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Merge branch 'pci/rafael-pm' into next 

* pci/rafael-pm:
  PCI/PM: Make pci_pme_active() ignore devices without PME support
  PCI/PM: Fix fallback to PCI_D0 in pci_platform_power_transition()
This commit is contained in:
Bjorn Helgaas 2013-04-17 10:43:16 -06:00
parent 723ec4d06c ffaddbe8f9
commit 42c34707f9
1 changed files with 6 additions and 11 deletions
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17
drivers/pci/pci.c
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@ -646,15 +646,11 @@ static int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state)
error = platform_pci_set_power_state(dev, state); error = platform_pci_set_power_state(dev, state);
if (!error) if (!error)
pci_update_current_state(dev, state); pci_update_current_state(dev, state);
/* Fall back to PCI_D0 if native PM is not supported */ } else
if (!dev->pm_cap)
dev->current_state = PCI_D0;
} else {
error = -ENODEV; error = -ENODEV;
/* Fall back to PCI_D0 if native PM is not supported */
if (!dev->pm_cap) if (error && !dev->pm_cap) /* Fall back to PCI_D0 */
dev->current_state = PCI_D0; dev->current_state = PCI_D0;
}
return error; return error;
} }
@ -1575,7 +1571,7 @@ void pci_pme_active(struct pci_dev *dev, bool enable)
{ {
u16 pmcsr; u16 pmcsr;
if (!dev->pm_cap) if (!dev->pme_support)
return; return;
pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr); pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr);
@ -1924,6 +1920,7 @@ void pci_pm_init(struct pci_dev *dev)
dev->wakeup_prepared = false; dev->wakeup_prepared = false;
dev->pm_cap = 0; dev->pm_cap = 0;
dev->pme_support = 0;
/* find PCI PM capability in list */ /* find PCI PM capability in list */
pm = pci_find_capability(dev, PCI_CAP_ID_PM); pm = pci_find_capability(dev, PCI_CAP_ID_PM);
@ -1975,8 +1972,6 @@ void pci_pm_init(struct pci_dev *dev)
device_set_wakeup_capable(&dev->dev, true); device_set_wakeup_capable(&dev->dev, true);
/* Disable the PME# generation functionality */ /* Disable the PME# generation functionality */
pci_pme_active(dev, false); pci_pme_active(dev, false);
} else {
dev->pme_support = 0;
} }
} }