The DAC powerdown bit is managed by DAPM. Manually powering down the DAC in the CODEC probe function may cause unnecessary power state transitions which can lead to click and pop noises.
So leave the DAC powerdown bit in its default poweron-reset state and let DAPM do all the management.
Signed-off-by: Lars-Peter Clausen lars@metafoo.de --- sound/soc/codecs/ad193x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c index 387530b..17c9535 100644 --- a/sound/soc/codecs/ad193x.c +++ b/sound/soc/codecs/ad193x.c @@ -333,8 +333,8 @@ static int ad193x_codec_probe(struct snd_soc_codec *codec) regmap_write(ad193x->regmap, AD193X_DAC_CHNL_MUTE, 0x0); /* de-emphasis: 48kHz, powedown dac */ regmap_write(ad193x->regmap, AD193X_DAC_CTRL2, 0x1A); - /* powerdown dac, dac in tdm mode */ - regmap_write(ad193x->regmap, AD193X_DAC_CTRL0, 0x41); + /* dac in tdm mode */ + regmap_write(ad193x->regmap, AD193X_DAC_CTRL0, 0x40); /* high-pass filter enable */ regmap_write(ad193x->regmap, AD193X_ADC_CTRL0, 0x3); /* sata delay=1, adc aux mode */