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Thermal: set upper and lower limits

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set upper and lower limits when binding
a thermal cooling device to a thermal zone device.

Signed-off-by: Zhang Rui <[email protected]>
Reviewed-by: Rafael J. Wysocki <[email protected]>
Reviewed-by: Eduardo Valentin <[email protected]>
This commit is contained in:
Zhang Rui 2012-06-26 16:35:57 +08:00
commit 9d99842f99
5 changed files with 65 additions and 28 deletions
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9
Documentation/thermal/sysfs-api.txt
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@ -84,7 +84,8 @@ temperature) and throttle appropriate devices.
1.3 interface for binding a thermal zone device with a thermal cooling device
1.3.1 int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
int trip, struct thermal_cooling_device *cdev);
int trip, struct thermal_cooling_device *cdev,
unsigned long upper, unsigned long lower);
This interface function bind a thermal cooling device to the certain trip
point of a thermal zone device.
@ -93,6 +94,12 @@ temperature) and throttle appropriate devices.
cdev: thermal cooling device
trip: indicates which trip point the cooling devices is associated with
in this thermal zone.
upper:the Maximum cooling state for this trip point.
THERMAL_NO_LIMIT means no upper limit,
and the cooling device can be in max_state.
lower:the Minimum cooling state can be used for this trip point.
THERMAL_NO_LIMIT means no lower limit,
and the cooling device can be in cooling state 0.
1.3.2 int thermal_zone_unbind_cooling_device(struct thermal_zone_device *tz,
int trip, struct thermal_cooling_device *cdev);