Comment # 31 on bug 1180749 from Takashi Iwai

Alex submitted the patches including my module parameter patch to the upstream
amd-gfx ML, and now I updated amdgpu-dbg KMP based on those patches.  (And the
debug print was dropped.)

Could you check it later together with the latest (matching) TW kernel?
Once after confirming it works for you, I'll merge those patches to TW kernel.

Even after merging TW, though, we'll still need to keep the upstream bug opened
until more workarounds are implemented (e.g. DMI-based quirk entries).