tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
17struct 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
28struct 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
36extern int mc13xxx_sw_regulator(struct regulator_dev *rdev);
37extern int mc13xxx_sw_regulator_is_enabled(struct regulator_dev *rdev);
38extern int mc13xxx_regulator_list_voltage(struct regulator_dev *rdev,
39 unsigned selector);
40extern int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev,
41 int min_uV, int max_uV, unsigned *selector);
42extern int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev);
43
44#ifdef CONFIG_OF
45extern int mc13xxx_get_num_regulators_dt(struct platform_device *pdev);
46extern struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
47 struct platform_device *pdev, struct mc13xxx_regulator *regulators,
48 int num_regulators);
49#else
50static inline int mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
51{
52 return -ENODEV;
53}
54
55static inline struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
56 struct platform_device *pdev, struct mc13xxx_regulator *regulators,
57 int num_regulators)
58{
59 return NULL;
60}
61#endif
62
63extern struct regulator_ops mc13xxx_regulator_ops;
64extern struct regulator_ops mc13xxx_fixed_regulator_ops;
65
66#define MC13xxx_DEFINE(prefix, _name, _reg, _vsel_reg, _voltages, _ops) \
67 [prefix ## _name] = { \
68 .desc = { \
69 .name = #_name, \
70 .n_voltages = ARRAY_SIZE(_voltages), \
71 .ops = &_ops, \
72 .type = REGULATOR_VOLTAGE, \
73 .id = prefix ## _name, \
74 .owner = THIS_MODULE, \
75 }, \
76 .reg = prefix ## _reg, \
77 .enable_bit = prefix ## _reg ## _ ## _name ## EN, \
78 .vsel_reg = prefix ## _vsel_reg, \
79 .vsel_shift = prefix ## _vsel_reg ## _ ## _name ## VSEL,\
80 .vsel_mask = prefix ## _vsel_reg ## _ ## _name ## VSEL_M,\
81 .voltages = _voltages, \
82 }
83
84#define MC13xxx_FIXED_DEFINE(prefix, _name, _reg, _voltages, _ops) \
85 [prefix ## _name] = { \
86 .desc = { \
87 .name = #_name, \
88 .n_voltages = ARRAY_SIZE(_voltages), \
89 .ops = &_ops, \
90 .type = REGULATOR_VOLTAGE, \
91 .id = prefix ## _name, \
92 .owner = THIS_MODULE, \
93 }, \
94 .reg = prefix ## _reg, \
95 .enable_bit = prefix ## _reg ## _ ## _name ## EN, \
96 .voltages = _voltages, \
97 }
98
99#define MC13xxx_GPO_DEFINE(prefix, _name, _reg, _voltages, _ops) \
100 [prefix ## _name] = { \
101 .desc = { \
102 .name = #_name, \
103 .n_voltages = ARRAY_SIZE(_voltages), \
104 .ops = &_ops, \
105 .type = REGULATOR_VOLTAGE, \
106 .id = prefix ## _name, \
107 .owner = THIS_MODULE, \
108 }, \
109 .reg = prefix ## _reg, \
110 .enable_bit = prefix ## _reg ## _ ## _name ## EN, \
111 .voltages = _voltages, \
112 }
113
114#define MC13xxx_DEFINE_SW(_name, _reg, _vsel_reg, _voltages, ops) \
115 MC13xxx_DEFINE(SW, _name, _reg, _vsel_reg, _voltages, ops)
116#define MC13xxx_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages, ops) \
117 MC13xxx_DEFINE(REGU, _name, _reg, _vsel_reg, _voltages, ops)
118
119#endif