drm/panel: simple: add support for NEC NL12880B20-05

This adds support for the NEC LCD Technologies, Ltd. 12.1"
WXGA (1280x800) LVDS TFT LCD panel, which can be supported
by the simple panel driver.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170608180758.31020-1-l.stach@pengutronix.de

2 files changed, 38 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/display/panel/nec,nl12880b20-05.txt b/Documentation/devicetree/bindings/display/panel/nec,nl12880b20-05.txt
new file mode 100644
index 000000000000..71cbc49ecfab
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/nec,nl12880b20-05.txt
@@ -0,0 +1,8 @@
+NEC LCD Technologies, Ltd. 12.1" WXGA (1280x800) LVDS TFT LCD panel
+
+Required properties:
+- compatible: should be "nec,nl12880bc20-05"
+- power-supply: as specified in the base binding
+
+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 c4566ce8fda7..585b37f9171a 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1322,6 +1322,33 @@ static const struct panel_desc lg_lp129qe = {
         },
 };
 
+static const struct display_timing nec_nl12880bc20_05_timing = {
+        .pixelclock = { 67000000, 71000000, 75000000 },
+        .hactive = { 1280, 1280, 1280 },
+        .hfront_porch = { 2, 30, 30 },
+        .hback_porch = { 6, 100, 100 },
+        .hsync_len = { 2, 30, 30 },
+        .vactive = { 800, 800, 800 },
+        .vfront_porch = { 5, 5, 5 },
+        .vback_porch = { 11, 11, 11 },
+        .vsync_len = { 7, 7, 7 },
+};
+
+static const struct panel_desc nec_nl12880bc20_05 = {
+        .timings = &nec_nl12880bc20_05_timing,
+        .num_timings = 1,
+        .bpc = 8,
+        .size = {
+                .width = 261,
+                .height = 163,
+        },
+        .delay = {
+                .enable = 50,
+                .disable = 50,
+        },
+        .bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
+};
+
 static const struct drm_display_mode nec_nl4827hc19_05b_mode = {
         .clock = 10870,
         .hdisplay = 480,
@@ -1972,6 +1999,9 @@ static const struct of_device_id platform_of_match[] = {
                 .compatible = "lg,lp129qe",
                 .data = &lg_lp129qe,
         }, {
+                .compatible = "nec,nl12880bc20-05",
+                .data = &nec_nl12880bc20_05,
+        }, {
                 .compatible = "nec,nl4827hc19-05b",
                 .data = &nec_nl4827hc19_05b,
         }, {