diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-12-03 17:06:20 +0000 |
|---|---|---|
| committer | Lokesh Pathak <lpathak@nvidia.com> | 2012-03-05 07:55:47 -0800 |
| commit | fd572265f6e4d795bff9e059fe6fdbf007f1e705 (patch) | |
| tree | e55dd82a9b98f5e12b9aeb7031412f9eb90973af /include/linux | |
| parent | 65a11acf350177394a96e21919c6fef2551a2cc3 (diff) | |
regmap: Allow drivers to reinitialise the register cache at runtime
Sometimes the register map information may change in ways that drivers can
discover at runtime. For example, new revisions of a device may add new
registers. Support runtime discovery by drivers by allowing the register
cache to be reinitialised with a new function regmap_reinit_cache() which
discards the existing cache and creates a new one.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
(cherry picked from commit bf315173359b2f3b8b8ccca4264815e91f30be12)
Change-Id: I896f9a1f116d1fa43225c1ab63dbf0459e5a6b83
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/87573
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/regmap.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 24560c7d1147..0daf7ea53a62 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -128,6 +128,8 @@ struct regmap *regmap_init_spi(struct spi_device *dev, const struct regmap_config *config); void regmap_exit(struct regmap *map); +int regmap_reinit_cache(struct regmap *map, + const struct regmap_config *config); int regmap_write(struct regmap *map, unsigned int reg, unsigned int val); int regmap_raw_write(struct regmap *map, unsigned int reg, const void *val, size_t val_len); |