Re: missing sound on kernel-5.15

[Takashi Iwai <tiwai@suse.de>]

On Mon, 29 Aug 2022 20:15:33 +0200,
Takashi Iwai wrote:
> 
> On Mon, 29 Aug 2022 14:16:27 +0200,
> Takashi Iwai wrote:
> > 
> > On Mon, 29 Aug 2022 10:50:58 +0200,
> > chihhao chen wrote:
> > > 
> > > Hi Takashi,
> > > 
> > > Yes.
> > > 
> > > To issue SAMPLING_FREQ_CONTROL USB request two times is root cause of
> > > this issue.
> > 
> > Hm, is it a UAC1 device?  Such a device should work with multiple
> > SAMPLING_FREQ_CONTROL invocations, but some device might be not
> > tolerant or buggy...  The multiple init_sample_rate() invocations may
> > happen with the older kernel under certain situations, so maybe we
> > need a different fix.
> > 
> > How about the patch like below?
> 
> It's missing the clearance for suspend/resume.
> The revised patch is below.

... and after reading the mail again, I noticed that it's all
rubbish, scratch the previous ones.

Have you tested it with the later kernel?  I guess this has been
already addressed.  In the recent kernel, the rate is set per assigned
clock, hence it won't be set up twice unnecessarily.


Takashi