From: Mario Kleiner mario.kleiner.de@gmail.com
The Sony PVM-2541A OLED high precision color display supports both 10 bpc and 12 bpc hdmi deep color input, but its edid does not signal any deep color support.
Add a quirk to force it being treated as a 12 bpc panel.
Signed-off-by: Mario Kleiner mario.kleiner.de@gmail.com Signed-off-by: Alex Deucher alexander.deucher@amd.com --- drivers/gpu/drm/drm_edid.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 3989c18..643f830 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -70,6 +70,8 @@ #define EDID_QUIRK_FORCE_REDUCED_BLANKING (1 << 7) /* Force 8bpc */ #define EDID_QUIRK_FORCE_8BPC (1 << 8) +/* Force 12bpc */ +#define EDID_QUIRK_FORCE_12BPC (1 << 9)
struct detailed_mode_closure { struct drm_connector *connector; @@ -125,6 +127,9 @@ static struct edid_quirk { { "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 }, { "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
+ /* Sony PVM-2541A does up to 12 bpc, but only reports max 8 bpc */ + { "SNY", 0x2541, EDID_QUIRK_FORCE_12BPC }, + /* ViewSonic VA2026w */ { "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING },
@@ -3660,6 +3665,9 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid) if (quirks & EDID_QUIRK_FORCE_8BPC) connector->display_info.bpc = 8;
+ if (quirks & EDID_QUIRK_FORCE_12BPC) + connector->display_info.bpc = 12; + return num_modes; } EXPORT_SYMBOL(drm_add_edid_modes);