| # 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 = <®_dcdc1>; |
| |
| sgm3140_flash: led { |
| function = LED_FUNCTION_FLASH; |
| color = <LED_COLOR_ID_WHITE>; |
| flash-max-timeout-us = <250000>; |
| }; |
| }; |
