Commit 4a638b4e authored by Adam Jackson's avatar Adam Jackson Committed by Dave Airlie
Browse files

drm/edid: Allow non-fatal checksum errors in CEA blocks

Switches will try to update the topology address and not correctly fix
up the checksum, so just let it slide.

https://bugs.freedesktop.org/28229

Signed-off-by: default avatarAdam Jackson <ajax@redhat.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 921d98b5
......@@ -147,7 +147,10 @@ drm_edid_block_valid(u8 *raw_edid)
csum += raw_edid[i];
if (csum) {
DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);
goto bad;
/* allow CEA to slide through, switches mangle this */
if (raw_edid[0] != 0x02)
goto bad;
}
/* per-block-type checks */
......
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