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So only one led subnode with led-sources is >> supported right now. If at some point the driver functionality is >> expanded the bindings can be easily extended with it. >> --- >> .../bindings/leds/backlight/maxim,max25014.yaml | 107 +++++++++++++++++++++ >> MAINTAINERS | 5 + >> 2 files changed, 112 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/leds/backlight/maxim,max25014.yaml b/Documentation/devicetree/bindings/leds/backlight/maxim,max25014.yaml >> new file mode 100644 >> index 000000000000..e83723224b07 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/leds/backlight/maxim,max25014.yaml >> @@ -0,0 +1,107 @@ >> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/leds/backlight/maxim,max25014.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: Maxim max25014 backlight controller >> + >> +maintainers: >> + - Maud Spierings >> + >> +properties: >> + compatible: >> + enum: >> + - maxim,max25014 >> + >> + reg: >> + maxItems: 1 >> + >> + "#address-cells": >> + const: 1 >> + >> + "#size-cells": >> + const: 0 >> + >> + enable-gpios: >> + maxItems: 1 >> + >> + interrupts: >> + maxItems: 1 >> + >> + power-supply: >> + description: Regulator which controls the boost converter input rail. >> + >> + pwms: >> + maxItems: 1 >> + >> + maxim,iset: >> + $ref: /schemas/types.yaml#/definitions/uint32 >> + maximum: 15 >> + default: 11 >> + description: >> + Value of the ISET field in the ISET register. This controls the current >> + scale of the outputs, a higher number means more current. >> + >> + led@0: > > define whole binding, allow 0-3. binding is not related with driver's > implement. > > it'd better put unders leds. > so like: backlight: backlight@6f { compatible = "maxim,max25014"; reg = <0x6f>; enable-gpios = <&gpio1 4 GPIO_ACTIVE_HIGH>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_backlight>; maxim,iset = <7>; leds { #address-cells = <1>; #size-cells = <0>; led@0 { reg = <0>; led-sources = <0 1 2>; default-brightness = <50>; }; optional led@#.... }; }; right? Kind regards, Maud > >> + type: object >> + description: Properties for a string of connected LEDs. >> + $ref: common.yaml# >> + >> + properties: >> + reg: >> + const: 0 >> + >> + led-sources: >> + allOf: >> + - minItems: 1 >> + maxItems: 4 >> + items: >> + minimum: 0 >> + maximum: 3 >> + default: [0, 1, 2, 3] >> + >> + default-brightness: >> + minimum: 0 >> + maximum: 100 >> + default: 50 >> + >> + required: >> + - reg >> + >> + additionalProperties: false > > unevaluatedProperties: false because ref to common.yaml > > Frank >