diff options
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index f04b9ffe4153..5af941807785 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -304,6 +304,8 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state) return 0; } +int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state) = NULL; + /** * pci_choose_state - Choose the power state of a PCI device * @dev: PCI device to be suspended @@ -316,10 +318,17 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state) pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state) { + int ret; + if (!pci_find_capability(dev, PCI_CAP_ID_PM)) return PCI_D0; - switch (state) { + if (platform_pci_choose_state) { + ret = platform_pci_choose_state(dev, state); + if (ret >= 0) + state = ret; + } + switch (state) { case 0: return PCI_D0; case 3: return PCI_D3hot; default: |