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/*
* This file is part of the coreboot project.
*
* 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.
*/
#ifndef __MAX77686_H_
#define __MAX77686_H_
enum max77686_regnum {
PMIC_BUCK1 = 0,
PMIC_BUCK2,
PMIC_BUCK3,
PMIC_BUCK4,
PMIC_BUCK5,
PMIC_BUCK6,
PMIC_BUCK7,
PMIC_BUCK8,
PMIC_BUCK9,
PMIC_LDO1,
PMIC_LDO2,
PMIC_LDO3,
PMIC_LDO4,
PMIC_LDO5,
PMIC_LDO6,
PMIC_LDO7,
PMIC_LDO8,
PMIC_LDO9,
PMIC_LDO10,
PMIC_LDO11,
PMIC_LDO12,
PMIC_LDO13,
PMIC_LDO14,
PMIC_LDO15,
PMIC_LDO16,
PMIC_LDO17,
PMIC_LDO18,
PMIC_LDO19,
PMIC_LDO20,
PMIC_LDO21,
PMIC_LDO22,
PMIC_LDO23,
PMIC_LDO24,
PMIC_LDO25,
PMIC_LDO26,
PMIC_EN32KHZ_CP,
};
/**
* struct max77686_para - max77686 register parameters
* @param vol_addr i2c address of the given buck/ldo register
* @param vol_bitpos bit position to be set or clear within register
* @param vol_bitmask bit mask value
* @param reg_enaddr control register address, which enable the given
* given buck/ldo.
* @param reg_enbitpos bit position to be enabled
* @param reg_enbiton value to be written to buck/ldo to make it ON
* @param reg_enbitoff value to be written to buck/ldo to make it OFF
* @param vol_min minimum voltage level supported by given buck/ldo
* @param vol_div voltage division value of given buck/ldo
*/
struct max77686_para {
u8 vol_addr;
u8 vol_bitpos;
u8 vol_bitmask;
u8 reg_enaddr;
u8 reg_enbitpos;
u8 reg_enbitmask;
u8 reg_enbiton;
u8 reg_enbitoff;
u16 vol_min;
u16 vol_div;
};
/* I2C device address for pmic max77686 */
#define MAX77686_I2C_ADDR (0x12 >> 1)
enum {
REG_DISABLE = 0,
REG_ENABLE
};
enum {
MAX77686_MV = 0, /* mili volt */
MAX77686_UV /* micro volt */
};
/**
* This function enables the 32KHz coprocessor clock.
*
* @param bus i2c bus
*
* Return 0 if ok, else -1
*/
int max77686_enable_32khz_cp(unsigned int bus);
/**
* Set the required voltage level of pmic
*
* @param bus i2c bus
* @param reg register number of buck/ldo to be set
* @param volt voltage level to be set
* @param enable enable or disable bit
* @param volt_units MAX77686_MV or MAX77686_UV, unit of the
* voltage parameters
*
* @return Return 0 if ok, else -1
*/
int max77686_volsetting(unsigned int bus, enum max77686_regnum reg,
unsigned int volt, int enable, int volt_units);
/**
* Disable charging of the RTC backup battery
*
* @param bus i2c bus
*
* @return Return 0 if ok, else -1
*/
int max77686_disable_backup_batt(unsigned int bus);
#endif /* __MAX77686_H_ */
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