Re: [PATCH v5 3/3] ARM: tegra: Add thermal reset (thermtrip) support to PMC

[Mikko Perttunen]

On 01/06/2015 05:14 PM, Thierry Reding wrote:
> On Tue, Jan 06, 2015 at 12:52:58PM +0200, Mikko Perttunen wrote:
> > From: Mikko Perttunen <mperttunen@xxxxxxxxxx>
> >
> > This adds a device tree controlled option to enable PMC-based
> > thermal reset in overheating situations. Thermtrip is supported on
> > Tegra30, Tegra114 and Tegra124. The thermal reset only works when
> > the thermal sensors are calibrated, so a soctherm driver is also
> > required.
> >
> > The thermtrip event is triggered by the soctherm block, and all
> > soctherm sensors default to showing a temperature of zero Celsius
> > before they are initialized. Because of this, it is safe to initialize
> > thermtrip and soctherm in any order.
> >
> > Signed-off-by: Mikko Perttunen <mperttunen@xxxxxxxxxx>
> > ---
> >   drivers/soc/tegra/pmc.c | 107 ++++++++++++++++++++++++++++++++++++++++++++++++
> >   1 file changed, 107 insertions(+)
>
> This looks good to me. I'm not sure if I asked before, but can this be
> tested? Can we somehow trick thermtrip into reporting a temperature that
> would trigger this?
>
> Thierry

Yep, you can find a program here: 
https://gist.github.com/cyndis/66126c9c176b5f94a76f

It sets the thermtrip threshold to zero degrees.

Mikko

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