diff options
Diffstat (limited to 'drivers/pci/pci-driver.c')
| -rw-r--r-- | drivers/pci/pci-driver.c | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 57cb0015a47..2617ebb34e1 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -435,6 +435,31 @@ static int pci_legacy_resume_early(struct device *dev) return error; } +/* Auxiliary functions used by the new power management framework */ + +static bool pci_is_bridge(struct pci_dev *pci_dev) +{ + return !!(pci_dev->subordinate); +} + +static int pci_pm_default_resume(struct pci_dev *pci_dev) +{ + if (!pci_is_bridge(pci_dev)) + pci_enable_wake(pci_dev, PCI_D0, false); + + return pci_default_pm_resume_late(pci_dev); +} + +static void pci_pm_default_suspend(struct pci_dev *pci_dev) +{ + pci_default_pm_suspend_early(pci_dev); + + if (!pci_is_bridge(pci_dev)) + pci_prepare_to_sleep(pci_dev); +} + +/* New power management framework */ + static int pci_pm_prepare(struct device *dev) { struct device_driver *drv = dev->driver; @@ -470,7 +495,7 @@ static int pci_pm_suspend(struct device *dev) } else if (pci_has_legacy_pm_support(pci_dev)) { error = pci_legacy_suspend(dev, PMSG_SUSPEND); } else { - pci_default_pm_suspend_early(pci_dev); + pci_pm_default_suspend(pci_dev); } pci_fixup_device(pci_fixup_suspend, pci_dev); @@ -512,7 +537,7 @@ static int pci_pm_resume(struct device *dev) } else if (pci_has_legacy_pm_support(pci_dev)) { error = pci_legacy_resume(dev); } else { - error = pci_default_pm_resume_late(pci_dev); + error = pci_pm_default_resume(pci_dev); } return error; @@ -642,7 +667,7 @@ static int pci_pm_poweroff(struct device *dev) } else if (pci_has_legacy_pm_support(pci_dev)) { error = pci_legacy_suspend(dev, PMSG_HIBERNATE); } else { - pci_default_pm_suspend_early(pci_dev); + pci_pm_default_suspend(pci_dev); } pci_fixup_device(pci_fixup_suspend, pci_dev); @@ -681,7 +706,7 @@ static int pci_pm_restore(struct device *dev) } else if (pci_has_legacy_pm_support(pci_dev)) { error = pci_legacy_resume(dev); } else { - error = pci_default_pm_resume_late(pci_dev); + error = pci_pm_default_resume(pci_dev); } return error; |