diff options
Diffstat (limited to 'include/linux/opp.h')
| -rw-r--r-- | include/linux/opp.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/include/linux/opp.h b/include/linux/opp.h index 7020e9736fc5..ee94b33080c2 100644 --- a/include/linux/opp.h +++ b/include/linux/opp.h @@ -16,9 +16,14 @@ #include <linux/err.h> #include <linux/cpufreq.h> +#include <linux/notifier.h> struct opp; +enum opp_event { + OPP_EVENT_ADD, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE, +}; + #if defined(CONFIG_PM_OPP) unsigned long opp_get_voltage(struct opp *opp); @@ -40,6 +45,8 @@ int opp_enable(struct device *dev, unsigned long freq); int opp_disable(struct device *dev, unsigned long freq); +struct srcu_notifier_head *opp_get_notifier(struct device *dev); + #else static inline unsigned long opp_get_voltage(struct opp *opp) { @@ -89,7 +96,12 @@ static inline int opp_disable(struct device *dev, unsigned long freq) { return 0; } -#endif /* CONFIG_PM */ + +static inline struct srcu_notifier_head *opp_get_notifier(struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif /* CONFIG_PM_OPP */ #if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP) int opp_init_cpufreq_table(struct device *dev, |