drm/panel: simple: Add support for AUO G121EAN01.4 panel

Add timings for the AUO G121EAN01.4 panel.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415172725.84257-4-sebastian.reichel@collabora.com

Documentation/devicetree/bindings/display/panel/panel-simple.yaml

@@ -53,6 +53,8 @@ properties:
       - auo,g101evn010
         # AU Optronics Corporation 10.4" (800x600) color TFT LCD panel
       - auo,g104sn02
+        # AU Optronics Corporation 12.1" (1280x800) TFT LCD panel
+      - auo,g121ean01
         # AU Optronics Corporation 13.3" FHD (1920x1080) TFT LCD panel
       - auo,g133han01
         # AU Optronics Corporation 15.6" (1366x768) TFT LCD panel

drivers/gpu/drm/panel/panel-simple.c

@@ -862,6 +862,31 @@ static const struct panel_desc auo_g104sn02 = {
 	},
 };
 
+static const struct drm_display_mode auo_g121ean01_mode = {
+	.clock = 66700,
+	.hdisplay = 1280,
+	.hsync_start = 1280 + 58,
+	.hsync_end = 1280 + 58 + 8,
+	.htotal = 1280 + 58 + 8 + 70,
+	.vdisplay = 800,
+	.vsync_start = 800 + 6,
+	.vsync_end = 800 + 6 + 4,
+	.vtotal = 800 + 6 + 4 + 10,
+	.vrefresh = 60,
+};
+
+static const struct panel_desc auo_g121ean01 = {
+	.modes = &auo_g121ean01_mode,
+	.num_modes = 1,
+	.bpc = 8,
+	.size = {
+		.width = 261,
+		.height = 163,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
+	.connector_type = DRM_MODE_CONNECTOR_LVDS,
+};
+
 static const struct display_timing auo_g133han01_timings = {
 	.pixelclock = { 134000000, 141200000, 149000000 },
 	.hactive = { 1920, 1920, 1920 },
@@ -3535,6 +3560,9 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "auo,g104sn02",
 		.data = &auo_g104sn02,
+	}, {
+		.compatible = "auo,g121ean01",
+		.data = &auo_g121ean01,
 	}, {
 		.compatible = "auo,g133han01",
 		.data = &auo_g133han01,