On 10/7/26 22:18, Marc-Olivier Champagne wrote:
The DCLTek dt300248 is an LCD panel using the Sitronix ST7703
controller. Add the panel to the driver.

Suggested-by: Hugo Villeneuve <[email protected]>
Signed-off-by: Marc-Olivier Champagne 
<[email protected]>
---
  drivers/gpu/drm/panel/panel-sitronix-st7703.c | 97 +++++++++++++++++++
  1 file changed, 97 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c 
b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
index f4635a7327de..b3abfe8c9ed9 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
@@ -768,6 +768,102 @@ static const struct st7703_panel_desc 
ayaneo_pocket_ds_lower_desc = {
        .init_sequence = ayaneo_pocket_ds_lower_init_sequence,
  };
+static void dcltek_dt300248_init_sequence(struct mipi_dsi_multi_context *dsi_ctx)
+{
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETEXTC, 0xf1, 0x12, 
0x87);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETDISP, 0xe0, 0x05, 
0xf8);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETRGBIF, 0x10, 0x10, 
0x28,
+                                    0x28, 0x03, 0xff, 0x00, 0x00, 0x00, 0x00);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETCYC, 0x80);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETBGP, 0x0d, 0x0b);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETVCOM, 0x6d, 0x6d);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETPOWER_EXT, 0x25, 
0x62,
+                                    0x20, 0x03);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETMIPI,
+                                    0x33, 0x81, 0x05, 0xf9, 0x0e, 0x0e, 0x20, 
0x00,
+                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x44, 
0x25,
+                                    0x00, 0x91, 0x0a, 0x00, 0x00, 0x01, 0x4f, 
0x01,
+                                    0x00, 0x00, 0x37);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETVDC, 0x47);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_UNKNOWN_BF,
+                                    0x02, 0x10, 0x00, 0x80, 0x04);
+
+       mipi_dsi_msleep(dsi_ctx, 20);
+
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETSCR,
+                                    0x73, 0x73, 0x50, 0x50, 0xa0, 0x00, 0x12, 
0x53,
+                                    0x00);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETPOWER,
+                                    0x25, 0x00, 0x32, 0x32, 0x77, 0xe4, 0x77, 
0x77,
+                                    0xcc, 0xcc, 0xff, 0xff, 0x11, 0x11, 0x00, 
0x00,
+                                    0x32);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETIO,
+                                    0x10, 0x00, 0x0a, 0x00, 0x00, 0x00, 0x00, 
0x00,
+                                    0xed, 0xc5, 0x00, 0xa5);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETCABC,
+                                    0x10, 0x40, 0x1e, 0x03);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETPANEL, 0x07);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETGAMMA,
+                                    0x00, 0x13, 0x1a, 0x2c, 0x34, 0x3f, 0x4f, 
0x3f,
+                                    0x06, 0x0c, 0x0d, 0x14, 0x15, 0x13, 0x13, 
0x11,
+                                    0x19, 0x00, 0x13, 0x1a, 0x2c, 0x34, 0x3f, 
0x4f,
+                                    0x3f, 0x06, 0x0c, 0x0d, 0x14, 0x15, 0x13, 
0x13,
+                                    0x11, 0x19);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_UNKNOWN_E1,
+                                    0x11, 0x11, 0x91, 0x00, 0x00, 0x00, 0x00);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETEQ,
+                                    0x07, 0x07, 0x0b, 0x0b, 0x0b, 0x0b, 0x00, 
0x00,
+                                    0x00, 0x00, 0x2f, 0x04, 0xc0, 0x10);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETGIP1,
+                                    0xc8, 0x10, 0x0a, 0x10, 0x0e, 0x80, 0x38, 
0x12,
+                                    0x31, 0x23, 0x4f, 0x86, 0x80, 0x38, 0x47, 
0x08,
+                                    0x00, 0x0c, 0x04, 0x00, 0x00, 0x00, 0x00, 
0x0c,
+                                    0x04, 0x00, 0x00, 0x00, 0x8f, 0x44, 0x60, 
0x28,
+                                    0xba, 0x02, 0x88, 0x88, 0x88, 0x88, 0x88, 
0x8f,
+                                    0x45, 0x71, 0x38, 0xba, 0x13, 0x88, 0x88, 
0x88,
+                                    0x88, 0x88, 0x00, 0x00, 0x00, 0x01, 0x00, 
0x80,
+                                    0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_SETGIP2,
+                                    0x96, 0x18, 0x00, 0x00, 0x00, 0xb4, 0x01, 
0x0b,
+                                    0x41, 0x01, 0x02, 0x00, 0xf8, 0x43, 0x17, 
0x58,
+                                    0xba, 0x31, 0x88, 0x88, 0x88, 0x88, 0x88, 
0xf8,
+                                    0x42, 0x06, 0x48, 0xba, 0x20, 0x88, 0x88, 
0x88,
+                                    0x88, 0x88, 0x23, 0x00, 0x00, 0x00, 0xd7, 
0x00,
+                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
0x00,
+                                    0x00, 0x00, 0x07, 0x8b, 0x00, 0x00, 0x40, 
0x80,
+                                    0x81, 0x40, 0x80, 0x81, 0x00);
+       mipi_dsi_dcs_write_seq_multi(dsi_ctx, ST7703_CMD_UNKNOWN_EF,
+                                    0xff, 0xff, 0x01);
+}
+
+static const struct drm_display_mode dcltek_dt300248_mode = {
+       .clock          = (440 + 8 + 32 + 40) * (1920 + 41 + 8 + 6) * 60 / 1000,
+
+       .hdisplay       = 440,
+       .hsync_start    = 440 + 8,
+       .hsync_end      = 440 + 8 + 32,
+       .htotal         = 440 + 8 + 32 + 40,
+
+       .vdisplay       = 1920,
+       .vsync_start    = 1920 + 41,
+       .vsync_end      = 1920 + 41 + 8,
+       .vtotal         = 1920 + 41 + 8 + 6,
+
+       .width_mm       = 58,
+       .height_mm      = 253,
+       .flags          = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+};
+
+static const struct st7703_panel_desc dcltek_dt300248_desc = {
+       .mode = &dcltek_dt300248_mode,
+       .lanes = 4,
+       .mode_flags = MIPI_DSI_MODE_VIDEO |
+               MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+               MIPI_DSI_MODE_LPM,
+       .format = MIPI_DSI_FMT_RGB888,
+       .init_sequence = dcltek_dt300248_init_sequence,
+};
+
  static int st7703_enable(struct drm_panel *panel)
  {
        struct st7703 *ctx = panel_to_st7703(panel);
@@ -1026,6 +1122,7 @@ static void st7703_remove(struct mipi_dsi_device *dsi)
  static const struct of_device_id st7703_of_match[] = {
        { .compatible = "anbernic,rg353v-panel-v2", .data = &rg353v2_desc },
        { .compatible = "ayaneo,pocket-ds-lower-panel", .data = 
&ayaneo_pocket_ds_lower_desc },
+       { .compatible = "dcltek,dt300248", .data = &dcltek_dt300248_desc },
        { .compatible = "gameforce,chi-panel", .data = &gameforcechi_desc },
        { .compatible = "powkiddy,rgb10max3-panel", .data = 
&rgb10max3_panel_desc },
        { .compatible = "powkiddy,rgb30-panel", .data = &rgb30panel_desc },

Reviewed-by: Neil Armstrong <[email protected]>

Thanks,
Neil

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