Thermal: Add Hysteresis attributes

[GitHub/LineageOS/android_kernel_samsung_universal7580.git] / Documentation / thermal / sysfs-api.txt

diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt
index 1733ab947a95d3849ff650e7252cfb1d0cb99d11..2ba4c9bb790a91f10f040e1971059ce73694719e 100644 (file)
--- a/Documentation/thermal/sysfs-api.txt
+++ b/Documentation/thermal/sysfs-api.txt
@@ -32,7 +32,8 @@ temperature) and throttle appropriate devices.
 
 1.1 thermal zone device interface
 1.1.1 struct thermal_zone_device *thermal_zone_device_register(char *name,
-               int trips, void *devdata, struct thermal_zone_device_ops *ops)
+               int trips, int mask, void *devdata,
+               struct thermal_zone_device_ops *ops)
 
     This interface function adds a new thermal zone device (sensor) to
     /sys/class/thermal folder as thermal_zone[0-*]. It tries to bind all the
@@ -40,6 +41,7 @@ temperature) and throttle appropriate devices.
 
     name: the thermal zone name.
     trips: the total number of trip points this thermal zone supports.
+    mask: Bit string: If 'n'th bit is set, then trip point 'n' is writeable.
     devdata: device private data
     ops: thermal zone device call-backs.
        .bind: bind the thermal zone device with a thermal cooling device.
@@ -119,6 +121,7 @@ Thermal zone device sys I/F, created once it's registered:
     |---mode:                  Working mode of the thermal zone
     |---trip_point_[0-*]_temp: Trip point temperature
     |---trip_point_[0-*]_type: Trip point type
+    |---trip_point_[0-*]_hyst: Hysteresis value for this trip point
 
 Thermal cooling device sys I/F, created once it's registered:
 /sys/class/thermal/cooling_device[0-*]:
@@ -188,6 +191,11 @@ trip_point_[0-*]_type
        thermal zone.
        RO, Optional
 
+trip_point_[0-*]_hyst
+       The hysteresis value for a trip point, represented as an integer
+       Unit: Celsius
+       RW, Optional
+
 cdev[0-*]
        Sysfs link to the thermal cooling device node where the sys I/F
        for cooling device throttling control represents.