Comment # 1 on bug 1168633 from Fred Blaise

Just seen this in dmesg, maybe related to SOF?

[   19.743379] sof-audio-pci 0000:00:1f.3: DSP detected with PCI
class/subclass/prog-if info 0x040380
[   19.743527] sof-audio-pci 0000:00:1f.3: Digital mics found on Skylake+
platform, using SOF driver
[   19.743675] sof-audio-pci 0000:00:1f.3: warning: No matching ASoC machine
driver found
[   19.743681] sof-audio-pci 0000:00:1f.3: DSP detected with PCI
class/subclass/prog-if 0x040380
[   19.743788] sof-audio-pci 0000:00:1f.3: use msi interrupt mode
[   19.743887] sof-audio-pci 0000:00:1f.3: bound 0000:00:02.0 (ops
i915_audio_component_bind_ops [i915])
[   19.752246] sof-audio-pci 0000:00:1f.3: hda codecs found, mask 5
[   19.752248] sof-audio-pci 0000:00:1f.3: using HDA machine driver
skl_hda_dsp_generic now
[   19.886870] sof-audio-pci 0000:00:1f.3: Direct firmware load for
intel/sof/sof-cnl.ri failed with error -2
[   19.886873] sof-audio-pci 0000:00:1f.3: error: request firmware
intel/sof/sof-cnl.ri failed err: -2
[   19.886875] sof-audio-pci 0000:00:1f.3: error: failed to load DSP firmware
-2
[   19.887131] sof-audio-pci 0000:00:1f.3: error: sof_probe_work failed err: -2