1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * internal.h -- Voltage/Current Regulator framework internal code |
4 | * |
5 | * Copyright 2007, 2008 Wolfson Microelectronics PLC. |
6 | * Copyright 2008 SlimLogic Ltd. |
7 | * |
8 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
9 | */ |
10 | |
11 | #ifndef __REGULATOR_INTERNAL_H |
12 | #define __REGULATOR_INTERNAL_H |
13 | |
14 | #include <linux/suspend.h> |
15 | |
16 | #define REGULATOR_STATES_NUM (PM_SUSPEND_MAX + 1) |
17 | |
18 | #define rdev_crit(rdev, fmt, ...) \ |
19 | pr_crit("%s: " fmt, rdev_get_name(rdev), ##__VA_ARGS__) |
20 | #define rdev_err(rdev, fmt, ...) \ |
21 | pr_err("%s: " fmt, rdev_get_name(rdev), ##__VA_ARGS__) |
22 | #define rdev_warn(rdev, fmt, ...) \ |
23 | pr_warn("%s: " fmt, rdev_get_name(rdev), ##__VA_ARGS__) |
24 | #define rdev_info(rdev, fmt, ...) \ |
25 | pr_info("%s: " fmt, rdev_get_name(rdev), ##__VA_ARGS__) |
26 | #define rdev_dbg(rdev, fmt, ...) \ |
27 | pr_debug("%s: " fmt, rdev_get_name(rdev), ##__VA_ARGS__) |
28 | |
29 | struct regulator_voltage { |
30 | int min_uV; |
31 | int max_uV; |
32 | }; |
33 | |
34 | /* |
35 | * struct regulator |
36 | * |
37 | * One for each consumer device. |
38 | * @voltage - a voltage array for each state of runtime, i.e.: |
39 | * PM_SUSPEND_ON |
40 | * PM_SUSPEND_TO_IDLE |
41 | * PM_SUSPEND_STANDBY |
42 | * PM_SUSPEND_MEM |
43 | * PM_SUSPEND_MAX |
44 | */ |
45 | struct regulator { |
46 | struct device *dev; |
47 | struct list_head list; |
48 | unsigned int always_on:1; |
49 | unsigned int bypass:1; |
50 | unsigned int device_link:1; |
51 | int uA_load; |
52 | unsigned int enable_count; |
53 | unsigned int deferred_disables; |
54 | struct regulator_voltage voltage[REGULATOR_STATES_NUM]; |
55 | const char *supply_name; |
56 | struct device_attribute dev_attr; |
57 | struct regulator_dev *rdev; |
58 | struct dentry *debugfs; |
59 | }; |
60 | |
61 | extern const struct class regulator_class; |
62 | |
63 | static inline struct regulator_dev *dev_to_rdev(struct device *dev) |
64 | { |
65 | return container_of(dev, struct regulator_dev, dev); |
66 | } |
67 | |
68 | #ifdef CONFIG_OF |
69 | struct regulator_dev *of_find_regulator_by_node(struct device_node *np); |
70 | struct regulator_init_data *regulator_of_get_init_data(struct device *dev, |
71 | const struct regulator_desc *desc, |
72 | struct regulator_config *config, |
73 | struct device_node **node); |
74 | |
75 | struct regulator_dev *of_parse_coupled_regulator(struct regulator_dev *rdev, |
76 | int index); |
77 | |
78 | int of_get_n_coupled(struct regulator_dev *rdev); |
79 | |
80 | bool of_check_coupling_data(struct regulator_dev *rdev); |
81 | |
82 | #else |
83 | static inline struct regulator_dev * |
84 | of_find_regulator_by_node(struct device_node *np) |
85 | { |
86 | return NULL; |
87 | } |
88 | |
89 | static inline struct regulator_init_data * |
90 | regulator_of_get_init_data(struct device *dev, |
91 | const struct regulator_desc *desc, |
92 | struct regulator_config *config, |
93 | struct device_node **node) |
94 | { |
95 | return NULL; |
96 | } |
97 | |
98 | static inline struct regulator_dev * |
99 | of_parse_coupled_regulator(struct regulator_dev *rdev, |
100 | int index) |
101 | { |
102 | return NULL; |
103 | } |
104 | |
105 | static inline int of_get_n_coupled(struct regulator_dev *rdev) |
106 | { |
107 | return 0; |
108 | } |
109 | |
110 | static inline bool of_check_coupling_data(struct regulator_dev *rdev) |
111 | { |
112 | return false; |
113 | } |
114 | |
115 | #endif |
116 | enum regulator_get_type { |
117 | NORMAL_GET, |
118 | EXCLUSIVE_GET, |
119 | OPTIONAL_GET, |
120 | MAX_GET_TYPE |
121 | }; |
122 | |
123 | struct regulator *_regulator_get(struct device *dev, const char *id, |
124 | enum regulator_get_type get_type); |
125 | int _regulator_bulk_get(struct device *dev, int num_consumers, |
126 | struct regulator_bulk_data *consumers, enum regulator_get_type get_type); |
127 | #endif |
128 | |