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| author | Rafał Miłecki <zajec5@gmail.com> | 2013-12-07 12:22:42 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-01-09 20:25:10 (GMT) |
| commit | b556918588fc14ab6372b9579d512710d52cb32f (patch) | |
| tree | 6c32740733ae3b5deef6dec3be03b85935e33059 /drivers/gpu | |
| parent | 0ce5352593096740d03285378cc3c6c01655ecf0 (diff) | |
| download | linux-fsl-qoriq-b556918588fc14ab6372b9579d512710d52cb32f.tar.xz | |
drm/edid: add quirk for BPC in Samsung NP700G7A-S01PL notebook
commit 49d45a31b71d7d9da74485922bdb63faf3dc9684 upstream.
This bug in EDID was exposed by:
commit eccea7920cfb009c2fa40e9ecdce8c36f61cab66
Author: Alex Deucher <alexander.deucher@amd.com>
Date: Mon Mar 26 15:12:54 2012 -0400
drm/radeon/kms: improve bpc handling (v2)
Which resulted in kind of regression in 3.5. This fixes
https://bugs.freedesktop.org/show_bug.cgi?id=70934
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 830f750..d0d3eae 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -68,6 +68,8 @@ #define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6) /* Force reduced-blanking timings for detailed modes */ #define EDID_QUIRK_FORCE_REDUCED_BLANKING (1 << 7) +/* Force 8bpc */ +#define EDID_QUIRK_FORCE_8BPC (1 << 8) struct detailed_mode_closure { struct drm_connector *connector; @@ -128,6 +130,9 @@ static struct edid_quirk { /* Medion MD 30217 PG */ { "MED", 0x7b8, EDID_QUIRK_PREFER_LARGE_75 }, + + /* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */ + { "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC }, }; /* @@ -3236,6 +3241,9 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid) drm_add_display_info(edid, &connector->display_info); + if (quirks & EDID_QUIRK_FORCE_8BPC) + connector->display_info.bpc = 8; + return num_modes; } EXPORT_SYMBOL(drm_add_edid_modes); |