diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2015-06-16 08:52:39 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-07-10 11:38:00 +0100 |
| commit | fd4b7286ccc469bf5dde22db6b8fcc455c3c4a66 (patch) | |
| tree | 04b3b7a077e81f1e8036c723963396b62bb91340 /drivers/base/regmap/regmap.c | |
| parent | 7ff0589c7bff4ca31b255ac2028f633f14047762 (diff) | |
regmap: add regmap_write_bits()
regmap_write_bits() is similar to regmap_update_bits(),
but regmap_write_bits() write data to register even though
it is same value.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/base/regmap/regmap.c')
| -rw-r--r-- | drivers/base/regmap/regmap.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 69ec411ce722..d93bb9a8ab98 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -2375,6 +2375,29 @@ int regmap_update_bits(struct regmap *map, unsigned int reg, EXPORT_SYMBOL_GPL(regmap_update_bits); /** + * regmap_write_bits: Perform a read/modify/write cycle on the register map + * + * @map: Register map to update + * @reg: Register to update + * @mask: Bitmask to change + * @val: New value for bitmask + * + * Returns zero for success, a negative number on error. + */ +int regmap_write_bits(struct regmap *map, unsigned int reg, + unsigned int mask, unsigned int val) +{ + int ret; + + map->lock(map->lock_arg); + ret = _regmap_update_bits(map, reg, mask, val, NULL, true); + map->unlock(map->lock_arg); + + return ret; +} +EXPORT_SYMBOL_GPL(regmap_write_bits); + +/** * regmap_update_bits_async: Perform a read/modify/write cycle on the register * map asynchronously * |