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| author | Bjorn Helgaas <bhelgaas@google.com> | 2013-04-17 18:43:16 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-04-17 18:43:16 +0200 |
| commit | 42c34707f9d24ef159cce87e4353babcf2b417a6 (patch) | |
| tree | d7f94610311cd59885b8bcfec6d36bde93ccf22d /drivers/pci | |
| parent | Merge branch 'pci/cleanup' into next (diff) | |
| parent | PCI/PM: Make pci_pme_active() ignore devices without PME support (diff) | |
| download | linux-42c34707f9d24ef159cce87e4353babcf2b417a6.tar.xz linux-42c34707f9d24ef159cce87e4353babcf2b417a6.zip | |
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.c | 17 |
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; } } |