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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; | |
5451781d DA |
45 | unsigned int enable_count; |
46 | unsigned int deferred_disables; | |
c360a6df | 47 | struct regulator_voltage voltage[REGULATOR_STATES_NUM]; |
0630b614 | 48 | const char *supply_name; |
0cdfcc0f MB |
49 | struct device_attribute dev_attr; |
50 | struct regulator_dev *rdev; | |
51 | struct dentry *debugfs; | |
52 | }; | |
53 | ||
148096af MP |
54 | extern struct class regulator_class; |
55 | ||
56 | static inline struct regulator_dev *dev_to_rdev(struct device *dev) | |
57 | { | |
58 | return container_of(dev, struct regulator_dev, dev); | |
59 | } | |
60 | ||
ef126a4a | 61 | #ifdef CONFIG_OF |
08813e0e | 62 | struct regulator_dev *of_find_regulator_by_node(struct device_node *np); |
a0c7b164 MB |
63 | struct regulator_init_data *regulator_of_get_init_data(struct device *dev, |
64 | const struct regulator_desc *desc, | |
bfa21a0d | 65 | struct regulator_config *config, |
a0c7b164 | 66 | struct device_node **node); |
a085a31a MP |
67 | |
68 | struct regulator_dev *of_parse_coupled_regulator(struct regulator_dev *rdev, | |
69 | int index); | |
70 | ||
71 | int of_get_n_coupled(struct regulator_dev *rdev); | |
72 | ||
73 | bool of_check_coupling_data(struct regulator_dev *rdev); | |
74 | ||
ef126a4a | 75 | #else |
08813e0e CD |
76 | static inline struct regulator_dev * |
77 | of_find_regulator_by_node(struct device_node *np) | |
78 | { | |
79 | return NULL; | |
80 | } | |
81 | ||
ef126a4a MB |
82 | static inline struct regulator_init_data * |
83 | regulator_of_get_init_data(struct device *dev, | |
84 | const struct regulator_desc *desc, | |
bfa21a0d | 85 | struct regulator_config *config, |
ef126a4a MB |
86 | struct device_node **node) |
87 | { | |
88 | return NULL; | |
89 | } | |
a0c7b164 | 90 | |
a085a31a MP |
91 | static inline struct regulator_dev * |
92 | of_parse_coupled_regulator(struct regulator_dev *rdev, | |
93 | int index) | |
94 | { | |
95 | return NULL; | |
96 | } | |
97 | ||
98 | static inline int of_get_n_coupled(struct regulator_dev *rdev) | |
99 | { | |
100 | return 0; | |
101 | } | |
102 | ||
103 | static inline bool of_check_coupling_data(struct regulator_dev *rdev) | |
104 | { | |
105 | return false; | |
106 | } | |
107 | ||
108 | #endif | |
a8bd42a9 DT |
109 | enum regulator_get_type { |
110 | NORMAL_GET, | |
111 | EXCLUSIVE_GET, | |
112 | OPTIONAL_GET, | |
113 | MAX_GET_TYPE | |
114 | }; | |
115 | ||
116 | struct regulator *_regulator_get(struct device *dev, const char *id, | |
117 | enum regulator_get_type get_type); | |
0cdfcc0f | 118 | #endif |