diff options
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 54858838f09..bdf66b500f2 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -86,7 +86,7 @@ enum pcie_bus_config_types pcie_bus_config = PCIE_BUS_TUNE_OFF; * the dfl or actual value as it sees fit. Don't forget this is * measured in 32-bit words, not bytes. */ -u8 pci_dfl_cache_line_size __devinitdata = L1_CACHE_BYTES >> 2; +u8 pci_dfl_cache_line_size = L1_CACHE_BYTES >> 2; u8 pci_cache_line_size; /* @@ -1858,6 +1858,38 @@ bool pci_dev_run_wake(struct pci_dev *dev) } EXPORT_SYMBOL_GPL(pci_dev_run_wake); +void pci_config_pm_runtime_get(struct pci_dev *pdev) +{ + struct device *dev = &pdev->dev; + struct device *parent = dev->parent; + + if (parent) + pm_runtime_get_sync(parent); + pm_runtime_get_noresume(dev); + /* + * pdev->current_state is set to PCI_D3cold during suspending, + * so wait until suspending completes + */ + pm_runtime_barrier(dev); + /* + * Only need to resume devices in D3cold, because config + * registers are still accessible for devices suspended but + * not in D3cold. + */ + if (pdev->current_state == PCI_D3cold) + pm_runtime_resume(dev); +} + +void pci_config_pm_runtime_put(struct pci_dev *pdev) +{ + struct device *dev = &pdev->dev; + struct device *parent = dev->parent; + + pm_runtime_put(dev); + if (parent) + pm_runtime_put_sync(parent); +} + /** * pci_pm_init - Initialize PM functions of given PCI device * @dev: PCI device to handle. @@ -3825,7 +3857,7 @@ static int __init pci_resource_alignment_sysfs_init(void) late_initcall(pci_resource_alignment_sysfs_init); -static void __devinit pci_no_domains(void) +static void pci_no_domains(void) { #ifdef CONFIG_PCI_DOMAINS pci_domains_supported = 0; |