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drivers/regulator/mc13xxx.h 3.68 KB
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  /*
   * mc13xxx.h - regulators for the Freescale mc13xxx PMIC
   *
   *  Copyright (C) 2010 Yong Shen <yong.shen@linaro.org>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   */
  
  #ifndef __LINUX_REGULATOR_MC13XXX_H
  #define __LINUX_REGULATOR_MC13XXX_H
  
  #include <linux/regulator/driver.h>
  
  struct mc13xxx_regulator {
  	struct regulator_desc desc;
  	int reg;
  	int enable_bit;
  	int vsel_reg;
  	int vsel_shift;
  	int vsel_mask;
  	int hi_bit;
  	int const *voltages;
  };
  
  struct mc13xxx_regulator_priv {
  	struct mc13xxx *mc13xxx;
  	u32 powermisc_pwgt_state;
  	struct mc13xxx_regulator *mc13xxx_regulators;
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  	int num_regulators;
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  	struct regulator_dev *regulators[];
  };
  
  extern int mc13xxx_sw_regulator(struct regulator_dev *rdev);
  extern int mc13xxx_sw_regulator_is_enabled(struct regulator_dev *rdev);
  extern int mc13xxx_get_best_voltage_index(struct regulator_dev *rdev,
  						int min_uV, int max_uV);
  extern int mc13xxx_regulator_list_voltage(struct regulator_dev *rdev,
  						unsigned selector);
  extern int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev,
  		int min_uV, int max_uV, unsigned *selector);
  extern int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev);
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  #ifdef CONFIG_OF
  extern int mc13xxx_get_num_regulators_dt(struct platform_device *pdev);
  extern struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
  	struct platform_device *pdev, struct mc13xxx_regulator *regulators,
  	int num_regulators);
  #else
  static inline int mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
  {
  	return -ENODEV;
  }
  
  static inline struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
  	struct platform_device *pdev, struct mc13xxx_regulator *regulators,
  	int num_regulators)
  {
  	return NULL;
  }
  #endif
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  extern struct regulator_ops mc13xxx_regulator_ops;
  extern struct regulator_ops mc13xxx_fixed_regulator_ops;
  
  #define MC13xxx_DEFINE(prefix, _name, _reg, _vsel_reg, _voltages, _ops)	\
  	[prefix ## _name] = {				\
  		.desc = {						\
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  			.name = #_name,					\
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  			.n_voltages = ARRAY_SIZE(_voltages),		\
  			.ops = &_ops,			\
  			.type = REGULATOR_VOLTAGE,			\
  			.id = prefix ## _name,		\
  			.owner = THIS_MODULE,				\
  		},							\
  		.reg = prefix ## _reg,				\
  		.enable_bit = prefix ## _reg ## _ ## _name ## EN,	\
  		.vsel_reg = prefix ## _vsel_reg,			\
  		.vsel_shift = prefix ## _vsel_reg ## _ ## _name ## VSEL,\
  		.vsel_mask = prefix ## _vsel_reg ## _ ## _name ## VSEL_M,\
  		.voltages =  _voltages,					\
  	}
  
  #define MC13xxx_FIXED_DEFINE(prefix, _name, _reg, _voltages, _ops)	\
  	[prefix ## _name] = {				\
  		.desc = {						\
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  			.name = #_name,					\
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  			.n_voltages = ARRAY_SIZE(_voltages),		\
  			.ops = &_ops,		\
  			.type = REGULATOR_VOLTAGE,			\
  			.id = prefix ## _name,		\
  			.owner = THIS_MODULE,				\
  		},							\
  		.reg = prefix ## _reg,				\
  		.enable_bit = prefix ## _reg ## _ ## _name ## EN,	\
  		.voltages =  _voltages,					\
  	}
  
  #define MC13xxx_GPO_DEFINE(prefix, _name, _reg,  _voltages, _ops)	\
  	[prefix ## _name] = {				\
  		.desc = {						\
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  			.name = #_name,					\
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  			.n_voltages = ARRAY_SIZE(_voltages),		\
  			.ops = &_ops,		\
  			.type = REGULATOR_VOLTAGE,			\
  			.id = prefix ## _name,		\
  			.owner = THIS_MODULE,				\
  		},							\
  		.reg = prefix ## _reg,				\
  		.enable_bit = prefix ## _reg ## _ ## _name ## EN,	\
  		.voltages =  _voltages,					\
  	}
  
  #define MC13xxx_DEFINE_SW(_name, _reg, _vsel_reg, _voltages, ops)	\
  	MC13xxx_DEFINE(SW, _name, _reg, _vsel_reg, _voltages, ops)
  #define MC13xxx_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages, ops)	\
  	MC13xxx_DEFINE(REGU, _name, _reg, _vsel_reg, _voltages, ops)
  
  #endif