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authorAdam Jackson <ajax@redhat.com>2010-03-29 21:43:25 +0000
committerDave Airlie <airlied@redhat.com>2010-04-06 10:40:21 +1000
commita327f6b806103ee177aba20bb1e42ba7ec7d0f4b (patch)
treebd0da52175358cd6c5d1ebfec1e0e4c32dcc1a5d /drivers/gpu/drm/drm_edid.c
parent59d8aff6e4fc2705053e7ce2948b51f7fe507536 (diff)
downloadop-kernel-dev-a327f6b806103ee177aba20bb1e42ba7ec7d0f4b.zip
op-kernel-dev-a327f6b806103ee177aba20bb1e42ba7ec7d0f4b.tar.gz
drm/edid: Fix preferred mode parse for EDID 1.4
In 1.4, the first detailed mode is always the preferred mode. The bit that used to mean that, now means "this mode is the physical size in pixels". Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
-rw-r--r--drivers/gpu/drm/drm_edid.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 9aa65b2..2e1298c 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1295,7 +1295,10 @@ static int add_detailed_info(struct drm_connector *connector,
for (i = 0; i < EDID_DETAILED_TIMINGS; i++) {
struct detailed_timing *timing = &edid->detailed_timings[i];
- int preferred = (i == 0) && (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
+ int preferred = (i == 0);
+
+ if (preferred && edid->version == 1 && edid->revision < 4)
+ preferred = (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
/* In 1.0, only timings are allowed */
if (!timing->pixel_clock && edid->version == 1 &&
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