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ACPI / PM: Fix device PM kernedoc comments and #ifdefs

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The kerneldoc comments for acpi_pm_device_sleep_state(),
acpi_pm_device_run_wake(), and acpi_pm_device_sleep_wake() are
outdated or otherwise inaccurate and/or don't follow the common
kerneldoc patterns, so fix them.

Additionally, notice that acpi_pm_device_run_wake() should be under
CONFIG_PM_RUNTIME rather than under CONFIG_PM_SLEEP, so fix that too.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Rafael J. Wysocki 2012-10-26 13:40:04 +02:00
parent dea553e3fc
commit bdda27fb98
2 changed files with 30 additions and 31 deletions
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53
drivers/acpi/sleep.c
View File

@ -684,28 +684,21 @@ int acpi_suspend(u32 acpi_state)
#ifdef CONFIG_PM
/**
* acpi_pm_device_sleep_state - return preferred power state of ACPI device
* in the system sleep state given by %acpi_target_sleep_state
* @dev: device to examine; its driver model wakeup flags control
* whether it should be able to wake up the system
* @d_min_p: used to store the upper limit of allowed states range
* @d_max_in: specify the lowest allowed states
* Return value: preferred power state of the device on success, -ENODEV
* (ie. if there's no 'struct acpi_device' for @dev) or -EINVAL on failure
* acpi_pm_device_sleep_state - Get preferred power state of ACPI device.
* @dev: Device whose preferred target power state to return.
* @d_min_p: Location to store the upper limit of the allowed states range.
* @d_max_in: Deepest low-power state to take into consideration.
* Return value: Preferred power state of the device on success, -ENODEV
* (if there's no 'struct acpi_device' for @dev) or -EINVAL on failure
*
* Find the lowest power (highest number) ACPI device power state that
* device @dev can be in while the system is in the sleep state represented
* by %acpi_target_sleep_state. If @wake is nonzero, the device should be
* able to wake up the system from this sleep state. If @d_min_p is set,
* the highest power (lowest number) device power state of @dev allowed
* in this system sleep state is stored at the location pointed to by it.
* Find the lowest power (highest number) ACPI device power state that the
* device can be in while the system is in the sleep state represented
* by %acpi_target_sleep_state. If @d_min_p is set, the highest power (lowest
* number) device power state that @dev can be in for the given system sleep
* state is stored at the location pointed to by it.
*
* The caller must ensure that @dev is valid before using this function.
* The caller is also responsible for figuring out if the device is
* supposed to be able to wake up the system and passing this information
* via @wake.
* The caller must ensure that @dev is valid before using this function.
*/
int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p, int d_max_in)
{
acpi_handle handle = DEVICE_ACPI_HANDLE(dev);
@ -797,14 +790,15 @@ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p, int d_max_in)
EXPORT_SYMBOL(acpi_pm_device_sleep_state);
#endif /* CONFIG_PM */
#ifdef CONFIG_PM_SLEEP
#ifdef CONFIG_PM_RUNTIME
/**
* acpi_pm_device_run_wake - Enable/disable wake-up for given device.
* @phys_dev: Device to enable/disable the platform to wake-up the system for.
* @enable: Whether enable or disable the wake-up functionality.
* acpi_pm_device_run_wake - Enable/disable remote wakeup for given device.
* @phys_dev: Device to enable/disable the platform to wake up.
* @enable: Whether to enable or disable the wakeup functionality.
*
* Find the ACPI device object corresponding to @pci_dev and try to
* enable/disable the GPE associated with it.
* Find the ACPI device object corresponding to @phys_dev and try to
* enable/disable the GPE associated with it, so that it can generate
* wakeup signals for the device in response to external (remote) events.
*/
int acpi_pm_device_run_wake(struct device *phys_dev, bool enable)
{
@ -832,12 +826,13 @@ int acpi_pm_device_run_wake(struct device *phys_dev, bool enable)
return 0;
}
EXPORT_SYMBOL(acpi_pm_device_run_wake);
#endif /* CONFIG_PM_RUNTIME */
#ifdef CONFIG_PM_SLEEP
/**
* acpi_pm_device_sleep_wake - enable or disable the system wake-up
* capability of given device
* @dev: device to handle
* @enable: 'true' - enable, 'false' - disable the wake-up capability
* acpi_pm_device_sleep_wake - Enable or disable device to wake up the system.
* @dev: Device to enable/desible to wake up the system from sleep states.
* @enable: Whether to enable or disable @dev to wake up the system.
*/
int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
{

8
include/acpi/acpi_bus.h
View File

@ -426,14 +426,18 @@ static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m)
}
#endif
#ifdef CONFIG_PM_SLEEP
#ifdef CONFIG_PM_RUNTIME
int acpi_pm_device_run_wake(struct device *, bool);
int acpi_pm_device_sleep_wake(struct device *, bool);
#else
static inline int acpi_pm_device_run_wake(struct device *dev, bool enable)
{
return -ENODEV;
}
#endif
#ifdef CONFIG_PM_SLEEP
int acpi_pm_device_sleep_wake(struct device *, bool);
#else
static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
{
return -ENODEV;