LP5569_ENABLE
ret = lp55xx_write(chip, LP5569_REG_ENABLE, LP5569_ENABLE);
ret = lp55xx_write(chip, LP5569_REG_ENABLE, LP5569_ENABLE);
ret = lp55xx_write(chip, LP5569_REG_ENABLE, LP5569_ENABLE);
.val = LP5569_ENABLE,