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 };
  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
  43 static inline int mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
  44 {
  45         return -ENODEV;
  46 }
  47
  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