drm/panel: simple: Add support for the LeMaker BL035-RGB-002 3.5" LCD

This adds support for the 3.5" LCD panel from LeMaker, sold for use with
BananaPi boards. It comes with a 24-bit RGB888 parallel interface and
requires an active-low DE signal

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181107181843.27628-7-contact@paulk.fr

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 9c69e73..56ec954 100644 (file)
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1597,6 +1597,30 @@ static const struct panel_desc kyo_tcg121xglp = {
        .bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
 };
 
+static const struct drm_display_mode lemaker_bl035_rgb_002_mode = {
+       .clock = 7000,
+       .hdisplay = 320,
+       .hsync_start = 320 + 20,
+       .hsync_end = 320 + 20 + 30,
+       .htotal = 320 + 20 + 30 + 38,
+       .vdisplay = 240,
+       .vsync_start = 240 + 4,
+       .vsync_end = 240 + 4 + 3,
+       .vtotal = 240 + 4 + 3 + 15,
+       .vrefresh = 60,
+};
+
+static const struct panel_desc lemaker_bl035_rgb_002 = {
+       .modes = &lemaker_bl035_rgb_002_mode,
+       .num_modes = 1,
+       .size = {
+               .width = 70,
+               .height = 52,
+       },
+       .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+       .bus_flags = DRM_BUS_FLAG_DE_LOW,
+};
+
 static const struct drm_display_mode lg_lb070wv8_mode = {
        .clock = 33246,
        .hdisplay = 800,
@@ -2638,6 +2662,9 @@ static const struct of_device_id platform_of_match[] = {
                .compatible = "kyo,tcg121xglp",
                .data = &kyo_tcg121xglp,
        }, {
+               .compatible = "lemaker,bl035-rgb-002",
+               .data = &lemaker_bl035_rgb_002,
+       }, {
                .compatible = "lg,lb070wv8",
                .data = &lg_lb070wv8,
        }, {