R14_AGC23
ret = regmap_write_bits(dev->regmap, R14_AGC23, 0x1f, utmp2);
ret = regmap_write_bits(dev->regmap, R14_AGC23, 0x40, 0x00);
ret = regmap_write_bits(dev->regmap, R14_AGC23, 0x40, 0x40);