blob: f682596194883eb5f97c0c05f1f06285c955ffc3 [file] [log] [blame]
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/leds/leds-sgm3140.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: SGMICRO SGM3140 500mA Buck/Boost Charge Pump LED Driver
maintainers:
- Luca Weiss <luca@z3ntu.xyz>
description: |
The SGM3140 is a current-regulated charge pump which can regulate two current
levels for Flash and Torch modes.
The data sheet can be found at:
http://www.sg-micro.com/uploads/soft/20190626/1561535688.pdf
properties:
compatible:
const: sgmicro,sgm3140
enable-gpios:
maxItems: 1
description: A connection to the 'EN' pin.
flash-gpios:
maxItems: 1
description: A connection to the 'FLASH' pin.
vin-supply:
description: Regulator providing power to the 'VIN' pin.
led:
type: object
$ref: common.yaml#
required:
- compatible
- flash-gpios
- enable-gpios
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>
led-controller {
compatible = "sgmicro,sgm3140";
flash-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */
enable-gpios = <&pio 2 3 GPIO_ACTIVE_HIGH>; /* PC3 */
vin-supply = <&reg_dcdc1>;
sgm3140_flash: led {
function = LED_FUNCTION_FLASH;
color = <LED_COLOR_ID_WHITE>;
flash-max-timeout-us = <250000>;
};
};