The driver did not have a mute function. The amplifier was brought out of shutdown mode (hard-mute) once for ever in probe(), which was causing clicks and pops when altering the I2C register configuration later.
This adds the digital_mute() function. The amplifier unmute in probe() was removed.
Signed-off-by: Petr Kulhavy petr@barix.com Tested-by: Petr Kulhavy petr@barix.com --- sound/soc/codecs/tas571x.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-)
diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c index 2a63069..431dffa 100644 --- a/sound/soc/codecs/tas571x.c +++ b/sound/soc/codecs/tas571x.c @@ -171,6 +171,23 @@ static int tas571x_hw_params(struct snd_pcm_substream *substream, TAS571X_SDI_FMT_MASK, val); }
+static int tas571x_mute(struct snd_soc_dai *dai, int mute) +{ + struct snd_soc_codec *codec = dai->codec; + u8 sysctl2; + int ret; + + sysctl2 = mute ? TAS571X_SYS_CTRL_2_SDN_MASK : 0; + + ret = snd_soc_update_bits(codec, + TAS571X_SYS_CTRL_2_REG, + TAS571X_SYS_CTRL_2_SDN_MASK, + sysctl2); + usleep_range(1000, 2000); + + return ret; +} + static int tas571x_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { @@ -218,6 +235,7 @@ static int tas571x_set_bias_level(struct snd_soc_codec *codec, static const struct snd_soc_dai_ops tas571x_dai_ops = { .set_fmt = tas571x_set_dai_fmt, .hw_params = tas571x_hw_params, + .digital_mute = tas571x_mute, };
static const char *const tas5711_supply_names[] = { @@ -448,10 +466,6 @@ static int tas571x_i2c_probe(struct i2c_client *client, if (ret) return ret;
- ret = regmap_update_bits(priv->regmap, TAS571X_SYS_CTRL_2_REG, - TAS571X_SYS_CTRL_2_SDN_MASK, 0); - if (ret) - return ret;
memcpy(&priv->codec_driver, &tas571x_codec, sizeof(priv->codec_driver)); priv->codec_driver.controls = priv->chip->controls;