[PATCH RFC 18/19] drm/panel: simple: Add support for Toshiba LTA089AC29000 panel

[Boris Brezillon]

Add a new entry for the Toshiba LTA089AC29000 panel.

Signed-off-by: Boris Brezillon <boris.brezillon at collabora.com>
---
 .../display/panel/toshiba,lt089ac29000.txt    |  5 ++-
 drivers/gpu/drm/panel/panel-simple.c          | 36 +++++++++++++++++++
 2 files changed, 40 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/panel/toshiba,lt089ac29000.txt b/Documentation/devicetree/bindings/display/panel/toshiba,lt089ac29000.txt
index 89826116628c..26ebfa098966 100644
--- a/Documentation/devicetree/bindings/display/panel/toshiba,lt089ac29000.txt
+++ b/Documentation/devicetree/bindings/display/panel/toshiba,lt089ac29000.txt
@@ -1,7 +1,10 @@
 Toshiba 8.9" WXGA (1280x768) TFT LCD panel
 
 Required properties:
-- compatible: should be "toshiba,lt089ac29000"
+- compatible: should be one of the following
+	      "toshiba,lt089ac29000"
+	      "toshiba,lta089ac29000"
+
 - power-supply: as specified in the base binding
 
 This binding is compatible with the simple-panel binding, which is specified
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index bff7578f84dd..4c1deed44ce2 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -2857,6 +2857,39 @@ static const struct panel_desc toshiba_lt089ac29000 = {
 	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
 };
 
+static const struct drm_display_mode toshiba_lta089ac29000_mode = {
+	.clock = 79500,
+	.hdisplay = 1280,
+	.hsync_start = 1280 + 192,
+	.hsync_end = 1280 + 192 + 128,
+	.htotal = 1280 + 192 + 128 + 64,
+	.vdisplay = 768,
+	.vsync_start = 768 + 20,
+	.vsync_end = 768 + 20 + 7,
+	.vtotal = 768 + 20 + 7 + 3,
+	.vrefresh = 60,
+};
+
+static const struct panel_desc toshiba_lta089ac29000 = {
+	.modes = &toshiba_lta089ac29000_mode,
+	.num_modes = 1,
+	.size = {
+		.width = 194,
+		.height = 116,
+	},
+	/*
+	 * FIXME:
+	 * The panel supports 2 bus formats: jeida-24 and jeida-18. The
+	 * mode is selected through the 8b6b_SEL pin. If anyone ever needs
+	 * support for jeida-18 we should probably parse the 'data-mapping'
+	 * property.
+	 * In the unlikely event where 8b6b_SEL is connected to a GPIO, we'd
+	 * need a new infra to allow bus format negotiation at the panel level.
+	 */
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA,
+	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
+};
+
 static const struct drm_display_mode tpk_f07a_0102_mode = {
 	.clock = 33260,
 	.hdisplay = 800,
@@ -3305,6 +3338,9 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "toshiba,lt089ac29000",
 		.data = &toshiba_lt089ac29000,
+	}, {
+		.compatible = "toshiba,lta089ac29000",
+		.data = &toshiba_lta089ac29000,
 	}, {
 		.compatible = "tpk,f07a-0102",
 		.data = &tpk_f07a_0102,
-- 
2.21.0