Hi Mark, On Thursday 25 November 2010 14:49:08 Mark Brown wrote: > On Thu, Nov 25, 2010 at 03:28:12AM +0100, Laurent Pinchart wrote: > > If the entity is of node type, the power change is distributed to > > all connected entities. For non-nodes it only affects that very > > node. A mutex is used to serialise access to the entity graph. > > ASoC has its own power management stuff which doesn't *quite* map onto > this one as-is. The power determination stuff is essentially identical > (and this is actually nicer) but we have a separate postprocessing stage > that actually applies the changes in a sequence which minimises audible > issues caused by doing things in a bad order (eg, power down a PGA > before you turn off inputs). This is noddy enough to implement, though > - we just need a pre and post run notifications to set up and implement > the changes I think. That sounds feasible. Sakari, you've implemented power management, what do you think about this ? > BTW, I notice you've not CCed the ALSA list, Liam, Takashi or Jaroslav > on any of this - might be good. I've just subscrived to the alsa-devel list. I will make sure to CC it, as well as Liam, Takashi and Jaroslav, on the next version of the patches. Sorry about the missing CC's in these e-mails. -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
