drm/i915/dp: Zero the DPCD data before connection probe

Signed-off-by: Adam Jackson <[email protected]> Reviewed-by: Keith Packard <[email protected]> Signed-off-by: Keith Packard <[email protected]>
akeromi · Jul 25, 2011 · 97cdd71 · 97cdd71
1 parent 9c54c0d
commit 97cdd71
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
@@ -1673,6 +1673,7 @@ intel_dp_detect(struct drm_connector *connector, bool force)
 	struct edid *edid = NULL;
 
 	intel_dp->has_audio = false;
+	memset(intel_dp->dpcd, 0, sizeof(intel_dp->dpcd));
 
 	if (HAS_PCH_SPLIT(dev))
 		status = ironlake_dp_detect(intel_dp);