1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-sgm3140.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: SGMICRO SGM3140 500mA Buck/Boost Charge Pump LED Driver
8
9 maintainers:
10 - Luca Weiss <luca@z3ntu.xyz>
11
12 description: |
13 The SGM3140 is a current-regulated charge pump which can regulate two current
14 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.pdf
18
19 properties:
20 compatible:
21 enum:
22 - ocs,ocp8110
23 - richtek,rt5033-led
24 - sgmicro,sgm3140
25
26 enable-gpios:
27 maxItems: 1
28 description: A connection to the 'EN' pin.
29
30 flash-gpios:
31 maxItems: 1
32 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: object
39 $ref: common.yaml#
40 unevaluatedProperties: false
41
42 required:
43 - compatible
44 - flash-gpios
45 - enable-gpios
46
47 additionalProperties: false
48
49 examples:
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 };
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