108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
/*
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* max14577.h - Driver for the Maxim 14577/77836
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*
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* Copyright (C) 2014 Samsung Electrnoics
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* Chanwoo Choi <cw00.choi@samsung.com>
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* Krzysztof Kozlowski <krzk@kernel.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* This driver is based on max8997.h
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*
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* MAX14577 has MUIC, Charger devices.
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* The devices share the same I2C bus and interrupt line
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* included in this mfd driver.
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*
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* MAX77836 has additional PMIC and Fuel-Gauge on different I2C slave
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* addresses.
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*/
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#ifndef __MAX14577_H__
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#define __MAX14577_H__
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#include <linux/regulator/consumer.h>
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/* MAX14577 regulator IDs */
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enum max14577_regulators {
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MAX14577_SAFEOUT = 0,
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MAX14577_CHARGER,
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MAX14577_REGULATOR_NUM,
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};
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/* MAX77836 regulator IDs */
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enum max77836_regulators {
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MAX77836_SAFEOUT = 0,
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MAX77836_CHARGER,
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MAX77836_LDO1,
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MAX77836_LDO2,
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MAX77836_REGULATOR_NUM,
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};
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struct max14577_regulator_platform_data {
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int id;
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struct regulator_init_data *initdata;
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struct device_node *of_node;
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};
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struct max14577_charger_platform_data {
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u32 constant_uvolt;
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u32 fast_charge_uamp;
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u32 eoc_uamp;
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u32 ovp_uvolt;
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};
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/*
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* MAX14577 MFD platform data
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*/
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struct max14577_platform_data {
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/* IRQ */
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int irq_base;
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/* current control GPIOs */
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int gpio_pogo_vbatt_en;
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int gpio_pogo_vbus_en;
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/* current control GPIO control function */
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int (*set_gpio_pogo_vbatt_en) (int gpio_val);
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int (*set_gpio_pogo_vbus_en) (int gpio_val);
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int (*set_gpio_pogo_cb) (int new_dev);
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struct max14577_regulator_platform_data *regulators;
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};
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/*
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* Valid limits of current for max14577 and max77836 chargers.
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* They must correspond to MBCICHWRCL and MBCICHWRCH fields in CHGCTRL4
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* register for given chipset.
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*/
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struct maxim_charger_current {
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/* Minimal current, set in CHGCTRL4/MBCICHWRCL, uA */
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unsigned int min;
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/*
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* Minimal current when high setting is active,
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* set in CHGCTRL4/MBCICHWRCH, uA
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*/
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unsigned int high_start;
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/* Value of one step in high setting, uA */
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unsigned int high_step;
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/* Maximum current of high setting, uA */
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unsigned int max;
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};
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extern const struct maxim_charger_current maxim_charger_currents[];
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extern int maxim_charger_calc_reg_current(const struct maxim_charger_current *limits,
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unsigned int min_ua, unsigned int max_ua, u8 *dst);
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#endif /* __MAX14577_H__ */
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