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