In our testing, we noticed that the i.MX 8M Mini and Plus do still produce quite some excess heat if being stressed and reaching higher temperatures (e.g. above around 50 deg C ambient they will just end up overheating). Looking at their datasheets (excerpt from the Mini attached) we noticed that in both cases the lowest Operating Point for them A53 cores is 1.2 GHz at 0.85 volts.
How about running it at lower frequencies?
Could the voltage be further reduced?
If so, to what degree resp. how related to the frequency?
Is there any expected side effect on endurance, reliability or stability to be expected?
Could we basically just modify the opp_table or what else would we need to look out for?
https://source.codeaurora.org/external/imx/linux-imx/tree/arch/arm64/boot/dts/freescale/imx8mm.dtsi?...
