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 };
25
26 struct mc13xxx_regulator_priv {
27 struct mc13xxx *mc13xxx;
28 u32 powermisc_pwgt_state;
29 struct mc13xxx_regulator *mc13xxx_regulators;
30 int num_regulators;
31 struct regulator_dev *regulators[];
32 };
33
34 extern int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev,
35 int min_uV, int max_uV, unsigned *selector);
36
37 #ifdef CONFIG_OF
38 extern int mc13xxx_get_num_regulators_dt(struct platform_device *pdev);
39 extern struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
40 struct platform_device *pdev, struct mc13xxx_regulator *regulators,
41 int num_regulators);
42 #else
mc13xxx_get_num_regulators_dt(struct platform_device * pdev)43 static inline int mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
44 {
45 return -ENODEV;
46 }
47
mc13xxx_parse_regulators_dt(struct platform_device * pdev,struct mc13xxx_regulator * regulators,int num_regulators)48 static inline struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
49 struct platform_device *pdev, struct mc13xxx_regulator *regulators,
50 int num_regulators)
51 {
52 return NULL;
53 }
54 #endif
55
56 extern struct regulator_ops mc13xxx_regulator_ops;
57 extern struct regulator_ops mc13xxx_fixed_regulator_ops;
58
59 #define MC13xxx_DEFINE(prefix, _name, _reg, _vsel_reg, _voltages, _ops) \
60 [prefix ## _name] = { \
61 .desc = { \
62 .name = #_name, \
63 .n_voltages = ARRAY_SIZE(_voltages), \
64 .volt_table = _voltages, \
65 .ops = &_ops, \
66 .type = REGULATOR_VOLTAGE, \
67 .id = prefix ## _name, \
68 .owner = THIS_MODULE, \
69 }, \
70 .reg = prefix ## _reg, \
71 .enable_bit = prefix ## _reg ## _ ## _name ## EN, \
72 .vsel_reg = prefix ## _vsel_reg, \
73 .vsel_shift = prefix ## _vsel_reg ## _ ## _name ## VSEL,\
74 .vsel_mask = prefix ## _vsel_reg ## _ ## _name ## VSEL_M,\
75 }
76
77 #define MC13xxx_FIXED_DEFINE(prefix, _name, _reg, _voltages, _ops) \
78 [prefix ## _name] = { \
79 .desc = { \
80 .name = #_name, \
81 .n_voltages = ARRAY_SIZE(_voltages), \
82 .volt_table = _voltages, \
83 .ops = &_ops, \
84 .type = REGULATOR_VOLTAGE, \
85 .id = prefix ## _name, \
86 .owner = THIS_MODULE, \
87 }, \
88 .reg = prefix ## _reg, \
89 .enable_bit = prefix ## _reg ## _ ## _name ## EN, \
90 }
91
92 #define MC13xxx_GPO_DEFINE(prefix, _name, _reg, _voltages, _ops) \
93 [prefix ## _name] = { \
94 .desc = { \
95 .name = #_name, \
96 .n_voltages = ARRAY_SIZE(_voltages), \
97 .volt_table = _voltages, \
98 .ops = &_ops, \
99 .type = REGULATOR_VOLTAGE, \
100 .id = prefix ## _name, \
101 .owner = THIS_MODULE, \
102 }, \
103 .reg = prefix ## _reg, \
104 .enable_bit = prefix ## _reg ## _ ## _name ## EN, \
105 }
106
107 #define MC13xxx_DEFINE_SW(_name, _reg, _vsel_reg, _voltages, ops) \
108 MC13xxx_DEFINE(SW, _name, _reg, _vsel_reg, _voltages, ops)
109 #define MC13xxx_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages, ops) \
110 MC13xxx_DEFINE(REGU, _name, _reg, _vsel_reg, _voltages, ops)
111
112 #endif
113