tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
7title: SGMICRO SGM3140 500mA Buck/Boost Charge Pump LED Driver
8
9maintainers:
10 - Luca Weiss <luca@z3ntu.xyz>
11
12description: |
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
19properties:
20 compatible:
21 const: sgmicro,sgm3140
22
23 enable-gpios:
24 maxItems: 1
25 description: A connection to the 'EN' pin.
26
27 flash-gpios:
28 maxItems: 1
29 description: A connection to the 'FLASH' pin.
30
31 vin-supply:
32 description: Regulator providing power to the 'VIN' pin.
33
34 led:
35 type: object
36 $ref: common.yaml#
37
38required:
39 - compatible
40 - flash-gpios
41 - enable-gpios
42
43additionalProperties: false
44
45examples:
46 - |
47 #include <dt-bindings/gpio/gpio.h>
48 #include <dt-bindings/leds/common.h>
49
50 led-controller {
51 compatible = "sgmicro,sgm3140";
52 flash-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */
53 enable-gpios = <&pio 2 3 GPIO_ACTIVE_HIGH>; /* PC3 */
54 vin-supply = <®_dcdc1>;
55
56 sgm3140_flash: led {
57 function = LED_FUNCTION_FLASH;
58 color = <LED_COLOR_ID_WHITE>;
59 flash-max-timeout-us = <250000>;
60 };
61 };