static int
ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
if (device_may_wakeup(&pdev->dev))
enable_irq_wake(hcd->irq);
/*
* The integrated transceivers seem unable to notice disconnect,
* reconnect, or wakeup without the 48 MHz clock active. so for
* correctness, always discard connection state (using reset).
*
* REVISIT: some boards will be able to turn VBUS off...
*/
if (at91_suspend_entering_slow_clock()) {
ohci_usb_reset (ohci);
/* flush the writes */
(void) ohci_readl (ohci, &ohci->regs->control);
at91_stop_clock();
}
return 0;
}
static int ohci_hcd_s5pv210_drv_suspend(struct platform_device *pdev, pm_message_t message)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
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.
*
* This is still racy as hcd->state is manipulated outside of
* any locks =P But that will be a different fix.
*/
spin_lock_irqsave(&ohci->lock, flags);
if (hcd->state != HC_STATE_SUSPENDED) {
rc = -EINVAL;
goto bail;
}
/* make sure snapshot being resumed re-enumerates everything */
if (message.event == PM_EVENT_PRETHAW) {
ohci_usb_reset(ohci);
}
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
s5pv210_stop_ohc();
bail:
spin_unlock_irqrestore(&ohci->lock, flags);
return rc;
}
static void ohci_exynos_stop(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
ohci_dump(ohci, 1);
if (quirk_nec(ohci))
flush_work_sync(&ohci->nec_work);
ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
ohci_usb_reset(ohci);
free_irq(hcd->irq, hcd);
hcd->irq = 0;
if (quirk_zfmicro(ohci))
del_timer(&ohci->unlink_watchdog);
if (quirk_amdiso(ohci))
usb_amd_dev_put();
remove_debug_files(ohci);
ohci_mem_cleanup(ohci);
if (ohci->hcca) {
dma_free_coherent(hcd->self.controller,
sizeof *ohci->hcca,
ohci->hcca, ohci->hcca_dma);
ohci->hcca = NULL;
ohci->hcca_dma = 0;
}
}
static int ohci_brcm_resume(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
brcm_usb_resume(hcd);
ohci_usb_reset(hcd_to_ohci(hcd));
ohci_finish_controller_resume(hcd);
return 0;
}
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;
}