1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/regulator/mps,mpq7920.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Monolithic Power System MPQ7920 PMIC
8
9 maintainers:
10 - Saravanan Sekar <sravanhome@gmail.com>
11
12 properties:
13 $nodename:
14 pattern: "pmic@[0-9a-f]{1,2}"
15 compatible:
16 enum:
17 - mps,mpq7920
18
19 reg:
20 maxItems: 1
21
22 regulators:
23 type: object
24
25 description: |
26 list of regulators provided by this controller, must be named
27 after their hardware counterparts BUCK[1-4], one LDORTC, and LDO[2-5]
28
29 properties:
30 mps,switch-freq:
31 $ref: /schemas/types.yaml#/definitions/uint8
32 enum: [0, 1, 2, 3]
33 default: 2
34 description: |
35 switching frequency must be one of following corresponding value
36 1.1MHz, 1.65MHz, 2.2MHz, 2.75MHz
37
38 ldortc:
39 type: object
40 $ref: regulator.yaml#
41 unevaluatedProperties: false
42
43 patternProperties:
44 "^ldo[1-4]$":
45 type: object
46 $ref: regulator.yaml#
47 unevaluatedProperties: false
48
49 "^buck[1-4]$":
50 type: object
51 $ref: regulator.yaml#
52
53 properties:
54 mps,buck-softstart:
55 $ref: /schemas/types.yaml#/definitions/uint8
56 enum: [0, 1, 2, 3]
57 description: |
58 defines the soft start time of this buck, must be one of the following
59 corresponding values 150us, 300us, 610us, 920us
60
61 mps,buck-phase-delay:
62 $ref: /schemas/types.yaml#/definitions/uint8
63 enum: [0, 1, 2, 3]
64 description: |
65 defines the phase delay of this buck, must be one of the following
66 corresponding values 0deg, 90deg, 180deg, 270deg
67
68 mps,buck-ovp-disable:
69 type: boolean
70 description: |
71 disables over voltage protection of this buck
72
73 unevaluatedProperties: false
74
75 additionalProperties: false
76
77 required:
78 - compatible
79 - reg
80 - regulators
81
82 additionalProperties: false
83
84 examples:
85 - |
86 i2c {
87 #address-cells = <1>;
88 #size-cells = <0>;
89
90 pmic@69 {
91 compatible = "mps,mpq7920";
92 reg = <0x69>;
93
94 regulators {
95 mps,switch-freq = /bits/ 8 <1>;
96
97 buck1 {
98 regulator-name = "buck1";
99 regulator-min-microvolt = <400000>;
100 regulator-max-microvolt = <3587500>;
101 regulator-min-microamp = <460000>;
102 regulator-max-microamp = <7600000>;
103 regulator-boot-on;
104 mps,buck-ovp-disable;
105 mps,buck-phase-delay = /bits/ 8 <2>;
106 mps,buck-softstart = /bits/ 8 <1>;
107 };
108
109 ldo2 {
110 regulator-name = "ldo2";
111 regulator-min-microvolt = <650000>;
112 regulator-max-microvolt = <3587500>;
113 };
114 };
115 };
116 };
117 ...
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