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| author | Adam Jackson | 2010-01-04 23:53:06 +0100 |
|---|---|---|
| committer | Dave Airlie | 2010-01-07 04:17:48 +0100 |
| commit | 69da301589b579f9619475e30cc449df9193410c (patch) | |
| tree | f2a63491fd039411d019cd3b5a4a11452ad3f53b | |
| parent | drm: remove address mask param for drm_pci_alloc() (diff) | |
| download | kernel-qcow2-linux-69da301589b579f9619475e30cc449df9193410c.tar.gz kernel-qcow2-linux-69da301589b579f9619475e30cc449df9193410c.tar.xz kernel-qcow2-linux-69da301589b579f9619475e30cc449df9193410c.zip | |
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: |