diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/core/hcd-pci.c | 76 |
1 files changed, 62 insertions, 14 deletions
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index 352577baa53..fe6b8d40a50 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -250,6 +250,9 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) if (retval != 0) goto err4; set_hs_companion(dev, hcd); + + if (pci_dev_run_wake(dev)) + pm_runtime_put_noidle(&dev->dev); return retval; err4: @@ -292,6 +295,9 @@ void usb_hcd_pci_remove(struct pci_dev *dev) if (!hcd) return; + if (pci_dev_run_wake(dev)) + pm_runtime_get_noresume(&dev->dev); + /* Fake an interrupt request in order to give the driver a chance * to test whether the controller hardware has been removed (e.g., * cardbus physical eject). @@ -325,12 +331,13 @@ void usb_hcd_pci_shutdown(struct pci_dev *dev) if (!hcd) return; - if (hcd->driver->shutdown) + if (test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags) && + hcd->driver->shutdown) hcd->driver->shutdown(hcd); } EXPORT_SYMBOL_GPL(usb_hcd_pci_shutdown); -#ifdef CONFIG_PM_SLEEP +#ifdef CONFIG_PM_OPS #ifdef CONFIG_PPC_PMAC static void powermac_set_asic(struct pci_dev *pci_dev, int enable) @@ -366,7 +373,7 @@ static int check_root_hub_suspended(struct device *dev) return 0; } -static int hcd_pci_suspend(struct device *dev) +static int suspend_common(struct device *dev, bool do_wakeup) { struct pci_dev *pci_dev = to_pci_dev(dev); struct usb_hcd *hcd = pci_get_drvdata(pci_dev); @@ -381,13 +388,7 @@ static int hcd_pci_suspend(struct device *dev) if (retval) return retval; - /* We might already be suspended (runtime PM -- not yet written) */ - if (pci_dev->current_state != PCI_D0) - return retval; - if (hcd->driver->pci_suspend) { - bool do_wakeup = device_may_wakeup(dev); - /* Optimization: Don't suspend if a root-hub wakeup is * pending and it would cause the HCD to wake up anyway. */ @@ -439,10 +440,8 @@ static int resume_common(struct device *dev, int event) clear_bit(HCD_FLAG_SAW_IRQ, &hcd->flags); if (hcd->driver->pci_resume) { - /* This call should be made only during system resume, - * not during runtime resume. - */ - wait_for_companions(pci_dev, hcd); + if (event != PM_EVENT_AUTO_RESUME) + wait_for_companions(pci_dev, hcd); retval = hcd->driver->pci_resume(hcd, event == PM_EVENT_RESTORE); @@ -454,6 +453,13 @@ static int resume_common(struct device *dev, int event) return retval; } +#ifdef CONFIG_PM_SLEEP + +static int hcd_pci_suspend(struct device *dev) +{ + return suspend_common(dev, device_may_wakeup(dev)); +} + static int hcd_pci_suspend_noirq(struct device *dev) { struct pci_dev *pci_dev = to_pci_dev(dev); @@ -513,6 +519,46 @@ static int hcd_pci_restore(struct device *dev) return resume_common(dev, PM_EVENT_RESTORE); } +#else + +#define hcd_pci_suspend NULL +#define hcd_pci_suspend_noirq NULL +#define hcd_pci_resume_noirq NULL +#define hcd_pci_resume NULL +#define hcd_pci_restore NULL + +#endif /* CONFIG_PM_SLEEP */ + +#ifdef CONFIG_PM_RUNTIME + +static int hcd_pci_runtime_suspend(struct device *dev) +{ + int retval; + + retval = suspend_common(dev, true); + if (retval == 0) + powermac_set_asic(to_pci_dev(dev), 0); + dev_dbg(dev, "hcd_pci_runtime_suspend: %d\n", retval); + return retval; +} + +static int hcd_pci_runtime_resume(struct device *dev) +{ + int retval; + + powermac_set_asic(to_pci_dev(dev), 1); + retval = resume_common(dev, PM_EVENT_AUTO_RESUME); + dev_dbg(dev, "hcd_pci_runtime_resume: %d\n", retval); + return retval; +} + +#else + +#define hcd_pci_runtime_suspend NULL +#define hcd_pci_runtime_resume NULL + +#endif /* CONFIG_PM_RUNTIME */ + const struct dev_pm_ops usb_hcd_pci_pm_ops = { .suspend = hcd_pci_suspend, .suspend_noirq = hcd_pci_suspend_noirq, @@ -526,7 +572,9 @@ const struct dev_pm_ops usb_hcd_pci_pm_ops = { .poweroff_noirq = hcd_pci_suspend_noirq, .restore_noirq = hcd_pci_resume_noirq, .restore = hcd_pci_restore, + .runtime_suspend = hcd_pci_runtime_suspend, + .runtime_resume = hcd_pci_runtime_resume, }; EXPORT_SYMBOL_GPL(usb_hcd_pci_pm_ops); -#endif /* CONFIG_PM_SLEEP */ +#endif /* CONFIG_PM_OPS */ |