PM: Update kerneldoc comments in drivers/base/power/main.c
The kerneldoc comments in drivers/base/power/main.c are generally outdated and some of them don't describe the functions very accurately. Update them and standardize the format to use spaces instead of tabs. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Alan Stern <stern@rowland.harvard.edu>
This commit is contained in:
Rafael J. Wysocki
Родитель
9d62ec6ca7
Коммит
20d652d7d1
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@ -50,7 +50,7 @@ static DEFINE_MUTEX(dpm_list_mtx);
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static bool transition_started;
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/**
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* device_pm_init - Initialize the PM-related part of a device object
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* device_pm_init - Initialize the PM-related part of a device object.
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* @dev: Device object being initialized.
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*/
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void device_pm_init(struct device *dev)
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@ -60,7 +60,7 @@ void device_pm_init(struct device *dev)
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}
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/**
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* device_pm_lock - lock the list of active devices used by the PM core
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* device_pm_lock - Lock the list of active devices used by the PM core.
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*/
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void device_pm_lock(void)
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{
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@ -68,7 +68,7 @@ void device_pm_lock(void)
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}
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/**
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* device_pm_unlock - unlock the list of active devices used by the PM core
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* device_pm_unlock - Unlock the list of active devices used by the PM core.
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*/
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void device_pm_unlock(void)
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{
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@ -76,8 +76,8 @@ void device_pm_unlock(void)
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}
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/**
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* device_pm_add - add a device to the list of active devices
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* @dev: Device to be added to the list
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* device_pm_add - Add a device to the PM core's list of active devices.
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* @dev: Device to add to the list.
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*/
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void device_pm_add(struct device *dev)
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{
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@ -103,10 +103,8 @@ void device_pm_add(struct device *dev)
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}
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/**
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* device_pm_remove - remove a device from the list of active devices
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* @dev: Device to be removed from the list
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*
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* This function also removes the device's PM-related sysfs attributes.
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* device_pm_remove - Remove a device from the PM core's list of active devices.
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* @dev: Device to be removed from the list.
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*/
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void device_pm_remove(struct device *dev)
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{
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@ -120,9 +118,9 @@ void device_pm_remove(struct device *dev)
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}
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/**
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* device_pm_move_before - move device in dpm_list
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* @deva: Device to move in dpm_list
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* @devb: Device @deva should come before
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* device_pm_move_before - Move device in the PM core's list of active devices.
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* @deva: Device to move in dpm_list.
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* @devb: Device @deva should come before.
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*/
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void device_pm_move_before(struct device *deva, struct device *devb)
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{
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@ -136,9 +134,9 @@ void device_pm_move_before(struct device *deva, struct device *devb)
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}
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/**
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* device_pm_move_after - move device in dpm_list
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* @deva: Device to move in dpm_list
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* @devb: Device @deva should come after
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* device_pm_move_after - Move device in the PM core's list of active devices.
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* @deva: Device to move in dpm_list.
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* @devb: Device @deva should come after.
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*/
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void device_pm_move_after(struct device *deva, struct device *devb)
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{
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@ -152,8 +150,8 @@ void device_pm_move_after(struct device *deva, struct device *devb)
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}
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/**
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* device_pm_move_last - move device to end of dpm_list
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* @dev: Device to move in dpm_list
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* device_pm_move_last - Move device to end of the PM core's list of devices.
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* @dev: Device to move in dpm_list.
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*/
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void device_pm_move_last(struct device *dev)
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{
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@ -164,10 +162,10 @@ void device_pm_move_last(struct device *dev)
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}
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/**
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* pm_op - execute the PM operation appropiate for given PM event
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* @dev: Device.
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* @ops: PM operations to choose from.
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* @state: PM transition of the system being carried out.
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* pm_op - Execute the PM operation appropriate for given PM event.
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* @dev: Device to handle.
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* @ops: PM operations to choose from.
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* @state: PM transition of the system being carried out.
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*/
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static int pm_op(struct device *dev,
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const struct dev_pm_ops *ops,
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@ -225,13 +223,13 @@ static int pm_op(struct device *dev,
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}
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/**
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* pm_noirq_op - execute the PM operation appropiate for given PM event
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* @dev: Device.
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* @ops: PM operations to choose from.
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* @state: PM transition of the system being carried out.
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* pm_noirq_op - Execute the PM operation appropriate for given PM event.
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* @dev: Device to handle.
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* @ops: PM operations to choose from.
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* @state: PM transition of the system being carried out.
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*
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* The operation is executed with interrupts disabled by the only remaining
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* functional CPU in the system.
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* The driver of @dev will not receive interrupts while this function is being
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* executed.
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*/
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static int pm_noirq_op(struct device *dev,
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const struct dev_pm_ops *ops,
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@ -329,11 +327,12 @@ static void pm_dev_err(struct device *dev, pm_message_t state, char *info,
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/*------------------------- Resume routines -------------------------*/
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/**
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* device_resume_noirq - Power on one device (early resume).
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* @dev: Device.
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* @state: PM transition of the system being carried out.
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* device_resume_noirq - Execute an "early resume" callback for given device.
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* @dev: Device to handle.
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* @state: PM transition of the system being carried out.
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*
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* Must be called with interrupts disabled.
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* The driver of @dev will not receive interrupts while this function is being
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* executed.
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*/
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static int device_resume_noirq(struct device *dev, pm_message_t state)
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{
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@ -355,14 +354,11 @@ static int device_resume_noirq(struct device *dev, pm_message_t state)
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}
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/**
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* dpm_resume_noirq - Power on all regular (non-sysdev) devices.
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* @state: PM transition of the system being carried out.
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* dpm_resume_noirq - Execute "early resume" callbacks for non-sysdev devices.
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* @state: PM transition of the system being carried out.
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*
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* Call the "noirq" resume handlers for all devices marked as
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* DPM_OFF_IRQ and enable device drivers to receive interrupts.
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*
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* Must be called under dpm_list_mtx. Device drivers should not receive
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* interrupts while it's being executed.
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* Call the "noirq" resume handlers for all devices marked as DPM_OFF_IRQ and
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* enable device drivers to receive interrupts.
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*/
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void dpm_resume_noirq(pm_message_t state)
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{
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@ -384,9 +380,9 @@ void dpm_resume_noirq(pm_message_t state)
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EXPORT_SYMBOL_GPL(dpm_resume_noirq);
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/**
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* device_resume - Restore state for one device.
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* @dev: Device.
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* @state: PM transition of the system being carried out.
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* device_resume - Execute "resume" callbacks for given device.
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* @dev: Device to handle.
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* @state: PM transition of the system being carried out.
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*/
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static int device_resume(struct device *dev, pm_message_t state)
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{
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@ -435,11 +431,11 @@ static int device_resume(struct device *dev, pm_message_t state)
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}
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/**
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* dpm_resume - Resume every device.
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* @state: PM transition of the system being carried out.
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* dpm_resume - Execute "resume" callbacks for non-sysdev devices.
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* @state: PM transition of the system being carried out.
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*
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* Execute the appropriate "resume" callback for all devices the status of
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* which indicates that they are inactive.
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* Execute the appropriate "resume" callback for all devices whose status
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* indicates that they are suspended.
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*/
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static void dpm_resume(pm_message_t state)
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{
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@ -476,9 +472,9 @@ static void dpm_resume(pm_message_t state)
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}
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/**
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* device_complete - Complete a PM transition for given device
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* @dev: Device.
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* @state: PM transition of the system being carried out.
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* device_complete - Complete a PM transition for given device.
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* @dev: Device to handle.
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* @state: PM transition of the system being carried out.
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*/
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static void device_complete(struct device *dev, pm_message_t state)
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{
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@ -503,11 +499,11 @@ static void device_complete(struct device *dev, pm_message_t state)
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}
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/**
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* dpm_complete - Complete a PM transition for all devices.
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* @state: PM transition of the system being carried out.
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* dpm_complete - Complete a PM transition for all non-sysdev devices.
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* @state: PM transition of the system being carried out.
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*
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* Execute the ->complete() callbacks for all devices that are not marked
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* as DPM_ON.
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* Execute the ->complete() callbacks for all devices whose PM status is not
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* DPM_ON (this allows new devices to be registered).
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*/
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static void dpm_complete(pm_message_t state)
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{
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@ -537,11 +533,11 @@ static void dpm_complete(pm_message_t state)
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}
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/**
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* dpm_resume_end - Restore state of each device in system.
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* @state: PM transition of the system being carried out.
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* dpm_resume_end - Execute "resume" callbacks and complete system transition.
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* @state: PM transition of the system being carried out.
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*
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* Resume all the devices, unlock them all, and allow new
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* devices to be registered once again.
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* Execute "resume" callbacks for all devices and complete the PM transition of
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* the system.
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*/
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void dpm_resume_end(pm_message_t state)
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{
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@ -555,9 +551,11 @@ EXPORT_SYMBOL_GPL(dpm_resume_end);
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/*------------------------- Suspend routines -------------------------*/
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/**
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* resume_event - return a PM message representing the resume event
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* corresponding to given sleep state.
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* @sleep_state: PM message representing a sleep state.
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* resume_event - Return a "resume" message for given "suspend" sleep state.
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* @sleep_state: PM message representing a sleep state.
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*
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* Return a PM message representing the resume event corresponding to given
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* sleep state.
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*/
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static pm_message_t resume_event(pm_message_t sleep_state)
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{
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@ -574,11 +572,12 @@ static pm_message_t resume_event(pm_message_t sleep_state)
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}
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/**
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* device_suspend_noirq - Shut down one device (late suspend).
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* @dev: Device.
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* @state: PM transition of the system being carried out.
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* device_suspend_noirq - Execute a "late suspend" callback for given device.
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* @dev: Device to handle.
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* @state: PM transition of the system being carried out.
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*
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* This is called with interrupts off and only a single CPU running.
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* The driver of @dev will not receive interrupts while this function is being
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* executed.
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*/
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static int device_suspend_noirq(struct device *dev, pm_message_t state)
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{
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@ -595,13 +594,11 @@ static int device_suspend_noirq(struct device *dev, pm_message_t state)
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}
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/**
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* dpm_suspend_noirq - Power down all regular (non-sysdev) devices.
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* @state: PM transition of the system being carried out.
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* dpm_suspend_noirq - Execute "late suspend" callbacks for non-sysdev devices.
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* @state: PM transition of the system being carried out.
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*
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* Prevent device drivers from receiving interrupts and call the "noirq"
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* suspend handlers.
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*
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* Must be called under dpm_list_mtx.
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* Prevent device drivers from receiving interrupts and call the "noirq" suspend
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* handlers for all non-sysdev devices.
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*/
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int dpm_suspend_noirq(pm_message_t state)
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{
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@ -626,9 +623,9 @@ int dpm_suspend_noirq(pm_message_t state)
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EXPORT_SYMBOL_GPL(dpm_suspend_noirq);
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/**
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* device_suspend - Save state of one device.
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* @dev: Device.
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* @state: PM transition of the system being carried out.
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* device_suspend - Execute "suspend" callbacks for given device.
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* @dev: Device to handle.
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* @state: PM transition of the system being carried out.
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*/
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static int device_suspend(struct device *dev, pm_message_t state)
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{
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@ -675,10 +672,8 @@ static int device_suspend(struct device *dev, pm_message_t state)
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}
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/**
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* dpm_suspend - Suspend every device.
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* @state: PM transition of the system being carried out.
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*
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* Execute the appropriate "suspend" callbacks for all devices.
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* dpm_suspend - Execute "suspend" callbacks for all non-sysdev devices.
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* @state: PM transition of the system being carried out.
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*/
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static int dpm_suspend(pm_message_t state)
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{
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@ -712,9 +707,12 @@ static int dpm_suspend(pm_message_t state)
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}
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/**
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* device_prepare - Execute the ->prepare() callback(s) for given device.
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* @dev: Device.
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* @state: PM transition of the system being carried out.
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* device_prepare - Prepare a device for system power transition.
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* @dev: Device to handle.
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* @state: PM transition of the system being carried out.
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*
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* Execute the ->prepare() callback(s) for given device. No new children of the
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* device may be registered after this function has returned.
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*/
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static int device_prepare(struct device *dev, pm_message_t state)
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{
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@ -750,10 +748,10 @@ static int device_prepare(struct device *dev, pm_message_t state)
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}
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/**
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* dpm_prepare - Prepare all devices for a PM transition.
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* @state: PM transition of the system being carried out.
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* dpm_prepare - Prepare all non-sysdev devices for a system PM transition.
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* @state: PM transition of the system being carried out.
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*
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* Execute the ->prepare() callback for all devices.
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* Execute the ->prepare() callback(s) for all devices.
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*/
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static int dpm_prepare(pm_message_t state)
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{
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@ -804,10 +802,11 @@ static int dpm_prepare(pm_message_t state)
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}
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/**
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* dpm_suspend_start - Save state and stop all devices in system.
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* @state: PM transition of the system being carried out.
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* dpm_suspend_start - Prepare devices for PM transition and suspend them.
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* @state: PM transition of the system being carried out.
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*
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* Prepare and suspend all devices.
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* Prepare all non-sysdev devices for system PM transition and execute "suspend"
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* callbacks for them.
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*/
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int dpm_suspend_start(pm_message_t state)
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{
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