On Fri, 2010-12-10 at 13:26 +0200, Peter Ujfalusi wrote: > If the following scenario has been followed: > 1. Enable analog bypass > amixer sset 'Analog Left Bypass' on > amixer sset 'Analog Right Bypass' on > > 2. Start playback > aplay -fdat -d3 /dev/zero > > After the playback stopped (3 sec), and the soc timeout (5 sec), > the digital parts of the codec will remain powered up. > This means that the DAI clocks are continue to run, the > oscillator remain operational, etc. > > Use the SND_SOC_DAPM_POST_PMD widget to get notification > about the stopped stream, and power down the digital > part of the codec. > If the analog bypass is enabled, than the codec will remain in > BIAS_ON level, and things will work correctly. > In case, if the bypass is disabled, than the codec will > fall to BIAS_STANDBY than to BIAS_OFF level, as it used > to. > > The digital part of DAC33 is initialized at every stream start > (DAPM_PRE:PRE_PMU event), so subsequent streams (within 5 sec) > will have working DAI. > When the codec is coming out from BIAS_OFF, the full power-up > sequence followed by the same DAPM_PRE widget event will power up > the digital part. > > Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxx> > Acked-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx> > --- Applied. Thanks Liam -- Freelance Developer, SlimLogic Ltd ASoC and Voltage Regulator Maintainer. http://www.slimlogic.co.uk _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
