diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 1f4698d724bb..4d7d44a71216 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -4552,6 +4552,37 @@ int regulator_get_voltage(struct regulator *regulator)
 }
 EXPORT_SYMBOL_GPL(regulator_get_voltage);
 
+/**
+ * regulator_get_constraint_voltages - get platform specific constraint voltage,
+ * @regulator: regulator source
+ * @min_uV: Minimum microvolts.
+ * @max_uV: Maximum microvolts.
+ *
+ * This returns the current regulator voltage in uV.
+ *
+ * NOTE: If the regulator is disabled it will return the voltage value. This
+ * function should not be used to determine regulator state.
+ */
+
+int regulator_get_constraint_voltages(struct regulator *regulator,
+	int *min_uV, int *max_uV)
+{
+	struct regulator_dev *rdev = regulator->rdev;
+
+	if (rdev->desc && rdev->desc->fixed_uV && rdev->desc->n_voltages == 1) {
+		*min_uV = rdev->desc->fixed_uV;
+		*max_uV = rdev->desc->fixed_uV;
+		return 0;
+	}
+	if (rdev->constraints) {
+		*min_uV = rdev->constraints->min_uV;
+		*max_uV = rdev->constraints->max_uV;
+		return 0;
+	}
+	return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(regulator_get_constraint_voltages);
+
 /**
  * regulator_set_current_limit - set regulator output current limit
  * @regulator: regulator source
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index b9ce521910a0..dae2c6969051 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -231,6 +231,8 @@ int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV);
 int regulator_set_voltage_time(struct regulator *regulator,
 			       int old_uV, int new_uV);
 int regulator_get_voltage(struct regulator *regulator);
+int regulator_get_constraint_voltages(struct regulator *regulator,
+	int *min_uV, int *max_uV);
 int regulator_sync_voltage(struct regulator *regulator);
 int regulator_set_current_limit(struct regulator *regulator,
 			       int min_uA, int max_uA);