ip5xxx_battery_get_voltage_max
return ip5xxx_battery_get_voltage_max(ip5xxx, &val->intval);
ret = ip5xxx_battery_get_voltage_max(ip5xxx, &vmax);
ret = ip5xxx_battery_get_voltage_max(ip5xxx, &vmax);
ret = ip5xxx_battery_get_voltage_max(ip5xxx, &vmax);