regmap: Allow drivers to reinitialise the register cache at runtime

}

EXPORT_SYMBOL_GPL(regmap_init);

/**

 * regmap_reinit_cache(): Reinitialise the current register cache

 *

 * @map: Register map to operate on.

 * @config: New configuration.  Only the cache data will be used.

 *

 * Discard any existing register cache for the map and initialize a

 * new cache.  This can be used to restore the cache to defaults or to

 * update the cache configuration to reflect runtime discovery of the

 * hardware.

 */

int regmap_reinit_cache(struct regmap *map, const struct regmap_config *config)

{

	int ret;

	mutex_lock(&map->lock);

	regcache_exit(map);

	map->max_register = config->max_register;

	map->writeable_reg = config->writeable_reg;

	map->readable_reg = config->readable_reg;

	map->volatile_reg = config->volatile_reg;

	map->precious_reg = config->precious_reg;

	map->cache_type = config->cache_type;

	ret = regcache_init(map, config);

	mutex_unlock(&map->lock);

	return ret;

}

/**

 * regmap_exit(): Free a previously allocated register map

 */

			       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);