- ak4396_write(chip, AK4396_CONTROL_1, AK4396_DIF_24_MSB);
- ak4396_write(chip, AK4396_CONTROL_2, value);
- ak4396_write(chip, AK4396_CONTROL_1, AK4396_DIF_24_MSB | AK4396_RSTN);
+ if (value != data->ak4396_regs[AK4396_CONTROL_2]) {
+ ak4396_write(chip, AK4396_CONTROL_1,
+ AK4396_DIF_24_MSB);
+ ak4396_write(chip, AK4396_CONTROL_2, value);
+ ak4396_write(chip, AK4396_CONTROL_1,
+ AK4396_DIF_24_MSB | AK4396_RSTN);
+ }
+}
+
+static void update_ak4396_volume(struct oxygen *chip)
+{
+ ak4396_write_cached(chip, AK4396_LCH_ATT, chip->dac_volume[0]);
+ ak4396_write_cached(chip, AK4396_RCH_ATT, chip->dac_volume[1]);