DETECT_REASON_HPD
ret = dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
ret = dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
dc_link_detect(link, DETECT_REASON_HPD))
ret = dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
ret = dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
enum signal_type signal = link_detect_sink_signal_type(link, DETECT_REASON_HPD);