[PATCH] ASoC: SOF: Intel: hda: unsolicited RIRB response

[Lu, Brent]

> 
> Now I noticed that the legacy driver already addressed it recently via commit
> 6d011d5057ff
>     ALSA: hda: Clear RIRB status before reading WP
> 
> We should have checked SOF at the same time, too...
> 
> 
> thanks,
> 
> Takashi

Hi Takashi-san,

Yes you are correct. I tested Chrome v5.4 on a CML Chromebook 'hatch' and
realize the SOF does no suffer from this issue because the 'sync write' feature
is enabled in hda_init. Soon I can reproduce the issue after turning it off. So I
think it's still worthy to have this fix in case we need to disable 'sync write'
someday.


Regards,
Brent