diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 583dd5d7d46b..f20befe1dd8d 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -59,6 +59,7 @@ struct regmap {
 			unsigned long raw_spinlock_flags;
 		};
 	};
+	struct lock_class_key *lock_key;
 	regmap_lock lock;
 	regmap_unlock unlock;
 	void *lock_arg; /* This is passed to lock/unlock functions */
diff --git a/drivers/base/regmap/regcache-maple.c b/drivers/base/regmap/regcache-maple.c
index 0b6c2277128b..fb5761a5ef6e 100644
--- a/drivers/base/regmap/regcache-maple.c
+++ b/drivers/base/regmap/regcache-maple.c
@@ -356,6 +356,9 @@ static int regcache_maple_init(struct regmap *map)
 
 	mt_init(mt);
 
+	if (!mt_external_lock(mt) && map->lock_key)
+		lockdep_set_class_and_subclass(&mt->ma_lock, map->lock_key, 1);
+
 	if (!map->num_reg_defaults)
 		return 0;
 
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 282908ecb49c..71b72b3be375 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -756,6 +756,7 @@ struct regmap *__regmap_init(struct device *dev,
 						   lock_key, lock_name);
 		}
 		map->lock_arg = map;
+		map->lock_key = lock_key;
 	}
 
 	/*