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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 | ||
18 | struct regulator_voltage { | |
19 | int min_uV; | |
20 | int max_uV; | |
21 | }; | |
22 | ||
0cdfcc0f MB |
23 | /* |
24 | * struct regulator | |
25 | * | |
26 | * One for each consumer device. | |
c360a6df CZ |
27 | * @voltage - a voltage array for each state of runtime, i.e.: |
28 | * PM_SUSPEND_ON | |
29 | * PM_SUSPEND_TO_IDLE | |
30 | * PM_SUSPEND_STANDBY | |
31 | * PM_SUSPEND_MEM | |
32 | * PM_SUSPEND_MAX | |
0cdfcc0f MB |
33 | */ |
34 | struct regulator { | |
35 | struct device *dev; | |
36 | struct list_head list; | |
37 | unsigned int always_on:1; | |
38 | unsigned int bypass:1; | |
b59b6544 | 39 | unsigned int device_link:1; |
0cdfcc0f | 40 | int uA_load; |
5451781d DA |
41 | unsigned int enable_count; |
42 | unsigned int deferred_disables; | |
c360a6df | 43 | struct regulator_voltage voltage[REGULATOR_STATES_NUM]; |
0630b614 | 44 | const char *supply_name; |
0cdfcc0f MB |
45 | struct device_attribute dev_attr; |
46 | struct regulator_dev *rdev; | |
47 | struct dentry *debugfs; | |
48 | }; | |
49 | ||
148096af MP |
50 | extern struct class regulator_class; |
51 | ||
52 | static inline struct regulator_dev *dev_to_rdev(struct device *dev) | |
53 | { | |
54 | return container_of(dev, struct regulator_dev, dev); | |
55 | } | |
56 | ||
ef126a4a | 57 | #ifdef CONFIG_OF |
08813e0e | 58 | struct regulator_dev *of_find_regulator_by_node(struct device_node *np); |
a0c7b164 MB |
59 | struct regulator_init_data *regulator_of_get_init_data(struct device *dev, |
60 | const struct regulator_desc *desc, | |
bfa21a0d | 61 | struct regulator_config *config, |
a0c7b164 | 62 | struct device_node **node); |
a085a31a MP |
63 | |
64 | struct regulator_dev *of_parse_coupled_regulator(struct regulator_dev *rdev, | |
65 | int index); | |
66 | ||
67 | int of_get_n_coupled(struct regulator_dev *rdev); | |
68 | ||
69 | bool of_check_coupling_data(struct regulator_dev *rdev); | |
70 | ||
ef126a4a | 71 | #else |
08813e0e CD |
72 | static inline struct regulator_dev * |
73 | of_find_regulator_by_node(struct device_node *np) | |
74 | { | |
75 | return NULL; | |
76 | } | |
77 | ||
ef126a4a MB |
78 | static inline struct regulator_init_data * |
79 | regulator_of_get_init_data(struct device *dev, | |
80 | const struct regulator_desc *desc, | |
bfa21a0d | 81 | struct regulator_config *config, |
ef126a4a MB |
82 | struct device_node **node) |
83 | { | |
84 | return NULL; | |
85 | } | |
a0c7b164 | 86 | |
a085a31a MP |
87 | static inline struct regulator_dev * |
88 | of_parse_coupled_regulator(struct regulator_dev *rdev, | |
89 | int index) | |
90 | { | |
91 | return NULL; | |
92 | } | |
93 | ||
94 | static inline int of_get_n_coupled(struct regulator_dev *rdev) | |
95 | { | |
96 | return 0; | |
97 | } | |
98 | ||
99 | static inline bool of_check_coupling_data(struct regulator_dev *rdev) | |
100 | { | |
101 | return false; | |
102 | } | |
103 | ||
104 | #endif | |
a8bd42a9 DT |
105 | enum regulator_get_type { |
106 | NORMAL_GET, | |
107 | EXCLUSIVE_GET, | |
108 | OPTIONAL_GET, | |
109 | MAX_GET_TYPE | |
110 | }; | |
111 | ||
112 | struct regulator *_regulator_get(struct device *dev, const char *id, | |
113 | enum regulator_get_type get_type); | |
0cdfcc0f | 114 | #endif |