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.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1475070703-6435-3-git-send-email-ville.syrjala@linux.intel.com

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 065896add86eea75b32e20ded444f15e2da79b3b..d0166cc990cbc7b0c63f8f4770e5f4a1d2a1f826 100644 (file)
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3365,6 +3365,9 @@ 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");