Commit 4a638b4e authored May 25, 2010 by Adam Jackson Committed by Dave Airlie May 26, 2010

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: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

parent 921d98b5

drivers/gpu/drm/drm_edid.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -147,6 +147,9 @@ drm_edid_block_valid(u8 *raw_edid)
		csum += raw_edid[i];
		if (csum) {
		DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);

		/* allow CEA to slide through, switches mangle this */
		if (raw_edid[0] != 0x02)
		goto bad;
		}