XHCI_PS_PED
xhci_op_write_4(sc, port, v & ~XHCI_PS_PED);
if (v & XHCI_PS_PED) i |= UPS_PORT_ENABLED;
xhci_op_write_4(sc, port, v | XHCI_PS_PED);
if (((v & XHCI_PS_PED) == 0) ||