From dd5315cfa3267320577c92d0e6115345677f931f Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Thu, 24 Mar 2016 17:23:48 -0700
Subject: [PATCH] drm/panel: simple: Add the 7" DPI panel from Adafruit

This is a basic TFT panel with a 40-pin FPC connector on it.  The
specification doesn't define timings, but the Adafruit instructions
were setting up 800x480 CVT.

v2: Add .bus_format and vsync/hsync flags.

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
[treding@nvidia.com: keep entries properly sorted]
Signed-off-by: Thierry Reding <treding@nvidia.com>

(cherry picked from commit 8070fdbd024727c752f815b18e5339c681a01bbe)
---
 .../bindings/display/panel/ontat,yx700wv03.txt     |  7 ++++
 drivers/gpu/drm/panel/panel-simple.c               | 37 ++++++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/ontat,yx700wv03.txt

--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/ontat,yx700wv03.txt
@@ -0,0 +1,7 @@
+On Tat Industrial Company 7" DPI TFT panel.
+
+Required properties:
+- compatible: should be "ontat,yx700wv03"
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1005,6 +1005,40 @@ static const struct panel_desc okaya_rs8
 	.bus_format = MEDIA_BUS_FMT_RGB666_1X18,
 };
 
+/*
+ * 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
+ * installation instructions.
+ */
+static const struct drm_display_mode ontat_yx700wv03_mode = {
+	.clock = 29500,
+	.hdisplay = 800,
+	.hsync_start = 824,
+	.hsync_end = 896,
+	.htotal = 992,
+	.vdisplay = 480,
+	.vsync_start = 483,
+	.vsync_end = 493,
+	.vtotal = 500,
+	.vrefresh = 60,
+	.flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
+};
+
+/*
+ * Specification at:
+ * https://www.adafruit.com/images/product-files/2406/c3163.pdf
+ */
+static const struct panel_desc ontat_yx700wv03 = {
+	.modes = &ontat_yx700wv03_mode,
+	.num_modes = 1,
+	.bpc = 8,
+	.size = {
+		.width = 154,
+		.height = 83,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+};
+
 static const struct drm_display_mode ortustech_com43h4m85ulc_mode  = {
 	.clock = 25000,
 	.hdisplay = 480,
@@ -1181,6 +1215,9 @@ static const struct of_device_id platfor
 		.compatible = "okaya,rs800480t-7x0gp",
 		.data = &okaya_rs800480t_7x0gp,
 	}, {
+		.compatible = "ontat,yx700wv03",
+		.data = &ontat_yx700wv03,
+	}, {
 		.compatible = "ortustech,com43h4m85ulc",
 		.data = &ortustech_com43h4m85ulc,
 	}, {
