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| author |   Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-05-08 13:55:22 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-05-12 18:46:47 +0400 |
| commit | 697e85bc6a9aa44ecd73392586fe9cfd7e0467ba (patch) | |
| tree | c07e5c212d9eed90f1d80bc5b923755a5f6888ea /include/linux/regmap.h | |
| parent | Linux 3.10-rc1 (diff) | |
| download | linux-dev-697e85bc6a9aa44ecd73392586fe9cfd7e0467ba.tar.xz linux-dev-697e85bc6a9aa44ecd73392586fe9cfd7e0467ba.zip | |
regmap: Add support for discarding parts of the register cache
Allow drivers to discard parts of the register cache, for example if part
of the hardware has been reset.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/linux/regmap.h')
| -rw-r--r-- | include/linux/regmap.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 02d84e24b7c2..5067ee94eb92 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -394,6 +394,8 @@ bool regmap_can_raw_write(struct regmap *map); int regcache_sync(struct regmap *map); int regcache_sync_region(struct regmap *map, unsigned int min, unsigned int max); +int regcache_drop_region(struct regmap *map, unsigned int min, + unsigned int max); void regcache_cache_only(struct regmap *map, bool enable); void regcache_cache_bypass(struct regmap *map, bool enable); void regcache_mark_dirty(struct regmap *map); @@ -562,6 +564,13 @@ static inline int regcache_sync_region(struct regmap *map, unsigned int min, return -EINVAL; } +static inline int regcache_drop_region(struct regmap *map, unsigned int min, + unsigned int max) +{ + WARN_ONCE(1, "regmap API is disabled"); + return -EINVAL; +} + static inline void regcache_cache_only(struct regmap *map, bool enable) { WARN_ONCE(1, "regmap API is disabled"); |