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61 lines
1.4 KiB
61 lines
1.4 KiB
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/leds/leds-sgm3140.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: SGMICRO SGM3140 500mA Buck/Boost Charge Pump LED Driver |
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maintainers: |
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- Luca Weiss <[email protected]> |
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description: | |
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The SGM3140 is a current-regulated charge pump which can regulate two current |
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levels for Flash and Torch modes. |
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The data sheet can be found at: |
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http://www.sg-micro.com/uploads/soft/20190626/1561535688.pdf |
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properties: |
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compatible: |
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const: sgmicro,sgm3140 |
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enable-gpios: |
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maxItems: 1 |
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description: A connection to the 'EN' pin. |
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flash-gpios: |
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maxItems: 1 |
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description: A connection to the 'FLASH' pin. |
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vin-supply: |
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description: Regulator providing power to the 'VIN' pin. |
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led: |
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type: object |
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$ref: common.yaml# |
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required: |
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- compatible |
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- flash-gpios |
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- enable-gpios |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/gpio/gpio.h> |
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#include <dt-bindings/leds/common.h> |
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led-controller { |
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compatible = "sgmicro,sgm3140"; |
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flash-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */ |
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enable-gpios = <&pio 2 3 GPIO_ACTIVE_HIGH>; /* PC3 */ |
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vin-supply = <®_dcdc1>; |
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sgm3140_flash: led { |
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function = LED_FUNCTION_FLASH; |
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color = <LED_COLOR_ID_WHITE>; |
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flash-max-timeout-us = <250000>; |
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}; |
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};
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