diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/regmap.h | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 75f162b60ba1..fd41baccbf3e 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -54,7 +54,14 @@ struct sdw_slave; #define REGMAP_UPSHIFT(s) (-(s)) #define REGMAP_DOWNSHIFT(s) (s) -/* An enum of all the supported cache types */ +/* + * The supported cache types, the default is no cache. Any new caches + * should usually use the maple tree cache unless they specifically + * require that there are never any allocations at runtime and can't + * provide defaults in which case they should use the flat cache. The + * rbtree cache *may* have some performance advantage for very low end + * systems that make heavy use of cache syncs but is mainly legacy. + */ enum regcache_type { REGCACHE_NONE, REGCACHE_RBTREE, @@ -1328,6 +1335,15 @@ static inline int regmap_clear_bits(struct regmap *map, return regmap_update_bits_base(map, reg, bits, 0, NULL, false, false); } +static inline int regmap_assign_bits(struct regmap *map, unsigned int reg, + unsigned int bits, bool value) +{ + if (value) + return regmap_set_bits(map, reg, bits); + else + return regmap_clear_bits(map, reg, bits); +} + int regmap_test_bits(struct regmap *map, unsigned int reg, unsigned int bits); /** @@ -1796,6 +1812,13 @@ static inline int regmap_clear_bits(struct regmap *map, return -EINVAL; } +static inline int regmap_assign_bits(struct regmap *map, unsigned int reg, + unsigned int bits, bool value) +{ + WARN_ONCE(1, "regmap API is disabled"); + return -EINVAL; +} + static inline int regmap_test_bits(struct regmap *map, unsigned int reg, unsigned int bits) { |