Using Raspberry POE+ hat with bullseye

[kl+debian-arm@jama.is]

Hi,

I am using Debian Bullseye on a Raspberry PI 4 with a POE+ hat. So far I am 
unable to get the fan on the POE+ hat working.

Setting

dtparam=poe_fan_temp0=65000,poe_fan_temp0_hyst=5000
dtparam=poe_fan_temp1=67000,poe_fan_temp1_hyst=2000

in /boot/config.txt did not work.

Tested with 

#uname -a
Linux host 5.10.0-9-arm64 #1 SMP Debian 5.10.70-1 (2021-09-30) aarch64 GNU/
Linux

and

#uname -a
Linux host 5.14.0-0.bpo.2-arm64 #1 SMP Debian 5.14.9-2~bpo11+1 (2021-10-10) 
aarch64 GNU/Linux

from bullseye-backports.

Any help is appreciated.

Thanks/Regards,

KL