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         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
  52 static inline int mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
  53 {
  54         return -ENODEV;
  55 }
  56
  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