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Commit b5b5c3ac authored by Sarah Sharp's avatar Sarah Sharp Committed by Greg Kroah-Hartman
Browse files

USB: xhci: Fix compile error when CONFIG_PM=n 



Fix this error when CONFIG_PM is not enabled:

drivers/usb/host/xhci.c:675: error: implicit declaration of function 'usb_root_hub_lost_power'

Wrap xhci_suspend() and xhci_resume() into an ifdef CONFIG_PM, along with
the functions that only they call -- xhci_save_registers() and
xhci_restore_registers().

Reported-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: default avatarSarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 56626a72

drivers/usb/host/xhci.c

+8 −0
Original line number Diff line number Diff line
@@ -551,6 +551,7 @@ void xhci_shutdown(struct usb_hcd *hcd) 
		    xhci_readl(xhci, &xhci->op_regs->status));

}



#ifdef CONFIG_PM

static void xhci_save_registers(struct xhci_hcd *xhci)

{

	xhci->s3.command = xhci_readl(xhci, &xhci->op_regs->command);
@@ -761,6 +762,13 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) 
	return 0;

}



#else



#define	xhci_suspend	NULL

#define	xhci_resume	NULL



#endif	/* CONFIG_PM */



/*-------------------------------------------------------------------------*/



/**