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Commit cd1965db authored by Florian Fainelli's avatar Florian Fainelli Committed by Greg Kroah-Hartman
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USB: ohci: move ohci_pci_{suspend,resume} to ohci-hcd.c 



As suggested by Alan Stern, move the ohci-pci.c ohci_pci_{suspend,resume}
routines to ohci-hcd.c. Due to their move, also rename them to
ohci_{suspend,resume} to make it clear they operate on ohci_hcd. Since they
are not necessarily called, annotate them with __maybe_unused, and make them
enclosed within an #ifdef CONFIG_PM / #endif section.

Signed-off-by: default avatarFlorian Fainelli <florian@openwrt.org>
Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 2b16e39e

drivers/usb/host/ohci-hcd.c

+43 −0
Original line number Diff line number Diff line
@@ -1011,6 +1011,49 @@ static int ohci_restart (struct ohci_hcd *ohci) 


#endif



#ifdef CONFIG_PM



static int __maybe_unused ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)

{

	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);

	unsigned long	flags;

	int		rc = 0;



	/* Root hub was already suspended. Disable irq emission and

	 * mark HW unaccessible, bail out if RH has been resumed. Use

	 * the spinlock to properly synchronize with possible pending

	 * RH suspend or resume activity.

	 */

	spin_lock_irqsave (&ohci->lock, flags);

	if (ohci->rh_state != OHCI_RH_SUSPENDED) {

		rc = -EINVAL;

		goto bail;

	}

	ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);

	(void)ohci_readl(ohci, &ohci->regs->intrdisable);



	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);

 bail:

	spin_unlock_irqrestore (&ohci->lock, flags);



	return rc;

}





static int __maybe_unused ohci_resume(struct usb_hcd *hcd, bool hibernated)

{

	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);



	/* Make sure resume from hibernation re-enumerates everything */

	if (hibernated)

		ohci_usb_reset(hcd_to_ohci(hcd));



	ohci_finish_controller_resume(hcd);

	return 0;

}



#endif



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



MODULE_AUTHOR (DRIVER_AUTHOR);

drivers/usb/host/ohci-pci.c

+2 −45
Original line number Diff line number Diff line
@@ -296,49 +296,6 @@ static int __devinit ohci_pci_start (struct usb_hcd *hcd) 
	return ret;

}



#ifdef	CONFIG_PM



static int ohci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)

{

	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);

	unsigned long	flags;

	int		rc = 0;



	/* Root hub was already suspended. Disable irq emission and

	 * mark HW unaccessible, bail out if RH has been resumed. Use

	 * the spinlock to properly synchronize with possible pending

	 * RH suspend or resume activity.

	 */

	spin_lock_irqsave (&ohci->lock, flags);

	if (ohci->rh_state != OHCI_RH_SUSPENDED) {

		rc = -EINVAL;

		goto bail;

	}

	ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);

	(void)ohci_readl(ohci, &ohci->regs->intrdisable);



	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);

 bail:

	spin_unlock_irqrestore (&ohci->lock, flags);



	return rc;

}





static int ohci_pci_resume(struct usb_hcd *hcd, bool hibernated)

{

	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);



	/* Make sure resume from hibernation re-enumerates everything */

	if (hibernated)

		ohci_usb_reset(hcd_to_ohci(hcd));



	ohci_finish_controller_resume(hcd);

	return 0;

}



#endif	/* CONFIG_PM */





/*-------------------------------------------------------------------------*/
@@ -362,8 +319,8 @@ static const struct hc_driver ohci_pci_hc_driver = { 
	.shutdown =		ohci_shutdown,



#ifdef	CONFIG_PM

	.pci_suspend =		ohci_pci_suspend,

	.pci_resume =		ohci_pci_resume,

	.pci_suspend =		ohci_suspend,

	.pci_resume =		ohci_resume,

#endif



	/*