| Message ID | 20210510211008.30300-2-digetx@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Daniel Lezcano |
| Headers | show |
| Series | Add thermal cooling support to NVIDIA Tegra devfreq | expand |
On 5/11/21 6:10 AM, Dmitry Osipenko wrote: > Expose ACTMON devfreq device as a cooling device in order to throttle > memory freq on overheat. Throttling of memory freq has a significant > cooling effect on NVIDIA Tegra SoCs since higher memory freqs require > higher SoC core voltage which is one of the main causes of the heating. > > Signed-off-by: Dmitry Osipenko <digetx@gmail.com> > --- > drivers/devfreq/tegra30-devfreq.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c > index ce83f883ca65..10661eb2aed8 100644 > --- a/drivers/devfreq/tegra30-devfreq.c > +++ b/drivers/devfreq/tegra30-devfreq.c > @@ -688,6 +688,7 @@ static struct devfreq_dev_profile tegra_devfreq_profile = { > .polling_ms = ACTMON_SAMPLING_PERIOD, > .target = tegra_devfreq_target, > .get_dev_status = tegra_devfreq_get_dev_status, > + .is_cooling_device = true, > }; > > static int tegra_governor_get_target(struct devfreq *devfreq, > Applied it. Thanks.
diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c index ce83f883ca65..10661eb2aed8 100644 --- a/drivers/devfreq/tegra30-devfreq.c +++ b/drivers/devfreq/tegra30-devfreq.c @@ -688,6 +688,7 @@ static struct devfreq_dev_profile tegra_devfreq_profile = { .polling_ms = ACTMON_SAMPLING_PERIOD, .target = tegra_devfreq_target, .get_dev_status = tegra_devfreq_get_dev_status, + .is_cooling_device = true, }; static int tegra_governor_get_target(struct devfreq *devfreq,
Expose ACTMON devfreq device as a cooling device in order to throttle memory freq on overheat. Throttling of memory freq has a significant cooling effect on NVIDIA Tegra SoCs since higher memory freqs require higher SoC core voltage which is one of the main causes of the heating. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- drivers/devfreq/tegra30-devfreq.c | 1 + 1 file changed, 1 insertion(+)