regulator_set_voltage_time
ret = regulator_set_voltage_time(soc_reg, imx6_soc_volt[0], imx6_soc_volt[num - 1]);
ret = regulator_set_voltage_time(pu_reg, imx6_soc_volt[0], imx6_soc_volt[num - 1]);
ret = regulator_set_voltage_time(arm_reg, min_volt, max_volt);
ret = regulator_set_voltage_time(reg, uV[i].min, uV[i].max);
EXPORT_SYMBOL_GPL(regulator_set_voltage_time);
int regulator_set_voltage_time(struct regulator *regulator,