diff options
Diffstat (limited to 'include/linux/pm_domain.h')
| -rw-r--r-- | include/linux/pm_domain.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index ba4ced38efae..49cd8890b873 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -19,6 +19,8 @@ /* Defines used for the flags field in the struct generic_pm_domain */ #define GENPD_FLAG_PM_CLK (1U << 0) /* PM domain uses PM clk */ +#define GENPD_MAX_NUM_STATES 8 /* Number of possible low power states */ + enum gpd_status { GPD_STATE_ACTIVE = 0, /* PM domain is active */ GPD_STATE_POWER_OFF, /* PM domain is off */ @@ -37,6 +39,11 @@ struct gpd_dev_ops { bool (*active_wakeup)(struct device *dev); }; +struct genpd_power_state { + s64 power_off_latency_ns; + s64 power_on_latency_ns; +}; + struct generic_pm_domain { struct dev_pm_domain domain; /* PM domain operations */ struct list_head gpd_list_node; /* Node in the global PM domains list */ @@ -54,9 +61,7 @@ struct generic_pm_domain { unsigned int prepared_count; /* Suspend counter of prepared devices */ bool suspend_power_off; /* Power status before system suspend */ int (*power_off)(struct generic_pm_domain *domain); - s64 power_off_latency_ns; int (*power_on)(struct generic_pm_domain *domain); - s64 power_on_latency_ns; struct gpd_dev_ops dev_ops; s64 max_off_time_ns; /* Maximum allowed "suspended" time. */ bool max_off_time_changed; @@ -66,6 +71,10 @@ struct generic_pm_domain { void (*detach_dev)(struct generic_pm_domain *domain, struct device *dev); unsigned int flags; /* Bit field of configs for genpd */ + struct genpd_power_state states[GENPD_MAX_NUM_STATES]; + unsigned int state_count; /* number of states */ + unsigned int state_idx; /* state that genpd will go to when off */ + }; static inline struct generic_pm_domain *pd_to_genpd(struct dev_pm_domain *pd) @@ -240,12 +249,15 @@ static inline int of_genpd_add_provider_onecell(struct device_node *np, #ifdef CONFIG_PM extern int dev_pm_domain_attach(struct device *dev, bool power_on); extern void dev_pm_domain_detach(struct device *dev, bool power_off); +extern void dev_pm_domain_set(struct device *dev, struct dev_pm_domain *pd); #else static inline int dev_pm_domain_attach(struct device *dev, bool power_on) { return -ENODEV; } static inline void dev_pm_domain_detach(struct device *dev, bool power_off) {} +static inline void dev_pm_domain_set(struct device *dev, + struct dev_pm_domain *pd) {} #endif #endif /* _LINUX_PM_DOMAIN_H */ |
