return 0;
}
-static int acpi_pci_find_root_bridge(struct device *dev, acpi_handle *handle)
-{
- int num;
- unsigned int seg, bus;
-
- /*
- * The string should be the same as root bridge's name
- * Please look at 'pci_scan_bus_parented'
- */
- num = sscanf(dev_name(dev), "pci%04x:%02x", &seg, &bus);
- if (num != 2)
- return -ENODEV;
- *handle = acpi_get_pci_rootbridge_handle(seg, bus);
- if (!*handle)
- return -ENODEV;
- return 0;
-}
-
static void pci_acpi_setup(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
acpi_handle handle = ACPI_HANDLE(dev);
struct acpi_device *adev;
- acpi_status status;
- acpi_handle dummy;
- /*
- * Evaluate and parse _PRT, if exists. This code allows parsing of
- * _PRT objects within the scope of non-bridge devices. Note that
- * _PRTs within the scope of a PCI bridge assume the bridge's
- * subordinate bus number.
- *
- * TBD: Can _PRTs exist within the scope of non-bridge PCI devices?
- */
- status = acpi_get_handle(handle, METHOD_NAME__PRT, &dummy);
- if (ACPI_SUCCESS(status)) {
- unsigned char bus;
-
- bus = pci_dev->subordinate ?
- pci_dev->subordinate->number : pci_dev->bus->number;
- acpi_pci_irq_add_prt(handle, pci_domain_nr(pci_dev->bus), bus);
- }
-
- acpi_power_resource_register_device(dev, handle);
if (acpi_bus_get_device(handle, &adev) || !adev->wakeup.flags.valid)
return;
static void pci_acpi_cleanup(struct device *dev)
{
- struct pci_dev *pci_dev = to_pci_dev(dev);
acpi_handle handle = ACPI_HANDLE(dev);
struct acpi_device *adev;
device_set_run_wake(dev, false);
pci_acpi_remove_pm_notifier(adev);
}
- acpi_power_resource_unregister_device(dev, handle);
-
- if (pci_dev->subordinate)
- acpi_pci_irq_del_prt(pci_domain_nr(pci_dev->bus),
- pci_dev->subordinate->number);
}
static struct acpi_bus_type acpi_pci_bus = {
.bus = &pci_bus_type,
.find_device = acpi_pci_find_device,
- .find_bridge = acpi_pci_find_root_bridge,
.setup = pci_acpi_setup,
.cleanup = pci_acpi_cleanup,
};