Beispiel #1
0
/**
 * acpi_dev_pm_attach - Prepare device for ACPI power management.
 * @dev: Device to prepare.
 * @power_on: Whether or not to power on the device.
 *
 * If @dev has a valid ACPI handle that has a valid struct acpi_device object
 * attached to it, install a wakeup notification handler for the device and
 * add it to the general ACPI PM domain.  If @power_on is set, the device will
 * be put into the ACPI D0 state before the function returns.
 *
 * This assumes that the @dev's bus type uses generic power management callbacks
 * (or doesn't use any power management callbacks at all).
 *
 * Callers must ensure proper synchronization of this function with power
 * management callbacks.
 */
int acpi_dev_pm_attach(struct device *dev, bool power_on)
{
	struct acpi_device *adev = acpi_dev_pm_get_node(dev);

	if (!adev)
		return -ENODEV;

	if (dev->pm_domain)
		return -EEXIST;

	/*
	 * Only attach the power domain to the first device if the
	 * companion is shared by multiple. This is to prevent doing power
	 * management twice.
	 */
	if (!acpi_device_is_first_physical_node(adev, dev))
		return -EBUSY;

	acpi_add_pm_notifier(adev, acpi_wakeup_device, dev);
	dev_pm_domain_set(dev, &acpi_general_pm_domain);
	if (power_on) {
		acpi_dev_pm_full_power(adev);
		__acpi_device_run_wake(adev, false);
	}
	return 0;
}
/**
 * acpi_dev_pm_attach - Prepare device for ACPI power management.
 * @dev: Device to prepare.
 * @power_on: Whether or not to power on the device.
 *
 * If @dev has a valid ACPI handle that has a valid struct acpi_device object
 * attached to it, install a wakeup notification handler for the device and
 * add it to the general ACPI PM domain.  If @power_on is set, the device will
 * be put into the ACPI D0 state before the function returns.
 *
 * This assumes that the @dev's bus type uses generic power management callbacks
 * (or doesn't use any power management callbacks at all).
 *
 * Callers must ensure proper synchronization of this function with power
 * management callbacks.
 */
int acpi_dev_pm_attach(struct device *dev, bool power_on)
{
	struct acpi_device *adev = ACPI_COMPANION(dev);

	if (!adev)
		return -ENODEV;

	if (dev->pm_domain)
		return -EEXIST;

	/*
	 * Only attach the power domain to the first device if the
	 * companion is shared by multiple. This is to prevent doing power
	 * management twice.
	 */
	if (!acpi_device_is_first_physical_node(adev, dev))
		return -EBUSY;

	acpi_add_pm_notifier(adev, dev, acpi_pm_notify_work_func);
	dev->pm_domain = &acpi_general_pm_domain;
	if (power_on) {
		acpi_dev_pm_full_power(adev);
		acpi_device_wakeup(adev, ACPI_STATE_S0, false);
	}

	return 0;
}
/**
 * acpi_dev_pm_attach - Prepare device for ACPI power management.
 * @dev: Device to prepare.
 * @power_on: Whether or not to power on the device.
 *
 * If @dev has a valid ACPI handle that has a valid struct acpi_device object
 * attached to it, install a wakeup notification handler for the device and
 * add it to the general ACPI PM domain.  If @power_on is set, the device will
 * be put into the ACPI D0 state before the function returns.
 *
 * This assumes that the @dev's bus type uses generic power management callbacks
 * (or doesn't use any power management callbacks at all).
 *
 * Callers must ensure proper synchronization of this function with power
 * management callbacks.
 */
int acpi_dev_pm_attach(struct device *dev, bool power_on)
{
	struct acpi_device *adev = ACPI_COMPANION(dev);

	if (!adev)
		return -ENODEV;

	if (!strcmp(dev_name(dev), "80860F28:00")) {
		dev_info(dev, "Skipping ACPI power domain attach\n");
		return -ENODEV;
	}

	if (dev->pm_domain)
		return -EEXIST;

	acpi_add_pm_notifier(adev, acpi_wakeup_device, dev);
	dev->pm_domain = &acpi_general_pm_domain;
	if (power_on) {
		acpi_dev_pm_full_power(adev);
		__acpi_device_run_wake(adev, false);
	}

	dev->pm_domain->detach = acpi_dev_pm_detach;
	return 0;
}
Beispiel #4
0
/**
 * acpi_dev_pm_attach - Prepare device for ACPI power management.
 * @dev: Device to prepare.
 * @power_on: Whether or not to power on the device.
 *
 * If @dev has a valid ACPI handle that has a valid struct acpi_device object
 * attached to it, install a wakeup notification handler for the device and
 * add it to the general ACPI PM domain.  If @power_on is set, the device will
 * be put into the ACPI D0 state before the function returns.
 *
 * This assumes that the @dev's bus type uses generic power management callbacks
 * (or doesn't use any power management callbacks at all).
 *
 * Callers must ensure proper synchronization of this function with power
 * management callbacks.
 */
int acpi_dev_pm_attach(struct device *dev, bool power_on)
{
	struct acpi_device *adev = acpi_dev_pm_get_node(dev);

	if (!adev)
		return -ENODEV;

	if (dev->pm_domain)
		return -EEXIST;

	acpi_add_pm_notifier(adev, acpi_wakeup_device, dev);
	dev->pm_domain = &acpi_general_pm_domain;
	if (power_on) {
		acpi_dev_pm_full_power(adev);
		__acpi_device_run_wake(adev, false);
	}
	return 0;
}
Beispiel #5
0
/**
 * acpi_dev_pm_attach - Prepare device for ACPI power management.
 * @dev: Device to prepare.
 * @power_on: Whether or not to power on the device.
 *
 * If @dev has a valid ACPI handle that has a valid struct acpi_device object
 * attached to it, install a wakeup notification handler for the device and
 * add it to the general ACPI PM domain.  If @power_on is set, the device will
 * be put into the ACPI D0 state before the function returns.
 *
 * This assumes that the @dev's bus type uses generic power management callbacks
 * (or doesn't use any power management callbacks at all).
 *
 * Callers must ensure proper synchronization of this function with power
 * management callbacks.
 */
int acpi_dev_pm_attach(struct device *dev, bool power_on)
{
	struct acpi_device *adev = ACPI_COMPANION(dev);

	if (!adev)
		return -ENODEV;

	if (dev->pm_domain)
		return -EEXIST;

	acpi_add_pm_notifier(adev, dev, acpi_pm_notify_work_func);
	dev->pm_domain = &acpi_general_pm_domain;
	if (power_on) {
		acpi_dev_pm_full_power(adev);
		acpi_device_wakeup(adev, ACPI_STATE_S0, false);
	}

	return 0;
}
Beispiel #6
0
/**
 * pci_acpi_add_pm_notifier - Register PM notifier for given PCI device.
 * @dev: ACPI device to add the notifier for.
 * @pci_dev: PCI device to check for the PME status if an event is signaled.
 */
acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
				     struct pci_dev *pci_dev)
{
	return acpi_add_pm_notifier(dev, pci_acpi_wake_dev, pci_dev);
}
Beispiel #7
0
/**
 * pci_acpi_add_bus_pm_notifier - Register PM notifier for given PCI bus.
 * @dev: ACPI device to add the notifier for.
 * @pci_bus: PCI bus to walk checking for PME status if an event is signaled.
 */
acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev,
					 struct pci_bus *pci_bus)
{
	return acpi_add_pm_notifier(dev, pci_acpi_wake_bus, pci_bus);
}
Beispiel #8
0
/**
 * pci_acpi_add_bus_pm_notifier - Register PM notifier for root PCI bus.
 * @dev: PCI root bridge ACPI device.
 */
acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev)
{
	return acpi_add_pm_notifier(dev, NULL, pci_acpi_wake_bus);
}