1Maxim MAX14577/77836 Multi-Function Device
2
3MAX14577 is a Multi-Function Device with Micro-USB Interface Circuit, Li+
4Battery Charger and SFOUT LDO output for powering USB devices. It is
5interfaced to host controller using I2C.
6
7MAX77836 additionally contains PMIC (with two LDO regulators) and Fuel Gauge.
8
9
10Required properties:
11- compatible : Must be "maxim,max14577" or "maxim,max77836".
12- reg : I2C slave address for the max14577 chip (0x25 for max14577/max77836)
13- interrupts : IRQ line for the chip.
14- interrupt-parent :  The parent interrupt controller.
15
16
17Required nodes:
18 - charger :
19	Node for configuring the charger driver.
20	Required properties:
21		- compatible : "maxim,max14577-charger"
22			or "maxim,max77836-charger"
23		- maxim,fast-charge-uamp : Current in uA for Fast Charge;
24			Valid values:
25			- for max14577: 90000 - 950000;
26			- for max77836: 45000 - 475000;
27		- maxim,eoc-uamp : Current in uA for End-Of-Charge mode;
28			Valid values:
29			- for max14577: 50000 - 200000;
30			- for max77836: 5000 - 100000;
31		- maxim,ovp-uvolt : OverVoltage Protection Threshold in uV;
32			In an overvoltage condition, INT asserts and charging
33			stops. Valid values:
34			- 6000000, 6500000, 7000000, 7500000;
35		- maxim,constant-uvolt : Battery Constant Voltage in uV;
36			Valid values:
37			- 4000000 - 4280000 (step by 20000);
38			- 4350000;
39
40
41Optional nodes:
42- max14577-muic/max77836-muic :
43	Node used only by extcon consumers.
44	Required properties:
45		- compatible : "maxim,max14577-muic" or "maxim,max77836-muic"
46
47- regulators :
48	Required properties:
49		- compatible : "maxim,max14577-regulator"
50			or "maxim,max77836-regulator"
51
52	May contain a sub-node per regulator from the list below. Each
53	sub-node should contain the constraints and initialization information
54	for that regulator. See regulator.txt for a description of standard
55	properties for these sub-nodes.
56
57	List of valid regulator names:
58	- for max14577: CHARGER, SAFEOUT.
59	- for max77836: CHARGER, SAFEOUT, LDO1, LDO2.
60
61	The SAFEOUT is a fixed voltage regulator so there is no need to specify
62	voltages for it.
63
64
65Example:
66
67#include <dt-bindings/interrupt-controller/irq.h>
68
69max14577@25 {
70	compatible = "maxim,max14577";
71	reg = <0x25>;
72	interrupt-parent = <&gpx1>;
73	interrupts = <5 IRQ_TYPE_NONE>;
74
75	muic: max14577-muic {
76		compatible = "maxim,max14577-muic";
77	};
78
79	regulators {
80		compatible = "maxim,max14577-regulator";
81
82		SAFEOUT {
83			regulator-name = "SAFEOUT";
84		};
85		CHARGER {
86			regulator-name = "CHARGER";
87			regulator-min-microamp = <90000>;
88			regulator-max-microamp = <950000>;
89			regulator-boot-on;
90		};
91	};
92
93	charger {
94		compatible = "maxim,max14577-charger";
95
96		maxim,constant-uvolt = <4350000>;
97		maxim,fast-charge-uamp = <450000>;
98		maxim,eoc-uamp = <50000>;
99		maxim,ovp-uvolt = <6500000>;
100	};
101};
102
103
104max77836@25 {
105	compatible = "maxim,max77836";
106	reg = <0x25>;
107	interrupt-parent = <&gpx1>;
108	interrupts = <5 IRQ_TYPE_NONE>;
109
110	muic: max77836-muic {
111		compatible = "maxim,max77836-muic";
112	};
113
114	regulators {
115		compatible = "maxim,max77836-regulator";
116
117		SAFEOUT {
118			regulator-name = "SAFEOUT";
119		};
120		CHARGER {
121			regulator-name = "CHARGER";
122			regulator-min-microamp = <90000>;
123			regulator-max-microamp = <950000>;
124			regulator-boot-on;
125		};
126		LDO1 {
127			regulator-name = "LDO1";
128			regulator-min-microvolt = <2700000>;
129			regulator-max-microvolt = <2700000>;
130		};
131		LDO2 {
132			regulator-name = "LDO2";
133			regulator-min-microvolt = <800000>;
134			regulator-max-microvolt = <3950000>;
135		};
136	};
137
138	charger {
139		compatible = "maxim,max77836-charger";
140
141		maxim,constant-uvolt = <4350000>;
142		maxim,fast-charge-uamp = <225000>;
143		maxim,eoc-uamp = <7500>;
144		maxim,ovp-uvolt = <6500000>;
145	};
146};
147