start_hnp
ohci->start_hnp(ohci);
ohci->start_hnp = start_hnp;
void (*start_hnp)(struct ohci_hcd *ohci);
fsl_otg_tc->phy.otg->start_hnp = fsl_otg_start_hnp;
int (*start_hnp)(struct usb_otg *otg);
if (otg && otg->start_hnp)
return otg->start_hnp(otg);