drm_dp_is_branch
drm_dp_is_branch(intel_dp->dpcd));
if (!drm_dp_is_branch(intel_dp->dpcd))
if (!drm_dp_is_branch(dpcd))
drm_dp_is_branch(intel_dp->dpcd));
drm_dp_read_desc(&dp->aux, &dp->desc, drm_dp_is_branch(dp->dpcd));