From a8102021ac455eac4e0ceca0277696d55726c774 Mon Sep 17 00:00:00 2001
From: kun_liu <kun_liu@shtdo.com>
Date: Thu, 16 Apr 2026 11:10:38 +0800
Subject: [PATCH 1/3] drm/panel: add TDO DSI V1 panel driver

panel-tdo-dsi-v1.c as module to driver tdo panel.

Signed-off-by: kun_liu <kun_liu@shtdo.com>
---
 drivers/gpu/drm/panel/Kconfig            |  14 +
 drivers/gpu/drm/panel/Makefile           |   1 +
 drivers/gpu/drm/panel/panel-tdo-dsi-v1.c | 487 +++++++++++++++++++++++
 3 files changed, 502 insertions(+)
 create mode 100644 drivers/gpu/drm/panel/panel-tdo-dsi-v1.c

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index edaaf7eb2f0948..7dafffe00f24b5 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -1087,6 +1087,20 @@ config DRM_PANEL_TPO_Y17P
 	  Say Y if you want to enable support for panels based on the
 	  TDO Y17P controller.
 
+config DRM_PANEL_TDO_DSI_V1
+        tristate "TDO touchscreen panels V1"
+        depends on DRM_MIPI_DSI
+        depends on I2C
+        depends on BACKLIGHT_CLASS_DEVICE
+        help
+           Say Y here if you want to enable support for TDO DSI
+      	   touchscreen panels, e.g. tl034wvs03, tl040hds31, etc.
+      	   This driver provides MIPI DSI display interface.
+		   It also handles backlight control via the backlight
+		   class device.
+		   To compile this driver as a module, choose M here; the
+           module will be called panel-tdo-dsi-v1.
+
 config DRM_PANEL_TPO_TD028TTEC1
 	tristate "Toppoly (TPO) TD028TTEC1 panel driver"
 	depends on OF && SPI
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 19871edb64366a..75f6bf2729a602 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -108,6 +108,7 @@ obj-$(CONFIG_DRM_PANEL_SONY_TULIP_TRULY_NT35521) += panel-sony-tulip-truly-nt355
 obj-$(CONFIG_DRM_PANEL_STARTEK_KD070FHFID015) += panel-startek-kd070fhfid015.o
 obj-$(CONFIG_DRM_PANEL_TDO_TL070WSH30) += panel-tdo-tl070wsh30.o
 obj-$(CONFIG_DRM_PANEL_TPO_Y17P) += panel-tdo-y17p.o
+obj-$(CONFIG_DRM_PANEL_TDO_DSI_V1) += panel-tdo-dsi-v1.o
 obj-$(CONFIG_DRM_PANEL_TPO_TD028TTEC1) += panel-tpo-td028ttec1.o
 obj-$(CONFIG_DRM_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o
 obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o
diff --git a/drivers/gpu/drm/panel/panel-tdo-dsi-v1.c b/drivers/gpu/drm/panel/panel-tdo-dsi-v1.c
new file mode 100644
index 00000000000000..ffba274c5dd9c6
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-tdo-dsi-v1.c
@@ -0,0 +1,487 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2026 TDO International Limited
+ *
+ * Based on panel-raspberrypi-touchscreen by Broadcom
+ */
+
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_device.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+#include <video/mipi_display.h>
+
+struct tdo_panel_desc {
+	const struct panel_init_cmd *init;
+	const struct drm_display_mode *mode;
+	const unsigned long mode_flags;
+	unsigned int lanes;
+	enum mipi_dsi_pixel_format format;
+};
+
+struct tdo_panel {
+	struct drm_panel panel;
+	struct mipi_dsi_device *dsi;
+	const struct tdo_panel_desc *desc;
+
+	struct regulator *power;
+	struct gpio_desc *reset;
+
+	enum drm_panel_orientation orientation;
+};
+
+enum dsi_cmd_type {
+	INIT_DCS_CMD,
+	DELAY_CMD,
+};
+
+struct panel_init_cmd {
+	enum dsi_cmd_type type;
+	size_t len;
+	const char *data;
+};
+
+#define _INIT_DCS_CMD(...)                                                    \
+	{                                                                     \
+		.type = INIT_DCS_CMD, .len = sizeof((char[]){ __VA_ARGS__ }), \
+		.data = (char[])                                              \
+		{                                                             \
+			__VA_ARGS__                                           \
+		}                                                             \
+	}
+
+#define _INIT_DELAY_CMD(...)                                               \
+	{                                                                  \
+		.type = DELAY_CMD, .len = sizeof((char[]){ __VA_ARGS__ }), \
+		.data = (char[])                                           \
+		{                                                          \
+			__VA_ARGS__                                        \
+		}                                                          \
+	}
+
+static const struct panel_init_cmd tdo_panel_tl034wvs03_init[] = {
+	_INIT_DCS_CMD(0xFF, 0x77, 0x01, 0x00, 0x00, 0x13),
+	_INIT_DCS_CMD(0xEF, 0x08),
+	_INIT_DCS_CMD(0xFF, 0x77, 0x01, 0x00, 0x00, 0x10),
+	_INIT_DCS_CMD(0xC0, 0xE9, 0x03),
+	_INIT_DCS_CMD(0xC1, 0x10, 0x0C),
+	_INIT_DCS_CMD(0xC2, 0x01, 0x0A),
+	_INIT_DCS_CMD(0xC3, 0x02),
+	_INIT_DCS_CMD(0xCC, 0x10),
+	_INIT_DCS_CMD(0xCD, 0x08),
+	_INIT_DCS_CMD(0xB0, 0x0D, 0x14, 0x9C, 0x0B, 0x10, 0x06, 0x08, 0x09, 0x08, 0x22, 0x02, 0x4F,
+	0x0E, 0x66, 0x2D, 0x1F),
+	_INIT_DCS_CMD(0xB1, 0x00, 0x17, 0x9E, 0x0F, 0x11, 0x06, 0x0C, 0x08, 0x08, 0x26, 0x04, 0x51,
+	0x10, 0x6A, 0x33, 0x1B),
+	_INIT_DCS_CMD(0xFF, 0x77, 0x01, 0x00, 0x00, 0x11),
+	_INIT_DCS_CMD(0xB0, 0x30),
+	_INIT_DCS_CMD(0xB1, 0x47),
+	_INIT_DCS_CMD(0xB2, 0x84),
+	_INIT_DCS_CMD(0xB3, 0x80),
+	_INIT_DCS_CMD(0xB5, 0x4E),
+	_INIT_DCS_CMD(0xB7, 0x85),
+	_INIT_DCS_CMD(0xB8, 0x20),
+	_INIT_DCS_CMD(0xC1, 0x78),
+	_INIT_DCS_CMD(0xC2, 0x78),
+	_INIT_DCS_CMD(0xD0, 0x88),
+	_INIT_DCS_CMD(0xE0, 0x00, 0x00, 0x02),
+	_INIT_DCS_CMD(0xE1, 0x06, 0xA0, 0x08, 0xA0, 0x05, 0xA0, 0x07, 0xA0, 0x00, 0x44, 0x44),
+	_INIT_DCS_CMD(0xE2, 0x30, 0x30, 0x44, 0x44, 0x6E, 0xA0, 0x00, 0x00, 0x6E, 0xA0, 0x00, 0x00),
+	_INIT_DCS_CMD(0xE3, 0x00, 0x00, 0x33, 0x33),
+	_INIT_DCS_CMD(0xE4, 0x44, 0x44),
+	_INIT_DCS_CMD(0xE5, 0x0D, 0x69, 0x0A, 0xA0, 0x0F, 0x6B, 0x0A, 0xA0, 0x09, 0x65, 0x0A, 0xA0,
+	0x0B, 0x67, 0x0A, 0xA0),
+	_INIT_DCS_CMD(0xE6, 0x00, 0x00, 0x33, 0x33),
+	_INIT_DCS_CMD(0xE7, 0x44, 0x44),
+	_INIT_DCS_CMD(0xE8, 0x0C, 0x68, 0x0A, 0xA0, 0x0E, 0x6A, 0x0A, 0xA0, 0x08, 0x64, 0x0A, 0xA0,
+	0x0A, 0x66, 0x0A, 0xA0),
+	_INIT_DCS_CMD(0xE9, 0x36, 0x10),
+	_INIT_DCS_CMD(0xEB, 0x00, 0x01, 0xE4, 0xE4, 0x44, 0x88, 0x40),
+	_INIT_DCS_CMD(0xED, 0xFF, 0x45, 0x67, 0xFA, 0x01, 0x2B, 0xCF, 0xFF, 0xFF, 0xFC, 0xB2, 0x10,
+	0xAF, 0x76, 0x54, 0xFF),
+	_INIT_DCS_CMD(0xEF, 0x10, 0x0D, 0x04, 0x08, 0x3F, 0x1F),
+	_INIT_DCS_CMD(0x3A, 0x66),
+	_INIT_DCS_CMD(0x11),
+	_INIT_DELAY_CMD(120),
+	_INIT_DCS_CMD(0x29),
+	_INIT_DELAY_CMD(50),
+	{},
+};
+
+static const struct panel_init_cmd tdo_panel_tl040wvs17_init[] = {
+	_INIT_DCS_CMD(0xFF, 0x77, 0x01, 0x00, 0x00, 0x13),
+	_INIT_DCS_CMD(0xEF, 0x08),
+	_INIT_DCS_CMD(0xFF, 0x77, 0x01, 0x00, 0x00, 0x10),
+	_INIT_DCS_CMD(0xC0, 0x3B, 0x00),
+	_INIT_DCS_CMD(0xC1, 0x0E, 0x0C),
+	_INIT_DCS_CMD(0xC2, 0x07, 0x0A),
+	_INIT_DCS_CMD(0xCC, 0x30),
+	_INIT_DCS_CMD(0xB0, 0x40, 0x07, 0x53, 0x0E, 0x12, 0x07, 0x0A, 0x09, 0x09, 0x26, 0x05, 0x10,
+	0x0D, 0x6E, 0x3B, 0xD6),
+	_INIT_DCS_CMD(0xB1, 0x40, 0x17, 0x5C, 0x0D, 0x11, 0x06, 0x08, 0x08, 0x08, 0x22, 0x03, 0x12,
+	0x11, 0x65, 0x28, 0xE8),
+	_INIT_DCS_CMD(0xFF, 0x77, 0x01, 0x00, 0x00, 0x11),
+	_INIT_DCS_CMD(0xB0, 0x4D),
+	_INIT_DCS_CMD(0xB1, 0x4C),
+	_INIT_DCS_CMD(0xB2, 0x81),
+	_INIT_DCS_CMD(0xB3, 0x80),
+	_INIT_DCS_CMD(0xB5, 0x4C),
+	_INIT_DCS_CMD(0xB7, 0x85),
+	_INIT_DCS_CMD(0xB8, 0x33),
+	_INIT_DCS_CMD(0xC1, 0x78),
+	_INIT_DCS_CMD(0xC2, 0x78),
+	_INIT_DCS_CMD(0xD0, 0x88),
+	_INIT_DCS_CMD(0xE0, 0x00, 0x00, 0x02),
+	_INIT_DCS_CMD(0xE1, 0x05, 0x30, 0x00, 0x00, 0x06, 0x30, 0x00, 0x00, 0x0E, 0x30, 0x30),
+	_INIT_DCS_CMD(0xE2, 0x10, 0x10, 0x30, 0x30, 0xF4, 0x00, 0x00, 0x00, 0xF4, 0x00, 0x00, 0x00),
+	_INIT_DCS_CMD(0xE3, 0x00, 0x00, 0x11, 0x11),
+	_INIT_DCS_CMD(0xE4, 0x44, 0x44),
+	_INIT_DCS_CMD(0xE5, 0x0A, 0xF4, 0x30, 0xF0, 0x0C, 0xF6, 0x30, 0xF0, 0x06, 0xF0, 0x30, 0xF0,
+	0x08, 0xF2, 0x30, 0xF0),
+	_INIT_DCS_CMD(0xE6, 0x00, 0x00, 0x11, 0x11),
+	_INIT_DCS_CMD(0xE7, 0x44, 0x44),
+	_INIT_DCS_CMD(0xE8, 0x0B, 0xF5, 0x30, 0xF0, 0x0D, 0xF7, 0x30, 0xF0, 0x07, 0xF1, 0x30, 0xF0,
+	0x09, 0xF3, 0x30, 0xF0),
+	_INIT_DCS_CMD(0xE9, 0x36, 0x01),
+	_INIT_DCS_CMD(0xEB, 0x00, 0x01, 0xE4, 0xE4, 0x44, 0x88, 0x33),
+	_INIT_DCS_CMD(0xED, 0x20, 0xFA, 0xB7, 0x76, 0x65, 0x54, 0x4F, 0xFF, 0xFF, 0xF4, 0x45, 0x56,
+	0x67, 0x7B, 0xAF, 0x02),
+	_INIT_DCS_CMD(0xEF, 0x10, 0x0D, 0x04, 0x08, 0x3F, 0x1F),
+	_INIT_DCS_CMD(0xFF, 0x77, 0x01, 0x00, 0x00, 0x10),
+	_INIT_DCS_CMD(0x11),
+	_INIT_DELAY_CMD(120),
+	_INIT_DCS_CMD(0x29),
+	_INIT_DELAY_CMD(50),
+	{},
+};
+
+static const struct panel_init_cmd tdo_panel_tl040hds31_init[] = {
+	_INIT_DCS_CMD(0xB9, 0xF1, 0x12, 0x83),
+	_INIT_DCS_CMD(0xB1, 0x00, 0x00, 0x00, 0xDA, 0x80),
+	_INIT_DCS_CMD(0xB2, 0x3C, 0x12, 0x30),
+	_INIT_DCS_CMD(0xB3, 0x10, 0x10, 0x28, 0x28, 0x03, 0xFF, 0x00, 0x00, 0x00, 0x00),
+	_INIT_DCS_CMD(0xB4, 0x80),
+	_INIT_DCS_CMD(0xB5, 0x0A, 0x0A),
+	_INIT_DCS_CMD(0xB6, 0x97, 0x97),
+	_INIT_DCS_CMD(0xB8, 0x26, 0x22, 0xF0, 0x63),
+	_INIT_DCS_CMD(0xBA, 0x31, 0x81, 0x05, 0xF9, 0x0E, 0x0E, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x44, 0x25, 0x00, 0x90, 0x0A, 0x00, 0x00, 0x01, 0x4F, 0x01, 0x00, 0x00, 0x37),
+	_INIT_DCS_CMD(0xBC, 0x47),
+	_INIT_DCS_CMD(0xBF, 0x02, 0x11, 0x00),
+	_INIT_DCS_CMD(0xC0, 0x73, 0x73, 0x50, 0x50, 0x00, 0x00, 0x12, 0x70, 0x00),
+	_INIT_DCS_CMD(0xC1, 0x25, 0x00, 0x32, 0x32, 0x77, 0xE4, 0xFF, 0xFF, 0xCC, 0xCC, 0x77, 0x77),
+	_INIT_DCS_CMD(0xC6, 0x82, 0x00, 0xBF, 0xFF, 0x00, 0xFF),
+	_INIT_DCS_CMD(0xC7, 0xB8, 0x00, 0x0A, 0x00, 0x00, 0x00),
+	_INIT_DCS_CMD(0xC8, 0x10, 0x40, 0x1E, 0x02),
+	_INIT_DCS_CMD(0xCC, 0x0B),
+	_INIT_DCS_CMD(0xE0, 0x00, 0x0B, 0x10, 0x2C, 0x3D, 0x3F, 0x42, 0x3A, 0x07, 0x0D, 0x0F, 0x13,
+	0x15, 0x13, 0x14, 0x0F, 0x16, 0x00, 0x0B, 0x10, 0x2C, 0x3D, 0x3F, 0x42, 0x3A, 0x07, 0x0D,
+	0x0F, 0x13, 0x15, 0x13, 0x14, 0x0F, 0x16),
+	_INIT_DCS_CMD(0xE3, 0x07, 0x07, 0x0B, 0x0B, 0x0B, 0x0B, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00,
+	0xC0, 0x10),
+	_INIT_DCS_CMD(0xE9, 0xC8, 0x10, 0x0A, 0x00, 0x00, 0x80, 0x81, 0x12, 0x31, 0x23, 0x4F, 0x86,
+	0xA0, 0x00, 0x47, 0x08, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00,
+	0x00, 0x98, 0x02, 0x8B, 0xAF, 0x46, 0x02, 0x88, 0x88, 0x88, 0x88, 0x88, 0x98, 0x13, 0x8B,
+	0xAF, 0x57, 0x13, 0x88, 0x88, 0x88, 0x88, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00),
+	_INIT_DCS_CMD(0xEA, 0x97, 0x0C, 0x09, 0x09, 0x09, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x9F, 0x31, 0x8B, 0xA8, 0x31, 0x75, 0x88, 0x88, 0x88, 0x88, 0x88, 0x9F, 0x20, 0x8B, 0xA8,
+	0x20, 0x64, 0x88, 0x88, 0x88, 0x88, 0x88, 0x23, 0x00, 0x00, 0x02, 0x71, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x80, 0x81,
+	0x00, 0x00, 0x00, 0x00),
+	_INIT_DCS_CMD(0xEF, 0xFF, 0xFF, 0x01),
+	_INIT_DCS_CMD(0x11),
+	_INIT_DELAY_CMD(250),
+	_INIT_DCS_CMD(0x29),
+	_INIT_DELAY_CMD(50),
+	{},
+};
+
+static inline struct tdo_panel *panel_to_ws(struct drm_panel *panel)
+{
+	return container_of(panel, struct tdo_panel, panel);
+}
+
+static int tdo_panel_init_dcs_cmd(struct tdo_panel *ts)
+{
+	struct mipi_dsi_device *dsi = ts->dsi;
+	struct drm_panel *panel = &ts->panel;
+	int i, err = 0;
+
+	if (ts->desc->init) {
+		const struct panel_init_cmd *init_cmds = ts->desc->init;
+
+		for (i = 0; init_cmds[i].len != 0; i++) {
+			const struct panel_init_cmd *cmd = &init_cmds[i];
+
+			switch (cmd->type) {
+			case DELAY_CMD:
+				msleep(cmd->data[0]);
+				err = 0;
+				break;
+
+			case INIT_DCS_CMD:
+				err = mipi_dsi_dcs_write(
+					dsi, cmd->data[0],
+					cmd->len <= 1 ? NULL : &cmd->data[1],
+					cmd->len - 1);
+				break;
+
+			default:
+				err = -EINVAL;
+			}
+
+			if (err < 0) {
+				dev_err(panel->dev,
+					"failed to write command %u\n", i);
+				return err;
+			}
+		}
+	}
+	return 0;
+}
+
+static int tdo_panel_prepare(struct drm_panel *panel)
+{
+	struct tdo_panel *ctx = panel_to_ws(panel);
+	int ret;
+
+	/* And reset it */
+	if (ctx->reset) {
+		gpiod_set_value_cansleep(ctx->reset, 0);
+		msleep(60);
+		gpiod_set_value_cansleep(ctx->reset, 1);
+		msleep(60);
+	}
+
+	ret = tdo_panel_init_dcs_cmd(ctx);
+	if (ret < 0)
+		dev_err(panel->dev, "failed to init panel: %d\n", ret);
+
+	return 0;
+}
+
+static int tdo_panel_unprepare(struct drm_panel *panel)
+{
+	struct tdo_panel *ctx = panel_to_ws(panel);
+
+	mipi_dsi_dcs_set_display_off(ctx->dsi);
+	mipi_dsi_dcs_enter_sleep_mode(ctx->dsi);
+
+	if (ctx->reset)
+		gpiod_set_value_cansleep(ctx->reset, 0);
+
+	return 0;
+}
+
+static const struct drm_display_mode tdo_panel_tl034wvs03_mode = {
+	.clock = 40000,
+	.hdisplay = 480,
+	.hsync_start = 480 + 220,
+	.hsync_end = 480 + 220 + 20,
+	.htotal = 480 + 220 + 20 + 220,
+	.vdisplay = 480,
+	.vsync_start = 480 + 100,
+	.vsync_end = 480 + 100 + 10,
+	.vtotal = 480 + 100 + 10 + 100,
+	.width_mm = 60,
+	.height_mm = 60,
+};
+
+static const struct drm_display_mode tdo_panel_tl040wvs17_mode = {
+	.clock = 35000,
+	.hdisplay = 480,
+	.hsync_start = 480 + 250,
+	.hsync_end = 480 + 250 + 20,
+	.htotal = 480 + 250 + 20 + 250,
+	.vdisplay = 480,
+	.vsync_start = 480 + 30,
+	.vsync_end = 480 + 30 + 10,
+	.vtotal = 480 + 30 + 10 + 30,
+	.width_mm = 72,
+	.height_mm = 70,
+};
+
+static const struct drm_display_mode tdo_panel_tl040hds31_mode = {
+	.clock = 49500,
+	.hdisplay = 720,
+	.hsync_start = 720 + 140,
+	.hsync_end = 720 + 140 + 80,
+	.htotal = 720 + 140 + 80 + 140,
+	.vdisplay = 720,
+	.vsync_start = 720 + 20,
+	.vsync_end = 720 + 20 + 4,
+	.vtotal = 720 + 20 + 4 + 20,
+	.width_mm = 72,
+	.height_mm = 72,
+};
+
+static int tdo_panel_get_modes(struct drm_panel *panel,
+			      struct drm_connector *connector)
+{
+	struct tdo_panel *ctx = panel_to_ws(panel);
+	struct drm_display_mode *mode;
+
+	mode = drm_mode_duplicate(connector->dev, ctx->desc->mode);
+
+	if (!mode) {
+		dev_err(&ctx->dsi->dev, "failed to add mode %ux%ux@%u\n",
+			ctx->desc->mode->hdisplay, ctx->desc->mode->vdisplay,
+			drm_mode_vrefresh(ctx->desc->mode));
+		return -ENOMEM;
+	}
+
+	drm_mode_set_name(mode);
+
+	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+	drm_mode_probed_add(connector, mode);
+
+	connector->display_info.width_mm = mode->width_mm;
+	connector->display_info.height_mm = mode->height_mm;
+
+	drm_connector_set_panel_orientation(connector, ctx->orientation);
+
+	return 1;
+}
+
+static enum drm_panel_orientation
+tdo_panel_get_orientation(struct drm_panel *panel)
+{
+	struct tdo_panel *ctx = panel_to_ws(panel);
+
+	return ctx->orientation;
+}
+
+static const struct drm_panel_funcs tdo_panel_funcs = {
+	.prepare = tdo_panel_prepare,
+	.unprepare = tdo_panel_unprepare,
+	.get_modes = tdo_panel_get_modes,
+	.get_orientation = tdo_panel_get_orientation,
+};
+
+static int tdo_panel_dsi_probe(struct mipi_dsi_device *dsi)
+{
+	struct tdo_panel *ctx;
+	int ret;
+
+	ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+	mipi_dsi_set_drvdata(dsi, ctx);
+	ctx->dsi = dsi;
+	ctx->desc = of_device_get_match_data(&dsi->dev);
+
+	ctx->panel.prepare_prev_first = true;
+	drm_panel_init(&ctx->panel, &dsi->dev, &tdo_panel_funcs,
+		       DRM_MODE_CONNECTOR_DSI);
+
+	ctx->reset = devm_gpiod_get_optional(&dsi->dev, "reset", GPIOD_OUT_LOW);
+	if (IS_ERR(ctx->reset))
+		return dev_err_probe(&dsi->dev, PTR_ERR(ctx->reset),
+				     "Couldn't get our reset GPIO\n");
+
+	ret = of_drm_get_panel_orientation(dsi->dev.of_node, &ctx->orientation);
+	if (ret) {
+		dev_err(&dsi->dev, "%pOF: failed to get orientation: %d\n",
+			dsi->dev.of_node, ret);
+		return ret;
+	}
+
+	ret = drm_panel_of_backlight(&ctx->panel);
+	if (ret)
+		return ret;
+
+	drm_panel_add(&ctx->panel);
+
+	dsi->mode_flags = ctx->desc->mode_flags;
+	dsi->format = ctx->desc->format;
+	dsi->lanes = ctx->desc->lanes;
+	dev_info(&dsi->dev, "dsi panel: %s,lanes: %d\n",
+	(char *)of_get_property(dsi->dev.of_node, "compatible", NULL), dsi->lanes);
+
+	ret = mipi_dsi_attach(dsi);
+	if (ret)
+		drm_panel_remove(&ctx->panel);
+
+	return ret;
+}
+
+static void tdo_panel_dsi_remove(struct mipi_dsi_device *dsi)
+{
+	struct tdo_panel *ctx = mipi_dsi_get_drvdata(dsi);
+
+	mipi_dsi_detach(dsi);
+	drm_panel_remove(&ctx->panel);
+	if (ctx->reset)
+		gpiod_set_value_cansleep(ctx->reset, 0);
+}
+
+static void tdo_panel_dsi_shutdown(struct mipi_dsi_device *dsi)
+{
+	struct tdo_panel *ctx = mipi_dsi_get_drvdata(dsi);
+
+	if (ctx->reset)
+		gpiod_set_value_cansleep(ctx->reset, 0);
+
+};
+
+static const struct tdo_panel_desc tdo_panel_tl034wvs03_desc = {
+	.init = tdo_panel_tl034wvs03_init,
+	.mode = &tdo_panel_tl034wvs03_mode,
+	.mode_flags = MIPI_DSI_MODE_VIDEO_HSE | MIPI_DSI_MODE_VIDEO |
+	MIPI_DSI_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS,
+	.lanes = 2,
+	.format = MIPI_DSI_FMT_RGB888,
+};
+
+static const struct tdo_panel_desc tdo_panel_tl040wvs17_desc = {
+	.init = tdo_panel_tl040wvs17_init,
+	.mode = &tdo_panel_tl040wvs17_mode,
+	.mode_flags = MIPI_DSI_MODE_VIDEO_HSE | MIPI_DSI_MODE_VIDEO |
+	MIPI_DSI_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS,
+	.lanes = 2,
+	.format = MIPI_DSI_FMT_RGB888,
+};
+
+static const struct tdo_panel_desc tdo_panel_tl040hds31_desc = {
+	.init = tdo_panel_tl040hds31_init,
+	.mode = &tdo_panel_tl040hds31_mode,
+	.mode_flags = MIPI_DSI_MODE_VIDEO_HSE | MIPI_DSI_MODE_VIDEO |
+	MIPI_DSI_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS,
+	.lanes = 2,
+	.format = MIPI_DSI_FMT_RGB888,
+};
+
+static const struct of_device_id tdo_panel_of_match[] = {
+	{ .compatible = "tdo,4.0-dsi-tl034wvs03", &tdo_panel_tl034wvs03_desc },
+	{ .compatible = "tdo,4.0-dsi-tl040wvs17", &tdo_panel_tl040wvs17_desc },
+	{ .compatible = "tdo,4.0-dsi-tl040hds31", &tdo_panel_tl040hds31_desc },
+	{}
+};
+MODULE_DEVICE_TABLE(of, tdo_panel_of_match);
+
+static struct mipi_dsi_driver tdo_panel_dsi_driver = {
+	.probe		= tdo_panel_dsi_probe,
+	.remove		= tdo_panel_dsi_remove,
+	.shutdown	= tdo_panel_dsi_shutdown,
+	.driver = {
+		.name		= "tdo-dsi",
+		.of_match_table	= tdo_panel_of_match,
+	},
+};
+module_mipi_dsi_driver(tdo_panel_dsi_driver);
+
+MODULE_AUTHOR("LK <kun_liu@shtdo.com>");
+MODULE_DESCRIPTION("TDO DSI panel driver");
+MODULE_LICENSE("GPL");

From 2ce4f1ddbe8d73abaec1ac90eb95ddc2390a748c Mon Sep 17 00:00:00 2001
From: kun_liu <kun_liu@shtdo.com>
Date: Thu, 16 Apr 2026 11:16:33 +0800
Subject: [PATCH 2/3] ARM: dts: overlays: add vc4-kms-dsi-tdo-panel

__overrides__ parameter can be add in config.txt for customers.
README describe the dts config info.

Signed-off-by: kun_liu <kun_liu@shtdo.com>
---
 arch/arm/boot/dts/overlays/Makefile           |  1 +
 arch/arm/boot/dts/overlays/README             | 12 ++++
 .../vc4-kms-dsi-tdo-panel-overlay.dts         | 69 +++++++++++++++++++
 3 files changed, 82 insertions(+)
 create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dsi-tdo-panel-overlay.dts

diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile
index 398c8d65de1940..261dfb885a0362 100644
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -343,6 +343,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	vc4-kms-dsi-ili9881-7inch.dtbo \
 	vc4-kms-dsi-lt070me05000.dtbo \
 	vc4-kms-dsi-lt070me05000-v2.dtbo \
+	vc4-kms-dsi-tdo-panel.dtbo \
 	vc4-kms-dsi-waveshare-800x480.dtbo \
 	vc4-kms-dsi-waveshare-panel.dtbo \
 	vc4-kms-dsi-waveshare-panel-v2.dtbo \
diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
index 7ab189972291e7..fd84e0256b6c2b 100644
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -5887,6 +5887,18 @@ Load:   dtoverlay=vc4-kms-dsi-lt070me05000-v2
 Params: <None>
 
 
+Name:   vc4-kms-dsi-tdo-panel
+Info:   Enable the Tdo DSI screen,keep adding.
+        Requires vc4-kms-v3d to be loaded.
+Load:   dtoverlay=vc4-kms-dsi-tdo-panel,<param>=<val>
+Params: tl034wvs03              4.0" 480x480 2lane
+        tl040wvs17              4.0" 480x480 2lane
+        tl040hds31              4.0" 720x720 2lane
+        rotation                Display rotation {0,90,180,270}
+        dsi0                    Use DSI0 and i2c_csi_dsi0 (rather than
+                                the default DSI1 and i2c_csi_dsi).
+
+
 Name:   vc4-kms-dsi-waveshare-800x480
 Info:   Enable the Waveshare 4.3" 800x480 DSI screen.
         It tries to look like the Pi 7" display, but won't accept some of the
diff --git a/arch/arm/boot/dts/overlays/vc4-kms-dsi-tdo-panel-overlay.dts b/arch/arm/boot/dts/overlays/vc4-kms-dsi-tdo-panel-overlay.dts
new file mode 100644
index 00000000000000..a151190af7bf62
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/vc4-kms-dsi-tdo-panel-overlay.dts
@@ -0,0 +1,69 @@
+/*
+ * Device Tree overlay for TDO DSI Touchscreens
+ *
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2835";
+
+	dsi_frag: fragment@0 {
+		target = <&dsi1>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+			port {
+				dsi_out: endpoint {
+					remote-endpoint = <&panel_in>;
+				};
+			};
+
+			panel: panel_dsi1@0 {
+				compatible = "tdo,4.0-dsi-tl040wvs17";
+				status = "okay";
+				reg = <0>;
+				reset-gpios = <&gpio 47 1>;
+				port {
+					panel_in: endpoint {
+						remote-endpoint = <&dsi_out>;
+					};
+				};
+			};
+		};
+	};
+
+	i2c_frag: fragment@1 {
+		target = <&i2c_csi_dsi>;
+		i2cbus: __overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+		};
+	};
+
+	fragment@2 {
+		target = <&i2c0if>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	fragment@3 {
+		target = <&i2c0mux>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	__overrides__ {
+		tl034wvs03 = <&panel>, "compatible=tdo,4.0-dsi-tl034wvs03";
+		tl040wvs17 = <&panel>, "compatible=tdo,4.0-dsi-tl040wvs17";
+		tl040hds31 = <&panel>, "compatible=tdo,4.0-dsi-tl040hds31";
+		rotation = <&panel>, "rotation:0";
+		dsi0 = <&dsi_frag>, "target:0=",<&dsi0>,
+		       <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>;
+	};
+};

From c71f6c86bd57c9cc12374acfc031d0a2ecdff90c Mon Sep 17 00:00:00 2001
From: kun_liu <kun_liu@shtdo.com>
Date: Thu, 16 Apr 2026 11:17:00 +0800
Subject: [PATCH 3/3] ARM/ARM64: defconfig: enable DRM_PANEL_TDO_DSI_V1

Share panel drivers to bcmxxx_defconfig as module to use in all.

Signed-off-by: kun_liu <kun_liu@shtdo.com>
---
 arch/arm/configs/bcm2709_defconfig      | 1 +
 arch/arm/configs/bcmrpi_defconfig       | 1 +
 arch/arm64/configs/bcm2711_defconfig    | 1 +
 arch/arm64/configs/bcm2711_rt_defconfig | 1 +
 arch/arm64/configs/bcm2712_defconfig    | 1 +
 5 files changed, 5 insertions(+)

diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig
index eaf62d36314b96..059182de80ea47 100644
--- a/arch/arm/configs/bcm2709_defconfig
+++ b/arch/arm/configs/bcm2709_defconfig
@@ -983,6 +983,7 @@ CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN=m
 CONFIG_DRM_PANEL_SITRONIX_ST7701=m
 CONFIG_DRM_PANEL_SIMPLE=m
 CONFIG_DRM_PANEL_TPO_Y17P=m
+CONFIG_DRM_PANEL_TDO_DSI_V1=m
 CONFIG_DRM_PANEL_WAVESHARE_TOUCHSCREEN=m
 CONFIG_DRM_PANEL_WAVESHARE_TOUCHSCREEN_V2=m
 CONFIG_DRM_DISPLAY_CONNECTOR=m
diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig
index 12c9f5051eeb71..728216544d6038 100644
--- a/arch/arm/configs/bcmrpi_defconfig
+++ b/arch/arm/configs/bcmrpi_defconfig
@@ -976,6 +976,7 @@ CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN=m
 CONFIG_DRM_PANEL_SITRONIX_ST7701=m
 CONFIG_DRM_PANEL_SIMPLE=m
 CONFIG_DRM_PANEL_TPO_Y17P=m
+CONFIG_DRM_PANEL_TDO_DSI_V1=m
 CONFIG_DRM_PANEL_WAVESHARE_TOUCHSCREEN=m
 CONFIG_DRM_PANEL_WAVESHARE_TOUCHSCREEN_V2=m
 CONFIG_DRM_DISPLAY_CONNECTOR=m
diff --git a/arch/arm64/configs/bcm2711_defconfig b/arch/arm64/configs/bcm2711_defconfig
index f7081ebff6bd2f..3ca12507d0f683 100644
--- a/arch/arm64/configs/bcm2711_defconfig
+++ b/arch/arm64/configs/bcm2711_defconfig
@@ -1081,6 +1081,7 @@ CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN=m
 CONFIG_DRM_PANEL_SITRONIX_ST7701=m
 CONFIG_DRM_PANEL_SIMPLE=m
 CONFIG_DRM_PANEL_TPO_Y17P=m
+CONFIG_DRM_PANEL_TDO_DSI_V1=m
 CONFIG_DRM_PANEL_WAVESHARE_TOUCHSCREEN=m
 CONFIG_DRM_PANEL_WAVESHARE_TOUCHSCREEN_V2=m
 CONFIG_DRM_DISPLAY_CONNECTOR=m
diff --git a/arch/arm64/configs/bcm2711_rt_defconfig b/arch/arm64/configs/bcm2711_rt_defconfig
index c3842d841a445a..a90c06af912be9 100644
--- a/arch/arm64/configs/bcm2711_rt_defconfig
+++ b/arch/arm64/configs/bcm2711_rt_defconfig
@@ -1078,6 +1078,7 @@ CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN=m
 CONFIG_DRM_PANEL_SITRONIX_ST7701=m
 CONFIG_DRM_PANEL_SIMPLE=m
 CONFIG_DRM_PANEL_TPO_Y17P=m
+CONFIG_DRM_PANEL_TDO_DSI_V1=m
 CONFIG_DRM_PANEL_WAVESHARE_TOUCHSCREEN=m
 CONFIG_DRM_PANEL_WAVESHARE_TOUCHSCREEN_V2=m
 CONFIG_DRM_DISPLAY_CONNECTOR=m
diff --git a/arch/arm64/configs/bcm2712_defconfig b/arch/arm64/configs/bcm2712_defconfig
index f873143ea5ffb5..1d27063139c6d6 100644
--- a/arch/arm64/configs/bcm2712_defconfig
+++ b/arch/arm64/configs/bcm2712_defconfig
@@ -1083,6 +1083,7 @@ CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN=m
 CONFIG_DRM_PANEL_SITRONIX_ST7701=m
 CONFIG_DRM_PANEL_SIMPLE=m
 CONFIG_DRM_PANEL_TPO_Y17P=m
+CONFIG_DRM_PANEL_TDO_DSI_V1=m
 CONFIG_DRM_PANEL_WAVESHARE_TOUCHSCREEN=m
 CONFIG_DRM_PANEL_WAVESHARE_TOUCHSCREEN_V2=m
 CONFIG_DRM_DISPLAY_CONNECTOR=m