Re: [PATCH 0/3] drm/gk20a: support for reclocking

From: Alexandre Courbot
Date: Thu Jul 10 2014 - 21:42:35 EST


On 07/10/2014 06:50 PM, Mikko Perttunen wrote:
Does GK20A itself have any kind of thermal protection capabilities?
Upstream SOCTHERM support is not yet available (though I have a driver
in my tree), so we are thinking of disabling CPU DVFS on boards that
don't have always-on active cooling for now. Same might be necessary for
GPU as well.

There is a small thermal driver ( https://android.googlesource.com/kernel/tegra/+/b445e5296764d18861a6450f6851f25b9ca59dee/drivers/video/tegra/host/gk20a/therm_gk20a.c ) but it doesn't seem to do much. I believe that for Tegra we rely in SOCTHERM instead, but maybe Ken could confirm?
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