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dt-bindings: leds: Add default-intensity property

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Document the default-intensity property to set a default color on
multicolor LEDs.

Update pwm-multicolor to support it and update the example to turn the
LED red on boot.

Signed-off-by: Jonas Rebmann <jre@pengutronix.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260713-multicolor-default-v3-1-fb43f3f789cf@pengutronix.de
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Jonas Rebmann 2026-07-13 10:50:28 +02:00 committed by Lee Jones
parent 07e028d93a
commit 2ebd1cb772
2 changed files with 14 additions and 0 deletions
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10
Documentation/devicetree/bindings/leds/common.yaml
View File

@ -73,6 +73,16 @@ properties:
- keep
default: off
default-intensity:
description:
The initial intensity of the LED color component. As the intensity of
each sub-LED is multiplied with the overall brightness, without this
property on a sub-LED, it may effectively be initialized at minimum
brightness regardless of its linux,default-trigger and default-brightness
properties.
$ref: /schemas/types.yaml#/definitions/uint32
default: 0
linux,default-trigger:
description:
This parameter, if present, is a string defining the trigger assigned to

4
Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml
View File

@ -45,6 +45,8 @@ properties:
color: true
default-intensity: true
required:
- pwms
- color
@ -63,12 +65,14 @@ examples:
multi-led {
color = <LED_COLOR_ID_RGB>;
linux,default-trigger = "default-on";
function = LED_FUNCTION_INDICATOR;
max-brightness = <65535>;
led-red {
pwms = <&pwm1 0 1000000>;
color = <LED_COLOR_ID_RED>;
default-intensity = <65535>;
};
led-green {