Same issue:

patching file drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
Hunk #5 FAILED at 3943.
Hunk #6 succeeded at 3954 (offset -4 lines).
Hunk #7 succeeded at 4038 (offset -4 lines).
Hunk #8 succeeded at 4155 (offset -4 lines).
Hunk #9 succeeded at 4672 (offset -4 lines).
1 out of 9 hunks FAILED -- saving rejects to file
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c.rej
patching file drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.h