DP_TEST_REQUEST
DP_TEST_REQUEST,
DP_TEST_REQUEST,
if (drm_dp_dpcd_read_byte(aux, DP_TEST_REQUEST, &link_edid_read) < 0) {
aux->name, DP_TEST_REQUEST);
status = drm_dp_dpcd_readb(&intel_dp->aux, DP_TEST_REQUEST, &request);