1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * max14577.h - Driver for the Maxim 14577/77836
4 *
5 * Copyright (C) 2014 Samsung Electrnoics
6 * Chanwoo Choi <cw00.choi@samsung.com>
7 * Krzysztof Kozlowski <krzk@kernel.org>
8 *
9 * This driver is based on max8997.h
10 *
11 * MAX14577 has MUIC, Charger devices.
12 * The devices share the same I2C bus and interrupt line
13 * included in this mfd driver.
14 *
15 * MAX77836 has additional PMIC and Fuel-Gauge on different I2C slave
16 * addresses.
17 */
18
19#ifndef __MAX14577_H__
20#define __MAX14577_H__
21
22#include <linux/regulator/consumer.h>
23
24/* MAX14577 regulator IDs */
25enum max14577_regulators {
26	MAX14577_SAFEOUT = 0,
27	MAX14577_CHARGER,
28
29	MAX14577_REGULATOR_NUM,
30};
31
32/* MAX77836 regulator IDs */
33enum max77836_regulators {
34	MAX77836_SAFEOUT = 0,
35	MAX77836_CHARGER,
36	MAX77836_LDO1,
37	MAX77836_LDO2,
38
39	MAX77836_REGULATOR_NUM,
40};
41
42struct max14577_regulator_platform_data {
43	int id;
44	struct regulator_init_data *initdata;
45	struct device_node *of_node;
46};
47
48struct max14577_charger_platform_data {
49	u32 constant_uvolt;
50	u32 fast_charge_uamp;
51	u32 eoc_uamp;
52	u32 ovp_uvolt;
53};
54
55/*
56 * MAX14577 MFD platform data
57 */
58struct max14577_platform_data {
59	/* IRQ */
60	int irq_base;
61
62	/* current control GPIOs */
63	int gpio_pogo_vbatt_en;
64	int gpio_pogo_vbus_en;
65
66	/* current control GPIO control function */
67	int (*set_gpio_pogo_vbatt_en) (int gpio_val);
68	int (*set_gpio_pogo_vbus_en) (int gpio_val);
69
70	int (*set_gpio_pogo_cb) (int new_dev);
71
72	struct max14577_regulator_platform_data *regulators;
73};
74
75/*
76 * Valid limits of current for max14577 and max77836 chargers.
77 * They must correspond to MBCICHWRCL and MBCICHWRCH fields in CHGCTRL4
78 * register for given chipset.
79 */
80struct maxim_charger_current {
81	/* Minimal current, set in CHGCTRL4/MBCICHWRCL, uA */
82	unsigned int min;
83	/*
84	 * Minimal current when high setting is active,
85	 * set in CHGCTRL4/MBCICHWRCH, uA
86	 */
87	unsigned int high_start;
88	/* Value of one step in high setting, uA */
89	unsigned int high_step;
90	/* Maximum current of high setting, uA */
91	unsigned int max;
92};
93
94extern const struct maxim_charger_current maxim_charger_currents[];
95extern int maxim_charger_calc_reg_current(const struct maxim_charger_current *limits,
96		unsigned int min_ua, unsigned int max_ua, u8 *dst);
97
98#endif /* __MAX14577_H__ */
99