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>
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index bebda14..86923a9 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -129,6 +129,8 @@
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);