diff options
| author | Rafael J. Wysocki <rjw@sisk.pl> | 2012-08-06 01:44:28 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-09-04 01:36:03 +0200 |
| commit | e91c11b1a7f876c6f056d872eb210734150a1795 (patch) | |
| tree | 7f988ffa41a4a4f04aaad939d1f8b9baf1766d9e /drivers/base | |
| parent | cc7ad4564b1097c916834dc919678867631e7676 (diff) | |
PM: Reorganize device PM initialization
Make the device power management initialization more straightforward
by moving the initialization of common (i.e. used by both runtime PM
and system suspend) fields to a separate routine.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/power/main.c | 7 | ||||
| -rw-r--r-- | drivers/base/power/power.h | 22 |
2 files changed, 17 insertions, 12 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index 0113adc310d..7bd1fe40054 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -57,20 +57,17 @@ static pm_message_t pm_transition; static int async_error; /** - * device_pm_init - Initialize the PM-related part of a device object. + * device_pm_sleep_init - Initialize system suspend-related device fields. * @dev: Device object being initialized. */ -void device_pm_init(struct device *dev) +void device_pm_sleep_init(struct device *dev) { dev->power.is_prepared = false; dev->power.is_suspended = false; init_completion(&dev->power.completion); complete_all(&dev->power.completion); dev->power.wakeup = NULL; - spin_lock_init(&dev->power.lock); - pm_runtime_init(dev); INIT_LIST_HEAD(&dev->power.entry); - dev->power.power_state = PMSG_INVALID; } /** diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h index eeb4bff9505..8a0dcc7f98f 100644 --- a/drivers/base/power/power.h +++ b/drivers/base/power/power.h @@ -1,5 +1,11 @@ #include <linux/pm_qos.h> +static inline void device_pm_init_common(struct device *dev) +{ + spin_lock_init(&dev->power.lock); + dev->power.power_state = PMSG_INVALID; +} + #ifdef CONFIG_PM_RUNTIME extern void pm_runtime_init(struct device *dev); @@ -25,7 +31,7 @@ static inline struct device *to_device(struct list_head *entry) return container_of(entry, struct device, power.entry); } -extern void device_pm_init(struct device *dev); +extern void device_pm_sleep_init(struct device *dev); extern void device_pm_add(struct device *); extern void device_pm_remove(struct device *); extern void device_pm_move_before(struct device *, struct device *); @@ -34,12 +40,7 @@ extern void device_pm_move_last(struct device *); #else /* !CONFIG_PM_SLEEP */ -static inline void device_pm_init(struct device *dev) -{ - spin_lock_init(&dev->power.lock); - dev->power.power_state = PMSG_INVALID; - pm_runtime_init(dev); -} +static inline void device_pm_sleep_init(struct device *dev) {} static inline void device_pm_add(struct device *dev) { @@ -60,6 +61,13 @@ static inline void device_pm_move_last(struct device *dev) {} #endif /* !CONFIG_PM_SLEEP */ +static inline void device_pm_init(struct device *dev) +{ + device_pm_init_common(dev); + device_pm_sleep_init(dev); + pm_runtime_init(dev); +} + #ifdef CONFIG_PM /* |