Feature request for this module was posted recently, vote for it.
While it is not done, there are two workarounds:
- Setup fan curve or lower static speed in uefi setup, it often does better job than any Linux software.
- Fake upstream-supported chip which is close enough, i.e.
modprobe force_id=0x8620. I am using this to check fans speed, wouldn’t risk controlling them with this hack though.