XHCI_PS_PP
XWRITE4(sc, oper, port, v & ~XHCI_PS_PP);
if (v & XHCI_PS_PP)
XWRITE4(sc, oper, port, v | XHCI_PS_PP);
XHCI_PS_PP; /* port power */
port->portsc = XHCI_PS_PLS_SET(UPS_PORT_LS_RX_DET) | XHCI_PS_PP;
if ((p->portsc & XHCI_PS_PP) == 0) {