Lenovo Yoga C630 Pantheon "no DMIC ep_blob found" in dmesg

[paulmcauley]

I get the following error repeated numerous times in my dmesg:

[   21.234475] snd_soc_avs 0000:00:1f.3: no DMIC ep_blob found
[   21.234479] snd_soc_avs 0000:00:1f.3: module-type create failed: -2
[   21.234481] snd_soc_avs 0000:00:1f.3: error creating module -2
[   21.234585] snd_soc_avs 0000:00:1f.3: create path failed: -2
[   21.234586] snd_soc_avs 0000:00:1f.3: ASoC: error at snd_soc_dai_hw_params on DMIC Pin: -2
[   21.234590]  DMIC: ASoC: error at __soc_pcm_hw_params on DMIC: -2
[   21.234593]  Digital Microphone: ASoC: error at dpcm_fe_dai_hw_params on Digital Microphone: -2

Otherwise, most audio works well. The internal microphone is, however, quite quiet and the headphone detection/switching can sometimes be intermittent.

Boardname Pantheon / nami Operating System: Fedora Linux 39 KDE Plasma Version: 5.27.9 KDE Frameworks Version: 5.111.0 Qt Version: 5.15.11 Kernel Version: 6.5.12-300.fc39.x86_64 (64-bit) Graphics Platform: Wayland Processors: 8 × Intel® Core™ i7-8550U CPU @ 1.80GHz Memory: 15.5 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics 620 Manufacturer: Google Product Name: Pantheon System Version: 1.0