Comment # 2 on bug 1204141 from Ivan Ivanov

There are no trip points defined in files provided by 
raspberrypi-firmware-dt package. From what I see they
are deleted deliberately like this:

&cpu_thermal {
    /delete-node/ trips;
    /delete-node/ cooling-maps;
};

And if I am not mistaken this was done since day 1. 
If I would have to guess this is because VPU/GPU is
actually controlling temperature on the SoC.

Error message that we see in the logs was introduced
recently by [1]. Previously, creating a thermal zone
just quietly failed.

Not sure how we should handle this.

[1] d0c75fa2c17f thermal/of: Initialize trip points separately