[REGRESSION] 6.7.0: ASoC: SOF: refactoring breaks sof-rt5682 audio on chromebook; successfully bisected

[Mole Shang]

I'm relatively new here, first time reporting a regression, so apologies in 
advance if I'm doing something wrong.

I'm using Arch Linux (linux-mainline kernel) on my chromebook Acer Spin 713-2W 
(Voxel), and after upgrading linux-mainline from 6.7-rc4 to 6.7-rc5 the audio 
setup isn't working anymore. Firstly I suspected its some changes in the sof-
firmware, yet got no luck in upgrading sof-firmware (2023.09.2 -> 2023.12). 

On certain chromebooks, audio setup needs custom ALSA ucm confs [1], but after 
contacting the chromebook-linux-audio developer [2], I think it's not a conf 
problem, but rather a kernel regression.

After hours of bisecting, the first bad commit 31ed8da (ASoC: SOF: sof-audio: 
Modify logic for enabling/disabling topology cores) ensures the regression. 
demsg log pasted below:

// before 31ed8da, working
[   61.572587] sof-audio-pci-intel-tgl 0000:00:1f.3: ipc tx error for 
0x60010000 (msg/reply size: 108/20): -22
[   61.572593] sof-audio-pci-intel-tgl 0000:00:1f.3: HW params ipc failed for 
stream 1
[   61.572594] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_hw_params on 0000:00:1f.3: -22
[   61.573247] sof-audio-pci-intel-tgl 0000:00:1f.3: ipc tx error for 
0x60010000 (msg/reply size: 108/20): -22
[   61.573250] sof-audio-pci-intel-tgl 0000:00:1f.3: HW params ipc failed for 
stream 1
[   61.573251] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_hw_params on 0000:00:1f.3: -22
[   61.573888] sof-audio-pci-intel-tgl 0000:00:1f.3: ipc tx error for 
0x60010000 (msg/reply size: 108/20): -22
[   61.573892] sof-audio-pci-intel-tgl 0000:00:1f.3: HW params ipc failed for 
stream 1
[   61.573893] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_hw_params on 0000:00:1f.3: -22
[   61.574570] sof-audio-pci-intel-tgl 0000:00:1f.3: ipc tx error for 
0x60010000 (msg/reply size: 108/20): -22
[   61.574572] sof-audio-pci-intel-tgl 0000:00:1f.3: HW params ipc failed for 
stream 1
[   61.574573] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_hw_params on 0000:00:1f.3: -22


// after 31ed8da, broken
[   48.930740] sof-audio-pci-intel-tgl 0000:00:1f.3: ipc tx error for 
0x30020000 (msg/reply size: 12/0): -13
[   48.930762] sof-audio-pci-intel-tgl 0000:00:1f.3: failed to free widget 
DMIC0.IN
[   57.235697] sof-audio-pci-intel-tgl 0000:00:1f.3: ipc tx error for 
0x30030000 (msg/reply size: 16/0): -22
[   57.235701] sof-audio-pci-intel-tgl 0000:00:1f.3: sof_ipc3_route_setup: 
route DMIC0.IN -> BUF4.0 failed
[   57.235703] sof-audio-pci-intel-tgl 0000:00:1f.3: 
sof_ipc3_set_up_all_pipelines: route set up failed
[   57.235704] sof-audio-pci-intel-tgl 0000:00:1f.3: Failed to restore 
pipeline after resume -22
[   57.235706] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_pm_runtime_get on 0000:00:1f.3: -22
[   57.235926] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_pm_runtime_get on 0000:00:1f.3: -22
[   57.235966] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_pm_runtime_get on 0000:00:1f.3: -22
[   57.236006] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_pm_runtime_get on 0000:00:1f.3: -22
[   57.236041] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_pm_runtime_get on 0000:00:1f.3: -22
[   57.236074] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_pm_runtime_get on 0000:00:1f.3: -22
[   57.236107] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_pm_runtime_get on 0000:00:1f.3: -22
[   57.236141] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_pm_runtime_get on 0000:00:1f.3: -22
[   57.236173] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_pm_runtime_get on 0000:00:1f.3: -22
[   57.236205] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_pm_runtime_get on 0000:00:1f.3: -22
[   57.236239] sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC: error at 
snd_soc_pcm_component_pm_runtime_get on 0000:00:1f.3: -22

Steps to reproduce:

- Run chromebook-linux-audio script [2] (this would install custom sof-rt5682 
ucm confs [1] into /usr/share/alsa/ucm2/conf.d/sof-rt5682 and write a line 
`options snd-intel-dspcfg dsp_driver=3` to /etc/modprobe.d/snd-sof.conf)
- Reboot, gets audio working on kernels before 31ed8da
- Install latest stable kernel (6.7.3), audio broken
- Install latest git kernel (6.8-rc2), audio broken
- Revert 31ed8da, build upon latest linux-git (6.8-rc2), audio working

Apologies for my busyiness that I should have reported it long before the 
regression enters stable and lts, but sadly linux-lts (6.6.13) seems to be 
affected too [3].

Please let me know if there's any other thing that I can help debugging.

-- Mole Shang

[1]: https://github.com/WeirdTreeThing/chromebook-ucm-conf/tree/main/sof-rt5682
[2]: https://github.com/WeirdTreeThing/chromebook-linux-audio/issues/70
[3]: https://github.com/WeirdTreeThing/chromebook-linux-audio/issues/
70#issuecomment-1911048309


#regzbot introduced: 31ed8da1c8e5e504710bb36863700e3389f8fc81