[BUG] chain-DMA errors when pipewire probes PCM devices at boot

[kv2019i]

Describe the bug
With Ubuntu 22.10, a system with HDA-codec and DMIC, and SOF built with IPC4, following end up to kernel log:

[ 2908.920444] sof-audio-pci-intel-tgl 0000:00:1f.3: no llp found, fall back to default HDA path
[ 2908.924732] sof-audio-pci-intel-tgl 0000:00:1f.3: no llp found, fall back to default HDA path
[ 2908.928428] sof-audio-pci-intel-tgl 0000:00:1f.3: no llp found, fall back to default HDA path
[ 2908.958974] sof-audio-pci-intel-tgl 0000:00:1f.3: no llp found, fall back to default HDA path
[ 2908.972481] sof-audio-pci-intel-tgl 0000:00:1f.3: no llp found, fall back to default HDA path
[ 2908.976602] sof-audio-pci-intel-tgl 0000:00:1f.3: FW reported error: 6 - Unknown error while processing the request
[ 2908.976719] sof-audio-pci-intel-tgl 0000:00:1f.3: ipc error for msg 0xe040000|0x0
[ 2908.976741] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at snd_soc_pcm_component_hw_free on 0000:00:1f.3: -22
[ 2908.977207] sof-audio-pci-intel-tgl 0000:00:1f.3: FW reported error: 6 - Unknown error while processing the request
[ 2908.977268] sof-audio-pci-intel-tgl 0000:00:1f.3: ipc error for msg 0xe040101|0x0
[ 2908.977299] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at snd_soc_pcm_component_hw_free on 0000:00:1f.3: -22
[ 2908.977735] sof-audio-pci-intel-tgl 0000:00:1f.3: FW reported error: 6 - Unknown error while processing the request
[ 2908.977840] sof-audio-pci-intel-tgl 0000:00:1f.3: ipc error for msg 0xe040202|0x0
[ 2908.977861] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at snd_soc_pcm_component_hw_free on 0000:00:1f.3: -22

Functionality seems ok, but this is annoying to have these error level logs in dmesg on every boot.

To Reproduce
Install SOF 2.5-rc1 to any recent Ubuntu or Fedora machine that uses Pipewire as audio daemon.

Reproduction Rate
100%

Expected behavior
No errors in kernel dmesg in boot.

Impact
Annoyance (this is bound to result in bug reports)

Environment

1. Branch name and commit hash of the 2 repositories: sof (firmware/topology) and linux (kernel driver).
   • Kernel: 6.2 (or sof-dev of 2023-03-21)
   • SOF: SOF 2.5-rc1
2. Name of the topology file
   • Topology: sof-hda-generic
3. Name of the platform(s) on which the bug is observed.
   • Platform: tgl

[kv2019i]

FYI @ujfalusi

[makarukp]

@kv2019i Do we start scenario with msg 0xe040000|0x0 -> removing chain dma ?

[lgirdwood]

@jsarha is this fixed, can we close ?

[ujfalusi]

"no llp found, fall back to default HDA path" should not be printed on TGL, the delay reporting is MTL only feature, afaik.

[jsarha]

Also HDMI audio appears to work as well as before. Thanks @ujfalusi ?

[jsarha]

So this fix worked: #7707

Who should close the issue?