DP_DOWN_STREAM_PORT_COUNT
if (!(dig_connector->dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT))
DP_DOWN_STREAM_PORT_COUNT,
down_strm_port_count.raw = dpcd_data[DP_DOWN_STREAM_PORT_COUNT -
if (!(dig_connector->dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT))