Re: kern/56727: i915drmkms in current causes audio playback distortion

[Taylor R Campbell <riastradh%NetBSD.org@localhost>]

Was it this change that fixed PR 56727 and needs pullup, or something
else?

https://mail-index.netbsd.org/source-changes/2022/03/21/msg137614.html


Module Name:    src
Committed By:   jmcneill
Date:           Mon Mar 21 09:12:10 UTC 2022

Modified Files:
        src/sys/dev/hdaudio: hdaudioreg.h
        src/sys/dev/pci: hdaudio_pci.c hdaudio_pci.h

Log Message:
hdaudio: pci: PCIe config space fixes and Intel PCH snoop support

The HD audio specification does not cover PCI config space, and this
driver was unconditionally writing to a vendor specific register. Reduce
scope of config space accesses based on PCI IDs.

With this cleaned up, add support for Intel PCH devices which require
some additional vendor specific configuration to bypass no snoop mode.


To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 src/sys/dev/hdaudio/hdaudioreg.h
cvs rdiff -u -r1.11 -r1.12 src/sys/dev/pci/hdaudio_pci.c
cvs rdiff -u -r1.1 -r1.2 src/sys/dev/pci/hdaudio_pci.h