Commit 69da3015 authored by Adam Jackson's avatar Adam Jackson Committed by Dave Airlie

drm/edid: Skip empty CVT codepoints

Signed-off-by: default avatarAdam Jackson <ajax@redhat.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent e6be8d9d
...@@ -911,11 +911,15 @@ static int drm_cvt_modes(struct drm_connector *connector, ...@@ -911,11 +911,15 @@ static int drm_cvt_modes(struct drm_connector *connector,
struct drm_device *dev = connector->dev; struct drm_device *dev = connector->dev;
struct cvt_timing *cvt; struct cvt_timing *cvt;
const int rates[] = { 60, 85, 75, 60, 50 }; const int rates[] = { 60, 85, 75, 60, 50 };
const u8 empty[3] = { 0, 0, 0 };
for (i = 0; i < 4; i++) { for (i = 0; i < 4; i++) {
int uninitialized_var(width), height; int uninitialized_var(width), height;
cvt = &(timing->data.other_data.data.cvt[i]); 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; height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 8) + 1) * 2;
switch (cvt->code[1] & 0xc0) { switch (cvt->code[1] & 0xc0) {
case 0x00: case 0x00:
......
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