drivers/regulator/mc13xxx.h

   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 };
  26
  27 struct mc13xxx_regulator_priv {
  28         struct mc13xxx *mc13xxx;
  29         u32 powermisc_pwgt_state;
  30         struct mc13xxx_regulator *mc13xxx_regulators;
  31         int num_regulators;
  32         struct regulator_dev *regulators[];
  33 };
  34
  35 extern int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev,
  36                 int min_uV, int max_uV, unsigned *selector);
  37 extern int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev);
  38
  39 #ifdef CONFIG_OF
  40 extern int mc13xxx_get_num_regulators_dt(struct platform_device *pdev);
  41 extern struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
  42         struct platform_device *pdev, struct mc13xxx_regulator *regulators,
  43         int num_regulators);
  44 #else
  45 static inline int mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
  46 {
  47         return -ENODEV;
  48 }
  49
  50 static inline struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
  51         struct platform_device *pdev, struct mc13xxx_regulator *regulators,
  52         int num_regulators)
  53 {
  54         return NULL;
  55 }
  56 #endif
  57
  58 extern struct regulator_ops mc13xxx_regulator_ops;
  59 extern struct regulator_ops mc13xxx_fixed_regulator_ops;
  60
  61 #define MC13xxx_DEFINE(prefix, _name, _reg, _vsel_reg, _voltages, _ops) \
  62         [prefix ## _name] = {                           \
  63                 .desc = {                                               \
  64                         .name = #_name,                                 \
  65                         .n_voltages = ARRAY_SIZE(_voltages),            \
  66                         .volt_table =  _voltages,                       \
  67                         .ops = &_ops,                   \
  68                         .type = REGULATOR_VOLTAGE,                      \
  69                         .id = prefix ## _name,          \
  70                         .owner = THIS_MODULE,                           \
  71                 },                                                      \
  72                 .reg = prefix ## _reg,                          \
  73                 .enable_bit = prefix ## _reg ## _ ## _name ## EN,       \
  74                 .vsel_reg = prefix ## _vsel_reg,                        \
  75                 .vsel_shift = prefix ## _vsel_reg ## _ ## _name ## VSEL,\
  76                 .vsel_mask = prefix ## _vsel_reg ## _ ## _name ## VSEL_M,\
  77         }
  78
  79 #define MC13xxx_FIXED_DEFINE(prefix, _name, _reg, _voltages, _ops)      \
  80         [prefix ## _name] = {                           \
  81                 .desc = {                                               \
  82                         .name = #_name,                                 \
  83                         .n_voltages = ARRAY_SIZE(_voltages),            \
  84                         .volt_table =  _voltages,                       \
  85                         .ops = &_ops,           \
  86                         .type = REGULATOR_VOLTAGE,                      \
  87                         .id = prefix ## _name,          \
  88                         .owner = THIS_MODULE,                           \
  89                 },                                                      \
  90                 .reg = prefix ## _reg,                          \
  91                 .enable_bit = prefix ## _reg ## _ ## _name ## EN,       \
  92         }
  93
  94 #define MC13xxx_GPO_DEFINE(prefix, _name, _reg,  _voltages, _ops)       \
  95         [prefix ## _name] = {                           \
  96                 .desc = {                                               \
  97                         .name = #_name,                                 \
  98                         .n_voltages = ARRAY_SIZE(_voltages),            \
  99                         .volt_table =  _voltages,                       \
 100                         .ops = &_ops,           \
 101                         .type = REGULATOR_VOLTAGE,                      \
 102                         .id = prefix ## _name,          \
 103                         .owner = THIS_MODULE,                           \
 104                 },                                                      \
 105                 .reg = prefix ## _reg,                          \
 106                 .enable_bit = prefix ## _reg ## _ ## _name ## EN,       \
 107         }
 108
 109 #define MC13xxx_DEFINE_SW(_name, _reg, _vsel_reg, _voltages, ops)       \
 110         MC13xxx_DEFINE(SW, _name, _reg, _vsel_reg, _voltages, ops)
 111 #define MC13xxx_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages, ops)     \
 112         MC13xxx_DEFINE(REGU, _name, _reg, _vsel_reg, _voltages, ops)
 113
 114 #endif