[Sound-open-firmware] SOF in a laptop Whiskey Lake ALC215

[josep lladonosa capell]

Hello,

This is my first time here.
I contact you because I am trying to make microphones from my laptop
work under Debian 10.3 (additional compiled kernel 5.6.4 but tried
with your Linux kernel 5.6.0-rc7+).

Laptop is an HP Elitebook 830 G6.

$ sudo lspci  -s 0:1f.3 -nnnnv
00:1f.3 Multimedia audio controller [0401]: Intel Corporation Cannon
Point-LP High Definition Audio Controller [8086:9dc8] (rev 11)
    Subsystem: Hewlett-Packard Company Cannon Point-LP High Definition
Audio Controller [103c:854a]
    Flags: bus master, fast devsel, latency 64, IRQ 158
    Memory at 4022108000 (64-bit, non-prefetchable) [size=16K]
    Memory at 4022000000 (64-bit, non-prefetchable) [size=1M]
    Capabilities: [50] Power Management version 3
    Capabilities: [80] Vendor Specific Information: Len=14 <?>
    Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+

I followed your instructions to build firmware and linux kernel (in a
separate machine - just Cannon Lake and then installing
firmware+kernel). This is part of dmesg:
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
[    4.460258] snd_hda_intel 0000:00:1f.3: DSP detected with PCI
class/subclass/prog-if info 0x040100
[    4.460428] snd_hda_intel 0000:00:1f.3: Digital mics found on
Skylake+ platform, using SOF driver
...
[    4.530541] sof-audio-pci 0000:00:1f.3: DSP detected with PCI
class/subclass/prog-if info 0x040100
[    4.530676] sof-audio-pci 0000:00:1f.3: Digital mics found on
Skylake+ platform, using SOF driver
[    4.530768] sof-audio-pci 0000:00:1f.3: DSP detected with PCI
class/subclass/prog-if 0x040100
[    4.533271] sof-audio-pci 0000:00:1f.3: use msi interrupt mode
...
[    4.537726] sof-audio-pci 0000:00:1f.3: warning: No matching ASoC
machine driver found
[    4.537727] sof-audio-pci 0000:00:1f.3: error: no matching ASoC
machine driver found - aborting probe
[    4.537729] sof-audio-pci 0000:00:1f.3: error: failed to get machine info -19
[    4.537835] sof-audio-pci 0000:00:1f.3: error: failed to probe DSP hardware!
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Result is (from alsa-info):

!!Soundcards recognised by ALSA
!!-----------------------------

--- no soundcards ---


!!PCI Soundcards installed in the system
!!--------------------------------------

00:1f.3 Multimedia audio controller: Intel Corporation Cannon Point-LP
High Definition Audio Controller (rev 11)



In next email I will attach related debug information
(/sys/kernel/debug/dynamic_debug/control lines related to sound.