From: Sven Schwermer <sven.schwermer@xxxxxxxxxxxxxxxxxxxxxxxxxxx> This allows to group multiple PWM-connected monochrome LEDs into multicolor LEDs, e.g. RGB LEDs. Signed-off-by: Sven Schwermer <sven.schwermer@xxxxxxxxxxxxxxxxxxxxxxxxxxx> --- .../bindings/leds/leds-pwm-multicolor.yaml | 76 +++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml diff --git a/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml b/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml new file mode 100644 index 000000000000..b82b26f2e140 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml @@ -0,0 +1,76 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/leds-pwm-multicolor.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Multi-color LEDs connected to PWM + +maintainers: + - Sven Schwermer <sven.schwermer@xxxxxxxxxxxxxxxxxxxxxxxxxxx> + +description: | + This driver combines several monochrome PWM LEDs into one multi-color + LED using the multicolor LED class. + +properties: + compatible: + const: pwm-leds-multicolor + +patternProperties: + '^multi-led@[0-9a-f]$': + type: object + allOf: + - $ref: leds-class-multicolor.yaml# + + patternProperties: + "^led-[0-9a-z]+$": + type: object + properties: + pwms: + maxItems: 1 + + pwm-names: true + + color: + $ref: common.yaml#/properties/color + + required: + - pwms + - color + +required: + - compatible + +additionalProperties: false + +examples: + - | + #include <dt-bindings/leds/common.h> + + rgb-led { + compatible = "pwm-leds-multicolor"; + + multi-led@0 { + color = <LED_COLOR_ID_RGB>; + function = LED_FUNCTION_INDICATOR; + max-brightness = <65535>; + + led-red { + pwms = <&pwm1 0 1000000>; + color = <LED_COLOR_ID_RED>; + }; + + led-green { + pwms = <&pwm2 0 1000000>; + color = <LED_COLOR_ID_GREEN>; + }; + + led-blue { + pwms = <&pwm3 0 1000000>; + color = <LED_COLOR_ID_BLUE>; + }; + }; + }; + +... -- 2.35.0
