(In reply to comment #47)
>
> I can confirm that the patch works on boot, also on a mac 8,2 with drm-next
> and patches, but fails on suspend resume. It reappears on resume.
> Please reopen the bug.

I have a MacbookPro8,2 and this doesn't happen to me.  My pci ID for the radeon
is 1002:6741 and subsystem 106b:00e2.  Is it the same message in the dmesg log?