diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c
index ab328ec49353..c3ad59ef43dd 100644
--- a/drivers/mfd/twl6040.c
+++ b/drivers/mfd/twl6040.c
@@ -609,6 +609,7 @@ static const struct regmap_config twl6040_regmap_config = {
 	.writeable_reg = twl6040_writeable_reg,
 
 	.cache_type = REGCACHE_RBTREE,
+	.use_single_rw = true,
 };
 
 static const struct regmap_irq twl6040_irqs[] = {