• Using Raspberry POE+ hat with bullseye

    From kl+debian-arm@jama.is@21:1/5 to All on Sun Nov 28 18:00:04 2021
    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

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  • From Ryutaroh Matsumoto@21:1/5 to All on Mon Nov 29 00:40:02 2021
    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.
    (deleted)
    #uname -a
    Linux host 5.10.0-9-arm64 #1 SMP Debian 5.10.70-1 (2021-09-30) aarch64 GNU/ Linux
    (deleted)
    #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

    * Debian arm64 (incl. images from raspi.debian.net) uses the plain upstream linux kernel.
    * The plain kernel 5.10 does not have the RPi POE driver.
    * 5.14 and later have the RPi POE driver, but the debian kernels do not enable it (so far).

    Solutions can be
    (1) Compile the kernel by yourself, following https://www.debian.org/doc/manuals/debian-kernel-handbook/ch-common-tasks.html
    It takes several hours but possible on RPi4.

    (2) or file a bug report to the Debian linux source package requesting enablement of
    CONFIG_PWM_RASPBERRYPI_POE.
    As far as I can remember, a request of a new device driver into the kernel package
    should verify working of that device driver with its corresponding device. Unfortunately, I don't have POE so I cannot help with verification.

    Best regards, Ryutaroh

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  • From =?UTF-8?Q?Uwe_Kleine-K=c3=b6nig?=@21:1/5 to All on Mon Nov 29 10:20:01 2021
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