drm/panel: simple: Add ON Tat Industrial Company KD50G21-40NT-A1 panel

ON Tat Industrial Company KD50G21-40NT-A1 is a 5" WVGA LCD panel with DPI
interface.

The LCD module specification can be found at:
https://cdn-shop.adafruit.com/datasheets/KD50G21-40NT-A1.pdf

Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240816085004.491494-3-victor.liu@nxp.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240816085004.491494-3-victor.liu@nxp.com

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 19dba4d..8673543 100644 (file)
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -3518,6 +3518,39 @@ static const struct panel_desc olimex_lcd_olinuxino_43ts = {
        .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
 };
 
+static const struct display_timing ontat_kd50g21_40nt_a1_timing = {
+       .pixelclock = { 30000000, 30000000, 50000000 },
+       .hactive = { 800, 800, 800 },
+       .hfront_porch = { 1, 40, 255 },
+       .hback_porch = { 1, 40, 87 },
+       .hsync_len = { 1, 48, 87 },
+       .vactive = { 480, 480, 480 },
+       .vfront_porch = { 1, 13, 255 },
+       .vback_porch = { 1, 29, 29 },
+       .vsync_len = { 3, 3, 31 },
+       .flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
+                DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE,
+};
+
+static const struct panel_desc ontat_kd50g21_40nt_a1 = {
+       .timings = &ontat_kd50g21_40nt_a1_timing,
+       .num_timings = 1,
+       .bpc = 8,
+       .size = {
+               .width = 108,
+               .height = 65,
+       },
+       .delay = {
+               .prepare = 147,         /* 5 VSDs */
+               .enable = 147,          /* 5 VSDs */
+               .disable = 88,          /* 3 VSDs */
+               .unprepare = 117,       /* 4 VSDs */
+       },
+       .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+       .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE,
+       .connector_type = DRM_MODE_CONNECTOR_DPI,
+};
+
 /*
  * 800x480 CVT. The panel appears to be quite accepting, at least as far as
  * pixel clocks, but this is the timing that was being used in the Adafruit
@@ -4880,6 +4913,9 @@ static const struct of_device_id platform_of_match[] = {
        }, {
                .compatible = "olimex,lcd-olinuxino-43-ts",
                .data = &olimex_lcd_olinuxino_43ts,
+       }, {
+               .compatible = "ontat,kd50g21-40nt-a1",
+               .data = &ontat_kd50g21_40nt_a1,
        }, {
                .compatible = "ontat,yx700wv03",
                .data = &ontat_yx700wv03,