AD7768_REG_INTERFACE_FORMAT
return regmap_write(st->regmap, AD7768_REG_INTERFACE_FORMAT, 0x01);
ret = regmap_write(st->regmap, AD7768_REG_INTERFACE_FORMAT, 0x01);
regmap_reg_range(AD7768_REG_INTERFACE_FORMAT, AD7768_REG_GAIN_LO),
regmap_reg_range(AD7768_REG_INTERFACE_FORMAT, AD7768_REG_GPIO_WRITE),