diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c
index e045b7fe557278e68a747c84806274bf3178dd00..0a3bb3aecd97781689ac634d93b6e8c65db04fe3 100644
--- a/drivers/regulator/tps6586x-regulator.c
+++ b/drivers/regulator/tps6586x-regulator.c
@@ -63,11 +63,6 @@ struct tps6586x_regulator {
 	int enable_reg[2];
 };
 
-static inline struct device *to_tps6586x_dev(struct regulator_dev *rdev)
-{
-	return rdev_get_dev(rdev)->parent;
-}
-
 static struct regulator_ops tps6586x_rw_regulator_ops = {
 	.list_voltage = regulator_list_voltage_table,
 	.map_voltage = regulator_map_voltage_ascend,