regmap: core: Make raw write available to regcache

This allows the cache to sync values directly to the device when stored
in native format and also allows asynchronous I/O.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 2b5851d42dbb..6d409350f50a 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -195,6 +195,9 @@ bool regcache_set_val(struct regmap *map, void *base, unsigned int idx,
                       unsigned int val);
 int regcache_lookup_reg(struct regmap *map, unsigned int reg);
 
+int _regmap_raw_write(struct regmap *map, unsigned int reg,
+                      const void *val, size_t val_len, bool async);
+
 void regmap_async_complete_cb(struct regmap_async *async, int ret);
 
 extern struct regcache_ops regcache_rbtree_ops;