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authorJesse Barnes <jbarnes@virtuousgeek.org>2009-04-02 14:56:24 -0700
committerDave Airlie <airlied@redhat.com>2009-04-03 09:21:46 +1000
commitb94ee6528954b6838e88aa8cf74ed75acf8dfcff (patch)
treead2c401b8878a367e3eb81d98cf1d42b86d81496 /drivers/gpu
parent6714977b45279c3a0b0ec2bc937284d9f116752f (diff)
drm: fix EDID backward compat check
EDIDs should be backward compatible, so don't bail if we see a version of 3 (which is out there now) and print a message if we see something newer, but allow it to be parsed. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/drm_edid.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 2c4a340e682f..ca9c61656714 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -125,10 +125,8 @@ static bool edid_is_valid(struct edid *edid)
DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);
goto bad;
}
- if (edid->revision > 3) {
- DRM_ERROR("EDID has minor version %d, which is not between 0-3\n", edid->revision);
- goto bad;
- }
+ if (edid->revision > 4)
+ DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");
for (i = 0; i < EDID_LENGTH; i++)
csum += raw_edid[i];