static struct regulator_ops lp872x_ldo_ops = {
        .list_voltage = regulator_list_voltage_table,
+       .map_voltage = regulator_map_voltage_ascend,
        .set_voltage_sel = regulator_set_voltage_sel_regmap,
        .get_voltage_sel = regulator_get_voltage_sel_regmap,
        .enable = regulator_enable_regmap,
 
 static struct regulator_ops lp8720_buck_ops = {
        .list_voltage = regulator_list_voltage_table,
+       .map_voltage = regulator_map_voltage_ascend,
        .set_voltage_sel = lp872x_buck_set_voltage_sel,
        .get_voltage_sel = lp872x_buck_get_voltage_sel,
        .enable = regulator_enable_regmap,
 
 static struct regulator_ops lp8725_buck_ops = {
        .list_voltage = regulator_list_voltage_table,
+       .map_voltage = regulator_map_voltage_ascend,
        .set_voltage_sel = lp872x_buck_set_voltage_sel,
        .get_voltage_sel = lp872x_buck_get_voltage_sel,
        .enable = regulator_enable_regmap,