diff options
Diffstat (limited to 'include/linux/pm.h')
| -rw-r--r-- | include/linux/pm.h | 57 |
1 files changed, 51 insertions, 6 deletions
diff --git a/include/linux/pm.h b/include/linux/pm.h index 198b8f9fe05e..8e258c727971 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -26,6 +26,7 @@ #include <linux/spinlock.h> #include <linux/wait.h> #include <linux/timer.h> +#include <linux/completion.h> /* * Callbacks for platform drivers to implement. @@ -214,20 +215,59 @@ struct dev_pm_ops { int (*runtime_idle)(struct device *dev); }; +#ifdef CONFIG_PM_SLEEP +#define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \ + .suspend = suspend_fn, \ + .resume = resume_fn, \ + .freeze = suspend_fn, \ + .thaw = resume_fn, \ + .poweroff = suspend_fn, \ + .restore = resume_fn, +#else +#define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) +#endif + +#ifdef CONFIG_PM_RUNTIME +#define SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \ + .runtime_suspend = suspend_fn, \ + .runtime_resume = resume_fn, \ + .runtime_idle = idle_fn, +#else +#define SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) +#endif + /* * Use this if you want to use the same suspend and resume callbacks for suspend * to RAM and hibernation. */ #define SIMPLE_DEV_PM_OPS(name, suspend_fn, resume_fn) \ const struct dev_pm_ops name = { \ - .suspend = suspend_fn, \ - .resume = resume_fn, \ - .freeze = suspend_fn, \ - .thaw = resume_fn, \ - .poweroff = suspend_fn, \ - .restore = resume_fn, \ + SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \ +} + +/* + * Use this for defining a set of PM operations to be used in all situations + * (sustem suspend, hibernation or runtime PM). + */ +#define UNIVERSAL_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \ +const struct dev_pm_ops name = { \ + SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \ + SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \ } +/* + * Use this for subsystems (bus types, device types, device classes) that don't + * need any special suspend/resume handling in addition to invoking the PM + * callbacks provided by device drivers supporting both the system sleep PM and + * runtime PM, make the pm member point to generic_subsys_pm_ops. + */ +#ifdef CONFIG_PM_OPS +extern struct dev_pm_ops generic_subsys_pm_ops; +#define GENERIC_SUBSYS_PM_OPS (&generic_subsys_pm_ops) +#else +#define GENERIC_SUBSYS_PM_OPS NULL +#endif + /** * PM_EVENT_ messages * @@ -412,9 +452,11 @@ struct dev_pm_info { pm_message_t power_state; unsigned int can_wakeup:1; unsigned int should_wakeup:1; + unsigned async_suspend:1; enum dpm_state status; /* Owned by the PM core */ #ifdef CONFIG_PM_SLEEP struct list_head entry; + struct completion completion; #endif #ifdef CONFIG_PM_RUNTIME struct timer_list suspend_timer; @@ -430,6 +472,7 @@ struct dev_pm_info { unsigned int request_pending:1; unsigned int deferred_resume:1; unsigned int run_wake:1; + unsigned int runtime_auto:1; enum rpm_request request; enum rpm_status runtime_status; int runtime_error; @@ -508,6 +551,7 @@ extern void __suspend_report_result(const char *function, void *fn, int ret); __suspend_report_result(__func__, fn, ret); \ } while (0) +extern void device_pm_wait_for_dev(struct device *sub, struct device *dev); #else /* !CONFIG_PM_SLEEP */ #define device_pm_lock() do {} while (0) @@ -520,6 +564,7 @@ static inline int dpm_suspend_start(pm_message_t state) #define suspend_report_result(fn, ret) do {} while (0) +static inline void device_pm_wait_for_dev(struct device *a, struct device *b) {} #endif /* !CONFIG_PM_SLEEP */ /* How to reorder dpm_list after device_move() */ |