drm/panel: simple: Add Sharp LQ070Y3DG3B panel support

The change adds support for the Sharp LQ070Y3DG3B 7.0" TFT LCD panel.

Tested on Letux7004.
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/d16aaa1ac93e4f15c13cd7d621de95836257676a.1559905870.git.hns@goldelico.com

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

@@ -2379,6 +2379,33 @@ static const struct panel_desc samsung_ltn140at29_301 = {
 	},
 };
 
+static const struct drm_display_mode sharp_lq070y3dg3b_mode = {
+	.clock = 33260,
+	.hdisplay = 800,
+	.hsync_start = 800 + 64,
+	.hsync_end = 800 + 64 + 128,
+	.htotal = 800 + 64 + 128 + 64,
+	.vdisplay = 480,
+	.vsync_start = 480 + 8,
+	.vsync_end = 480 + 8 + 2,
+	.vtotal = 480 + 8 + 2 + 35,
+	.vrefresh = 60,
+	.flags = DISPLAY_FLAGS_PIXDATA_POSEDGE,
+};
+
+static const struct panel_desc sharp_lq070y3dg3b = {
+	.modes = &sharp_lq070y3dg3b_mode,
+	.num_modes = 1,
+	.bpc = 8,
+	.size = {
+		.width = 152,	/* 152.4mm */
+		.height = 91,	/* 91.4mm */
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_POSEDGE |
+		     DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE,
+};
+
 static const struct drm_display_mode sharp_lq035q7db03_mode = {
 	.clock = 5500,
 	.hdisplay = 240,
@@ -3033,6 +3060,9 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "sharp,lq035q7db03",
 		.data = &sharp_lq035q7db03,
+	}, {
+		.compatible = "sharp,lq070y3dg3b",
+		.data = &sharp_lq070y3dg3b,
 	}, {
 		.compatible = "sharp,lq101k1ly04",
 		.data = &sharp_lq101k1ly04,