On Mon, Jun 16, 2008 at 11:36:56PM +0100, Andy Green wrote: > BTW Mark... we use the sideband path for voice data... no *ALSA* device > is opened during that time, but we could do with 50K source impedence to > Vref not 500K which happens shortly after you close an alsa device. How > do you think we should come at that? Keep 50K up while there is any > active analogue routing path open? Or a new ALSA switch, or something else?
ASoC should be holding the codec in full bias whenever there is a complete audio path up so that this is transparent to user space. It's something we're aware of - it should just be a case of moving the bias power managment from the PCM stream code into the DAPM path management.
