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/*
* max14577.h - Driver for the Maxim 14577/77836
*
* Copyright (C) 2014 Samsung Electrnoics
* Chanwoo Choi <cw00.choi@samsung.com>
* Krzysztof Kozlowski <krzk@kernel.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.
*
* 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.
*
* This driver is based on max8997.h
*
* MAX14577 has MUIC, Charger devices.
* The devices share the same I2C bus and interrupt line
* included in this mfd driver.
*
* MAX77836 has additional PMIC and Fuel-Gauge on different I2C slave
* addresses.
*/
#ifndef __MAX14577_H__
#define __MAX14577_H__
#include <linux/regulator/consumer.h>
/* MAX14577 regulator IDs */
enum max14577_regulators {
MAX14577_SAFEOUT = 0,
MAX14577_CHARGER,
MAX14577_REGULATOR_NUM,
};
/* MAX77836 regulator IDs */
enum max77836_regulators {
MAX77836_SAFEOUT = 0,
MAX77836_CHARGER,
MAX77836_LDO1,
MAX77836_LDO2,
MAX77836_REGULATOR_NUM,
};
struct max14577_regulator_platform_data {
int id;
struct regulator_init_data *initdata;
struct device_node *of_node;
};
struct max14577_charger_platform_data {
u32 constant_uvolt;
u32 fast_charge_uamp;
u32 eoc_uamp;
u32 ovp_uvolt;
};
/*
* MAX14577 MFD platform data
*/
struct max14577_platform_data {
/* IRQ */
int irq_base;
/* current control GPIOs */
int gpio_pogo_vbatt_en;
int gpio_pogo_vbus_en;
/* current control GPIO control function */
int (*set_gpio_pogo_vbatt_en) (int gpio_val);
int (*set_gpio_pogo_vbus_en) (int gpio_val);
int (*set_gpio_pogo_cb) (int new_dev);
struct max14577_regulator_platform_data *regulators;
};
/*
* Valid limits of current for max14577 and max77836 chargers.
* They must correspond to MBCICHWRCL and MBCICHWRCH fields in CHGCTRL4
* register for given chipset.
*/
struct maxim_charger_current {
/* Minimal current, set in CHGCTRL4/MBCICHWRCL, uA */
unsigned int min;
/*
* Minimal current when high setting is active,
* set in CHGCTRL4/MBCICHWRCH, uA
*/
unsigned int high_start;
/* Value of one step in high setting, uA */
unsigned int high_step;
/* Maximum current of high setting, uA */
unsigned int max;
};
extern const struct maxim_charger_current maxim_charger_currents[];
extern int maxim_charger_calc_reg_current(const struct maxim_charger_current *limits,
unsigned int min_ua, unsigned int max_ua, u8 *dst);
#endif /* __MAX14577_H__ */
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