]> git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/commitdiff
dt-bindings: thermal: make cooling-maps property optional
authorYuantian Tang <andy.tang@nxp.com>
Mon, 9 Mar 2020 04:54:11 +0000 (12:54 +0800)
committerDaniel Lezcano <daniel.lezcano@linaro.org>
Fri, 20 Mar 2020 11:17:48 +0000 (12:17 +0100)
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
Documentation/devicetree/bindings/thermal/thermal.txt

index ca14ba959e0d0cc6bdf1a3a1b12510af738262ba..f78bec19ca358bc7c22697fecc1b6566717d456f 100644 (file)
@@ -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.