Commit fd96a316 authored Mar 09, 2020 by Yuantian Tang Committed by Daniel Lezcano Mar 20, 2020

dt-bindings: thermal: make cooling-maps property optional



Cooling-maps doesn't have to be a required property because there may
be no cooling device on system, or there are no enough cooling devices for
each thermal zone in multiple thermal zone cases since cooling devices
can't be shared.
So make this property optional to remove such limitations.

For thermal zones with no cooling-maps, there could be critic trips
that can trigger CPU reset or shutdown. So they still can take actions.

Signed-off-by: Yuantian Tang <andy.tang@nxp.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200309045411.21859-1-andy.tang@nxp.com

parent 01c354e2

Documentation/devicetree/bindings/thermal/thermal.txt

+1 −1

Original line number	Diff line number	Diff line
		@@ -142,11 +142,11 @@ Required properties:
		- trips: A sub-node which is a container of only trip point nodes
		Type: sub-node required to describe the thermal zone.

		Optional property:
		- cooling-maps: A sub-node which is a container of only cooling device
		Type: sub-node map nodes, used to describe the relation between trips
		and cooling devices.

		Optional property:
		- coefficients: An array of integers (one signed cell) containing
		Type: array coefficients to compose a linear relation between
		Elem size: one cell the sensors listed in the thermal-sensors property.

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