MT6357_ZCD_CON3
regmap_read(priv->regmap, MT6357_ZCD_CON3, &gain);
regmap_update_bits(priv->regmap, MT6357_ZCD_CON3,
regmap_update_bits(priv->regmap, MT6357_ZCD_CON3,
volume_ramp(priv, from, to, 0, 0, MT6357_ZCD_CON3);
MT6357_ZCD_CON3, MT6357_AUD_HS_GAIN_SFT,