// SPDX-License-Identifier: GPL-2.0+ // // Fuel gauge driver for Maxim 17042 / 8966 / 8997 // Note that Maxim 8966 and 8997 are mfd and this is its subdevice. // // Copyright (C) 2011 Samsung Electronics // MyungJoo Ham <[email protected]> // // This driver is based on max17040_battery.c #include <linux/acpi.h> #include <linux/devm-helpers.h> #include <linux/init.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/i2c.h> #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/pm.h> #include <linux/mod_devicetable.h> #include <linux/power_supply.h> #include <linux/power/max17042_battery.h> #include <linux/of.h> #include <linux/regmap.h> /* Status register bits */ #define STATUS_POR_BIT … #define STATUS_BST_BIT … #define STATUS_VMN_BIT … #define STATUS_TMN_BIT … #define STATUS_SMN_BIT … #define STATUS_BI_BIT … #define STATUS_VMX_BIT … #define STATUS_TMX_BIT … #define STATUS_SMX_BIT … #define STATUS_BR_BIT … /* Interrupt mask bits */ #define CFG_ALRT_BIT_ENBL … #define VFSOC0_LOCK … #define VFSOC0_UNLOCK … #define MODEL_UNLOCK1 … #define MODEL_UNLOCK2 … #define MODEL_LOCK1 … #define MODEL_LOCK2 … #define dQ_ACC_DIV … #define dP_ACC_100 … #define dP_ACC_200 … #define MAX17042_VMAX_TOLERANCE … struct max17042_chip { … }; static enum power_supply_property max17042_battery_props[] = …; static int max17042_get_temperature(struct max17042_chip *chip, int *temp) { … } static int max17042_get_status(struct max17042_chip *chip, int *status) { … } static int max17042_get_battery_health(struct max17042_chip *chip, int *health) { … } static int max17042_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { … } static int max17042_set_property(struct power_supply *psy, enum power_supply_property psp, const union power_supply_propval *val) { … } static int max17042_property_is_writeable(struct power_supply *psy, enum power_supply_property psp) { … } static int max17042_write_verify_reg(struct regmap *map, u8 reg, u32 value) { … } static inline void max17042_override_por(struct regmap *map, u8 reg, u16 value) { … } static inline void max17042_unlock_model(struct max17042_chip *chip) { … } static inline void max17042_lock_model(struct max17042_chip *chip) { … } static inline void max17042_write_model_data(struct max17042_chip *chip, u8 addr, int size) { … } static inline void max17042_read_model_data(struct max17042_chip *chip, u8 addr, u16 *data, int size) { … } static inline int max17042_model_data_compare(struct max17042_chip *chip, u16 *data1, u16 *data2, int size) { … } static int max17042_init_model(struct max17042_chip *chip) { … } static int max17042_verify_model_lock(struct max17042_chip *chip) { … } static void max17042_write_config_regs(struct max17042_chip *chip) { … } static void max17042_write_custom_regs(struct max17042_chip *chip) { … } static void max17042_update_capacity_regs(struct max17042_chip *chip) { … } static void max17042_reset_vfsoc0_reg(struct max17042_chip *chip) { … } static void max17042_load_new_capacity_params(struct max17042_chip *chip) { … } /* * Block write all the override values coming from platform data. * This function MUST be called before the POR initialization procedure * specified by maxim. */ static inline void max17042_override_por_values(struct max17042_chip *chip) { … } static int max17042_init_chip(struct max17042_chip *chip) { … } static void max17042_set_soc_threshold(struct max17042_chip *chip, u16 off) { … } static irqreturn_t max17042_thread_handler(int id, void *dev) { … } static void max17042_init_worker(struct work_struct *work) { … } #ifdef CONFIG_OF static struct max17042_platform_data * max17042_get_of_pdata(struct max17042_chip *chip) { … } #endif static struct max17042_reg_data max17047_default_pdata_init_regs[] = …; static struct max17042_platform_data * max17042_get_default_pdata(struct max17042_chip *chip) { … } static struct max17042_platform_data * max17042_get_pdata(struct max17042_chip *chip) { … } static const struct regmap_config max17042_regmap_config = …; static const struct power_supply_desc max17042_psy_desc = …; static const struct power_supply_desc max17042_no_current_sense_psy_desc = …; static int max17042_probe(struct i2c_client *client) { … } #ifdef CONFIG_PM_SLEEP static int max17042_suspend(struct device *dev) { … } static int max17042_resume(struct device *dev) { … } #endif static SIMPLE_DEV_PM_OPS(max17042_pm_ops, max17042_suspend, max17042_resume); #ifdef CONFIG_ACPI static const struct acpi_device_id max17042_acpi_match[] = …; MODULE_DEVICE_TABLE(acpi, max17042_acpi_match); #endif #ifdef CONFIG_OF static const struct of_device_id max17042_dt_match[] = …; MODULE_DEVICE_TABLE(of, max17042_dt_match); #endif static const struct i2c_device_id max17042_id[] = …; MODULE_DEVICE_TABLE(i2c, max17042_id); static struct i2c_driver max17042_i2c_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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