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drm/edid: Add quirk for Sony PVM-2541A to get 12 bpc hdmi deep color.

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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>
This commit is contained in:
Mario Kleiner 2014-05-23 21:40:55 +02:00 committed by Alex Deucher
parent d0c94692e0
commit bc5b96414c
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/drm_edid.c
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@ -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);