpu/drm/panel/panel-starry-er88577.c | 343 +++++++++++++++++++
> >  3 files changed, 353 insertions(+)
> >  create mode 100644 drivers/gpu/drm/panel/panel-starry-er88577.c
> >
> > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> > index e54f6f5604ed..a52aa2552ab8 100644
> > --- a/drivers/gpu/drm/panel/Kconfig
> > +++ b/drivers/gpu/drm/panel/Kconfig
> > @@ -781,6 +781,15 @@ config DRM_PANEL_SITRONIX_ST7789V
> >         Say Y here if you want to enable support for the Sitronix
> >         ST7789V controller for 240x320 LCD panels
> >
> > +config DRM_PANEL_STARRY_ER88577
> > +     tristate "Starry er88577 panel"
> > +     depends on OF
> > +     depends on DRM_MIPI_DSI
> > +     depends on BACKLIGHT_CLASS_DEVICE
> > +     help
> > +       Say Y if you want to enable support for panels based on the
> > +       Starry er88577 controller.
> > +
> >  config DRM_PANEL_SONY_ACX565AKM
> >       tristate "Sony ACX565AKM panel"
> >       depends on GPIOLIB && OF && SPI
> > diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
> > index f0203f6e02f4..ecd843a6dc6e 100644
> > --- a/drivers/gpu/drm/panel/Makefile
> > +++ b/drivers/gpu/drm/panel/Makefile
> > @@ -81,6 +81,7 @@ obj-$(CONFIG_DRM_PANEL_SHARP_LS060T1SX01) += panel-sharp-ls060t1sx01.o
> >  obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7701) += panel-sitronix-st7701.o
> >  obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7703) += panel-sitronix-st7703.o
> >  obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o
> > +obj-$(CONFIG_DRM_PANEL_STARRY_ER88577) += panel-starry-er88577.o
> >  obj-$(CONFIG_DRM_PANEL_SYNAPTICS_R63353) += panel-synaptics-r63353.o
> >  obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o
> >  obj-$(CONFIG_DRM_PANEL_SONY_TD4353_JDI) += panel-sony-td4353-jdi.o
> > diff --git a/drivers/gpu/drm/panel/panel-starry-er88577.c b/drivers/gpu/drm/panel/panel-starry-er88577.c
> > new file mode 100644
> > index 000000000000..a8250a464883
> > --- /dev/null
> > +++ b/drivers/gpu/drm/panel/panel-starry-er88577.c
> > @@ -0,0 +1,343 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/* Panels based on the JD9365DA display controller.
> > + * Author: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
> > + */
> > +
> > +#include <linux/delay.h>
> > +#include <linux/gpio/consumer.h>
> > +#include <linux/module.h>
> > +#include <linux/of.h>
> > +#include <linux/regulator/consumer.h>
> > +
> > +#include <drm/drm_connector.h>
> > +#include <drm/drm_crtc.h>
> > +#include <drm/drm_mipi_dsi.h>
> > +#include <drm/drm_panel.h>
> > +
> > +#include <video/mipi_display.h>
> > +#include <drm/drm_probe_helper.h>
> > +
> > +struct starry_panel;
> > +
> > +struct panel_desc {
> > +     const struct drm_display_mode *modes;
> > +     unsigned int bpc;
> > +     unsigned long mode_flags;
> > +     enum mipi_dsi_pixel_format format;
> > +     const struct panel_init_cmd *init_cmds;
> > +     int (*init)(struct starry_panel *starry);
> > +     unsigned int lanes;
> > +     bool discharge_on_disable;
> > +     bool lp11_before_reset;
> > +     unsigned int power_off_delay_ms;
> > +};
> > +
> > +struct starry_panel {
> > +     struct drm_panel base;
> > +     struct mipi_dsi_device *dsi;
> > +
> > +     const struct panel_desc *desc;
> > +
> > +     enum drm_panel_orientation orientation;
> > +     struct regulator *vccio;
> > +     struct gpio_desc *reset;
> > +};
> > +
> > +static int starry_er88577_init(struct starry_panel *starry)
> > +{
> > +     struct mipi_dsi_multi_context dsi_ctx = { .dsi = starry->dsi };
> > +
> > +     /* T5:HWreset to init_code >= 120ms */
> > +     mipi_dsi_msleep(dsi_ctx, 120);
> > +
> > +     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);
>
> This looks pretty close to panel-boe-th101mb31ig002-28a.c
>
> > +
> > +     mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
> > +
>
>
> --
> With best wishes
> Dmitry