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[thermal:,thermal/next] dt-bindings: thermal: Make trips node optional

Message ID 163119831790.25758.1267778969015204261.tip-bot2@tip-bot2
State New
Headers show
Series [thermal:,thermal/next] dt-bindings: thermal: Make trips node optional | expand

Commit Message

thermal-bot for Lad Prabhakar Sept. 9, 2021, 2:38 p.m. UTC 
The following commit has been merged into the thermal/next branch of thermal:

Commit-ID:     22fc857538c3a256563bb796f978b6d4693f5aa3
Gitweb:        https://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux.git//22fc857538c3a256563bb796f978b6d4693f5aa3
Author:        Maxime Ripard <maxime@cerno.tech>
AuthorDate:    Wed, 21 Jul 2021 16:04:03 +02:00
Committer:     Daniel Lezcano <daniel.lezcano@linaro.org>
CommitterDate: Sat, 14 Aug 2021 15:42:30 +02:00

dt-bindings: thermal: Make trips node optional

Even though the previous binding made it a required child node, the
implementation in Linux never made it mandatory and just ignored thermal
zones without trip points.

This was even effectively encouraged, since the thermal core wouldn't
allow a thermal sensor to probe without a thermal zone.

In the case where you had a thermal device that had multiple sensors but
with enough knowledge to provide trip points for only a few of them,
this meant that the only way to make that driver probe was to provide a
thermal zone without the trips node required by the binding.

This obviously led to a fair number of device trees doing exactly that,
making the initial binding requirement ineffective.

Let's make it clear by dropping that requirement.

Cc: Amit Kucheria <amitk@kernel.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-pm@vger.kernel.org
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210721140424.725744-34-maxime@cerno.tech
---
 Documentation/devicetree/bindings/thermal/thermal-zones.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
index 164f715..a07de5e 100644
--- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
+++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
@@ -215,7 +215,7 @@  patternProperties:
       - polling-delay
       - polling-delay-passive
       - thermal-sensors
-      - trips
+
     additionalProperties: false
 
 additionalProperties: false