From 91a759d402b5c17263f82097c647e784f217e2d4 Mon Sep 17 00:00:00 2001
From: Liu Ying <victor.liu@nxp.com>
Date: Fri, 16 Aug 2024 16:50:04 +0800
Subject: [PATCH] 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
---
drivers/gpu/drm/panel/panel-simple.c | 36 ++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 19dba4d5060af..86735430462fa 100644
--- 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,
--
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