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Date: Tue, 3 May 2016 23:02:43 -0700 From: Eduardo Valentin <edubezval@...il.com> To: Rui Zhang <rui.zhang@...el.com> Cc: Linux PM <linux-pm@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, Eduardo Valentin <edubezval@...il.com> Subject: [PATCH 29/31] 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@...el.com> Cc: linux-pm@...r.kernel.org Cc: linux-kernel@...r.kernel.org Signed-off-by: Eduardo Valentin <edubezval@...il.com> --- drivers/thermal/thermal_core.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 0317aea..d552183 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) { -- 2.1.4
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