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kern/56825: No powermanagement support in amdsmn and amdccp preventing sleep



>Number:         56825
>Category:       kern
>Synopsis:       No powermanagement support in amdsmn and amdccp preventing sleep
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon May 09 07:10:00 +0000 2022
>Originator:     Reinoud Zandijk
>Release:        NetBSD 9.99.94
>Organization:
NetBSD
	
>Environment:
	
	
System: NetBSD gorilla.13thmonkey.org 9.99.94 NetBSD 9.99.94 (GENERIC) #7: Fri Mar 18 15:24:47 CET 2022 reinoud%gorilla.13thmonkey.org@localhost:/tmp/obj-udf/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:

When trying to suspend/sleep my machine with an AMD CPU its prevented by the
missing power support :
[   337.910356] acpi0: entering state S4
[   337.910356] Devices without power management support: amdsmn0 amdccp0
[   337.910356] acpi0: autoconfiguration error: aborting suspend

Detected by autoconf:
[     1.048885] amdsmn0 at pci0 dev 0 function 0: AMD System Management Network
[     1.048885] amdzentemp0 at amdsmn0: AMD CPU Temperature Sensors (Family17h)
[     1.048885] amdccp0 at pci11 dev 0 function 1: AMD Cryptographic Coprocessor

	
>How-To-Repeat:
Try to suspend/sleep the machine with 
sysctl -w hw.acpi.sleep.state=4

	
>Fix:
Implement possibly trivial power management hooks

	

>Unformatted:
 	
 	



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