[PATCH 1/2] ASoC: SOF: Fix "no reply expected" error during firmware-boot

[Pierre-Louis Bossart]

On 4/3/20 3:01 AM, Hans de Goede wrote:
> Hi,
> 
> On 4/2/20 9:15 PM, Pierre-Louis Bossart wrote:
>>
>>
>> On 4/2/20 1:49 PM, Hans de Goede wrote:
>>> At least on Canon Lake each time the SOF firmware is booted,
>>> the following error is logged in dmesg:
>>>
>>> [   36.711803] sof-audio-pci 0000:00:1f.3: error: no reply expected, 
>>> received 0x0
>>>
>>> Since the DSP is powered down when not in used this happens everytime
>>> e.g. a notification plays, polluting dmesg with these false-positive
>>> errors.
>>
>> What kernel are you using Hans? I thought this was solved with
> 
> 5.6.0
> 
>> 8354d9b44530b ("ASoC: SOF: Intel: hda-loader: clear the IPC ack bit 
>> after FW_PURGE done") >
>> Set DONE bit after the FW_PURGE IPC is polled successfully, to clear the
>> interrupt and avoid the arrival of the confusing unexpected ipc.
> 
> That commit is not in Torvald's tree yet, but it is in
> broonie/sound.git, I've cherry picked it into my local tree
> and reverted my own fix.
> 
> Unfortunately even with that patch cherry picked the errors my
> patch silences still happen.

Ok, we'll look into it. Give us a couple of days on this one, thanks!