linux-kernel - [PATCH] dt-bindings: leds: pwm-multicolor: document max-brigthness

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Date:   Tue, 19 Jul 2022 09:45:42 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Pavel Machek <pavel@....cz>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Sven Schwermer <sven.schwermer@...ruptive-technologies.com>,
        linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rob Herring <robh@...nel.org>
Subject: [PATCH] dt-bindings: leds: pwm-multicolor: document max-brigthness

The Multicolor PWM LED uses max-brigthness property (in the example and
in the driver), so document it to fixi dt_binding_check warning like:

  leds/leds-pwm-multicolor.example.dtb:
    led-controller: multi-led: Unevaluated properties are not allowed ('max-brightness' was unexpected)

Reported-by: Rob Herring <robh@...nel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 .../devicetree/bindings/leds/leds-pwm-multicolor.yaml       | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml b/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml
index d0f846cd019d..bd6ec04a8727 100644
--- a/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml
@@ -22,6 +22,12 @@ properties:
     $ref: leds-class-multicolor.yaml#
     unevaluatedProperties: false
 
+    properties:
+      max-brightness:
+        description:
+          Maximum brightness possible for the LED
+        $ref: /schemas/types.yaml#/definitions/uint32
+
     patternProperties:
       "^led-[0-9a-z]+$":
         type: object
-- 
2.34.1