From: Ville Syrjälä Date: Wed, 28 Sep 2016 13:51:35 +0000 (+0300) Subject: UPSTREAM: drm/edid: Clear old dvi_dual/max_tmds_clock before parsing the new EDID X-Git-Tag: release-20171130_firefly~4^2~359 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a9541c5897e843166807f1fa042840525eeeed36;p=firefly-linux-kernel-4.4.55.git UPSTREAM: drm/edid: Clear old dvi_dual/max_tmds_clock before parsing the new EDID Clear out old max_tmds_clock and dvi_dual information (possibly from a previous EDID) before parsing the current EDID. Tne current EDID might not even have these in its HDMI VSDB, which would mean that we'd leave the old stale values in place. Change-Id: Ia0acb9ca673f8bf9badfda1cf99899298bae464b Signed-off-by: Ville Syrjälä Acked-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1475070703-6435-3-git-send-email-ville.syrjala@linux.intel.com Signed-off-by: Zheng Yang (cherry picked from commit 75d7e542bd3669a7ce41b713be8d3fd71e0ed2fa) --- diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 06089fc57ef8..d53a59423f9f 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -3705,6 +3705,9 @@ void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid) connector->video_latency[1] = 0; connector->audio_latency[1] = 0; + connector->max_tmds_clock = 0; + connector->dvi_dual = false; + cea = drm_find_cea_extension(edid); if (!cea) { DRM_DEBUG_KMS("ELD: no CEA Extension found\n");