[PATCH v3 1/7] drm/panel: simple: add support for Ampire AM-800480AYTZQW-00H

From: Jagan Teki
Date: Sun Feb 04 2018 - 12:55:05 EST


This adds support for the Ampire AM-800480AYTZQW-00H 7.0" WGA LCD,
which can be supported by the simple panel driver.

Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
Changes for v3:
- collect Rob reiew tag
Changes for v2:
- Updated binding info about optional properties, node and example

.../display/panel/ampire,am-800480aytzqw-00h.txt | 25 ++++++++++++++++++++
drivers/gpu/drm/panel/panel-simple.c | 27 ++++++++++++++++++++++
2 files changed, 52 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/panel/ampire,am-800480aytzqw-00h.txt

diff --git a/Documentation/devicetree/bindings/display/panel/ampire,am-800480aytzqw-00h.txt b/Documentation/devicetree/bindings/display/panel/ampire,am-800480aytzqw-00h.txt
new file mode 100644
index 0000000..abb5eee
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/ampire,am-800480aytzqw-00h.txt
@@ -0,0 +1,25 @@
+Ampire AM-800480AYTZQW-00H 7.0" WVGA TFT LCD panel
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.
+
+Required properties:
+- compatible: should be "ampire,am-800480aytzqw-00h"
+
+Optional properties:
+- backlight: phandle of the backlight device attached to the panel
+
+Optional nodes:
+- Video port for LVDS panel input.
+
+Example:
+ panel {
+ compatible = "ampire,am-800480aytzqw-00h";
+ backlight = <&backlight_lvds>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&lvds0_out>;
+ };
+ };
+ };
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 5591984..2ecc14b 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -412,6 +412,30 @@ static const struct panel_desc ampire_am_480272h3tmqw_t01h = {
.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
};

+static const struct display_timing ampire_am_800480aytzqw_00h_timing = {
+ .pixelclock = { 27700000, 29200000, 39600000 },
+ .hactive = { 800, 800, 800 },
+ .hfront_porch = { 12, 40, 212 },
+ .hback_porch = { 88, 88, 88 },
+ .hsync_len = { 1, 2, 40 },
+ .vactive = { 480, 480, 480 },
+ .vfront_porch = { 1, 13, 88 },
+ .vback_porch = { 32, 32, 32 },
+ .vsync_len = { 1, 2, 3 },
+ .flags = DISPLAY_FLAGS_DE_HIGH,
+};
+
+static const struct panel_desc ampire_am_800480aytzqw_00h = {
+ .timings = &ampire_am_800480aytzqw_00h_timing,
+ .num_timings = 1,
+ .bpc = 6,
+ .size = {
+ .width = 154,
+ .height = 86,
+ },
+ .bus_format = MEDIA_BUS_FMT_RGB666_1X7X3_SPWG,
+};
+
static const struct drm_display_mode ampire_am800480r3tmqwa1h_mode = {
.clock = 33333,
.hdisplay = 800,
@@ -2028,6 +2052,9 @@ static const struct of_device_id platform_of_match[] = {
.compatible = "ampire,am-480272h3tmqw-t01h",
.data = &ampire_am_480272h3tmqw_t01h,
}, {
+ .compatible = "ampire,am-800480aytzqw-00h",
+ .data = &ampire_am_800480aytzqw_00h,
+ }, {
.compatible = "ampire,am800480r3tmqwa1h",
.data = &ampire_am800480r3tmqwa1h,
}, {
--
2.7.4