From: Jagan Teki <jagan@amarulasolutions.com>
Date: Thu, 7 Jun 2018 19:16:48 +0530
Subject: drm/panel: simple: Add support for Rocktech RK070ER9427 LCD panel
Git-commit: 23167fa9a519c5408c4aa7fd1dc85b7c48b37864
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
This adds support for the Rocktech Display Ltd. RK070ER9427
800(RGB)x480 TFT LCD panel, which can be supported by the
simple panel driver.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180607134648.2902-1-jagan@amarulasolutions.com
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
Documentation/devicetree/bindings/display/panel/rocktech,rk070er9427.txt | 25 +++++++
drivers/gpu/drm/panel/panel-simple.c | 33 ++++++++++
2 files changed, 58 insertions(+)
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/rocktech,rk070er9427.txt
@@ -0,0 +1,25 @@
+Rocktech Display Ltd. RK070ER9427 800(RGB)x480 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 "rocktech,rk070er9427"
+
+Optional properties:
+- backlight: phandle of the backlight device attached to the panel
+
+Optional nodes:
+- Video port for LCD panel input.
+
+Example:
+ panel {
+ compatible = "rocktech,rk070er9427";
+ backlight = <&backlight_lcd>;
+
+ port {
+ lcd_panel_in: endpoint {
+ remote-endpoint = <&lcd_display_out>;
+ };
+ };
+ };
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1747,6 +1747,36 @@ static const struct panel_desc qd43003c0
.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
};
+static const struct display_timing rocktech_rk070er9427_timing = {
+ .pixelclock = { 26400000, 33300000, 46800000 },
+ .hactive = { 800, 800, 800 },
+ .hfront_porch = { 16, 210, 354 },
+ .hback_porch = { 46, 46, 46 },
+ .hsync_len = { 1, 1, 1 },
+ .vactive = { 480, 480, 480 },
+ .vfront_porch = { 7, 22, 147 },
+ .vback_porch = { 23, 23, 23 },
+ .vsync_len = { 1, 1, 1 },
+ .flags = DISPLAY_FLAGS_DE_HIGH,
+};
+
+static const struct panel_desc rocktech_rk070er9427 = {
+ .timings = &rocktech_rk070er9427_timing,
+ .num_timings = 1,
+ .bpc = 6,
+ .size = {
+ .width = 154,
+ .height = 86,
+ },
+ .delay = {
+ .prepare = 41,
+ .enable = 50,
+ .unprepare = 41,
+ .disable = 50,
+ },
+ .bus_format = MEDIA_BUS_FMT_RGB666_1X18,
+};
+
static const struct drm_display_mode samsung_lsn122dl01_c01_mode = {
.clock = 271560,
.hdisplay = 2560,
@@ -2284,6 +2314,9 @@ static const struct of_device_id platfor
.compatible = "qiaodian,qd43003c0-40",
.data = &qd43003c0_40,
}, {
+ .compatible = "rocktech,rk070er9427",
+ .data = &rocktech_rk070er9427,
+ }, {
.compatible = "samsung,lsn122dl01-c01",
.data = &samsung_lsn122dl01_c01,
}, {