drm/panel: Add support for Armadeus ST0700 Adapt

[ Upstream commit c479450f61c7f1f248c9a54aedacd2a6ca521ff8 ]

This patch adds support for the Armadeus ST0700 Adapt. It comes with a
Santek ST0700I5Y-RBSLW 7.0" WVGA (800x480) TFT and an adapter board so
that it can be connected on the TFT header of Armadeus Dev boards.

Cc: stable@vger.kernel.org # v4.19
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190507152713.27494-1-sebastien.szymanski@armadeus.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/Documentation/devicetree/bindings/display/panel/armadeus,st0700-adapt.txt b/Documentation/devicetree/bindings/display/panel/armadeus,st0700-adapt.txt
new file mode 100644 (file)
index 0000000..a30d63d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/armadeus,st0700-adapt.txt
@@ -0,0 +1,9 @@
+Armadeus ST0700 Adapt. A Santek ST0700I5Y-RBSLW 7.0" WVGA (800x480) TFT with
+an adapter board.
+
+Required properties:
+- compatible: "armadeus,st0700-adapt"
+- power-supply: see panel-common.txt
+
+Optional properties:
+- backlight: see panel-common.txt

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index b1d41c4..5fd94e2 100644 (file)
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -436,6 +436,32 @@ static const struct panel_desc ampire_am800480r3tmqwa1h = {
        .bus_format = MEDIA_BUS_FMT_RGB666_1X18,
 };
 
+static const struct display_timing santek_st0700i5y_rbslw_f_timing = {
+       .pixelclock = { 26400000, 33300000, 46800000 },
+       .hactive = { 800, 800, 800 },
+       .hfront_porch = { 16, 210, 354 },
+       .hback_porch = { 45, 36, 6 },
+       .hsync_len = { 1, 10, 40 },
+       .vactive = { 480, 480, 480 },
+       .vfront_porch = { 7, 22, 147 },
+       .vback_porch = { 22, 13, 3 },
+       .vsync_len = { 1, 10, 20 },
+       .flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
+               DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE
+};
+
+static const struct panel_desc armadeus_st0700_adapt = {
+       .timings = &santek_st0700i5y_rbslw_f_timing,
+       .num_timings = 1,
+       .bpc = 6,
+       .size = {
+               .width = 154,
+               .height = 86,
+       },
+       .bus_format = MEDIA_BUS_FMT_RGB666_1X18,
+       .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_POSEDGE,
+};
+
 static const struct drm_display_mode auo_b101aw03_mode = {
        .clock = 51450,
        .hdisplay = 1024,
@@ -2331,6 +2357,9 @@ static const struct of_device_id platform_of_match[] = {
                .compatible = "ampire,am800480r3tmqwa1h",
                .data = &ampire_am800480r3tmqwa1h,
        }, {
+               .compatible = "armadeus,st0700-adapt",
+               .data = &armadeus_st0700_adapt,
+       }, {
                .compatible = "auo,b101aw03",
                .data = &auo_b101aw03,
        }, {