From 22fc857538c3a256563bb796f978b6d4693f5aa3 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Wed, 21 Jul 2021 16:04:03 +0200 Subject: [PATCH] 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 Cc: Daniel Lezcano Cc: linux-pm@vger.kernel.org Cc: Zhang Rui Signed-off-by: Maxime Ripard Reviewed-by: Rob Herring Signed-off-by: Daniel Lezcano 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(-) diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml index 164f71598c59..a07de5ed0ca6 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 -- 2.20.1