drm/panel: simple: Add support for Samsung LTN140AT29 panel

This panel is used by the Nyan Blaze board and can be supported by the
simple-panel driver.

Signed-off-by: Stéphane Marchesin <marcheu@chromium.org>
[tomeu.vizoso@collabora.com: add device tree binding document]
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

2 files changed, 33 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/panel/samsung,ltn140at29-301.txt b/Documentation/devicetree/bindings/panel/samsung,ltn140at29-301.txt
new file mode 100644
index 000000000000..e7f969d891cc
--- /dev/null
+++ b/Documentation/devicetree/bindings/panel/samsung,ltn140at29-301.txt
@@ -0,0 +1,7 @@
+Samsung Electronics 14" WXGA (1366x768) TFT LCD panel
+
+Required properties:
+- compatible: should be "samsung,ltn140at29-301"
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 39806c335339..2da228576d0c 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -779,6 +779,29 @@ static const struct panel_desc samsung_ltn101nt05 = {
         },
 };
 
+static const struct drm_display_mode samsung_ltn140at29_301_mode = {
+        .clock = 76300,
+        .hdisplay = 1366,
+        .hsync_start = 1366 + 64,
+        .hsync_end = 1366 + 64 + 48,
+        .htotal = 1366 + 64 + 48 + 128,
+        .vdisplay = 768,
+        .vsync_start = 768 + 2,
+        .vsync_end = 768 + 2 + 5,
+        .vtotal = 768 + 2 + 5 + 17,
+        .vrefresh = 60,
+};
+
+static const struct panel_desc samsung_ltn140at29_301 = {
+        .modes = &samsung_ltn140at29_301_mode,
+        .num_modes = 1,
+        .bpc = 6,
+        .size = {
+                .width = 320,
+                .height = 187,
+        },
+};
+
 static const struct of_device_id platform_of_match[] = {
         {
                 .compatible = "auo,b101aw03",
@@ -841,6 +864,9 @@ static const struct of_device_id platform_of_match[] = {
                 .compatible = "samsung,ltn101nt05",
                 .data = &samsung_ltn101nt05,
         }, {
+                .compatible = "samsung,ltn140at29-301",
+                .data = &samsung_ltn140at29_301,
+        }, {
                 /* sentinel */
         }
 };