Comment # 38 on bug 100443 from Christian Lanig

Yes, with Kernel 4.14 the issue doesn't appear anymore, instead everything
looks fine:
amdgpu: [powerplay] amdgpu: powerplay sw initialized

I will close this, when someone has another issue, please make a separate
report, or when it's not fixed for you with current Kernel, feel free to
reopening it.