Re: [PATCH] ALSA: opti9xx: restore snd-miro state after resume

[Takashi Iwai <tiwai@suse.de>]

On Tue, 14 Apr 2026 13:14:11 +0200,
Cássio Gabriel Monteiro Pires wrote:
> 
> On 4/14/26 04:07, Takashi Iwai wrote:
> > On Mon, 13 Apr 2026 21:45:34 +0200,
> > Cássio Gabriel wrote:
> >>
> >> snd-miro has no PM callbacks, so system resume leaves the OPTi
> >> master-control registers and the board-specific ACI mixer state
> >> unrestored.
> >>
> >> Like snd-opti9xx, the driver needs to reprogram the OPTi routing
> >> registers before bringing the codec back. snd-miro also keeps mixer
> >> state in the ACI block, so the codec resume callback alone is not
> >> enough here. Save the ACI mixer state on suspend, reinitialize the
> >> OPTi and ACI state on resume, replay the saved ACI values, and then
> >> resume the WSS codec. Hook the PM handlers into both the ISA and PnP
> >> paths.
> >>
> >> Also initialize miro->card on the ISA path for the existing dev_*()
> >> logging and keep the cached solo-mode value aligned with the value
> >> written to hardware.
> >>
> >> PCM20 radio tuner state remains outside this driver's PM scope.
> >>
> >> Signed-off-by: Cássio Gabriel <cassiogabrielcontato@gmail.com>
> > 
> > As it's no trivial change and we are already in the merge window, I'd
> > postpone this for 7.2.  Or, if this is the very last piece of your
> > whole changes, I can try to put.  Let me know.
> 
> This is not my last ALSA outstanding piece but this is not urgent either,
> so postponing it to 7.2 is fine with me.
> Please defer it to the next cycle if its proper to you.

OK, I expected that ;)  Will review it later.


thanks,

Takashi