diff options
| -rw-r--r-- | drivers/core/regmap.c | 2 | ||||
| -rw-r--r-- | include/regmap.h | 3 |
2 files changed, 3 insertions, 2 deletions
diff --git a/drivers/core/regmap.c b/drivers/core/regmap.c index d1d12eef38..e9e55c9d16 100644 --- a/drivers/core/regmap.c +++ b/drivers/core/regmap.c @@ -462,5 +462,5 @@ int regmap_update_bits(struct regmap *map, uint offset, uint mask, uint val) reg &= ~mask; - return regmap_write(map, offset, reg | val); + return regmap_write(map, offset, reg | (val & mask)); } diff --git a/include/regmap.h b/include/regmap.h index 0854200a9c..9ada1af5ef 100644 --- a/include/regmap.h +++ b/include/regmap.h @@ -295,7 +295,8 @@ int regmap_raw_read_range(struct regmap *map, uint range_num, uint offset, * @map: The map returned by regmap_init_mem*() * @offset: Offset of the memory * @mask: Mask to apply to the read value - * @val: Value to apply to the value to write + * @val: Value to OR with the read value after masking. Note that any + * bits set in @val which are not set in @mask are ignored * Return: 0 if OK, -ve on error */ int regmap_update_bits(struct regmap *map, uint offset, uint mask, uint val); |