[PCI_D3hot] = ACPI_STATE_D3,
[PCI_D3cold] = ACPI_STATE_D3
};
+ int error = -EINVAL;
- if (!handle)
- return -ENODEV;
/* If the ACPI device has _EJ0, ignore the device */
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp)))
- return 0;
+ if (!handle || ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp)))
+ return -ENODEV;
switch (state) {
case PCI_D0:
case PCI_D2:
case PCI_D3hot:
case PCI_D3cold:
- return acpi_bus_set_power(handle, state_conv[state]);
+ error = acpi_bus_set_power(handle, state_conv[state]);
}
- return -EINVAL;
+
+ if (!error)
+ dev_printk(KERN_INFO, &dev->dev,
+ "power state changed by ACPI to D%d\n", state);
+
+ return error;
+}
+
+static bool acpi_pci_can_wakeup(struct pci_dev *dev)
+{
+ acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev);
+
+ return handle ? acpi_bus_can_wakeup(handle) : false;
+}
+
+static int acpi_pci_sleep_wake(struct pci_dev *dev, bool enable)
+{
+ int error = acpi_pm_device_sleep_wake(&dev->dev, enable);
+
+ if (!error)
+ dev_printk(KERN_INFO, &dev->dev,
+ "wake-up capability %s by ACPI\n",
+ enable ? "enabled" : "disabled");
+ return error;
}
static struct pci_platform_pm_ops acpi_pci_platform_pm = {
.is_manageable = acpi_pci_power_manageable,
.set_state = acpi_pci_set_power_state,
.choose_state = acpi_pci_choose_state,
+ .can_wakeup = acpi_pci_can_wakeup,
+ .sleep_wake = acpi_pci_sleep_wake,
};
/* ACPI bus type */