linux-kernel - [PATCH v1 1/2] dt-bindings: leds: Add multi-color default-intensities property

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Date:   Tue,  3 May 2022 13:04:50 +0200
From:   Sven Schwermer <sven@...nschwermer.de>
To:     linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org,
        pavel@....cz, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, dmurphy@...com,
        devicetree@...r.kernel.org
Cc:     Sven Schwermer <sven.schwermer@...ruptive-technologies.com>
Subject: [PATCH v1 1/2] dt-bindings: leds: Add multi-color default-intensities property

From: Sven Schwermer <sven.schwermer@...ruptive-technologies.com>

This allows to assign intensity values to the indivisual sub LEDs
(colors) at driver probe time, i.e. most commonly at kernel boot time.
This is crucial for setting a specific color early in the boot process.

Signed-off-by: Sven Schwermer <sven.schwermer@...ruptive-technologies.com>
---
 .../devicetree/bindings/leds/leds-class-multicolor.yaml    | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml b/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
index 37445c68cdef..c483967a847c 100644
--- a/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
@@ -31,6 +31,13 @@ patternProperties:
           include/linux/leds/common.h.
         enum: [ 8, 9 ]
 
+      default-intensities:
+        description: |
+          This parameter, if present, sets the initial intensities of the
+          individual colors. This array must have the same length as the
+          multi-color LED has sub LEDs (colors).
+        $ref: /schemas/types.yaml#/definitions/uint32-array
+
     $ref: "common.yaml#"
 
     required:
-- 
2.36.0