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ASoC: tlv320aic3x: Add delay after power on and register sync

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When the codec is powered on, it's registers are in reset state as the
power off will do a soft reset of the codec.

After the register sync we need to add delay to remove the pop-noise on
stream start.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Peter Ujfalusi 2016-12-23 11:21:11 +02:00 committed by Mark Brown
parent 63c3194b82
commit 03303da524
1 changed files with 6 additions and 0 deletions
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6
sound/soc/codecs/tlv320aic3x.c
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@ -1393,6 +1393,12 @@ static int aic3x_set_power(struct snd_soc_codec *codec, int power)
snd_soc_write(codec, AIC3X_PLL_PROGC_REG, pll_c);
snd_soc_write(codec, AIC3X_PLL_PROGD_REG, pll_d);
}
/*
* Delay is needed to reduce pop-noise after syncing back the
* registers
*/
mdelay(50);
} else {
/*
* Do soft reset to this codec instance in order to clear