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