1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/mfd/richtek,rt5120.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Richtek RT5120 PMIC
8
9 maintainers:
10 - ChiYuan Huang <cy_huang@richtek.com>
11
12 description: |
13 The RT5120 provides four high-efficiency buck converters and one LDO voltage
14 regulator. The device is targeted at providingthe processor voltage, memory,
15 I/O, and peripheral rails in home entertainment devices. The I2C interface is
16 used for dynamic voltage scaling of the processor voltage, power rails on/off
17 sequence control, operation mode selection.
18
19 properties:
20 compatible:
21 enum:
22 - richtek,rt5120
23
24 reg:
25 maxItems: 1
26
27 interrupts:
28 maxItems: 1
29
30 interrupt-controller: true
31
32 "#interrupt-cells":
33 const: 1
34
35 wakeup-source: true
36
37 richtek,enable-undervolt-hiccup:
38 type: boolean
39 description: |
40 If used, under voltage protection trigger hiccup behavior, else latchup as
41 default
42
43 richtek,enable-overvolt-hiccup:
44 type: boolean
45 description:
46 Like as 'enable-uv-hiccup', it configures over voltage protection to
47 hiccup, else latchup as default
48
49 vin1-supply:
50 description: phandle for buck1 input power source
51
52 vin2-supply:
53 description: phandle for buck2 input power source
54
55 vin3-supply:
56 description: phandle for buck3 input power source
57
58 vin4-supply:
59 description: phandle for buck4 input power source
60
61 vinldo-supply:
62 description: phandle for ldo input power source
63
64 regulators:
65 type: object
66
67 patternProperties:
68 "^buck[1-4]$":
69 type: object
70 $ref: /schemas/regulator/regulator.yaml#
71 unevaluatedProperties: false
72
73 properties:
74 regulator-allowed-modes:
75 description: |
76 Used to specify the allowed buck converter operating mode
77 mode mapping:
78 0: auto mode
79 1: force pwm mode
80 items:
81 enum: [0, 1]
82
83 "^(ldo|exten)$":
84 type: object
85 $ref: /schemas/regulator/regulator.yaml#
86 unevaluatedProperties: false
87
88 additionalProperties: false
89
90 powerkey:
91 type: object
92 description:
93 PON key that connected to RT5120 PMIC.
94
95 properties:
96 compatible:
97 enum:
98 - richtek,rt5120-pwrkey
99
100 required:
101 - compatible
102
103 additionalProperties: false
104
105 required:
106 - compatible
107 - reg
108 - interrupts
109 - '#interrupt-cells'
110 - interrupt-controller
111 - regulators
112 - powerkey
113
114 additionalProperties: false
115
116 examples:
117 - |
118 #include <dt-bindings/interrupt-controller/irq.h>
119
120 i2c {
121 #address-cells = <1>;
122 #size-cells = <0>;
123
124 pmic@62 {
125 compatible = "richtek,rt5120";
126 reg = <0x62>;
127 interrupts-extended = <&gpio_intc 32 IRQ_TYPE_LEVEL_LOW>;
128 interrupt-controller;
129 #interrupt-cells = <1>;
130 wakeup-source;
131
132 regulators {
133 buck1 {
134 regulator-name = "rt5120-buck1";
135 regulator-min-microvolt = <600000>;
136 regulator-max-microvolt = <1393750>;
137 regulator-allowed-modes = <0 1>;
138 regulator-boot-on;
139 };
140 buck2 {
141 regulator-name = "rt5120-buck2";
142 regulator-min-microvolt = <1100000>;
143 regulator-max-microvolt = <1100000>;
144 regulator-allowed-modes = <0 1>;
145 regulator-always-on;
146 };
147 buck3 {
148 regulator-name = "rt5120-buck3";
149 regulator-min-microvolt = <1800000>;
150 regulator-max-microvolt = <1800000>;
151 regulator-allowed-modes = <0 1>;
152 regulator-always-on;
153 };
154 buck4 {
155 regulator-name = "rt5120-buck4";
156 regulator-min-microvolt = <3300000>;
157 regulator-max-microvolt = <3300000>;
158 regulator-allowed-modes = <0 1>;
159 regulator-always-on;
160 };
161 ldo {
162 regulator-name = "rt5120-ldo";
163 regulator-min-microvolt = <1800000>;
164 regulator-max-microvolt = <1800000>;
165 regulator-always-on;
166 };
167 exten {
168 regulator-name = "rt5120-exten";
169 regulator-min-microvolt = <3000000>;
170 regulator-max-microvolt = <3000000>;
171 regulator-always-on;
172 };
173 };
174 powerkey {
175 compatible = "richtek,rt5120-pwrkey";
176 };
177 };
178 };
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