[alsa-devel] [PATCH] ASoC: Consider the codec->active also?when changing bias level

[Mark Brown]

On Tue, Sep 29, 2009 at 09:13:13AM +0300, Peter Ujfalusi wrote:

> I see. So there is no mechanism in place which would keep the serial interface 
> up when there is an ongoing playback/capture regardless of the DAPM routing?

Not in 2.6.31.  Going forward the AIF widgets are the way to deal with
this.

> On the other hand it also make sense to set the codec bias level to ON state, 
> when there is ongoing playback/capture. Or not, not sure about it.

Not really - the digital parts of the system are not generally sensitive
to the quality of their supplies in the way that the analogue parts are.