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Commit aabf400f authored by Ram Chandrasekar's avatar Ram Chandrasekar Committed by Manaf Meethalavalappu Pallikunhi
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dt-bindings: thermal: Add cooling device level properties 



Add optional properties to limit the cooling device mitigation for a
thermal config. This limitation can be a floor and cap restriction.

Change-Id: I2703127d7dd6c9b2f2123c767cf7d58832a2c9ce
Signed-off-by: default avatarRam Chandrasekar <rkumbako@codeaurora.org>
parent bdd918fd

Documentation/devicetree/bindings/thermal/thermal.txt

+15 −1
Original line number Diff line number Diff line
@@ -55,7 +55,8 @@ of heat dissipation). For example a fan's cooling states correspond to 
the different fan speeds possible. Cooling states are referred to by

single unsigned integers, where larger numbers mean greater heat

dissipation. The precise set of cooling states associated with a device

should be defined in a particular device's binding.

(as referred to by the cooling-min-level and cooling-max-level

properties) should be defined in a particular device's binding.

For more examples of cooling devices, refer to the example sections below.



Required properties:
@@ -68,6 +69,15 @@ Required properties: 
			See Cooling device maps section below for more details

			on how consumers refer to cooling devices.



Optional properties:

- cooling-min-level:	An integer indicating the smallest

  Type: unsigned	cooling state accepted. Typically 0.

  Size: one cell



- cooling-max-level:	An integer indicating the largest

  Type: unsigned	cooling state accepted.

  Size: one cell



* Trip points



The trip node is a node to describe a point in the temperature domain
@@ -216,6 +226,8 @@ cpus { 
			396000  950000

			198000  850000

		>;

		cooling-min-level = <0>;

		cooling-max-level = <3>;

		#cooling-cells = <2>; /* min followed by max */

	};

	...
@@ -229,6 +241,8 @@ cpus { 
	 */

	fan0: fan@48 {

		...

		cooling-max-level = <9>;

		cooling-min-level = <0>;

		#cooling-cells = <2>; /* min followed by max */

	};

};