regulator_register_notifier
ret = regulator_register_notifier(data->reg, &data->nb);
ret = regulator_register_notifier(info->vref, &info->nb);
ret = regulator_register_notifier(host->supply.vmmc,
ret = regulator_register_notifier(rdev->supply, &rdev->supply_fwd_nb);
EXPORT_SYMBOL_GPL(regulator_register_notifier);
ret = regulator_register_notifier(regulator, nb);
ret = regulator_register_notifier(reg, &supply->nb);
int regulator_register_notifier(struct regulator *regulator,