XHCI_PS_LWS
XHCI_PS_PLS_SET(0xF) | XHCI_PS_LWS);
XHCI_PS_PLS_SET(0) | XHCI_PS_LWS);
XHCI_PS_PLS_SET(i) | XHCI_PS_LWS);
XHCI_PS_PLS_SET(i ? 2 /* LPM */ : 3) | XHCI_PS_LWS);
XHCI_PS_LWS | XHCI_PS_DR | XHCI_PS_WPR));
if (!(value & XHCI_PS_LWS))