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 */ |
25 | enum max14577_regulators { |
26 | MAX14577_SAFEOUT = 0, |
27 | MAX14577_CHARGER, |
28 | |
29 | MAX14577_REGULATOR_NUM, |
30 | }; |
31 | |
32 | /* MAX77836 regulator IDs */ |
33 | enum max77836_regulators { |
34 | MAX77836_SAFEOUT = 0, |
35 | MAX77836_CHARGER, |
36 | MAX77836_LDO1, |
37 | MAX77836_LDO2, |
38 | |
39 | MAX77836_REGULATOR_NUM, |
40 | }; |
41 | |
42 | struct max14577_regulator_platform_data { |
43 | int id; |
44 | struct regulator_init_data *initdata; |
45 | struct device_node *of_node; |
46 | }; |
47 | |
48 | struct 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 | */ |
58 | struct 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 | */ |
80 | struct 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 | |
94 | extern const struct maxim_charger_current maxim_charger_currents[]; |
95 | extern 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 | |