diff options
Diffstat (limited to 'drivers/base/regmap/internal.h')
| -rw-r--r-- | drivers/base/regmap/internal.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index a98493cde5c3..615f5581d5db 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -17,6 +17,7 @@ #include <linux/fs.h> struct regmap; +struct regcache_ops; struct regmap_format { size_t buf_size; @@ -49,6 +50,40 @@ struct regmap { u8 read_flag_mask; u8 write_flag_mask; + + /* regcache specific members */ + const struct regcache_ops *cache_ops; + enum regcache_type cache_type; + + /* number of bytes in reg_defaults_raw */ + unsigned int cache_size_raw; + /* number of bytes per word in reg_defaults_raw */ + unsigned int cache_word_size; + /* number of entries in reg_defaults */ + unsigned int num_reg_defaults; + /* number of entries in reg_defaults_raw */ + unsigned int num_reg_defaults_raw; + + /* if set, only the cache is modified not the HW */ + unsigned int cache_only:1; + /* if set, only the HW is modified not the cache */ + unsigned int cache_bypass:1; + /* if set, remember to free reg_defaults_raw */ + unsigned int cache_free:1; + + struct reg_default *reg_defaults; + const void *reg_defaults_raw; + void *cache; +}; + +struct regcache_ops { + const char *name; + enum regcache_type type; + int (*init)(struct regmap *map); + int (*exit)(struct regmap *map); + int (*read)(struct regmap *map, unsigned int reg, unsigned int *value); + int (*write)(struct regmap *map, unsigned int reg, unsigned int value); + int (*sync)(struct regmap *map); }; bool regmap_writeable(struct regmap *map, unsigned int reg); @@ -66,4 +101,21 @@ static inline void regmap_debugfs_init(struct regmap *map) { } static inline void regmap_debugfs_exit(struct regmap *map) { } #endif +/* regcache core declarations */ +int regcache_init(struct regmap *map); +void regcache_exit(struct regmap *map); +int regcache_read(struct regmap *map, + unsigned int reg, unsigned int *value); +int regcache_write(struct regmap *map, + unsigned int reg, unsigned int value); +int regcache_sync(struct regmap *map); + +unsigned int regcache_get_val(const void *base, unsigned int idx, + unsigned int word_size); +bool regcache_set_val(void *base, unsigned int idx, + unsigned int val, unsigned int word_size); +int regcache_lookup_reg(struct regmap *map, unsigned int reg); +int regcache_insert_reg(struct regmap *map, unsigned int reg, + unsigned int val); + #endif |