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USB: ohci: move ohci_pci_{suspend,resume} to ohci-hcd.c

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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: Florian Fainelli <florian@openwrt.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Florian Fainelli 2012-10-08 15:11:27 +02:00 committed by Greg Kroah-Hartman
parent 2b16e39ee0
commit cd1965db05
2 changed files with 45 additions and 45 deletions
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43
drivers/usb/host/ohci-hcd.c
View File

@ -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);

47
drivers/usb/host/ohci-pci.c
View File

@ -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
/*