The DCLTek dt300249 is an LCD panel using the Ilitek ILI9881C 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-ilitek-ili9881c.c | 216 ++++++++++++++++++
 1 file changed, 216 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c 
b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
index 7bf38e96678a..acc560dc5ea5 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
@@ -2198,6 +2198,195 @@ static const struct ili9881c_instr 
waveshare_7inch_a_init[] = {
        ILI9881C_COMMAND_INSTR(0x36, 0x00),
 };
 
+static const struct ili9881c_instr dt300249_init[] = {
+       ILI9881C_SWITCH_PAGE_INSTR(3),
+       ILI9881C_COMMAND_INSTR(0x01, 0x00),
+       ILI9881C_COMMAND_INSTR(0x02, 0x00),
+       ILI9881C_COMMAND_INSTR(0x03, 0x72),
+       ILI9881C_COMMAND_INSTR(0x04, 0x00),
+       ILI9881C_COMMAND_INSTR(0x05, 0x00),
+       ILI9881C_COMMAND_INSTR(0x06, 0x09),
+       ILI9881C_COMMAND_INSTR(0x07, 0x00),
+       ILI9881C_COMMAND_INSTR(0x08, 0x00),
+       ILI9881C_COMMAND_INSTR(0x09, 0x01),
+       ILI9881C_COMMAND_INSTR(0x0a, 0x00),
+       ILI9881C_COMMAND_INSTR(0x0b, 0x00),
+       ILI9881C_COMMAND_INSTR(0x0c, 0x01),
+       ILI9881C_COMMAND_INSTR(0x0d, 0x00),
+       ILI9881C_COMMAND_INSTR(0x0e, 0x00),
+       ILI9881C_COMMAND_INSTR(0x0f, 0x00),
+       ILI9881C_COMMAND_INSTR(0x10, 0x00),
+       ILI9881C_COMMAND_INSTR(0x11, 0x00),
+       ILI9881C_COMMAND_INSTR(0x12, 0x00),
+       ILI9881C_COMMAND_INSTR(0x13, 0x00),
+       ILI9881C_COMMAND_INSTR(0x14, 0x00),
+       ILI9881C_COMMAND_INSTR(0x15, 0x00),
+       ILI9881C_COMMAND_INSTR(0x16, 0x00),
+       ILI9881C_COMMAND_INSTR(0x17, 0x00),
+       ILI9881C_COMMAND_INSTR(0x18, 0x00),
+       ILI9881C_COMMAND_INSTR(0x19, 0x00),
+       ILI9881C_COMMAND_INSTR(0x1a, 0x00),
+       ILI9881C_COMMAND_INSTR(0x1b, 0x00),
+       ILI9881C_COMMAND_INSTR(0x1c, 0x00),
+       ILI9881C_COMMAND_INSTR(0x1d, 0x00),
+       ILI9881C_COMMAND_INSTR(0x1e, 0x40),
+       ILI9881C_COMMAND_INSTR(0x1f, 0x80),
+       ILI9881C_COMMAND_INSTR(0x20, 0x05),
+       ILI9881C_COMMAND_INSTR(0x21, 0x02),
+       ILI9881C_COMMAND_INSTR(0x22, 0x00),
+       ILI9881C_COMMAND_INSTR(0x23, 0x00),
+       ILI9881C_COMMAND_INSTR(0x24, 0x00),
+       ILI9881C_COMMAND_INSTR(0x25, 0x00),
+       ILI9881C_COMMAND_INSTR(0x26, 0x00),
+       ILI9881C_COMMAND_INSTR(0x27, 0x00),
+       ILI9881C_COMMAND_INSTR(0x28, 0x33),
+       ILI9881C_COMMAND_INSTR(0x29, 0x02),
+       ILI9881C_COMMAND_INSTR(0x2a, 0x00),
+       ILI9881C_COMMAND_INSTR(0x2b, 0x00),
+       ILI9881C_COMMAND_INSTR(0x2c, 0x00),
+       ILI9881C_COMMAND_INSTR(0x2d, 0x00),
+       ILI9881C_COMMAND_INSTR(0x2e, 0x00),
+       ILI9881C_COMMAND_INSTR(0x2f, 0x00),
+       ILI9881C_COMMAND_INSTR(0x30, 0x00),
+       ILI9881C_COMMAND_INSTR(0x31, 0x00),
+       ILI9881C_COMMAND_INSTR(0x32, 0x00),
+       ILI9881C_COMMAND_INSTR(0x33, 0x00),
+       ILI9881C_COMMAND_INSTR(0x34, 0x04),
+       ILI9881C_COMMAND_INSTR(0x35, 0x00),
+       ILI9881C_COMMAND_INSTR(0x36, 0x2a),
+       ILI9881C_COMMAND_INSTR(0x37, 0x00),
+       ILI9881C_COMMAND_INSTR(0x38, 0x3c),
+       ILI9881C_COMMAND_INSTR(0x39, 0x00),
+       ILI9881C_COMMAND_INSTR(0x3a, 0x40),
+       ILI9881C_COMMAND_INSTR(0x3b, 0x40),
+       ILI9881C_COMMAND_INSTR(0x3c, 0x00),
+       ILI9881C_COMMAND_INSTR(0x3d, 0x00),
+       ILI9881C_COMMAND_INSTR(0x3e, 0x00),
+       ILI9881C_COMMAND_INSTR(0x3f, 0x00),
+       ILI9881C_COMMAND_INSTR(0x40, 0x00),
+       ILI9881C_COMMAND_INSTR(0x41, 0x00),
+       ILI9881C_COMMAND_INSTR(0x42, 0x00),
+       ILI9881C_COMMAND_INSTR(0x43, 0x00),
+       ILI9881C_COMMAND_INSTR(0x44, 0x00),
+       ILI9881C_COMMAND_INSTR(0x50, 0x01),
+       ILI9881C_COMMAND_INSTR(0x51, 0x23),
+       ILI9881C_COMMAND_INSTR(0x52, 0x45),
+       ILI9881C_COMMAND_INSTR(0x53, 0x67),
+       ILI9881C_COMMAND_INSTR(0x54, 0x89),
+       ILI9881C_COMMAND_INSTR(0x55, 0xab),
+       ILI9881C_COMMAND_INSTR(0x56, 0x01),
+       ILI9881C_COMMAND_INSTR(0x57, 0x23),
+       ILI9881C_COMMAND_INSTR(0x58, 0x45),
+       ILI9881C_COMMAND_INSTR(0x59, 0x67),
+       ILI9881C_COMMAND_INSTR(0x5a, 0x89),
+       ILI9881C_COMMAND_INSTR(0x5b, 0xab),
+       ILI9881C_COMMAND_INSTR(0x5c, 0xcd),
+       ILI9881C_COMMAND_INSTR(0x5d, 0xef),
+       ILI9881C_COMMAND_INSTR(0x5e, 0x11),
+       ILI9881C_COMMAND_INSTR(0x5f, 0x01),
+       ILI9881C_COMMAND_INSTR(0x60, 0x00),
+       ILI9881C_COMMAND_INSTR(0x61, 0x15),
+       ILI9881C_COMMAND_INSTR(0x62, 0x14),
+       ILI9881C_COMMAND_INSTR(0x63, 0x0e),
+       ILI9881C_COMMAND_INSTR(0x64, 0x0f),
+       ILI9881C_COMMAND_INSTR(0x65, 0x0c),
+       ILI9881C_COMMAND_INSTR(0x66, 0x0d),
+       ILI9881C_COMMAND_INSTR(0x67, 0x06),
+       ILI9881C_COMMAND_INSTR(0x68, 0x02),
+       ILI9881C_COMMAND_INSTR(0x69, 0x02),
+       ILI9881C_COMMAND_INSTR(0x6a, 0x02),
+       ILI9881C_COMMAND_INSTR(0x6b, 0x02),
+       ILI9881C_COMMAND_INSTR(0x6c, 0x02),
+       ILI9881C_COMMAND_INSTR(0x6d, 0x02),
+       ILI9881C_COMMAND_INSTR(0x6e, 0x07),
+       ILI9881C_COMMAND_INSTR(0x6f, 0x02),
+       ILI9881C_COMMAND_INSTR(0x70, 0x02),
+       ILI9881C_COMMAND_INSTR(0x71, 0x02),
+       ILI9881C_COMMAND_INSTR(0x72, 0x02),
+       ILI9881C_COMMAND_INSTR(0x73, 0x02),
+       ILI9881C_COMMAND_INSTR(0x74, 0x02),
+       ILI9881C_COMMAND_INSTR(0x75, 0x01),
+       ILI9881C_COMMAND_INSTR(0x76, 0x00),
+       ILI9881C_COMMAND_INSTR(0x77, 0x14),
+       ILI9881C_COMMAND_INSTR(0x78, 0x15),
+       ILI9881C_COMMAND_INSTR(0x79, 0x0e),
+       ILI9881C_COMMAND_INSTR(0x7a, 0x0f),
+       ILI9881C_COMMAND_INSTR(0x7b, 0x0c),
+       ILI9881C_COMMAND_INSTR(0x7c, 0x0d),
+       ILI9881C_COMMAND_INSTR(0x7d, 0x06),
+       ILI9881C_COMMAND_INSTR(0x7e, 0x02),
+       ILI9881C_COMMAND_INSTR(0x7f, 0x02),
+       ILI9881C_COMMAND_INSTR(0x80, 0x02),
+       ILI9881C_COMMAND_INSTR(0x81, 0x02),
+       ILI9881C_COMMAND_INSTR(0x82, 0x02),
+       ILI9881C_COMMAND_INSTR(0x83, 0x02),
+       ILI9881C_COMMAND_INSTR(0x84, 0x07),
+       ILI9881C_COMMAND_INSTR(0x85, 0x02),
+       ILI9881C_COMMAND_INSTR(0x86, 0x02),
+       ILI9881C_COMMAND_INSTR(0x87, 0x02),
+       ILI9881C_COMMAND_INSTR(0x88, 0x02),
+       ILI9881C_COMMAND_INSTR(0x89, 0x02),
+       ILI9881C_COMMAND_INSTR(0x8a, 0x02),
+       ILI9881C_SWITCH_PAGE_INSTR(4),
+       ILI9881C_COMMAND_INSTR(0x6c, 0x15),
+       ILI9881C_COMMAND_INSTR(0x6e, 0x2a),
+       ILI9881C_COMMAND_INSTR(0x6f, 0x33),
+       ILI9881C_COMMAND_INSTR(0x3a, 0x94),
+       ILI9881C_COMMAND_INSTR(0x8d, 0x1a),
+       ILI9881C_COMMAND_INSTR(0x87, 0xba),
+       ILI9881C_COMMAND_INSTR(0x26, 0x76),
+       ILI9881C_COMMAND_INSTR(0xb2, 0xd1),
+       ILI9881C_COMMAND_INSTR(0xb5, 0x06),
+       ILI9881C_SWITCH_PAGE_INSTR(1),
+       ILI9881C_COMMAND_INSTR(0x22, 0x0a),
+       ILI9881C_COMMAND_INSTR(0x31, 0x00),
+       ILI9881C_COMMAND_INSTR(0x53, 0x84),
+       ILI9881C_COMMAND_INSTR(0x55, 0x8f),
+       ILI9881C_COMMAND_INSTR(0x50, 0xae),
+       ILI9881C_COMMAND_INSTR(0x51, 0xae),
+       ILI9881C_COMMAND_INSTR(0x60, 0x28),
+       ILI9881C_COMMAND_INSTR(0xa0, 0x0f),
+       ILI9881C_COMMAND_INSTR(0xa1, 0x1b),
+       ILI9881C_COMMAND_INSTR(0xa2, 0x28),
+       ILI9881C_COMMAND_INSTR(0xa3, 0x12),
+       ILI9881C_COMMAND_INSTR(0xa4, 0x15),
+       ILI9881C_COMMAND_INSTR(0xa5, 0x28),
+       ILI9881C_COMMAND_INSTR(0xa6, 0x1b),
+       ILI9881C_COMMAND_INSTR(0xa7, 0x1e),
+       ILI9881C_COMMAND_INSTR(0xa8, 0x79),
+       ILI9881C_COMMAND_INSTR(0xa9, 0x1b),
+       ILI9881C_COMMAND_INSTR(0xaa, 0x27),
+       ILI9881C_COMMAND_INSTR(0xab, 0x69),
+       ILI9881C_COMMAND_INSTR(0xac, 0x19),
+       ILI9881C_COMMAND_INSTR(0xad, 0x18),
+       ILI9881C_COMMAND_INSTR(0xae, 0x4c),
+       ILI9881C_COMMAND_INSTR(0xaf, 0x21),
+       ILI9881C_COMMAND_INSTR(0xb0, 0x28),
+       ILI9881C_COMMAND_INSTR(0xb1, 0x52),
+       ILI9881C_COMMAND_INSTR(0xb2, 0x65),
+       ILI9881C_COMMAND_INSTR(0xb3, 0x3f),
+       ILI9881C_COMMAND_INSTR(0xc0, 0x04),
+       ILI9881C_COMMAND_INSTR(0xc1, 0x1b),
+       ILI9881C_COMMAND_INSTR(0xc2, 0x27),
+       ILI9881C_COMMAND_INSTR(0xc3, 0x13),
+       ILI9881C_COMMAND_INSTR(0xc4, 0x15),
+       ILI9881C_COMMAND_INSTR(0xc5, 0x28),
+       ILI9881C_COMMAND_INSTR(0xc6, 0x1c),
+       ILI9881C_COMMAND_INSTR(0xc7, 0x1e),
+       ILI9881C_COMMAND_INSTR(0xc8, 0x79),
+       ILI9881C_COMMAND_INSTR(0xc9, 0x1a),
+       ILI9881C_COMMAND_INSTR(0xca, 0x27),
+       ILI9881C_COMMAND_INSTR(0xcb, 0x69),
+       ILI9881C_COMMAND_INSTR(0xcc, 0x1a),
+       ILI9881C_COMMAND_INSTR(0xcd, 0x18),
+       ILI9881C_COMMAND_INSTR(0xce, 0x4c),
+       ILI9881C_COMMAND_INSTR(0xcf, 0x21),
+       ILI9881C_COMMAND_INSTR(0xd0, 0x27),
+       ILI9881C_COMMAND_INSTR(0xd1, 0x52),
+       ILI9881C_COMMAND_INSTR(0xd2, 0x65),
+       ILI9881C_COMMAND_INSTR(0xd3, 0x3f),
+};
+
 static inline struct ili9881c *panel_to_ili9881c(struct drm_panel *panel)
 {
        return container_of(panel, struct ili9881c, panel);
@@ -2493,6 +2682,23 @@ static const struct drm_display_mode 
waveshare_7inch_a_mode = {
        .height_mm      = 154,
 };
 
+static const struct drm_display_mode dt300249_default_mode = {
+       .clock          = 62000,
+
+       .hdisplay       = 720,
+       .hsync_start    = 720 + 10,     /* HFP = 10 */
+       .hsync_end      = 720 + 10 + 20,        /* HSYNC = 20 */
+       .htotal         = 720 + 10 + 20 + 20,   /* HBP = 20, htotal = 770 */
+
+       .vdisplay       = 1280,
+       .vsync_start    = 1280 + 10,    /* VFP = 10 */
+       .vsync_end      = 1280 + 10 + 10,       /* VSYNC = 10 */
+       .vtotal         = 1280 + 10 + 10 + 20,  /* VBP = 20, vtotal = 1320 */
+
+       .width_mm       = 68,
+       .height_mm      = 121,
+};
+
 static int ili9881c_get_modes(struct drm_panel *panel,
                              struct drm_connector *connector)
 {
@@ -2698,9 +2904,19 @@ static const struct ili9881c_desc waveshare_7inch_a_desc 
= {
        .lanes = 2,
 };
 
+static const struct ili9881c_desc dt300249_desc = {
+       .init = dt300249_init,
+       .init_length = ARRAY_SIZE(dt300249_init),
+       .mode = &dt300249_default_mode,
+       .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+                     MIPI_DSI_MODE_LPM,
+       .lanes = 4,
+};
+
 static const struct of_device_id ili9881c_of_match[] = {
        { .compatible = "bananapi,lhr050h41", .data = &lhr050h41_desc },
        { .compatible = "bestar,bsd1218-a101kl68", .data = 
&bsd1218_a101kl68_desc },
+       { .compatible = "dcltek,dt300249", .data = &dt300249_desc },
        { .compatible = "feixin,k101-im2byl02", .data = &k101_im2byl02_desc },
        { .compatible = "startek,kd050hdfia020", .data = &kd050hdfia020_desc },
        { .compatible = "tdo,tl050hdv35", .data = &tl050hdv35_desc },
-- 
2.34.1

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