1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/mfd/richtek,rt5033.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Richtek RT5033 Power Management Integrated Circuit
8
9 maintainers:
10 - Jakob Hauser <jahau@rocketmail.com>
11
12 description:
13 RT5033 is a multifunction device which includes battery charger, fuel gauge,
14 flash LED current source, LDO and synchronous Buck converter for portable
15 applications. It is interfaced to host controller using I2C interface. The
16 battery fuel gauge uses a separate I2C bus.
17
18 properties:
19 compatible:
20 const: richtek,rt5033
21
22 reg:
23 maxItems: 1
24
25 interrupts:
26 maxItems: 1
27
28 regulators:
29 description:
30 The regulators of RT5033 have to be instantiated under a sub-node named
31 "regulators". For SAFE_LDO voltage there is only one value of 4.9 V. LDO
32 voltage ranges from 1.2 V to 3.0 V in 0.1 V steps. BUCK voltage ranges
33 from 1.0 V to 3.0 V in 0.1 V steps.
34 type: object
35 patternProperties:
36 "^(SAFE_LDO|LDO|BUCK)$":
37 type: object
38 $ref: /schemas/regulator/regulator.yaml#
39 unevaluatedProperties: false
40 additionalProperties: false
41
42 charger:
43 type: object
44 $ref: /schemas/power/supply/richtek,rt5033-charger.yaml#
45
46 required:
47 - compatible
48 - reg
49 - interrupts
50
51 additionalProperties: false
52
53 examples:
54 - |
55 #include <dt-bindings/interrupt-controller/irq.h>
56
57 battery: battery {
58 compatible = "simple-battery";
59 precharge-current-microamp = <450000>;
60 constant-charge-current-max-microamp = <1000000>;
61 charge-term-current-microamp = <150000>;
62 precharge-upper-limit-microvolt = <3500000>;
63 constant-charge-voltage-max-microvolt = <4350000>;
64 };
65
66 extcon {
67 usb_con: connector {
68 compatible = "usb-b-connector";
69 label = "micro-USB";
70 type = "micro";
71 };
72 };
73
74 i2c {
75 #address-cells = <1>;
76 #size-cells = <0>;
77
78 i2c@0 {
79 #address-cells = <1>;
80 #size-cells = <0>;
81 reg = <0>;
82
83 fuel-gauge@35 {
84 compatible = "richtek,rt5033-battery";
85 reg = <0x35>;
86
87 interrupt-parent = <&msmgpio>;
88 interrupts = <121 IRQ_TYPE_EDGE_FALLING>;
89
90 pinctrl-names = "default";
91 pinctrl-0 = <&fg_alert_default>;
92
93 power-supplies = <&rt5033_charger>;
94 };
95 };
96
97 i2c@1 {
98 #address-cells = <1>;
99 #size-cells = <0>;
100 reg = <1>;
101
102 pmic@34 {
103 compatible = "richtek,rt5033";
104 reg = <0x34>;
105
106 interrupt-parent = <&msmgpio>;
107 interrupts = <62 IRQ_TYPE_EDGE_FALLING>;
108
109 pinctrl-names = "default";
110 pinctrl-0 = <&pmic_int_default>;
111
112 regulators {
113 safe_ldo_reg: SAFE_LDO {
114 regulator-name = "SAFE_LDO";
115 regulator-min-microvolt = <4900000>;
116 regulator-max-microvolt = <4900000>;
117 regulator-always-on;
118 };
119 ldo_reg: LDO {
120 regulator-name = "LDO";
121 regulator-min-microvolt = <2800000>;
122 regulator-max-microvolt = <2800000>;
123 };
124 buck_reg: BUCK {
125 regulator-name = "BUCK";
126 regulator-min-microvolt = <1200000>;
127 regulator-max-microvolt = <1200000>;
128 };
129 };
130
131 rt5033_charger: charger {
132 compatible = "richtek,rt5033-charger";
133 monitored-battery = <&battery>;
134 richtek,usb-connector = <&usb_con>;
135 };
136 };
137 };
138 };
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