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authorAdam Jackson <ajax@redhat.com>2010-03-29 23:43:25 +0200
committerDave Airlie <airlied@redhat.com>2010-04-06 02:40:21 +0200
commita327f6b806103ee177aba20bb1e42ba7ec7d0f4b (patch)
treebd0da52175358cd6c5d1ebfec1e0e4c32dcc1a5d /drivers/gpu/drm/drm_edid.c
parentdrm/edid: Remove some silly comments (diff)
downloadlinux-a327f6b806103ee177aba20bb1e42ba7ec7d0f4b.tar.xz
linux-a327f6b806103ee177aba20bb1e42ba7ec7d0f4b.zip
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 9aa65b289d01..2e1298cf576f 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 &&