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authorBjorn Helgaas <bhelgaas@google.com>2013-04-17 10:43:16 -0600
committerBjorn Helgaas <bhelgaas@google.com>2013-04-17 10:43:16 -0600
commit42c34707f9d24ef159cce87e4353babcf2b417a6 (patch)
treed7f94610311cd59885b8bcfec6d36bde93ccf22d /drivers/pci
parent723ec4d06cb2eed481436cfe008f5f63c45e88fd (diff)
parentffaddbe8f925a4f41eecb31e7fe69a9bdb6e2e59 (diff)
downloadlinux-42c34707f9d24ef159cce87e4353babcf2b417a6.tar.bz2
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()
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/pci.c17
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index f0ef3997ed3b..a899d8bb190d 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -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);
if (!error)
pci_update_current_state(dev, state);
- /* Fall back to PCI_D0 if native PM is not supported */
- if (!dev->pm_cap)
- dev->current_state = PCI_D0;
- } else {
+ } else
error = -ENODEV;
- /* Fall back to PCI_D0 if native PM is not supported */
- if (!dev->pm_cap)
- dev->current_state = PCI_D0;
- }
+
+ if (error && !dev->pm_cap) /* Fall back to PCI_D0 */
+ dev->current_state = PCI_D0;
return error;
}
@@ -1575,7 +1571,7 @@ void pci_pme_active(struct pci_dev *dev, bool enable)
{
u16 pmcsr;
- if (!dev->pm_cap)
+ if (!dev->pme_support)
return;
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->pm_cap = 0;
+ dev->pme_support = 0;
/* find PCI PM capability in list */
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);
/* Disable the PME# generation functionality */
pci_pme_active(dev, false);
- } else {
- dev->pme_support = 0;
}
}