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| author | Dmitry Osipenko <digetx@gmail.com> | 2021-05-11 00:10:02 +0300 |
|---|---|---|
| committer | Chanwoo Choi <cw00.choi@samsung.com> | 2021-05-21 13:16:10 +0900 |
| commit | 5e480ab94db8102baa73da33534e708a8636c2f9 (patch) | |
| tree | 6f4c8e4a7c74fbceff07dd456be4b91b7f25d7b6 /drivers/devfreq | |
| parent | 7dbc0d246891acbb8ae5840b3237881b7a0787df (diff) | |
| download | lwn-5e480ab94db8102baa73da33534e708a8636c2f9.tar.gz lwn-5e480ab94db8102baa73da33534e708a8636c2f9.zip | |
PM / devfreq: tegra30: Support thermal cooling
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>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'drivers/devfreq')
| -rw-r--r-- | drivers/devfreq/tegra30-devfreq.c | 1 |
1 files changed, 1 insertions, 0 deletions
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, |