diff options
Diffstat (limited to 'include/linux/reset.h')
-rw-r--r-- | include/linux/reset.h | 161 |
1 files changed, 99 insertions, 62 deletions
diff --git a/include/linux/reset.h b/include/linux/reset.h index 514ddf003efc..99296af98f81 100644 --- a/include/linux/reset.h +++ b/include/linux/reset.h @@ -25,6 +25,33 @@ struct reset_control_bulk_data { struct reset_control *rstc; }; +#define RESET_CONTROL_FLAGS_BIT_SHARED BIT(0) /* not exclusive */ +#define RESET_CONTROL_FLAGS_BIT_OPTIONAL BIT(1) +#define RESET_CONTROL_FLAGS_BIT_ACQUIRED BIT(2) /* iff exclusive, not released */ + +/** + * enum reset_control_flags - Flags that can be passed to the reset_control_get functions + * to determine the type of reset control. + * These values cannot be OR'd. + * + * @RESET_CONTROL_EXCLUSIVE: exclusive, acquired, + * @RESET_CONTROL_EXCLUSIVE_RELEASED: exclusive, released, + * @RESET_CONTROL_SHARED: shared + * @RESET_CONTROL_OPTIONAL_EXCLUSIVE: optional, exclusive, acquired + * @RESET_CONTROL_OPTIONAL_EXCLUSIVE_RELEASED: optional, exclusive, released + * @RESET_CONTROL_OPTIONAL_SHARED: optional, shared + */ +enum reset_control_flags { + RESET_CONTROL_EXCLUSIVE = RESET_CONTROL_FLAGS_BIT_ACQUIRED, + RESET_CONTROL_EXCLUSIVE_RELEASED = 0, + RESET_CONTROL_SHARED = RESET_CONTROL_FLAGS_BIT_SHARED, + RESET_CONTROL_OPTIONAL_EXCLUSIVE = RESET_CONTROL_FLAGS_BIT_OPTIONAL | + RESET_CONTROL_FLAGS_BIT_ACQUIRED, + RESET_CONTROL_OPTIONAL_EXCLUSIVE_RELEASED = RESET_CONTROL_FLAGS_BIT_OPTIONAL, + RESET_CONTROL_OPTIONAL_SHARED = RESET_CONTROL_FLAGS_BIT_OPTIONAL | + RESET_CONTROL_FLAGS_BIT_SHARED, +}; + #ifdef CONFIG_RESET_CONTROLLER int reset_control_reset(struct reset_control *rstc); @@ -42,30 +69,25 @@ int reset_control_bulk_acquire(int num_rstcs, struct reset_control_bulk_data *rs void reset_control_bulk_release(int num_rstcs, struct reset_control_bulk_data *rstcs); struct reset_control *__of_reset_control_get(struct device_node *node, - const char *id, int index, bool shared, - bool optional, bool acquired); + const char *id, int index, enum reset_control_flags flags); struct reset_control *__reset_control_get(struct device *dev, const char *id, - int index, bool shared, - bool optional, bool acquired); + int index, enum reset_control_flags flags); void reset_control_put(struct reset_control *rstc); int __reset_control_bulk_get(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs, - bool shared, bool optional, bool acquired); + enum reset_control_flags flags); void reset_control_bulk_put(int num_rstcs, struct reset_control_bulk_data *rstcs); int __device_reset(struct device *dev, bool optional); struct reset_control *__devm_reset_control_get(struct device *dev, - const char *id, int index, bool shared, - bool optional, bool acquired); + const char *id, int index, enum reset_control_flags flags); int __devm_reset_control_bulk_get(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs, - bool shared, bool optional, bool acquired); + enum reset_control_flags flags); struct reset_control *devm_reset_control_array_get(struct device *dev, - bool shared, bool optional); -struct reset_control *of_reset_control_array_get(struct device_node *np, - bool shared, bool optional, - bool acquired); + enum reset_control_flags flags); +struct reset_control *of_reset_control_array_get(struct device_node *np, enum reset_control_flags); int reset_control_get_count(struct device *dev); @@ -116,17 +138,19 @@ static inline int __device_reset(struct device *dev, bool optional) static inline struct reset_control *__of_reset_control_get( struct device_node *node, - const char *id, int index, bool shared, - bool optional, bool acquired) + const char *id, int index, enum reset_control_flags flags) { + bool optional = flags & RESET_CONTROL_FLAGS_BIT_OPTIONAL; + return optional ? NULL : ERR_PTR(-ENOTSUPP); } static inline struct reset_control *__reset_control_get( struct device *dev, const char *id, - int index, bool shared, bool optional, - bool acquired) + int index, enum reset_control_flags flags) { + bool optional = flags & RESET_CONTROL_FLAGS_BIT_OPTIONAL; + return optional ? NULL : ERR_PTR(-ENOTSUPP); } @@ -162,8 +186,10 @@ reset_control_bulk_release(int num_rstcs, struct reset_control_bulk_data *rstcs) static inline int __reset_control_bulk_get(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs, - bool shared, bool optional, bool acquired) + enum reset_control_flags flags) { + bool optional = flags & RESET_CONTROL_FLAGS_BIT_OPTIONAL; + return optional ? 0 : -EOPNOTSUPP; } @@ -174,30 +200,36 @@ reset_control_bulk_put(int num_rstcs, struct reset_control_bulk_data *rstcs) static inline struct reset_control *__devm_reset_control_get( struct device *dev, const char *id, - int index, bool shared, bool optional, - bool acquired) + int index, enum reset_control_flags flags) { + bool optional = flags & RESET_CONTROL_FLAGS_BIT_OPTIONAL; + return optional ? NULL : ERR_PTR(-ENOTSUPP); } static inline int __devm_reset_control_bulk_get(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs, - bool shared, bool optional, bool acquired) + enum reset_control_flags flags) { + bool optional = flags & RESET_CONTROL_FLAGS_BIT_OPTIONAL; + return optional ? 0 : -EOPNOTSUPP; } static inline struct reset_control * -devm_reset_control_array_get(struct device *dev, bool shared, bool optional) +devm_reset_control_array_get(struct device *dev, enum reset_control_flags flags) { + bool optional = flags & RESET_CONTROL_FLAGS_BIT_OPTIONAL; + return optional ? NULL : ERR_PTR(-ENOTSUPP); } static inline struct reset_control * -of_reset_control_array_get(struct device_node *np, bool shared, bool optional, - bool acquired) +of_reset_control_array_get(struct device_node *np, enum reset_control_flags flags) { + bool optional = flags & RESET_CONTROL_FLAGS_BIT_OPTIONAL; + return optional ? NULL : ERR_PTR(-ENOTSUPP); } @@ -236,7 +268,7 @@ static inline int device_reset_optional(struct device *dev) static inline struct reset_control * __must_check reset_control_get_exclusive(struct device *dev, const char *id) { - return __reset_control_get(dev, id, 0, false, false, true); + return __reset_control_get(dev, id, 0, RESET_CONTROL_EXCLUSIVE); } /** @@ -253,7 +285,7 @@ static inline int __must_check reset_control_bulk_get_exclusive(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs) { - return __reset_control_bulk_get(dev, num_rstcs, rstcs, false, false, true); + return __reset_control_bulk_get(dev, num_rstcs, rstcs, RESET_CONTROL_EXCLUSIVE); } /** @@ -274,7 +306,7 @@ static inline struct reset_control * __must_check reset_control_get_exclusive_released(struct device *dev, const char *id) { - return __reset_control_get(dev, id, 0, false, false, false); + return __reset_control_get(dev, id, 0, RESET_CONTROL_EXCLUSIVE_RELEASED); } /** @@ -295,7 +327,7 @@ static inline int __must_check reset_control_bulk_get_exclusive_released(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs) { - return __reset_control_bulk_get(dev, num_rstcs, rstcs, false, false, false); + return __reset_control_bulk_get(dev, num_rstcs, rstcs, RESET_CONTROL_EXCLUSIVE_RELEASED); } /** @@ -316,7 +348,8 @@ static inline int __must_check reset_control_bulk_get_optional_exclusive_released(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs) { - return __reset_control_bulk_get(dev, num_rstcs, rstcs, false, true, false); + return __reset_control_bulk_get(dev, num_rstcs, rstcs, + RESET_CONTROL_OPTIONAL_EXCLUSIVE_RELEASED); } /** @@ -344,7 +377,7 @@ reset_control_bulk_get_optional_exclusive_released(struct device *dev, int num_r static inline struct reset_control *reset_control_get_shared( struct device *dev, const char *id) { - return __reset_control_get(dev, id, 0, true, false, false); + return __reset_control_get(dev, id, 0, RESET_CONTROL_SHARED); } /** @@ -361,7 +394,7 @@ static inline int __must_check reset_control_bulk_get_shared(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs) { - return __reset_control_bulk_get(dev, num_rstcs, rstcs, true, false, false); + return __reset_control_bulk_get(dev, num_rstcs, rstcs, RESET_CONTROL_SHARED); } /** @@ -378,7 +411,7 @@ reset_control_bulk_get_shared(struct device *dev, int num_rstcs, static inline struct reset_control *reset_control_get_optional_exclusive( struct device *dev, const char *id) { - return __reset_control_get(dev, id, 0, false, true, true); + return __reset_control_get(dev, id, 0, RESET_CONTROL_OPTIONAL_EXCLUSIVE); } /** @@ -398,7 +431,7 @@ static inline int __must_check reset_control_bulk_get_optional_exclusive(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs) { - return __reset_control_bulk_get(dev, num_rstcs, rstcs, false, true, true); + return __reset_control_bulk_get(dev, num_rstcs, rstcs, RESET_CONTROL_OPTIONAL_EXCLUSIVE); } /** @@ -415,7 +448,7 @@ reset_control_bulk_get_optional_exclusive(struct device *dev, int num_rstcs, static inline struct reset_control *reset_control_get_optional_shared( struct device *dev, const char *id) { - return __reset_control_get(dev, id, 0, true, true, false); + return __reset_control_get(dev, id, 0, RESET_CONTROL_OPTIONAL_SHARED); } /** @@ -435,7 +468,7 @@ static inline int __must_check reset_control_bulk_get_optional_shared(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs) { - return __reset_control_bulk_get(dev, num_rstcs, rstcs, true, true, false); + return __reset_control_bulk_get(dev, num_rstcs, rstcs, RESET_CONTROL_OPTIONAL_SHARED); } /** @@ -451,7 +484,7 @@ reset_control_bulk_get_optional_shared(struct device *dev, int num_rstcs, static inline struct reset_control *of_reset_control_get_exclusive( struct device_node *node, const char *id) { - return __of_reset_control_get(node, id, 0, false, false, true); + return __of_reset_control_get(node, id, 0, RESET_CONTROL_EXCLUSIVE); } /** @@ -471,7 +504,7 @@ static inline struct reset_control *of_reset_control_get_exclusive( static inline struct reset_control *of_reset_control_get_optional_exclusive( struct device_node *node, const char *id) { - return __of_reset_control_get(node, id, 0, false, true, true); + return __of_reset_control_get(node, id, 0, RESET_CONTROL_OPTIONAL_EXCLUSIVE); } /** @@ -496,7 +529,7 @@ static inline struct reset_control *of_reset_control_get_optional_exclusive( static inline struct reset_control *of_reset_control_get_shared( struct device_node *node, const char *id) { - return __of_reset_control_get(node, id, 0, true, false, false); + return __of_reset_control_get(node, id, 0, RESET_CONTROL_SHARED); } /** @@ -513,7 +546,7 @@ static inline struct reset_control *of_reset_control_get_shared( static inline struct reset_control *of_reset_control_get_exclusive_by_index( struct device_node *node, int index) { - return __of_reset_control_get(node, NULL, index, false, false, true); + return __of_reset_control_get(node, NULL, index, RESET_CONTROL_EXCLUSIVE); } /** @@ -541,7 +574,7 @@ static inline struct reset_control *of_reset_control_get_exclusive_by_index( static inline struct reset_control *of_reset_control_get_shared_by_index( struct device_node *node, int index) { - return __of_reset_control_get(node, NULL, index, true, false, false); + return __of_reset_control_get(node, NULL, index, RESET_CONTROL_SHARED); } /** @@ -560,7 +593,7 @@ static inline struct reset_control * __must_check devm_reset_control_get_exclusive(struct device *dev, const char *id) { - return __devm_reset_control_get(dev, id, 0, false, false, true); + return __devm_reset_control_get(dev, id, 0, RESET_CONTROL_EXCLUSIVE); } /** @@ -580,7 +613,8 @@ static inline int __must_check devm_reset_control_bulk_get_exclusive(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs) { - return __devm_reset_control_bulk_get(dev, num_rstcs, rstcs, false, false, true); + return __devm_reset_control_bulk_get(dev, num_rstcs, rstcs, + RESET_CONTROL_EXCLUSIVE); } /** @@ -599,7 +633,7 @@ static inline struct reset_control * __must_check devm_reset_control_get_exclusive_released(struct device *dev, const char *id) { - return __devm_reset_control_get(dev, id, 0, false, false, false); + return __devm_reset_control_get(dev, id, 0, RESET_CONTROL_EXCLUSIVE_RELEASED); } /** @@ -619,7 +653,8 @@ static inline int __must_check devm_reset_control_bulk_get_exclusive_released(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs) { - return __devm_reset_control_bulk_get(dev, num_rstcs, rstcs, false, false, false); + return __devm_reset_control_bulk_get(dev, num_rstcs, rstcs, + RESET_CONTROL_EXCLUSIVE_RELEASED); } /** @@ -638,7 +673,7 @@ static inline struct reset_control * __must_check devm_reset_control_get_optional_exclusive_released(struct device *dev, const char *id) { - return __devm_reset_control_get(dev, id, 0, false, true, false); + return __devm_reset_control_get(dev, id, 0, RESET_CONTROL_OPTIONAL_EXCLUSIVE_RELEASED); } /** @@ -658,7 +693,8 @@ static inline int __must_check devm_reset_control_bulk_get_optional_exclusive_released(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs) { - return __devm_reset_control_bulk_get(dev, num_rstcs, rstcs, false, true, false); + return __devm_reset_control_bulk_get(dev, num_rstcs, rstcs, + RESET_CONTROL_OPTIONAL_EXCLUSIVE_RELEASED); } /** @@ -673,7 +709,7 @@ devm_reset_control_bulk_get_optional_exclusive_released(struct device *dev, int static inline struct reset_control *devm_reset_control_get_shared( struct device *dev, const char *id) { - return __devm_reset_control_get(dev, id, 0, true, false, false); + return __devm_reset_control_get(dev, id, 0, RESET_CONTROL_SHARED); } /** @@ -693,7 +729,7 @@ static inline int __must_check devm_reset_control_bulk_get_shared(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs) { - return __devm_reset_control_bulk_get(dev, num_rstcs, rstcs, true, false, false); + return __devm_reset_control_bulk_get(dev, num_rstcs, rstcs, RESET_CONTROL_SHARED); } /** @@ -711,7 +747,7 @@ devm_reset_control_bulk_get_shared(struct device *dev, int num_rstcs, static inline struct reset_control *devm_reset_control_get_optional_exclusive( struct device *dev, const char *id) { - return __devm_reset_control_get(dev, id, 0, false, true, true); + return __devm_reset_control_get(dev, id, 0, RESET_CONTROL_OPTIONAL_EXCLUSIVE); } /** @@ -731,7 +767,8 @@ static inline int __must_check devm_reset_control_bulk_get_optional_exclusive(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs) { - return __devm_reset_control_bulk_get(dev, num_rstcs, rstcs, false, true, true); + return __devm_reset_control_bulk_get(dev, num_rstcs, rstcs, + RESET_CONTROL_OPTIONAL_EXCLUSIVE); } /** @@ -749,7 +786,7 @@ devm_reset_control_bulk_get_optional_exclusive(struct device *dev, int num_rstcs static inline struct reset_control *devm_reset_control_get_optional_shared( struct device *dev, const char *id) { - return __devm_reset_control_get(dev, id, 0, true, true, false); + return __devm_reset_control_get(dev, id, 0, RESET_CONTROL_OPTIONAL_SHARED); } /** @@ -769,7 +806,7 @@ static inline int __must_check devm_reset_control_bulk_get_optional_shared(struct device *dev, int num_rstcs, struct reset_control_bulk_data *rstcs) { - return __devm_reset_control_bulk_get(dev, num_rstcs, rstcs, true, true, false); + return __devm_reset_control_bulk_get(dev, num_rstcs, rstcs, RESET_CONTROL_OPTIONAL_SHARED); } /** @@ -787,7 +824,7 @@ devm_reset_control_bulk_get_optional_shared(struct device *dev, int num_rstcs, static inline struct reset_control * devm_reset_control_get_exclusive_by_index(struct device *dev, int index) { - return __devm_reset_control_get(dev, NULL, index, false, false, true); + return __devm_reset_control_get(dev, NULL, index, RESET_CONTROL_EXCLUSIVE); } /** @@ -803,7 +840,7 @@ devm_reset_control_get_exclusive_by_index(struct device *dev, int index) static inline struct reset_control * devm_reset_control_get_shared_by_index(struct device *dev, int index) { - return __devm_reset_control_get(dev, NULL, index, true, false, false); + return __devm_reset_control_get(dev, NULL, index, RESET_CONTROL_SHARED); } /* @@ -851,54 +888,54 @@ static inline struct reset_control *devm_reset_control_get_by_index( static inline struct reset_control * devm_reset_control_array_get_exclusive(struct device *dev) { - return devm_reset_control_array_get(dev, false, false); + return devm_reset_control_array_get(dev, RESET_CONTROL_EXCLUSIVE); } static inline struct reset_control * devm_reset_control_array_get_shared(struct device *dev) { - return devm_reset_control_array_get(dev, true, false); + return devm_reset_control_array_get(dev, RESET_CONTROL_SHARED); } static inline struct reset_control * devm_reset_control_array_get_optional_exclusive(struct device *dev) { - return devm_reset_control_array_get(dev, false, true); + return devm_reset_control_array_get(dev, RESET_CONTROL_OPTIONAL_EXCLUSIVE); } static inline struct reset_control * devm_reset_control_array_get_optional_shared(struct device *dev) { - return devm_reset_control_array_get(dev, true, true); + return devm_reset_control_array_get(dev, RESET_CONTROL_OPTIONAL_SHARED); } static inline struct reset_control * of_reset_control_array_get_exclusive(struct device_node *node) { - return of_reset_control_array_get(node, false, false, true); + return of_reset_control_array_get(node, RESET_CONTROL_EXCLUSIVE); } static inline struct reset_control * of_reset_control_array_get_exclusive_released(struct device_node *node) { - return of_reset_control_array_get(node, false, false, false); + return of_reset_control_array_get(node, RESET_CONTROL_EXCLUSIVE_RELEASED); } static inline struct reset_control * of_reset_control_array_get_shared(struct device_node *node) { - return of_reset_control_array_get(node, true, false, true); + return of_reset_control_array_get(node, RESET_CONTROL_SHARED); } static inline struct reset_control * of_reset_control_array_get_optional_exclusive(struct device_node *node) { - return of_reset_control_array_get(node, false, true, true); + return of_reset_control_array_get(node, RESET_CONTROL_OPTIONAL_EXCLUSIVE); } static inline struct reset_control * of_reset_control_array_get_optional_shared(struct device_node *node) { - return of_reset_control_array_get(node, true, true, true); + return of_reset_control_array_get(node, RESET_CONTROL_OPTIONAL_SHARED); } #endif |