port-amd64/60441: pchtemp(4) blocks suspend

["campbell+netbsd%mumble.net@localhost via gnats" <gnats-admin%NetBSD.org@localhost>]

>Number:         60441
>Category:       port-amd64
>Synopsis:       pchtemp(4) blocks suspend
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-amd64-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jul 11 19:15:00 +0000 2026
>Originator:     Taylor R Campbell
>Release:        current
>Organization:
The PchBSD Suspension, Inc.
>Environment:
>Description:
[ 106773.479884] acpi0: entering state S3
[ 106773.479884] Devices without power management support: pchtemp0
[ 106773.479884] acpi0: autoconfiguration error: aborting suspend

>How-To-Repeat:
1. boot a machine with pchtemp(4)
2. sysctl hw.acpi.sleep.state=3
>Fix:
pmf_device_register(self, NULL, NULL), probably