diff options
| -rw-r--r-- | drivers/base/regmap/regmap.c | 15 | ||||
| -rw-r--r-- | include/linux/regmap.h | 1 |
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 65558034318..e09119684c0 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -672,6 +672,21 @@ int regmap_update_bits_check(struct regmap *map, unsigned int reg, } EXPORT_SYMBOL_GPL(regmap_update_bits_check); +/** + * regmap_get_val_bytes(): Report the size of a register value + * + * Report the size of a register value, mainly intended to for use by + * generic infrastructure built on top of regmap. + */ +int regmap_get_val_bytes(struct regmap *map) +{ + if (map->format.format_write) + return -EINVAL; + + return map->format.val_bytes; +} +EXPORT_SYMBOL_GPL(regmap_get_val_bytes); + static int __init regmap_initcall(void) { regmap_debugfs_initcall(); diff --git a/include/linux/regmap.h b/include/linux/regmap.h index eb93921cdd3..089479f892c 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -143,6 +143,7 @@ int regmap_update_bits(struct regmap *map, unsigned int reg, int regmap_update_bits_check(struct regmap *map, unsigned int reg, unsigned int mask, unsigned int val, bool *change); +int regmap_get_val_bytes(struct regmap *map); int regcache_sync(struct regmap *map); void regcache_cache_only(struct regmap *map, bool enable); |