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0cdfcc0f MB |
1 | /* |
2 | * internal.h -- Voltage/Current Regulator framework internal code | |
3 | * | |
4 | * Copyright 2007, 2008 Wolfson Microelectronics PLC. | |
5 | * Copyright 2008 SlimLogic Ltd. | |
6 | * | |
7 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License as published by the | |
11 | * Free Software Foundation; either version 2 of the License, or (at your | |
12 | * option) any later version. | |
13 | * | |
14 | */ | |
15 | ||
16 | #ifndef __REGULATOR_INTERNAL_H | |
17 | #define __REGULATOR_INTERNAL_H | |
18 | ||
c360a6df CZ |
19 | #include <linux/suspend.h> |
20 | ||
21 | #define REGULATOR_STATES_NUM (PM_SUSPEND_MAX + 1) | |
22 | ||
23 | struct regulator_voltage { | |
24 | int min_uV; | |
25 | int max_uV; | |
26 | }; | |
27 | ||
0cdfcc0f MB |
28 | /* |
29 | * struct regulator | |
30 | * | |
31 | * One for each consumer device. | |
c360a6df CZ |
32 | * @voltage - a voltage array for each state of runtime, i.e.: |
33 | * PM_SUSPEND_ON | |
34 | * PM_SUSPEND_TO_IDLE | |
35 | * PM_SUSPEND_STANDBY | |
36 | * PM_SUSPEND_MEM | |
37 | * PM_SUSPEND_MAX | |
0cdfcc0f MB |
38 | */ |
39 | struct regulator { | |
40 | struct device *dev; | |
41 | struct list_head list; | |
42 | unsigned int always_on:1; | |
43 | unsigned int bypass:1; | |
44 | int uA_load; | |
c360a6df | 45 | struct regulator_voltage voltage[REGULATOR_STATES_NUM]; |
0630b614 | 46 | const char *supply_name; |
0cdfcc0f MB |
47 | struct device_attribute dev_attr; |
48 | struct regulator_dev *rdev; | |
49 | struct dentry *debugfs; | |
50 | }; | |
51 | ||
148096af MP |
52 | extern struct class regulator_class; |
53 | ||
54 | static inline struct regulator_dev *dev_to_rdev(struct device *dev) | |
55 | { | |
56 | return container_of(dev, struct regulator_dev, dev); | |
57 | } | |
58 | ||
ef126a4a | 59 | #ifdef CONFIG_OF |
08813e0e | 60 | struct regulator_dev *of_find_regulator_by_node(struct device_node *np); |
a0c7b164 MB |
61 | struct regulator_init_data *regulator_of_get_init_data(struct device *dev, |
62 | const struct regulator_desc *desc, | |
bfa21a0d | 63 | struct regulator_config *config, |
a0c7b164 | 64 | struct device_node **node); |
a085a31a MP |
65 | |
66 | struct regulator_dev *of_parse_coupled_regulator(struct regulator_dev *rdev, | |
67 | int index); | |
68 | ||
69 | int of_get_n_coupled(struct regulator_dev *rdev); | |
70 | ||
71 | bool of_check_coupling_data(struct regulator_dev *rdev); | |
72 | ||
ef126a4a | 73 | #else |
08813e0e CD |
74 | static inline struct regulator_dev * |
75 | of_find_regulator_by_node(struct device_node *np) | |
76 | { | |
77 | return NULL; | |
78 | } | |
79 | ||
ef126a4a MB |
80 | static inline struct regulator_init_data * |
81 | regulator_of_get_init_data(struct device *dev, | |
82 | const struct regulator_desc *desc, | |
bfa21a0d | 83 | struct regulator_config *config, |
ef126a4a MB |
84 | struct device_node **node) |
85 | { | |
86 | return NULL; | |
87 | } | |
a0c7b164 | 88 | |
a085a31a MP |
89 | static inline struct regulator_dev * |
90 | of_parse_coupled_regulator(struct regulator_dev *rdev, | |
91 | int index) | |
92 | { | |
93 | return NULL; | |
94 | } | |
95 | ||
96 | static inline int of_get_n_coupled(struct regulator_dev *rdev) | |
97 | { | |
98 | return 0; | |
99 | } | |
100 | ||
101 | static inline bool of_check_coupling_data(struct regulator_dev *rdev) | |
102 | { | |
103 | return false; | |
104 | } | |
105 | ||
106 | #endif | |
a8bd42a9 DT |
107 | enum regulator_get_type { |
108 | NORMAL_GET, | |
109 | EXCLUSIVE_GET, | |
110 | OPTIONAL_GET, | |
111 | MAX_GET_TYPE | |
112 | }; | |
113 | ||
114 | struct regulator *_regulator_get(struct device *dev, const char *id, | |
115 | enum regulator_get_type get_type); | |
0cdfcc0f | 116 | #endif |