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,rt4803.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Richtek RT4803 Boost Regulator
8
9 maintainers:
10 - ChiYuan Huang <cy_huang@richtek.com>
11
12 description: |
13 RT4803 is a boost regulator that's designed to provide the minimum output
14 voltage, even if the input voltage is lower than the required voltage. It
15 supports boost and auto bypass mode that depends on the difference between the
16 input and output voltage. If the input is lower than the output, mode will
17 transform to boost mode. Otherwise, turn on bypass switch to enter bypass mode.
18
19 Datasheet is available at
20 https://www.richtek.com/assets/product_file/RT4803/DS4803-03.pdf
21 https://www.richtek.com/assets/product_file/RT4803A/DS4803A-06.pdf
22
23 allOf:
24 - $ref: regulator.yaml#
25
26 properties:
27 compatible:
28 enum:
29 - richtek,rt4803
30
31 reg:
32 maxItems: 1
33
34 richtek,vsel-active-high:
35 type: boolean
36 description: Specify the VSEL register group is using when system is active
37
38 regulator-allowed-modes:
39 description: |
40 Available operating mode
41 1: Auto PFM/PWM
42 2: Force PWM
43 items:
44 enum: [1, 2]
45
46 required:
47 - compatible
48 - reg
49
50 unevaluatedProperties: false
51
52 examples:
53 - |
54 i2c {
55 #address-cells = <1>;
56 #size-cells = <0>;
57
58 regulator@75 {
59 compatible = "richtek,rt4803";
60 reg = <0x75>;
61 richtek,vsel-active-high;
62 regulator-name = "rt4803-regulator";
63 regulator-min-microvolt = <2850000>;
64 regulator-max-microvolt = <4400000>;
65 regulator-allowed-modes = <1 2>;
66 regulator-always-on;
67 };
68 };
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