[PATCH AUTOSEL 5.5 169/542] drm/panel: simple: Add Logic PD Type 28 display support

[Sasha Levin]

From: Adam Ford <aford173 at gmail.com>

[ 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 at gmail.com>
Reviewed-by: Sam Ravnborg <sam at ravnborg.org>
Signed-off-by: Sam Ravnborg <sam at ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191016135147.7743-1-aford173@gmail.com
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 drivers/gpu/drm/panel/panel-simple.c | 37 ++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 5d487686d25c5..72f69709f3493 100644
--- 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,
-- 
2.20.1