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 <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Eduardo Valentin <[email protected]>
Signed-off-by: Zhang Rui <[email protected]>
This commit is contained in:
Eduardo Valentin 2016-11-07 21:09:15 -08:00 • committed by Zhang Rui
commit 8772e185f1

View file

@ -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)
{