diff options
| author | Eduardo Valentin <edubezval@gmail.com> | 2016-11-08 08:09:15 +0300 |
|---|---|---|
| committer | Zhang Rui <rui.zhang@intel.com> | 2016-11-23 05:06:12 +0300 |
| commit | 8772e185f191bf1280445dfe6b4f9c59e725c473 (patch) | |
| tree | 5df291a2c44f4055a69c89742372004845739883 /drivers/thermal | |
| parent | 106339ab7e98da3e51c109926af6f394dcc06812 (diff) | |
| download | linux-8772e185f191bf1280445dfe6b4f9c59e725c473.tar.xz | |
thermal: core: add a comment describing the main update loop
Simply marking the main update loop section and adding a
comment describing it.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/thermal_core.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 884235f216bd..bf108db6ae5d 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -286,6 +286,17 @@ static void thermal_unregister_governors(void) thermal_gov_power_allocator_unregister(); } +/* + * Zone update section: main control loop applied to each zone while monitoring + * + * in polling mode. The monitoring is done using a workqueue. + * Same update may be done on a zone by calling thermal_zone_device_update(). + * + * An update means: + * - Non-critical trips will invoke the governor responsible for that zone; + * - Hot trips will produce a notification to userspace; + * - Critical trip point will cause a system shutdown. + */ static void thermal_zone_device_set_polling(struct thermal_zone_device *tz, int delay) { |