1 /*
2 * mc13xxx.h - regulators for the Freescale mc13xxx PMIC
3 *
4 * Copyright (C) 2010 Yong Shen <yong.shen@linaro.org>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12 #ifndef __LINUX_REGULATOR_MC13XXX_H
13 #define __LINUX_REGULATOR_MC13XXX_H
14
15 #include <linux/regulator/driver.h>
16
17 struct mc13xxx_regulator {
18 struct regulator_desc desc;
19 int reg;
20 int enable_bit;
21 int vsel_reg;
22 int vsel_shift;
23 int vsel_mask;
24 int hi_bit;
25 int const *voltages;
26 };
27
28 struct mc13xxx_regulator_priv {
29 struct mc13xxx *mc13xxx;
30 u32 powermisc_pwgt_state;
31 struct mc13xxx_regulator *mc13xxx_regulators;
32 int num_regulators;
33 struct regulator_dev *regulators[];
34 };
35
36 extern int mc13xxx_sw_regulator(struct regulator_dev *rdev);
37 extern int mc13xxx_sw_regulator_is_enabled(struct regulator_dev *rdev);
38 extern int mc13xxx_get_best_voltage_index(struct regulator_dev *rdev,
39 int min_uV, int max_uV);
40 extern int mc13xxx_regulator_list_voltage(struct regulator_dev *rdev,
41 unsigned selector);
42 extern int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev,
43 int min_uV, int max_uV, unsigned *selector);
44 extern int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev);
45
46 #ifdef CONFIG_OF
47 extern int mc13xxx_get_num_regulators_dt(struct platform_device *pdev);
48 extern struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
49 struct platform_device *pdev, struct mc13xxx_regulator *regulators,
50 int num_regulators);
51 #else
mc13xxx_get_num_regulators_dt(struct platform_device * pdev)52 static inline int mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
53 {
54 return -ENODEV;
55 }
56
mc13xxx_parse_regulators_dt(struct platform_device * pdev,struct mc13xxx_regulator * regulators,int num_regulators)57 static inline struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
58 struct platform_device *pdev, struct mc13xxx_regulator *regulators,
59 int num_regulators)
60 {
61 return NULL;
62 }
63 #endif
64
65 extern struct regulator_ops mc13xxx_regulator_ops;
66 extern struct regulator_ops mc13xxx_fixed_regulator_ops;
67
68 #define MC13xxx_DEFINE(prefix, _name, _reg, _vsel_reg, _voltages, _ops) \
69 [prefix ## _name] = { \
70 .desc = { \
71 .name = #_name, \
72 .n_voltages = ARRAY_SIZE(_voltages), \
73 .ops = &_ops, \
74 .type = REGULATOR_VOLTAGE, \
75 .id = prefix ## _name, \
76 .owner = THIS_MODULE, \
77 }, \
78 .reg = prefix ## _reg, \
79 .enable_bit = prefix ## _reg ## _ ## _name ## EN, \
80 .vsel_reg = prefix ## _vsel_reg, \
81 .vsel_shift = prefix ## _vsel_reg ## _ ## _name ## VSEL,\
82 .vsel_mask = prefix ## _vsel_reg ## _ ## _name ## VSEL_M,\
83 .voltages = _voltages, \
84 }
85
86 #define MC13xxx_FIXED_DEFINE(prefix, _name, _reg, _voltages, _ops) \
87 [prefix ## _name] = { \
88 .desc = { \
89 .name = #_name, \
90 .n_voltages = ARRAY_SIZE(_voltages), \
91 .ops = &_ops, \
92 .type = REGULATOR_VOLTAGE, \
93 .id = prefix ## _name, \
94 .owner = THIS_MODULE, \
95 }, \
96 .reg = prefix ## _reg, \
97 .enable_bit = prefix ## _reg ## _ ## _name ## EN, \
98 .voltages = _voltages, \
99 }
100
101 #define MC13xxx_GPO_DEFINE(prefix, _name, _reg, _voltages, _ops) \
102 [prefix ## _name] = { \
103 .desc = { \
104 .name = #_name, \
105 .n_voltages = ARRAY_SIZE(_voltages), \
106 .ops = &_ops, \
107 .type = REGULATOR_VOLTAGE, \
108 .id = prefix ## _name, \
109 .owner = THIS_MODULE, \
110 }, \
111 .reg = prefix ## _reg, \
112 .enable_bit = prefix ## _reg ## _ ## _name ## EN, \
113 .voltages = _voltages, \
114 }
115
116 #define MC13xxx_DEFINE_SW(_name, _reg, _vsel_reg, _voltages, ops) \
117 MC13xxx_DEFINE(SW, _name, _reg, _vsel_reg, _voltages, ops)
118 #define MC13xxx_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages, ops) \
119 MC13xxx_DEFINE(REGU, _name, _reg, _vsel_reg, _voltages, ops)
120
121 #endif
122