drm/panel: simple: Add bits-per-color support

The bits-per-color is provided by the EDID normally, but if we're using
panels, we need to store it somewhere. So we add a field to the panel
descriptor for it.

Signed-off-by: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 357712c4446f..fa2aea0981a1 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -37,6 +37,8 @@ struct panel_desc {
         const struct drm_display_mode *modes;
         unsigned int num_modes;
 
+        unsigned int bpc;
+
         struct {
                 unsigned int width;
                 unsigned int height;
@@ -87,6 +89,7 @@ static int panel_simple_get_fixed_modes(struct panel_simple *panel)
                 num++;
         }
 
+        connector->display_info.bpc = panel->desc->bpc;
         connector->display_info.width_mm = panel->desc->size.width;
         connector->display_info.height_mm = panel->desc->size.height;
 
@@ -285,6 +288,7 @@ static const struct drm_display_mode auo_b101aw03_mode = {
 static const struct panel_desc auo_b101aw03 = {
         .modes = &auo_b101aw03_mode,
         .num_modes = 1,
+        .bpc = 6,
         .size = {
                 .width = 223,
                 .height = 125,
@@ -307,6 +311,7 @@ static const struct drm_display_mode auo_b133xtn01_mode = {
 static const struct panel_desc auo_b133xtn01 = {
         .modes = &auo_b133xtn01_mode,
         .num_modes = 1,
+        .bpc = 6,
         .size = {
                 .width = 293,
                 .height = 165,
@@ -329,6 +334,7 @@ static const struct drm_display_mode chunghwa_claa101wa01a_mode = {
 static const struct panel_desc chunghwa_claa101wa01a = {
         .modes = &chunghwa_claa101wa01a_mode,
         .num_modes = 1,
+        .bpc = 6,
         .size = {
                 .width = 220,
                 .height = 120,
@@ -351,6 +357,7 @@ static const struct drm_display_mode chunghwa_claa101wb01_mode = {
 static const struct panel_desc chunghwa_claa101wb01 = {
         .modes = &chunghwa_claa101wb01_mode,
         .num_modes = 1,
+        .bpc = 6,
         .size = {
                 .width = 223,
                 .height = 125,
@@ -374,6 +381,7 @@ static const struct drm_display_mode edt_et057090dhu_mode = {
 static const struct panel_desc edt_et057090dhu = {
         .modes = &edt_et057090dhu_mode,
         .num_modes = 1,
+        .bpc = 6,
         .size = {
                 .width = 115,
                 .height = 86,
@@ -397,6 +405,7 @@ static const struct drm_display_mode edt_etm0700g0dh6_mode = {
 static const struct panel_desc edt_etm0700g0dh6 = {
         .modes = &edt_etm0700g0dh6_mode,
         .num_modes = 1,
+        .bpc = 6,
         .size = {
                 .width = 152,
                 .height = 91,
@@ -441,6 +450,7 @@ static const struct drm_display_mode innolux_n156bge_l21_mode = {
 static const struct panel_desc innolux_n156bge_l21 = {
         .modes = &innolux_n156bge_l21_mode,
         .num_modes = 1,
+        .bpc = 6,
         .size = {
                 .width = 344,
                 .height = 193,
@@ -463,6 +473,7 @@ static const struct drm_display_mode lg_lp129qe_mode = {
 static const struct panel_desc lg_lp129qe = {
         .modes = &lg_lp129qe_mode,
         .num_modes = 1,
+        .bpc = 8,
         .size = {
                 .width = 272,
                 .height = 181,
@@ -485,6 +496,7 @@ static const struct drm_display_mode samsung_ltn101nt05_mode = {
 static const struct panel_desc samsung_ltn101nt05 = {
         .modes = &samsung_ltn101nt05_mode,
         .num_modes = 1,
+        .bpc = 6,
         .size = {
                 .width = 1024,
                 .height = 600,