analogix_dp_get_plug_in_status
ret = readx_poll_timeout(analogix_dp_get_plug_in_status, dp, val, !val,
if (analogix_dp_get_plug_in_status(dp) == 0)
if (analogix_dp_get_plug_in_status(dp) != 0) {
int analogix_dp_get_plug_in_status(struct analogix_dp_device *dp);