diff options
| author |   Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2020-05-28 17:45:02 +0200 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2020-05-29 14:00:42 +0100 |
| commit | aa2ff9dbaeddabb5ad166db5f9f1a0580a8bbba8 (patch) | |
| tree | 5c710c63c6e650e003dfd8e6ed088e3149fd984f /include/linux | |
| parent | Linux 5.7-rc1 (diff) | |
| download | wireguard-linux-aa2ff9dbaeddabb5ad166db5f9f1a0580a8bbba8.tar.xz wireguard-linux-aa2ff9dbaeddabb5ad166db5f9f1a0580a8bbba8.zip | |
regmap: provide helpers for simple bit operations
In many instances regmap_update_bits() is used for simple bit setting
and clearing. In these cases the last argument is redundant and we can
hide it with a static inline function.
This adds three new helpers for simple bit operations: set_bits,
clear_bits and test_bits (the last one defined as a regular function).
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20200528154503.26304-2-brgl@bgdev.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/regmap.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 40b07168fd8e..ddf0baff195d 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -1111,6 +1111,21 @@ bool regmap_reg_in_ranges(unsigned int reg, const struct regmap_range *ranges, unsigned int nranges); +static inline int regmap_set_bits(struct regmap *map, + unsigned int reg, unsigned int bits) +{ + return regmap_update_bits_base(map, reg, bits, bits, + NULL, false, false); +} + +static inline int regmap_clear_bits(struct regmap *map, + unsigned int reg, unsigned int bits) +{ + return regmap_update_bits_base(map, reg, bits, 0, NULL, false, false); +} + +int regmap_test_bits(struct regmap *map, unsigned int reg, unsigned int bits); + /** * struct reg_field - Description of an register field * @@ -1410,6 +1425,27 @@ static inline int regmap_update_bits_base(struct regmap *map, unsigned int reg, return -EINVAL; } +static inline int regmap_set_bits(struct regmap *map, + unsigned int reg, unsigned int bits) +{ + WARN_ONCE(1, "regmap API is disabled"); + return -EINVAL; +} + +static inline int regmap_clear_bits(struct regmap *map, + unsigned int reg, unsigned int bits) +{ + WARN_ONCE(1, "regmap API is disabled"); + return -EINVAL; +} + +static inline int regmap_test_bits(struct regmap *map, + unsigned int reg, unsigned int bits) +{ + WARN_ONCE(1, "regmap API is disabled"); + return -EINVAL; +} + static inline int regmap_field_update_bits_base(struct regmap_field *field, unsigned int mask, unsigned int val, bool *change, bool async, bool force) |