device_pm.c

	}
	return 0;
}
EXPORT_SYMBOL_GPL(acpi_dev_pm_attach);

/**
 * acpi_dev_pm_detach - Remove ACPI power management from the device.
 * @dev: Device to take care of.
 * @power_off: Whether or not to try to remove power from the device.
 *
 * Remove the device from the general ACPI PM domain and remove its wakeup
 * notifier.  If @power_off is set, additionally remove power from the device if
 * possible.
 *
 * Callers must ensure proper synchronization of this function with power
 * management callbacks.
 */
void acpi_dev_pm_detach(struct device *dev, bool power_off)
{
	struct acpi_device *adev = acpi_dev_pm_get_node(dev);

	if (adev && dev->pm_domain == &acpi_general_pm_domain) {
		dev->pm_domain = NULL;
		acpi_remove_pm_notifier(adev, acpi_wakeup_device);
		if (power_off) {
			/*
			 * If the device's PM QoS resume latency limit or flags
			 * have been exposed to user space, they have to be
			 * hidden at this point, so that they don't affect the
			 * choice of the low-power state to put the device into.
			 */
			dev_pm_qos_hide_latency_limit(dev);
			dev_pm_qos_hide_flags(dev);
			__acpi_device_run_wake(adev, false);
			acpi_dev_pm_low_power(dev, adev, ACPI_STATE_S0);
		}
	}
}
EXPORT_SYMBOL_GPL(acpi_dev_pm_detach);
#endif /* CONFIG_PM */