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Merge branch 'pm-timers'

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* pm-timers:
  PM: Do not use the syscore flag for runtime PM
  sh: MTU2: Basic runtime PM support
  sh: CMT: Basic runtime PM support
  sh: TMU: Basic runtime PM support
  PM / Domains: Do not measure start time for "irq safe" devices
  PM / Domains: Move syscore flag from subsys data to struct device
  PM / Domains: Rename the always_on device flag to syscore
  PM / Runtime: Allow helpers to be called by early platform drivers
  PM: Reorganize device PM initialization
  sh: MTU2: Introduce clock events suspend/resume routines
  sh: CMT: Introduce clocksource/clock events suspend/resume routines
  sh: TMU: Introduce clocksource/clock events suspend/resume routines
  timekeeping: Add suspend and resume of clock event devices
  PM / Domains: Add power off/on function for system core suspend stage
  PM / Domains: Introduce simplified power on routine for system resume
This commit is contained in:
Rafael J. Wysocki 2012-09-17 20:25:18 +02:00
commit 00e8b26133
14 changed files with 419 additions and 74 deletions
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8
include/linux/clockchips.h
View file

@ -97,6 +97,8 @@ struct clock_event_device {
void (*broadcast)(const struct cpumask *mask);
void (*set_mode)(enum clock_event_mode mode,
struct clock_event_device *);
void (*suspend)(struct clock_event_device *);
void (*resume)(struct clock_event_device *);
unsigned long min_delta_ticks;
unsigned long max_delta_ticks;
@ -156,6 +158,9 @@ clockevents_calc_mult_shift(struct clock_event_device *ce, u32 freq, u32 minsec)
freq, minsec);
}
extern void clockevents_suspend(void);
extern void clockevents_resume(void);
#ifdef CONFIG_GENERIC_CLOCKEVENTS
extern void clockevents_notify(unsigned long reason, void *arg);
#else
@ -164,6 +169,9 @@ extern void clockevents_notify(unsigned long reason, void *arg);
#else /* CONFIG_GENERIC_CLOCKEVENTS_BUILD */
static inline void clockevents_suspend(void) {}
static inline void clockevents_resume(void) {}
#define clockevents_notify(reason, arg) do { } while (0)
#endif

7
include/linux/device.h
View file

@ -772,6 +772,13 @@ static inline void pm_suspend_ignore_children(struct device *dev, bool enable)
dev->power.ignore_children = enable;
}
static inline void dev_pm_syscore_device(struct device *dev, bool val)
{
#ifdef CONFIG_PM_SLEEP
dev->power.syscore = val;
#endif
}
static inline void device_lock(struct device *dev)
{
mutex_lock(&dev->mutex);

2
include/linux/pm.h
View file

@ -510,12 +510,14 @@ struct dev_pm_info {
bool is_prepared:1; /* Owned by the PM core */
bool is_suspended:1; /* Ditto */
bool ignore_children:1;
bool early_init:1; /* Owned by the PM core */
spinlock_t lock;
#ifdef CONFIG_PM_SLEEP
struct list_head entry;
struct completion completion;
struct wakeup_source *wakeup;
bool wakeup_path:1;
bool syscore:1;
#else
unsigned int should_wakeup:1;
#endif

19
include/linux/pm_domain.h
View file

@ -114,7 +114,6 @@ struct generic_pm_domain_data {
struct mutex lock;
unsigned int refcount;
bool need_restore;
bool always_on;
};
#ifdef CONFIG_PM_GENERIC_DOMAINS
@ -153,7 +152,6 @@ static inline int pm_genpd_of_add_device(struct device_node *genpd_node,
extern int pm_genpd_remove_device(struct generic_pm_domain *genpd,
struct device *dev);
extern void pm_genpd_dev_always_on(struct device *dev, bool val);
extern void pm_genpd_dev_need_restore(struct device *dev, bool val);
extern int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *new_subdomain);
@ -199,7 +197,6 @@ static inline int pm_genpd_remove_device(struct generic_pm_domain *genpd,
{
return -ENOSYS;
}
static inline void pm_genpd_dev_always_on(struct device *dev, bool val) {}
static inline void pm_genpd_dev_need_restore(struct device *dev, bool val) {}
static inline int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *new_sd)
@ -258,4 +255,20 @@ static inline void genpd_queue_power_off_work(struct generic_pm_domain *gpd) {}
static inline void pm_genpd_poweroff_unused(void) {}
#endif
#ifdef CONFIG_PM_GENERIC_DOMAINS_SLEEP
extern void pm_genpd_syscore_switch(struct device *dev, bool suspend);
#else
static inline void pm_genpd_syscore_switch(struct device *dev, bool suspend) {}
#endif
static inline void pm_genpd_syscore_poweroff(struct device *dev)
{
pm_genpd_syscore_switch(dev, true);
}
static inline void pm_genpd_syscore_poweron(struct device *dev)
{
pm_genpd_syscore_switch(dev, false);
}
#endif /* _LINUX_PM_DOMAIN_H */