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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/leds/leds-sgm3140.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: SGMICRO SGM3140 500mA Buck/Boost Charge Pump LED Driver8 9maintainers:10 - Luca Weiss <luca@z3ntu.xyz>11 12description: |13 The SGM3140 is a current-regulated charge pump which can regulate two current14 levels for Flash and Torch modes.15 16 The data sheet can be found at:17 http://www.sg-micro.com/uploads/soft/20190626/1561535688.pdf18 19properties:20 compatible:21 enum:22 - ocs,ocp811023 - richtek,rt5033-led24 - sgmicro,sgm314025 26 enable-gpios:27 maxItems: 128 description: A connection to the 'EN' pin.29 30 flash-gpios:31 maxItems: 132 description: A connection to the 'FLASH' pin.33 34 vin-supply:35 description: Regulator providing power to the 'VIN' pin.36 37 led:38 type: object39 $ref: common.yaml#40 unevaluatedProperties: false41 42required:43 - compatible44 - flash-gpios45 - enable-gpios46 47additionalProperties: false48 49examples:50 - |51 #include <dt-bindings/gpio/gpio.h>52 #include <dt-bindings/leds/common.h>53 54 led-controller {55 compatible = "sgmicro,sgm3140";56 flash-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */57 enable-gpios = <&pio 2 3 GPIO_ACTIVE_HIGH>; /* PC3 */58 vin-supply = <®_dcdc1>;59 60 sgm3140_flash: led {61 function = LED_FUNCTION_FLASH;62 color = <LED_COLOR_ID_WHITE>;63 flash-max-timeout-us = <250000>;64 };65 };66