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drm/edid: Fix CVT width/height decode

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Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Adam Jackson 2010-01-04 17:53:07 -05:00 committed by Dave Airlie
parent 69da301589
commit 8e10ee9a0d
1 changed files with 5 additions and 5 deletions
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10
drivers/gpu/drm/drm_edid.c
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@ -920,18 +920,18 @@ static int drm_cvt_modes(struct drm_connector *connector,
if (!memcmp(cvt->code, empty, 3))
continue;
height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 8) + 1) * 2;
switch (cvt->code[1] & 0xc0) {
height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 4) + 1) * 2;
switch (cvt->code[1] & 0x0c) {
case 0x00:
width = height * 4 / 3;
break;
case 0x40:
case 0x04:
width = height * 16 / 9;
break;
case 0x80:
case 0x08:
width = height * 16 / 10;
break;
case 0xc0:
case 0x0c:
width = height * 15 / 9;
break;
}