| Message ID | eef2dba9633a860063527628a72f6a4523aaf6cd.1651744128.git.sven.schwermer@disruptive-technologies.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v3,1/2] dt-bindings: leds: Add multi-color default-intensities property | expand |
On Thu, 05 May 2022 11:50:08 +0200, Sven Schwermer wrote: > From: Sven Schwermer <sven.schwermer@disruptive-technologies.com> > > This allows to assign intensity values to the individual 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@disruptive-technologies.com> > --- > > Notes: > V1->V2: no changes > V2->V3: > - Use color-intensity mapping instead of simple intensity array > - Add example DTS snippet > > .../bindings/leds/leds-class-multicolor.yaml | 37 +++++++++++++++++++ > 1 file changed, 37 insertions(+) > Acked-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml b/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml index f41d021ed677..41050de496f6 100644 --- a/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml +++ b/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml @@ -31,6 +31,19 @@ patternProperties: include/linux/leds/common.h. enum: [ 8, 9 ] + default-intensities: + description: | + This parameter, if present, sets the initial intensities of the + individual colors. The format is a list of pairs, mapping an intensity + value to a sub LED identified by its color. + $ref: /schemas/types.yaml#/definitions/uint32-matrix + items: + minItems: 2 + maxItems: 2 + items: + - description: color identifier (LED_COLOR_ID_*) + - description: intensity value + $ref: "common.yaml#" required: @@ -38,4 +51,28 @@ patternProperties: additionalProperties: true +examples: + - | + #include <dt-bindings/leds/common.h> + + multi-led { + #address-cells = <1>; + #size-cells = <0>; + + color = <LED_COLOR_ID_RGB>; + default-intensities = <LED_COLOR_ID_RED 64>, + <LED_COLOR_ID_BLUE 0>; + led@0 { + reg = <0>; + color = <LED_COLOR_ID_RED>; + }; + led@1 { + reg = <1>; + color = <LED_COLOR_ID_GREEN>; + }; + led@2 { + reg = <2>; + color = <LED_COLOR_ID_BLUE>; + }; + }; ...