drm/panel: simple: Add Tianma TM070RVHG71 panel support

The Tianma TM070RVHG71 is a 7" WVGA (800x480) TFT LCD panel connected
via LVDS and can be supported by the simple-panel binding.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171107153058.5554-1-lukma@denx.de

diff --git a/Documentation/devicetree/bindings/display/panel/tianma,tm070rvhg71.txt b/Documentation/devicetree/bindings/display/panel/tianma,tm070rvhg71.txt
new file mode 100644 (file)
index 0000000..b25261e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/tianma,tm070rvhg71.txt
@@ -0,0 +1,29 @@
+Tianma Micro-electronics TM070RVHG71 7.0" WXGA TFT LCD panel
+
+Required properties:
+- compatible: should be "tianma,tm070rvhg71"
+- power-supply: single regulator to provide the supply voltage
+- backlight: phandle of the backlight device attached to the panel
+
+Required nodes:
+- port: LVDS port mapping to connect this display
+
+This panel needs single power supply voltage. Its backlight is conntrolled
+via PWM signal.
+
+Example:
+--------
+
+Example device-tree definition when connected to iMX6Q based board
+
+       panel: panel-lvds0 {
+               compatible = "tianma,tm070rvhg71";
+               backlight = <&backlight_lvds>;
+               power-supply = <&reg_lvds>;
+
+               port {
+                       panel_in_lvds0: endpoint {
+                               remote-endpoint = <&lvds0_out>;
+                       };
+               };
+       };

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index b7c4709f7b34c81c16f46326f3d61b58492ed7a5..71d8f0e5e664fb82d06244f75e6538e3594062c4 100644 (file)
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1837,6 +1837,30 @@ static const struct panel_desc tianma_tm070jdhg30 = {
        .bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
 };
 
+static const struct display_timing tianma_tm070rvhg71_timing = {
+       .pixelclock = { 27700000, 29200000, 39600000 },
+       .hactive = { 800, 800, 800 },
+       .hfront_porch = { 12, 40, 212 },
+       .hback_porch = { 88, 88, 88 },
+       .hsync_len = { 1, 1, 40 },
+       .vactive = { 480, 480, 480 },
+       .vfront_porch = { 1, 13, 88 },
+       .vback_porch = { 32, 32, 32 },
+       .vsync_len = { 1, 1, 3 },
+       .flags = DISPLAY_FLAGS_DE_HIGH,
+};
+
+static const struct panel_desc tianma_tm070rvhg71 = {
+       .timings = &tianma_tm070rvhg71_timing,
+       .num_timings = 1,
+       .bpc = 8,
+       .size = {
+               .width = 154,
+               .height = 86,
+       },
+       .bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
+};
+
 static const struct drm_display_mode toshiba_lt089ac29000_mode = {
        .clock = 79500,
        .hdisplay = 1280,
@@ -2142,6 +2166,9 @@ static const struct of_device_id platform_of_match[] = {
        }, {
                .compatible = "tianma,tm070jdhg30",
                .data = &tianma_tm070jdhg30,
+       }, {
+               .compatible = "tianma,tm070rvhg71",
+               .data = &tianma_tm070rvhg71,
        }, {
                .compatible = "toshiba,lt089ac29000",
                .data = &toshiba_lt089ac29000,