diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/regmap/regcache.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 179f222..e2b172b 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -240,6 +240,24 @@ int regcache_sync(struct regmap *map) } EXPORT_SYMBOL_GPL(regcache_sync); +/** + * regcache_cache_only: Put a register map into cache only mode + * + * @map: map to configure + * @cache_only: flag if changes should be written to the hardware + * + * When a register map is marked as cache only writes to the register + * map API will only update the register cache, they will not cause + * any hardware changes. This is useful for allowing portions of + * drivers to act as though the device were functioning as normal when + * it is disabled for power saving reasons. + */ +void regcache_cache_only(struct regmap *map, bool enable) +{ + map->cache_only = enable; +} +EXPORT_SYMBOL_GPL(regcache_cache_only); + bool regcache_set_val(void *base, unsigned int idx, unsigned int val, unsigned int word_size) { |
