diff options
| author | Adam Jackson <ajax@redhat.com> | 2010-01-04 17:53:06 -0500 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-01-07 13:17:48 +1000 |
| commit | 69da301589b579f9619475e30cc449df9193410c (patch) | |
| tree | f2a63491fd039411d019cd3b5a4a11452ad3f53b | |
| parent | e6be8d9d17bd44061116f601fe2609b3ace7aa69 (diff) | |
| download | linux-69da301589b579f9619475e30cc449df9193410c.tar.gz | |
drm/edid: Skip empty CVT codepoints
Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 5c9f79877cbf..7d6ac22f5b2d 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -911,11 +911,15 @@ static int drm_cvt_modes(struct drm_connector *connector, struct drm_device *dev = connector->dev; struct cvt_timing *cvt; const int rates[] = { 60, 85, 75, 60, 50 }; + const u8 empty[3] = { 0, 0, 0 }; for (i = 0; i < 4; i++) { int uninitialized_var(width), height; cvt = &(timing->data.other_data.data.cvt[i]); + if (!memcmp(cvt->code, empty, 3)) + continue; + height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 8) + 1) * 2; switch (cvt->code[1] & 0xc0) { case 0x00: |