[Sound-open-firmware] [External] Re: Whiskeylake support and kernel version

[Mark Pearson]

Hi,

If I wanted to backport the latest SOF support back to 5.2.9 (for the customer who wants that) - would that be a crazy thing to do? Any tips or pointers on doing that? Just update sound/soc/sof, include/uapi/sound/soc and include/sound/sof....maybe?

Thx
Mark

-----Original Message-----
From: Sound-open-firmware <sound-open-firmware-bounces at alsa-project.org> On Behalf Of Mark Pearson
Sent: Thursday, September 12, 2019 10:04 AM
To: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>; Kai Vehmanen <kai.vehmanen at linux.intel.com>
Cc: sound-open-firmware at alsa-project.org
Subject: Re: [Sound-open-firmware] [External] Re: Whiskeylake support and kernel version

Thanks Pierre - that's really useful. As an aside you've also solved another puzzle I had that the mic wasn't showing up on my 5.3 based kernel :)

I'll try the newer kernel on this platform and see how it goes - I figured I was going to have to do that but the customer wants 5.2.9 and so I was hoping I might be able to get enough working that way. Sounds like that's not a reasonable route to go (without backporting patches, special builds etc)

Mark

-----Original Message-----
From: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Sent: Thursday, September 12, 2019 9:53 AM
To: Mark Pearson <mpearson at lenovo.com>; Kai Vehmanen <kai.vehmanen at linux.intel.com>
Cc: sound-open-firmware at alsa-project.org
Subject: Re: [Sound-open-firmware] [External] Re: Whiskeylake support and kernel version

Hi Mark,

On 9/12/19 8:34 AM, Mark Pearson wrote:
> I just realized how useless my response was...a bit lacking in 
> specifics
> 
> When running 'speaker-test -D hw:0,0 -c 2' I get "playback open error: -22 Invalid argument"

I always use -r 48000, maybe that helps

> And similarly with 'arecord -f dat -D hw:0,6 -d 5 test.wav' we get: " arecord: main:828: audio open error: Invalid argument"

It could also be that this is due to the format, IIRC for DMIC you need to use S32_LE. I think we added some checks recently, and we did change the device names to make them self-explanatory.

> These commands are all working on my cometlake based system (admittedly with the 5.3 kernel) and the devices  all show up with arecord/aplay.
> 
> Reviewing the dmesg (and I can attach the log if it's helpful) it starts off well but I noticed these messages:
> 	[    3.003833] sof-audio-pci 0000:00:1f.3: Firmware info: version 1:1:0-5dd9a
> 	[    3.003834] sof-audio-pci 0000:00:1f.3: Firmware: ABI 3:7:0 Kernel ABI 3:6:0
> 	[    3.003835] sof-audio-pci 0000:00:1f.3: warn: FW ABI is more recent than kernel
> 	[    3.005845] sof-audio-pci 0000:00:1f.3: Topology: ABI 3:7:0 Kernel ABI 3:6:0
> 	[    3.005846] sof-audio-pci 0000:00:1f.3: warn: topology ABI is more recent than kernel
> 
> Which makes me wonder if I should be using an older firmware/topology version? Any thoughts and where would I get 'compatible' versions to try out?
> 
> I also see further down still:
> 	[ 1116.759684] sof-audio-pci 0000:00:1f.3: error: volume get failed to idle -16
> 	[ 1209.452223] sof-audio-pci 0000:00:1f.3: error: no reply expected, received 0x0
> 	[ 1212.452605] sof-audio-pci 0000:00:1f.3: error: load fw failed ret: -110
> 	[ 1212.452628] sof-audio-pci 0000:00:1f.3: error: status = 0x00000000 panic = 0x00000000
> 	[ 1212.452633] sof-audio-pci 0000:00:1f.3: error: failed to reset DSP
> 	[ 1212.452637] sof-audio-pci 0000:00:1f.3: error: failed to boot DSP firmware after resume -110
> 	[ 1212.452655] sof-audio-pci 0000:00:1f.3: error: pcm open failed to resume -22
> 	[ 1212.452658] sof-audio-pci 0000:00:1f.3: ASoC: can't open component 0000:00:1f.3: -22
> 	[ 1212.452662]  HDA Analog: ASoC: failed to start FE -22
> 
> But at this point I'm assuming it's all gone rather wrong.

I would try with the latest kernel (topic/sof-dev on GitHub) and 1.3 firmware. We've done quite a few improvements for suspend/resume robustness and I am not sure they are all in 5.3. That error message was familiar a couple of months ago, I haven't seen it in a while. if it helps I can share the kernel config we use, you don't have to spend time recompiling useless stuff just to test audio. Also the autodetect for DMIC is not in 5.3, it was added later and is queued for 5.4

In terms of topologies, you probably want a recent version. Seppo added a filter to remove the DC component and boost the DMIC volume, the initial releases were 20dB too low. If this helps you can get the ones we tested at https://bugzilla.kernel.org/show_bug.cgi?id=201251, where DMIC issues were solved with others.

Soonish we will have packages and distros will be able to use stable releases and auto updates, please bear with the delays, the Summer has been quite busy.

-Pierre
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