drm/panel: simple: Add EDT panel support

EDT ET043080DH6-GP is a 4.3" WQVGA 480x272 RGB LCD panel used on the iWave
Generic SODIMM Development Platform.

Changes in v2:
	-added mandatory .connector_type field
	-changed the .bus_format MEDIA_BUS_FMT_RGB666_1X18

Signed-off-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1580386118-22895-3-git-send-email-marian-cristian.rotariu.rb@bp.renesas.com

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

@@ -1301,6 +1301,37 @@ static const struct panel_desc edt_et035012dm6 = {
 	.bus_flags = DRM_BUS_FLAG_DE_LOW | DRM_BUS_FLAG_PIXDATA_NEGEDGE,
 };
 
+static const struct drm_display_mode edt_etm043080dh6gp_mode = {
+	.clock = 10870,
+	.hdisplay = 480,
+	.hsync_start = 480 + 8,
+	.hsync_end = 480 + 8 + 4,
+	.htotal = 480 + 8 + 4 + 41,
+
+	/*
+	 * IWG22M: Y resolution changed for "dc_linuxfb" module crashing while
+	 * fb_align
+	 */
+
+	.vdisplay = 288,
+	.vsync_start = 288 + 2,
+	.vsync_end = 288 + 2 + 4,
+	.vtotal = 288 + 2 + 4 + 10,
+	.vrefresh = 60,
+};
+
+static const struct panel_desc edt_etm043080dh6gp = {
+	.modes = &edt_etm043080dh6gp_mode,
+	.num_modes = 1,
+	.bpc = 8,
+	.size = {
+		.width = 100,
+		.height = 65,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB666_1X18,
+	.connector_type = DRM_MODE_CONNECTOR_DPI,
+};
+
 static const struct drm_display_mode edt_etm0430g0dh6_mode = {
 	.clock = 9000,
 	.hdisplay = 480,
@@ -3370,6 +3401,9 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "edt,et035012dm6",
 		.data = &edt_et035012dm6,
+	}, {
+		.compatible = "edt,etm043080dh6gp",
+		.data = &edt_etm043080dh6gp,
 	}, {
 		.compatible = "edt,etm0430g0dh6",
 		.data = &edt_etm0430g0dh6,