On 6 Dec 2010, at 23:30, Liam Girdwood wrote: > On Mon, 2010-12-06 at 23:09 +0000, Mark Brown wrote: >> >> Sure, but it's fulfiling the same role in the system - it's just that >> these days a lot more CODECs are pulling speaker drivers directly into >> the CODEC die. Mostly these have worked well handled as PGAs so it's >> not been an issue. > In this case as we need to enable the PGA before the driver and disable > the driver before the PGA for pop reduction. Hence the current ordering > needs an addition/refactoring to deal with the newer generation of > CODECs here. Well, what I'm saying is that... >> I'd certainly expect to see it handled the same way from a DAPM >> sequencing point of view as it's fulfilling the same role in the system >> (so in the same slot rather than separately as the patch was doing). Do >> we just need to refactor the existing external widgets to be able to >> exist in either register or GPIO based versions? ...we don't need to change the ordering at all, we've already got a sequence point for this sort of widget we can use. We should just make the existing speaker and headphone widgets be in terms of one, I think. The only reason it's not come up before is that everything so far has been able to power up cleanly without splitting from the PGAs. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
