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SubjectRe: [PATCH] of-thermal: Disable polling when interrupt property is found in DT
On Wed, Oct 16, 2019 at 10:27 AM Stephen Boyd <swboyd@chromium.org> wrote:
>
> Quoting Amit Kucheria (2019-10-15 16:13:16)
> > Currently, in order to enable interrupt-only mode, one must set
> > polling-delay-passive and polling-delay properties in the DT to 0,
> > otherwise the thermal framework will continue to setup a periodic timers
> > to monitor the thermal zones.
> >
> > Change the behaviour, so that on DT-based systems, we no longer have to
> > set the properties to zero if we find an 'interrupt' property in the
> > sensor.
> >
> > Following data shows the number of times
> > thermal_zone_device_set_polling() is invoked with and without this
> > patch. So the patch achieves the same behaviour as setting the delay
> > properties to 0.
> >
> > Current behaviour (without setting delay properties to 0):
> > FUNC COUNT
> > thermal_zone_device_update 302
> > thermal_zone_device_set_pollin 7911
>
> thermal_zone_device_set_polling?

Yes, the script I was using restricted the width of the fn name while printing.

>
> >
> > Current behaviour (with delay properties set to 0):
> > FUNC COUNT
> > thermal_zone_device_update 3
> > thermal_zone_device_set_pollin 6
> >
> > With this patch (without setting delay properties to 0):
> > FUNC COUNT
> > thermal_zone_device_update 3
> > thermal_zone_device_set_pollin 6
> >
> > Suggested-by: Stephen Boyd <swboyd@chromium.org>
> > Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
> > ---
>
> Reviewed-by: Stephen Boyd <swboyd@chromium.org>
>

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