[Bug 97801] [amdgpu SI] "drm/amd/amdgpu: Tidy up SI SMC code" prevents amdgpu loading with dpm=1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97801

            Bug ID: 97801
           Summary: [amdgpu SI] "drm/amd/amdgpu: Tidy up SI SMC code"
                    prevents amdgpu loading with dpm=1
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: arek.rusi at gmail.com

Created attachment 126501
  --> https://bugs.freedesktop.org/attachment.cgi?id=126501&action=edit
dmesg log

This is quasi-bisected while I need apply patch newer than first bad commit.

So keep in mind that i always apply: drm/amd/amdgpu: Remove double lock from
gfx v6
see: https://bugs.freedesktop.org/show_bug.cgi?id=97594

kernel: drm-next-4.9-wip
boot with dpm=0 works, 
dmesg is attached

"first" bad commit: drm/amd/amdgpu: Tidy up SI SMC code
https://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-next-4.9-wip&id=c4f7beed7017652ca39fb475a1f423084944975e

Due i cannot simple revert i don't know if it's only problem.

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