CPU temperature monitoring - own OS

[WhiteHexagon]

So I'm still playing with my Zig toy OS for PinePhone, and I reached the point where I can draw on screen the A53 CPU core temperature   

Does anyone know what temperatures I need to set for the alarm/shutdown limits please?  It seems to get hot quite fast, although that is probably my code  

I guess I should consider the GPU sensors too, but since I am streaming a framebuffer direct to LCD, I doubt they are doing much temperature wise.

okay I finally stumbled over the wiki info regarding this topic:

https://wiki.pine64.org/wiki/PinePhone_Thermal_Tweaks