xref: /freebsd/sys/contrib/device-tree/Bindings/mfd/maxim,max77686.yaml (revision e67e85659c0de33e617e5fbf1028c6e8b49eee53) 
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mfd/maxim,max77686.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Maxim MAX77686 Power Management IC
8
9maintainers:
10  - Chanwoo Choi <cw00.choi@samsung.com>
11  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
12
13description: |
14  This is a part of device tree bindings for Maxim MAX77686 Power Management
15  Integrated Circuit (PMIC).
16
17  The Maxim MAX77686 is a Power Management IC which includes voltage and
18  current regulators, RTC and clock outputs.
19
20  The MAX77686 provides three 32.768khz clock outputs that can be controlled
21  (gated/ungated) over I2C.  The clock IDs are defined as preprocessor macros
22  in dt-bindings/clock/maxim,max77686.h.
23
24properties:
25  compatible:
26    const: maxim,max77686
27
28  '#clock-cells':
29    const: 1
30
31  interrupts:
32    maxItems: 1
33
34  reg:
35    maxItems: 1
36
37  voltage-regulators:
38    $ref: ../regulator/maxim,max77686.yaml
39    description:
40      List of child nodes that specify the regulators.
41
42  wakeup-source: true
43
44required:
45  - compatible
46  - '#clock-cells'
47  - reg
48
49additionalProperties: false
50
51examples:
52  - |
53    #include <dt-bindings/gpio/gpio.h>
54    #include <dt-bindings/interrupt-controller/irq.h>
55
56    i2c {
57        #address-cells = <1>;
58        #size-cells = <0>;
59
60        max77686: pmic@9 {
61            compatible = "maxim,max77686";
62            reg = <0x09>;
63
64            interrupt-parent = <&gpx0>;
65            interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
66            pinctrl-0 = <&max77686_irq>;
67            pinctrl-names = "default";
68            wakeup-source;
69            #clock-cells = <1>;
70
71            voltage-regulators {
72                LDO1 {
73                    regulator-name = "VALIVE_1.0V_AP";
74                    regulator-min-microvolt = <1000000>;
75                    regulator-max-microvolt = <1000000>;
76                    regulator-always-on;
77                };
78
79                LDO2 {
80                    regulator-name = "VM1M2_1.2V_AP";
81                    regulator-min-microvolt = <1200000>;
82                    regulator-max-microvolt = <1200000>;
83                    regulator-always-on;
84                    regulator-state-mem {
85                        regulator-on-in-suspend;
86                    };
87                };
88
89                // ...
90
91                LDO22 {
92                    regulator-name = "VMEM_VDD_2.8V";
93                    regulator-min-microvolt = <2800000>;
94                    regulator-max-microvolt = <2800000>;
95                    maxim,ena-gpios = <&gpk0 2 GPIO_ACTIVE_HIGH>;
96                };
97
98                // ...
99
100                BUCK1 {
101                    regulator-name = "VDD_MIF";
102                    regulator-min-microvolt = <850000>;
103                    regulator-max-microvolt = <1100000>;
104                    regulator-always-on;
105                    regulator-boot-on;
106                    regulator-state-mem {
107                        regulator-off-in-suspend;
108                    };
109                };
110
111                BUCK2 {
112                    regulator-name = "VDD_ARM";
113                    regulator-min-microvolt = <850000>;
114                    regulator-max-microvolt = <1500000>;
115                    regulator-always-on;
116                    regulator-boot-on;
117                    regulator-state-mem {
118                        regulator-on-in-suspend;
119                    };
120                };
121
122                // ...
123
124                BUCK9 {
125                    regulator-name = "CAM_ISP_CORE_1.2V";
126                    regulator-min-microvolt = <1000000>;
127                    regulator-max-microvolt = <1200000>;
128                    maxim,ena-gpios = <&gpm0 3 GPIO_ACTIVE_HIGH>;
129                };
130            };
131        };
132    };
133