On Thu, Jan 10, 2019 at 5:59 AM Stephen Boyd <swboyd@xxxxxxxxxxxx> wrote: > > Quoting Amit Kucheria (2019-01-09 16:00:55) > > 75 degrees is too aggressive for throttling the CPU. After speaking to > > Qualcomm engineers, increase it to 95 degrees. > > > > Signed-off-by: Amit Kucheria <amit.kucheria@xxxxxxxxxx> > > --- > > arch/arm64/boot/dts/qcom/sdm845.dtsi | 16 ++++++++-------- > > Is the plan that these are some defaults that would be adjusted by board > variants? Just curious why we have anything in here and don't punt it > all to each board dts file. These values are meant to be safe values for silicon operation as characterised[1] by the HW team. So I'd consider them a more than just default values. It also gives future boards a safe starting point. IMHO it would be better to have the characterized values merged upstream and if really required, those values can be tweaked in the board-specific DTS. [1] Caveat: The characterisation probably focused on mobile devices and might change depending on form-factor, active cooling and heat dissipation design but those differences should only impact the skin temperature, not the operation of the SoC itself.
