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2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
0cdfcc0f MB |
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> | |
0cdfcc0f MB |
9 | */ |
10 | ||
11 | #ifndef __REGULATOR_INTERNAL_H | |
12 | #define __REGULATOR_INTERNAL_H | |
13 | ||
c360a6df CZ |
14 | #include <linux/suspend.h> |
15 | ||
16 | #define REGULATOR_STATES_NUM (PM_SUSPEND_MAX + 1) | |
17 | ||
157d2230 MV |
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 | ||
c360a6df CZ |
29 | struct regulator_voltage { |
30 | int min_uV; | |
31 | int max_uV; | |
32 | }; | |
33 | ||
0cdfcc0f MB |
34 | /* |
35 | * struct regulator | |
36 | * | |
37 | * One for each consumer device. | |
c360a6df CZ |
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 | |
0cdfcc0f MB |
44 | */ |
45 | struct regulator { | |
46 | struct device *dev; | |
47 | struct list_head list; | |
48 | unsigned int always_on:1; | |
49 | unsigned int bypass:1; | |
b59b6544 | 50 | unsigned int device_link:1; |
0cdfcc0f | 51 | int uA_load; |
5451781d DA |
52 | unsigned int enable_count; |
53 | unsigned int deferred_disables; | |
c360a6df | 54 | struct regulator_voltage voltage[REGULATOR_STATES_NUM]; |
0630b614 | 55 | const char *supply_name; |
0cdfcc0f MB |
56 | struct device_attribute dev_attr; |
57 | struct regulator_dev *rdev; | |
58 | struct dentry *debugfs; | |
59 | }; | |
60 | ||
148096af MP |
61 | extern 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 | ||
ef126a4a | 68 | #ifdef CONFIG_OF |
08813e0e | 69 | struct regulator_dev *of_find_regulator_by_node(struct device_node *np); |
a0c7b164 MB |
70 | struct regulator_init_data *regulator_of_get_init_data(struct device *dev, |
71 | const struct regulator_desc *desc, | |
bfa21a0d | 72 | struct regulator_config *config, |
a0c7b164 | 73 | struct device_node **node); |
a085a31a MP |
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 | ||
ef126a4a | 82 | #else |
08813e0e CD |
83 | static inline struct regulator_dev * |
84 | of_find_regulator_by_node(struct device_node *np) | |
85 | { | |
86 | return NULL; | |
87 | } | |
88 | ||
ef126a4a MB |
89 | static inline struct regulator_init_data * |
90 | regulator_of_get_init_data(struct device *dev, | |
91 | const struct regulator_desc *desc, | |
bfa21a0d | 92 | struct regulator_config *config, |
ef126a4a MB |
93 | struct device_node **node) |
94 | { | |
95 | return NULL; | |
96 | } | |
a0c7b164 | 97 | |
a085a31a MP |
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 | |
a8bd42a9 DT |
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); | |
0cdfcc0f | 125 | #endif |