linux/drivers/base/power/power.h
Cornelia Huck ffa6a7054d Driver core: Fix device_move() vs. dpm list ordering, v2
dpm_list currently relies on the fact that child devices will
be registered after their parents to get a correct suspend
order. Using device_move() however destroys this assumption, as
an already registered device may be moved under a newly registered
one.

This patch adds a new argument to device_move(), allowing callers
to specify how dpm_list should be adapted.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:38:26 -07:00

58 lines
1.3 KiB
C

static inline void device_pm_init(struct device *dev)
{
dev->power.status = DPM_ON;
}
#ifdef CONFIG_PM_SLEEP
/*
* main.c
*/
extern struct list_head dpm_list; /* The active device list */
static inline struct device *to_device(struct list_head *entry)
{
return container_of(entry, struct device, power.entry);
}
extern void device_pm_add(struct device *);
extern void device_pm_remove(struct device *);
extern void device_pm_move_before(struct device *, struct device *);
extern void device_pm_move_after(struct device *, struct device *);
extern void device_pm_move_last(struct device *);
#else /* CONFIG_PM_SLEEP */
static inline void device_pm_add(struct device *dev) {}
static inline void device_pm_remove(struct device *dev) {}
static inline void device_pm_move_before(struct device *deva,
struct device *devb) {}
static inline void device_pm_move_after(struct device *deva,
struct device *devb) {}
static inline void device_pm_move_last(struct device *dev) {}
#endif
#ifdef CONFIG_PM
/*
* sysfs.c
*/
extern int dpm_sysfs_add(struct device *);
extern void dpm_sysfs_remove(struct device *);
#else /* CONFIG_PM */
static inline int dpm_sysfs_add(struct device *dev)
{
return 0;
}
static inline void dpm_sysfs_remove(struct device *dev)
{
}
#endif