1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/regulator/richtek,rt5739.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Richtek RT5739 Step-Down Buck Converter
8
9 maintainers:
10 - ChiYuan Huang <cy_huang@richtek.com>
11
12 description: |
13 The RT5739 is a step-down switching buck converter that can deliver the
14 programmable output voltage from 300mV to 1300mV with wide input voltage
15 supply of 2.5V to 5.5V. It can provide up to 3.5A continuous current
16 capability at over 80% high efficiency.
17
18 allOf:
19 - $ref: regulator.yaml#
20
21 properties:
22 compatible:
23 enum:
24 - richtek,rt5733
25 - richtek,rt5739
26
27 reg:
28 maxItems: 1
29
30 enable-gpios:
31 maxItems: 1
32
33 richtek,vsel-active-high:
34 description: |
35 If property is present, use the 'VSEL1' register group for buck control.
36 Else, use the 'VSEL0' register group. This depends on external hardware
37 'VSEL' pin connection.
38 type: boolean
39
40 regulator-allowed-modes:
41 description: |
42 buck allowed operating mode
43 0: Auto PFM/PWM mode
44 1: Forced PWM mode
45 items:
46 enum: [0, 1]
47
48 required:
49 - compatible
50 - reg
51
52 unevaluatedProperties: false
53
54 examples:
55 - |
56 #include <dt-bindings/gpio/gpio.h>
57
58 i2c {
59 #address-cells = <1>;
60 #size-cells = <0>;
61
62 regulator@50 {
63 compatible = "richtek,rt5739";
64 reg = <0x50>;
65 enable-gpios = <&gpio26 1 GPIO_ACTIVE_HIGH>;
66 richtek,vsel-active-high;
67 regulator-name = "richtek,rt5739-buck";
68 regulator-min-microvolt = <300000>;
69 regulator-max-microvolt = <1300000>;
70 regulator-allowed-modes = <0 1>;
71 regulator-boot-on;
72 };
73 };
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