diff options
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index e9c356236d27..0a3d856833fc 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -572,6 +572,10 @@ int pci_set_power_state(struct pci_dev *dev, pci_power_t state) if (!ret) pci_update_current_state(dev); } + /* This device is quirked not to be put into D3, so + don't put it in D3 */ + if (state == PCI_D3hot && (dev->dev_flags & PCI_DEV_FLAGS_NO_D3)) + return 0; error = pci_raw_set_power_state(dev, state); @@ -1123,6 +1127,12 @@ int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable) } /** + * pci_target_state - find an appropriate low power state for a given PCI dev + * @dev: PCI device + * + * Use underlying platform code to find a supported low power state for @dev. + * If the platform can't manage @dev, return the deepest state from which it + * can generate wake events, based on any available PME info. */ pci_power_t pci_target_state(struct pci_dev *dev) { |