kern/55017: audio0 autoconfiguration error on auvia

[vezhlys%gmail.com@localhost]

>Number:         55017
>Category:       kern
>Synopsis:       audio0 autoconfiguration error on auvia
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 25 23:40:00 +0000 2020
>Originator:     Andrius V
>Release:        NetBSD 9.0
>Organization:
>Environment:
NetBSD  9.0 NetBSD 9.0 (GENERIC) #0: Fri Feb 14 00:06:28 UTC 2020  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/i386/compile/GENERIC i386
>Description:
Audio fails to configure properly on VIA VT-310DP motherboard in NetBSD 9.0 release and current branch. It starts "blksize not configured 23040 -> 512" error followed by few autoconfiguration errors after (please look at dmesg messages below). Since, I am not using system frequently anymore, I am not sure when did it start, however I have dmesg file from Jan 15 of 2019 (NetBSD 8.99.30 (GENERIC) #0: Tue Jan 15 14:23:56 UTC 2019), those errors were still missing. They were not present in previous releases as well.

dmesg part from NetBSD 9.0:

auvia0 at pci0 dev 17 function 5: VIA Technologies VT8237 AC'97 Audio (rev 0x60)
auvia0: interrupting at ioapic0 pin 22
auvia0: ac97: VIA Technologies VT1616i codec; headphone, 18 bit DAC, 18 bit ADC, KS Waves 3D
auvia0: ac97: ext id 0x1c1<LDAC,SDAC,CDAC,VRA>
audio0 at auvia0: playback, capture, full duplex, independent
audio0: blksize not configured 23040 -> 512
audio0: autoconfiguration error: configuring playback mode failed
audio0: autoconfiguration error: audio_mixers_init failed, error = 22
audio0: autoconfiguration error: disabled

8.99.30 dmesg part:
auvia0 at pci0 dev 17 function 5: VIA Technologies VT8237 AC'97 Audio (rev 0x60)
auvia0: interrupting at ioapic0 pin 22
auvia0: ac97: VIA Technologies VT1616i codec; headphone, 18 bit DAC, 18 bit ADC, KS Waves 3D
auvia0: ac97: ext id 0x1c1<LDAC,SDAC,CDAC,VRA>
audio0 at auvia0: full duplex, playback, capture, mmap, independent
auvia0: Virtual format configured - Format SLINEAR, precision 16, channels 2, frequency 48000
auvia0: Latency: 8 milliseconds
>How-To-Repeat:
Boot into NetBSD 9.0, check dmesg messages.
>Fix: