/* * Battery charger driver for TI BQ24735 * * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved. * * 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; * * 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. */ #include <linux/devm-helpers.h> #include <linux/err.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/gpio/consumer.h> #include <linux/power_supply.h> #include <linux/slab.h> #include <linux/power/bq24735-charger.h> /* BQ24735 available commands and their respective masks */ #define BQ24735_CHARGE_OPT … #define BQ24735_CHARGE_CURRENT … #define BQ24735_CHARGE_CURRENT_MASK … #define BQ24735_CHARGE_VOLTAGE … #define BQ24735_CHARGE_VOLTAGE_MASK … #define BQ24735_INPUT_CURRENT … #define BQ24735_INPUT_CURRENT_MASK … #define BQ24735_MANUFACTURER_ID … #define BQ24735_DEVICE_ID … /* ChargeOptions bits of interest */ #define BQ24735_CHARGE_OPT_CHG_DISABLE … #define BQ24735_CHARGE_OPT_AC_PRESENT … struct bq24735 { … }; static inline struct bq24735 *to_bq24735(struct power_supply *psy) { … } static enum power_supply_property bq24735_charger_properties[] = …; static int bq24735_charger_property_is_writeable(struct power_supply *psy, enum power_supply_property psp) { … } static inline int bq24735_write_word(struct i2c_client *client, u8 reg, u16 value) { … } static inline int bq24735_read_word(struct i2c_client *client, u8 reg) { … } static int bq24735_update_word(struct i2c_client *client, u8 reg, u16 mask, u16 value) { … } static int bq24735_config_charger(struct bq24735 *charger) { … } static inline int bq24735_enable_charging(struct bq24735 *charger) { … } static inline int bq24735_disable_charging(struct bq24735 *charger) { … } static bool bq24735_charger_is_present(struct bq24735 *charger) { … } static int bq24735_charger_is_charging(struct bq24735 *charger) { … } static void bq24735_update(struct bq24735 *charger) { … } static irqreturn_t bq24735_charger_isr(int irq, void *devid) { … } static void bq24735_poll(struct work_struct *work) { … } static int bq24735_charger_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { … } static int bq24735_charger_set_property(struct power_supply *psy, enum power_supply_property psp, const union power_supply_propval *val) { … } static struct bq24735_platform *bq24735_parse_dt_data(struct i2c_client *client) { … } static int bq24735_charger_probe(struct i2c_client *client) { … } static const struct i2c_device_id bq24735_charger_id[] = …; MODULE_DEVICE_TABLE(i2c, bq24735_charger_id); static const struct of_device_id bq24735_match_ids[] = …; MODULE_DEVICE_TABLE(of, bq24735_match_ids); static struct i2c_driver bq24735_charger_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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