[alsa-devel] ESI Juli@ crash with external clock switch - patch

[Takashi Iwai]

At Fri, 16 Jan 2015 21:36:10 +0100,
Pavel Hofman wrote:
> 
> Dne 16.1.2015 v 18:13 Takashi Iwai napsal(a):
> > OK, I'm going to send a fix series including the relevant correction.
> > Give it a try later.
> 
> Thanks a lot for the patches, the external rate switching on Juli now 
> works perfectly (not tested on Quartet yet). One can tell you are 
> seasoned in kernel development, I would get lost in the synchronization 
> and workqueue facilities.
> 
> >> I am not sure users would want/need to disable a feature which detects
> >> incoming samplerate. IMO if the work thread is running only in the
> >> external clock mode, nothing more is needed.
> >
> > Hm, but you can still see the other attributes of SPDIF input frames,
> > right?  Or all these useless when the clock is set to internal?
> > If so, it'd be easy to add the dynamic turn on/off per the clock
> > mode.
> 
> You are right, that would disable update of other controls informing 
> about incoming SPDIF details. These are useful in internal clock mode 
> too - if the soundcard is master for the spdif chain. A new control 
> would make sense then.

Alright.

> I am leaving for a week, then I will test quartet and the PM features.

There should be no change regarding quartet, also about PM.
The patches doesn't add the PM support to quartet, but rather
robustify only the PM of Juli@ (and ak4113/4114 codec side support).

In anyway, I'm going to merge them once when you confirm them
working.


thanks,

Takashi