Revert "regmap: detach regmap from dev on regmap_exit"

This reverts commit 48dc44f which is
commit 3061e170381af96d1e66799d34264e6414d428a7 upstream.

It was backported incorrectly, a fixed version will be applied later.

Cc: Cosmin Tanislav <[email protected]>
Cc: Mark Brown <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reported-by: Tzung-Bi Shih <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: gregkh

drivers/base/regmap/regmap.c

@@ -652,17 +652,6 @@ int regmap_attach_dev(struct device *dev, struct regmap *map,
 }
 EXPORT_SYMBOL_GPL(regmap_attach_dev);
 
-static int dev_get_regmap_match(struct device *dev, void *res, void *data);
-
-static int regmap_detach_dev(struct device *dev, struct regmap *map)
-{
-	if (!dev)
-		return 0;
-
-	return devres_release(dev, dev_get_regmap_release,
-			      dev_get_regmap_match, (void *)map->name);
-}
-
 static enum regmap_endian regmap_get_reg_endian(const struct regmap_bus *bus,
 					const struct regmap_config *config)
 {
@@ -1513,7 +1502,6 @@ int regmap_reinit_cache(struct regmap *map, const struct regmap_config *config)
 {
 	int ret;
 
-	regmap_detach_dev(map->dev, map);
 	regcache_exit(map);
 	regmap_debugfs_exit(map);