Author of 93b100ddda3be284be160e9ccba28c7f8f21ab73 simply forgot to remove scaling values for powerplay.
Have a look at 23ec3d1479fd79658cd52c47618d8ddd2f32550b where the same scaling applied to vega.
You may have to patch drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
too.
Have a look at needed_patch.txt
Created attachment 278939
bisect
Author of 93b100ddda3be28 4be160e9ccba28c 7f8f21ab73 simply forgot to remove scaling values for powerplay. 58cd52c47618d8d dd2f32550b where the same scaling applied to vega. gpu/drm/ amd/display/ amdgpu_ dm/amdgpu_ dm_services. c
Have a look at 23ec3d1479fd796
You may have to patch drivers/
too.
Have a look at needed_patch.txt