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thermal: Enhance thermal_zone_device_update for events

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Added one additional parameter to thermal_zone_device_update() to provide
caller with an optional capability to specify reason.
Currently this event is used by user space governor to trigger different
processing based on event code. Also it saves an additional call to read
temperature when the event is received.
The following events are cuurently defined:
- Unspecified event
- New temperature sample
- Trip point violated
- Trip point changed
- thermal device up and down
- thermal device power capability changed

Signed-off-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Zhang Rui <[email protected]>
This commit is contained in:
Srinivas Pandruvada 2016-08-26 16:21:16 -07:00 • committed by Zhang Rui
commit 0e70f466fb
20 changed files with 60 additions and 30 deletions
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3
drivers/acpi/thermal.c
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@ -520,7 +520,8 @@ static void acpi_thermal_check(void *data)
if (!tz->tz_enabled)
return;
thermal_zone_device_update(tz->thermal_zone);
thermal_zone_device_update(tz->thermal_zone,
THERMAL_EVENT_UNSPECIFIED);
}
/* sys I/F for generic thermal sysfs support */