Commit 03303da5 authored Dec 23, 2016 by Peter Ujfalusi Committed by Mark Brown Dec 31, 2016

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



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>

parent 63c3194b

sound/soc/codecs/tlv320aic3x.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -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