[alsa-devel] [PATCH 7/8] ALSA: pcm: Add card sync_irq field

[Sridharan, Ranjani]

>
> >
> > Thanks for the clarification, Takashi. But just wondering how would one
> pass
> > on the sync_irq when the snd_card is created? Typically in the case of
> the
> > Intel platforms, the card->dev points to the platform device for the
> machine
> > driver that registers the card and the PCI device is the parent of the
> machine
> > drv platform device.
>
> It's completely up to the driver implementation :)
> You can implement the own sync_stop ops if that's easier, too.
>
I think this would make sense in the case of the SOF driver and we'd
probably need to just call synchronize_irq() in the sync_stop() operation.
With this change, we can probably remove the workaround we have to address
the issue we were facing during snd_pcm_period_elapsed().

I can give this a try. We might need to run some stress tests to make sure
it doesn't break anything.

Thanks,
Ranjani