diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 24bb7f5b12e3e..eecb05a0d08c8 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -5758,6 +5758,12 @@ regulator_register(struct device *dev,
 		goto wash;
 	}
 
+	if (regulator_desc->init_cb) {
+		ret = regulator_desc->init_cb(rdev, config);
+		if (ret < 0)
+			goto wash;
+	}
+
 	if ((rdev->supply_name && !rdev->supply) &&
 		(rdev->constraints->always_on ||
 		 rdev->constraints->boot_on)) {
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index f230a472ccd35..d2f4427504f08 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -365,6 +365,8 @@ struct regulator_desc {
 	int (*of_parse_cb)(struct device_node *,
 			    const struct regulator_desc *,
 			    struct regulator_config *);
+	int (*init_cb)(struct regulator_dev *,
+		       struct regulator_config *);
 	int id;
 	unsigned int continuous_voltage_range:1;
 	unsigned n_voltages;