// SPDX-License-Identifier: GPL-2.0 // // Copyright (C) 2021 Samuel Holland <[email protected]> #include <linux/i2c.h> #include <linux/module.h> #include <linux/power_supply.h> #include <linux/regmap.h> #define IP5XXX_SYS_CTL0 … #define IP5XXX_SYS_CTL0_WLED_DET_EN … #define IP5XXX_SYS_CTL0_WLED_EN … #define IP5XXX_SYS_CTL0_BOOST_EN … #define IP5XXX_SYS_CTL0_CHARGER_EN … #define IP5XXX_SYS_CTL1 … #define IP5XXX_SYS_CTL1_LIGHT_SHDN_EN … #define IP5XXX_SYS_CTL1_LOAD_PWRUP_EN … #define IP5XXX_SYS_CTL2 … #define IP5XXX_SYS_CTL2_LIGHT_SHDN_TH … #define IP5XXX_SYS_CTL3 … #define IP5XXX_SYS_CTL3_LONG_PRESS_TIME_SEL … #define IP5XXX_SYS_CTL3_BTN_SHDN_EN … #define IP5XXX_SYS_CTL4 … #define IP5XXX_SYS_CTL4_SHDN_TIME_SEL … #define IP5XXX_SYS_CTL4_VIN_PULLOUT_BOOST_EN … #define IP5XXX_SYS_CTL5 … #define IP5XXX_SYS_CTL5_NTC_DIS … #define IP5XXX_SYS_CTL5_WLED_MODE_SEL … #define IP5XXX_SYS_CTL5_BTN_SHDN_SEL … #define IP5XXX_CHG_CTL1 … #define IP5XXX_CHG_CTL1_BOOST_UVP_SEL … #define IP5XXX_CHG_CTL2 … #define IP5XXX_CHG_CTL2_BAT_TYPE_SEL … #define IP5XXX_CHG_CTL2_BAT_TYPE_SEL_4_2V … #define IP5XXX_CHG_CTL2_BAT_TYPE_SEL_4_3V … #define IP5XXX_CHG_CTL2_BAT_TYPE_SEL_4_35V … #define IP5XXX_CHG_CTL2_CONST_VOLT_SEL … #define IP5XXX_CHG_CTL4 … #define IP5XXX_CHG_CTL4_BAT_TYPE_SEL_EN … #define IP5XXX_CHG_CTL4A … #define IP5XXX_CHG_CTL4A_CONST_CUR_SEL … #define IP5XXX_MFP_CTL0 … #define IP5XXX_MFP_CTL1 … #define IP5XXX_GPIO_CTL2 … #define IP5XXX_GPIO_CTL2A … #define IP5XXX_GPIO_CTL3 … #define IP5XXX_READ0 … #define IP5XXX_READ0_CHG_STAT … #define IP5XXX_READ0_CHG_STAT_IDLE … #define IP5XXX_READ0_CHG_STAT_TRICKLE … #define IP5XXX_READ0_CHG_STAT_CONST_VOLT … #define IP5XXX_READ0_CHG_STAT_CONST_CUR … #define IP5XXX_READ0_CHG_STAT_CONST_VOLT_STOP … #define IP5XXX_READ0_CHG_STAT_FULL … #define IP5XXX_READ0_CHG_STAT_TIMEOUT … #define IP5XXX_READ0_CHG_OP … #define IP5XXX_READ0_CHG_END … #define IP5XXX_READ0_CONST_VOLT_TIMEOUT … #define IP5XXX_READ0_CHG_TIMEOUT … #define IP5XXX_READ0_TRICKLE_TIMEOUT … #define IP5XXX_READ0_TIMEOUT … #define IP5XXX_READ1 … #define IP5XXX_READ1_WLED_PRESENT … #define IP5XXX_READ1_LIGHT_LOAD … #define IP5XXX_READ1_VIN_OVERVOLT … #define IP5XXX_READ2 … #define IP5XXX_READ2_BTN_PRESS … #define IP5XXX_READ2_BTN_LONG_PRESS … #define IP5XXX_READ2_BTN_SHORT_PRESS … #define IP5XXX_BATVADC_DAT0 … #define IP5XXX_BATVADC_DAT1 … #define IP5XXX_BATIADC_DAT0 … #define IP5XXX_BATIADC_DAT1 … #define IP5XXX_BATOCV_DAT0 … #define IP5XXX_BATOCV_DAT1 … struct ip5xxx { … }; /* * The IP5xxx charger only responds on I2C when it is "awake". The charger is * generally only awake when VIN is powered or when its boost converter is * enabled. Going into shutdown resets all register values. To handle this: * 1) When any bus error occurs, assume the charger has gone into shutdown. * 2) Attempt the initialization sequence on each subsequent register access * until it succeeds. */ static int ip5xxx_read(struct ip5xxx *ip5xxx, unsigned int reg, unsigned int *val) { … } static int ip5xxx_update_bits(struct ip5xxx *ip5xxx, unsigned int reg, unsigned int mask, unsigned int val) { … } static int ip5xxx_initialize(struct power_supply *psy) { … } static const enum power_supply_property ip5xxx_battery_properties[] = …; static int ip5xxx_battery_get_status(struct ip5xxx *ip5xxx, int *val) { … } static int ip5xxx_battery_get_charge_type(struct ip5xxx *ip5xxx, int *val) { … } static int ip5xxx_battery_get_health(struct ip5xxx *ip5xxx, int *val) { … } static int ip5xxx_battery_get_voltage_max(struct ip5xxx *ip5xxx, int *val) { … } static int ip5xxx_battery_read_adc(struct ip5xxx *ip5xxx, u8 lo_reg, u8 hi_reg, int *val) { … } static int ip5xxx_battery_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { … } static int ip5xxx_battery_set_voltage_max(struct ip5xxx *ip5xxx, int val) { … } static int ip5xxx_battery_set_property(struct power_supply *psy, enum power_supply_property psp, const union power_supply_propval *val) { … } static int ip5xxx_battery_property_is_writeable(struct power_supply *psy, enum power_supply_property psp) { … } static const struct power_supply_desc ip5xxx_battery_desc = …; static const enum power_supply_property ip5xxx_boost_properties[] = …; static int ip5xxx_boost_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { … } static int ip5xxx_boost_set_property(struct power_supply *psy, enum power_supply_property psp, const union power_supply_propval *val) { … } static int ip5xxx_boost_property_is_writeable(struct power_supply *psy, enum power_supply_property psp) { … } static const struct power_supply_desc ip5xxx_boost_desc = …; static const struct regmap_config ip5xxx_regmap_config = …; static int ip5xxx_power_probe(struct i2c_client *client) { … } static const struct of_device_id ip5xxx_power_of_match[] = …; MODULE_DEVICE_TABLE(of, ip5xxx_power_of_match); static struct i2c_driver ip5xxx_power_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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