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authorZhang Rui <rui.zhang@intel.com>2012-06-26 16:35:57 +0800
committerZhang Rui <rui.zhang@intel.com>2012-09-24 14:44:36 +0800
commit9d99842f99d847191ebd0c28469d2c70fcc5bf9e (patch)
tree211624d5fbc557c1226b6270a96807acc3b383df /Documentation/thermal
parent74051ba50583a5880d4536c1d9333e2493ddfd76 (diff)
Thermal: set upper and lower limits
set upper and lower limits when binding a thermal cooling device to a thermal zone device. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Reviewed-by: Rafael J. Wysocki <rjw@sisk.pl> Reviewed-by: Eduardo Valentin <eduardo.valentin@ti.com>
Diffstat (limited to 'Documentation/thermal')
-rw-r--r--Documentation/thermal/sysfs-api.txt9
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt
index c087dbcf3535..ca1a1a34970e 100644
--- a/Documentation/thermal/sysfs-api.txt
+++ b/Documentation/thermal/sysfs-api.txt
@@ -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);

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