diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pwrseq/consumer.h | 7 | ||||
| -rw-r--r-- | include/linux/pwrseq/provider.h | 8 |
2 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/pwrseq/consumer.h b/include/linux/pwrseq/consumer.h index 16fad5f3e3ab..b69117ad3fa7 100644 --- a/include/linux/pwrseq/consumer.h +++ b/include/linux/pwrseq/consumer.h @@ -25,6 +25,8 @@ int pwrseq_disable(struct pwrseq_desc *desc); struct device *pwrseq_to_device(struct pwrseq_desc *desc); +bool pwrseq_is_controllable(struct pwrseq_desc *desc); + #else /* CONFIG_POWER_SEQUENCING */ static inline struct pwrseq_desc * __must_check @@ -58,6 +60,11 @@ static inline struct device *pwrseq_to_device(struct pwrseq_desc *desc) return NULL; } +static inline bool pwrseq_is_controllable(struct pwrseq_desc *desc) +{ + return false; +} + #endif /* CONFIG_POWER_SEQUENCING */ #endif /* __POWER_SEQUENCING_CONSUMER_H__ */ diff --git a/include/linux/pwrseq/provider.h b/include/linux/pwrseq/provider.h index 33b3d2c2e39d..7285ad94a221 100644 --- a/include/linux/pwrseq/provider.h +++ b/include/linux/pwrseq/provider.h @@ -6,12 +6,15 @@ #ifndef __POWER_SEQUENCING_PROVIDER_H__ #define __POWER_SEQUENCING_PROVIDER_H__ +#include <linux/types.h> + struct device; struct module; struct pwrseq_device; typedef int (*pwrseq_power_state_func)(struct pwrseq_device *); typedef int (*pwrseq_match_func)(struct pwrseq_device *, struct device *); +typedef bool (*pwrseq_is_controllable_func)(struct pwrseq_device *); #define PWRSEQ_NO_MATCH 0 #define PWRSEQ_MATCH_OK 1 @@ -43,11 +46,16 @@ struct pwrseq_unit_data { * the state lock has been released. It's useful for implementing * boot-up delays without blocking other users from powering up * using the same power sequencer. + * @is_controllable: Optional callback checking whether enabling/disabling this + * target actually controls power (for example when the + * controlling GPIO is wired up). If not provided, the + * target's power is assumed to be always controllable. */ struct pwrseq_target_data { const char *name; const struct pwrseq_unit_data *unit; pwrseq_power_state_func post_enable; + pwrseq_is_controllable_func is_controllable; }; /** |