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,rt4801-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Richtek RT4801 Display Bias regulators
8
9 maintainers:
10 - ChiYuan Huang <cy_huang@richtek.com>
11
12 description: |
13 Regulator nodes should be named to DSVP and DSVN. The
14 definition for each of these nodes is defined using the standard
15 binding for regulators at
16 Documentation/devicetree/bindings/regulator/regulator.txt.
17 Datasheet is available at
18 https://www.richtek.com/assets/product_file/RT4801H/DS4801H-00.pdf
19
20 properties:
21 compatible:
22 enum:
23 - richtek,rt4801
24
25 reg:
26 maxItems: 1
27
28 enable-gpios:
29 description: GPIOs to use to enable DSVP/DSVN regulator.
30 The first one is ENP to enable DSVP, and second one is ENM to enable DSVN.
31 Number of GPIO in the array list could be 1 or 2.
32 If only one gpio is specified, only one gpio used to control ENP/ENM.
33 Else if both are specified, DSVP/DSVN could be controlled individually.
34 If this property not specified, treat both as always-on regulators.
35
36 Property is deprecated. Use enable-gpios in each regulator.
37 minItems: 1
38 maxItems: 2
39 deprecated: true
40
41 patternProperties:
42 "^DSV(P|N)$":
43 type: object
44 $ref: regulator.yaml#
45 unevaluatedProperties: false
46 description:
47 Properties for single display bias regulator.
48
49 properties:
50 enable-gpios:
51 description:
52 GPIO to use to enable DSVP/DSVN regulator. One GPIO can be configured
53 for controlling both regulators. If this property not specified for
54 any regulator, treat both as always-on regulators.
55 maxItems: 1
56
57 required:
58 - compatible
59 - reg
60
61 additionalProperties: false
62
63 examples:
64 - |
65 i2c {
66 #address-cells = <1>;
67 #size-cells = <0>;
68
69 rt4801@73 {
70 compatible = "richtek,rt4801";
71 reg = <0x73>;
72
73 dsvp: DSVP {
74 regulator-name = "rt4801,dsvp";
75 regulator-min-microvolt = <4000000>;
76 regulator-max-microvolt = <6000000>;
77 regulator-boot-on;
78 enable-gpios = <&gpio26 2 0>;
79 };
80 dsvn: DSVN {
81 regulator-name = "rt4801,dsvn";
82 regulator-min-microvolt = <4000000>;
83 regulator-max-microvolt = <6000000>;
84 regulator-boot-on;
85 enable-gpios = <&gpio26 3 0>;
86 };
87
88 };
89 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.