Some temperature sensors are missing in recent images

Started by mossroy, March 23, 2021, 03:43:25 pm

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mossroy

In older images provided by Olimex, several temperature sensors were exposed. In particular some coming from the CPU.

Example with a board installed with A64-OLinuXino-buster-minimal-20200601-131837.img (running with kernel 5.8.18) :
$ sensors
axp813_adc-isa-0000
Adapter: ISA adapter
temp1:        +35.7°C 

gpu1_thermal-virtual-0
Adapter: Virtual device
temp1:        +48.3°C 

cpu0_thermal-virtual-0
Adapter: Virtual device
temp1:        +48.0°C  (crit = +90.0°C)

axp20x_battery-isa-0000
Adapter: ISA adapter
in0:          +0.00 V 
curr1:        +0.00 A 

axp813_ac-isa-0000
Adapter: ISA adapter
in0:              N/A  (min =  +4.00 V)

gpu0_thermal-virtual-0
Adapter: Virtual device
temp1:        +48.7°C

But most of these sensors have disappeared in more recent images.

For example, on a board installed with A64-OLinuXino-buster-minimal-20201207-193928.img (upgraded to kernel 5.10.23) :
$ sensors
axp813_adc-isa-0000
Adapter: ISA adapter
temp1:        +36.7°C

The CPU sensors are valuable to check it's not overheating. In particular now that the CPU governor is set to "performance" by default