drm/panel: simple: Add Logic PD Type 28 display support

[ Upstream commit 0d35408afbeb603bc9972ae91e4dd2638bcffe52 ]

Previously, there was an omap panel-dpi driver that would
read generic timings from the device tree and set the display
timing accordingly.  This driver was removed so the screen
no longer functions.  This patch modifies the panel-simple
file to setup the timings to the same values previously used.

Fixes: 8bf4b1621178 ("drm/omap: Remove panel-dpi driver")
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191016135147.7743-1-aford173@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 5d487686d25c510cb55fede3eb624b284e273b90..72f69709f34931d489ed7fae201260c498b63635 100644 (file)
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -2061,6 +2061,40 @@ static const struct drm_display_mode mitsubishi_aa070mc01_mode = {
        .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
 };
 
+static const struct drm_display_mode logicpd_type_28_mode = {
+       .clock = 9000,
+       .hdisplay = 480,
+       .hsync_start = 480 + 3,
+       .hsync_end = 480 + 3 + 42,
+       .htotal = 480 + 3 + 42 + 2,
+
+       .vdisplay = 272,
+       .vsync_start = 272 + 2,
+       .vsync_end = 272 + 2 + 11,
+       .vtotal = 272 + 2 + 11 + 3,
+       .vrefresh = 60,
+       .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
+};
+
+static const struct panel_desc logicpd_type_28 = {
+       .modes = &logicpd_type_28_mode,
+       .num_modes = 1,
+       .bpc = 8,
+       .size = {
+               .width = 105,
+               .height = 67,
+       },
+       .delay = {
+               .prepare = 200,
+               .enable = 200,
+               .unprepare = 200,
+               .disable = 200,
+       },
+       .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+       .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE |
+                    DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE,
+};
+
 static const struct panel_desc mitsubishi_aa070mc01 = {
        .modes = &mitsubishi_aa070mc01_mode,
        .num_modes = 1,
@@ -3287,6 +3321,9 @@ static const struct of_device_id platform_of_match[] = {
        }, {
                .compatible = "lg,lp129qe",
                .data = &lg_lp129qe,
+       }, {
+               .compatible = "logicpd,type28",
+               .data = &logicpd_type_28,
        }, {
                .compatible = "mitsubishi,aa070mc01-ca1",
                .data = &mitsubishi_aa070mc01,