/*
   * Core driver interface for TI TPS65090 PMIC family
   *
   * Copyright (C) 2012 NVIDIA Corporation
   *
   * 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.
   *
   * This program is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   * more details.
   *
   * You should have received a copy of the GNU General Public License along
   * with this program; if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
   *
   */
  
  #ifndef __LINUX_MFD_TPS65090_H
  #define __LINUX_MFD_TPS65090_H
  
  #include <linux/irq.h>
  #include <linux/regmap.h>
  
  /* TPS65090 IRQs */
  enum {
  	TPS65090_IRQ_INTERRUPT,
  	TPS65090_IRQ_VAC_STATUS_CHANGE,
  	TPS65090_IRQ_VSYS_STATUS_CHANGE,
  	TPS65090_IRQ_BAT_STATUS_CHANGE,
  	TPS65090_IRQ_CHARGING_STATUS_CHANGE,
  	TPS65090_IRQ_CHARGING_COMPLETE,
  	TPS65090_IRQ_OVERLOAD_DCDC1,
  	TPS65090_IRQ_OVERLOAD_DCDC2,
  	TPS65090_IRQ_OVERLOAD_DCDC3,
  	TPS65090_IRQ_OVERLOAD_FET1,
  	TPS65090_IRQ_OVERLOAD_FET2,
  	TPS65090_IRQ_OVERLOAD_FET3,
  	TPS65090_IRQ_OVERLOAD_FET4,
  	TPS65090_IRQ_OVERLOAD_FET5,
  	TPS65090_IRQ_OVERLOAD_FET6,
  	TPS65090_IRQ_OVERLOAD_FET7,
  };
  
  /* TPS65090 Regulator ID */
  enum {
  	TPS65090_REGULATOR_DCDC1,
  	TPS65090_REGULATOR_DCDC2,
  	TPS65090_REGULATOR_DCDC3,
  	TPS65090_REGULATOR_FET1,
  	TPS65090_REGULATOR_FET2,
  	TPS65090_REGULATOR_FET3,
  	TPS65090_REGULATOR_FET4,
  	TPS65090_REGULATOR_FET5,
  	TPS65090_REGULATOR_FET6,
  	TPS65090_REGULATOR_FET7,
  	TPS65090_REGULATOR_LDO1,
  	TPS65090_REGULATOR_LDO2,
  
  	/* Last entry for maximum ID */
  	TPS65090_REGULATOR_MAX,
  };
  
  struct tps65090 {
  	struct device		*dev;
  	struct regmap		*rmap;
  	struct regmap_irq_chip_data *irq_data;
  };
  
  /*
   * struct tps65090_regulator_plat_data
   *
   * @reg_init_data: The regulator init data.
   * @enable_ext_control: Enable extrenal control or not. Only available for
   *     DCDC1, DCDC2 and DCDC3.
   * @gpio: Gpio number if external control is enabled and controlled through
   *     gpio.
   */
  struct tps65090_regulator_plat_data {
  	struct regulator_init_data *reg_init_data;
  	bool enable_ext_control;
  	int gpio;
  };
  
  struct tps65090_platform_data {
  	int irq_base;
  
  	char **supplied_to;
  	size_t num_supplicants;
  	int enable_low_current_chrg;
  
  	struct tps65090_regulator_plat_data *reg_pdata[TPS65090_REGULATOR_MAX];
  };
  
  /*
   * NOTE: the functions below are not intended for use outside
   * of the TPS65090 sub-device drivers
   */
  static inline int tps65090_write(struct device *dev, int reg, uint8_t val)
  {
  	struct tps65090 *tps = dev_get_drvdata(dev);
  
  	return regmap_write(tps->rmap, reg, val);
  }
  
  static inline int tps65090_read(struct device *dev, int reg, uint8_t *val)
  {
  	struct tps65090 *tps = dev_get_drvdata(dev);
  	unsigned int temp_val;
  	int ret;
  
  	ret = regmap_read(tps->rmap, reg, &temp_val);
  	if (!ret)
  		*val = temp_val;
  	return ret;
  }
  
  static inline int tps65090_set_bits(struct device *dev, int reg,
  		uint8_t bit_num)
  {
  	struct tps65090 *tps = dev_get_drvdata(dev);
  
  	return regmap_update_bits(tps->rmap, reg, BIT(bit_num), ~0u);
  }
  
  static inline int tps65090_clr_bits(struct device *dev, int reg,
  		uint8_t bit_num)
  {
  	struct tps65090 *tps = dev_get_drvdata(dev);
  
  	return regmap_update_bits(tps->rmap, reg, BIT(bit_num), 0u);
  }
  
  #endif /*__LINUX_MFD_TPS65090_H */