Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b94ee652 authored by Jesse Barnes's avatar Jesse Barnes Committed by Dave Airlie
Browse files

drm: fix EDID backward compat check 



EDIDs should be backward compatible, so don't bail if we see a version
of 3 (which is out there now) and print a message if we see something
newer, but allow it to be parsed.

Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 6714977b

drivers/gpu/drm/drm_edid.c

+2 −4
Original line number Diff line number Diff line
@@ -125,10 +125,8 @@ static bool edid_is_valid(struct edid *edid) 
		DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);

		goto bad;

	}

	if (edid->revision > 3) {

		DRM_ERROR("EDID has minor version %d, which is not between 0-3\n", edid->revision);

		goto bad;

	}

	if (edid->revision > 4)

		DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");



	for (i = 0; i < EDID_LENGTH; i++)

		csum += raw_edid[i];