/* * Battery power supply driver for X-Powers AXP20X and AXP22X PMICs * * Copyright 2016 Free Electrons NextThing Co. * Quentin Schulz <[email protected]> * * This driver is based on a previous upstreaming attempt by: * Bruno Prémont <[email protected]> * * This file is subject to the terms and conditions of the GNU General * Public License. See the file "COPYING" in the main directory of this * archive for more details. * * 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. */ #include <linux/bitfield.h> #include <linux/err.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/power_supply.h> #include <linux/regmap.h> #include <linux/slab.h> #include <linux/time.h> #include <linux/iio/iio.h> #include <linux/iio/consumer.h> #include <linux/mfd/axp20x.h> #define AXP20X_PWR_STATUS_BAT_CHARGING … #define AXP717_PWR_STATUS_MASK … #define AXP717_PWR_STATUS_BAT_STANDBY … #define AXP717_PWR_STATUS_BAT_CHRG … #define AXP717_PWR_STATUS_BAT_DISCHRG … #define AXP20X_PWR_OP_BATT_PRESENT … #define AXP20X_PWR_OP_BATT_ACTIVATED … #define AXP717_PWR_OP_BATT_PRESENT … #define AXP717_BATT_PMU_FAULT_MASK … #define AXP717_BATT_UVLO_2_5V … #define AXP717_BATT_OVER_TEMP … #define AXP717_BATT_UNDER_TEMP … #define AXP209_FG_PERCENT … #define AXP22X_FG_VALID … #define AXP20X_CHRG_CTRL1_ENABLE … #define AXP20X_CHRG_CTRL1_TGT_VOLT … #define AXP20X_CHRG_CTRL1_TGT_4_1V … #define AXP20X_CHRG_CTRL1_TGT_4_15V … #define AXP20X_CHRG_CTRL1_TGT_4_2V … #define AXP20X_CHRG_CTRL1_TGT_4_36V … #define AXP22X_CHRG_CTRL1_TGT_4_22V … #define AXP22X_CHRG_CTRL1_TGT_4_24V … #define AXP717_CHRG_ENABLE … #define AXP717_CHRG_CV_VOLT_MASK … #define AXP717_CHRG_CV_4_0V … #define AXP717_CHRG_CV_4_1V … #define AXP717_CHRG_CV_4_2V … #define AXP717_CHRG_CV_4_35V … #define AXP717_CHRG_CV_4_4V … /* Values 5 and 6 reserved. */ #define AXP717_CHRG_CV_5_0V … #define AXP813_CHRG_CTRL1_TGT_4_35V … #define AXP20X_CHRG_CTRL1_TGT_CURR … #define AXP717_ICC_CHARGER_LIM_MASK … #define AXP717_ITERM_CHG_LIM_MASK … #define AXP717_ITERM_CC_STEP … #define AXP20X_V_OFF_MASK … #define AXP717_V_OFF_MASK … #define AXP717_BAT_VMIN_MIN_UV … #define AXP717_BAT_VMIN_MAX_UV … #define AXP717_BAT_VMIN_STEP … #define AXP717_BAT_CV_MIN_UV … #define AXP717_BAT_CV_MAX_UV … #define AXP717_BAT_CC_MIN_UA … #define AXP717_BAT_CC_MAX_UA … struct axp20x_batt_ps; struct axp_data { … }; struct axp20x_batt_ps { … }; static int axp20x_battery_get_max_voltage(struct axp20x_batt_ps *axp20x_batt, int *val) { … } static int axp22x_battery_get_max_voltage(struct axp20x_batt_ps *axp20x_batt, int *val) { … } static int axp717_battery_get_max_voltage(struct axp20x_batt_ps *axp20x_batt, int *val) { … } static int axp813_battery_get_max_voltage(struct axp20x_batt_ps *axp20x_batt, int *val) { … } static int axp20x_get_constant_charge_current(struct axp20x_batt_ps *axp, int *val) { … } static int axp717_get_constant_charge_current(struct axp20x_batt_ps *axp, int *val) { … } static int axp20x_battery_get_prop(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { … } static int axp717_battery_get_prop(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { … } static int axp22x_battery_set_max_voltage(struct axp20x_batt_ps *axp20x_batt, int val) { … } static int axp20x_battery_set_max_voltage(struct axp20x_batt_ps *axp20x_batt, int val) { … } static int axp717_battery_set_max_voltage(struct axp20x_batt_ps *axp20x_batt, int val) { … } static int axp20x_set_constant_charge_current(struct axp20x_batt_ps *axp_batt, int charge_current) { … } static int axp717_set_constant_charge_current(struct axp20x_batt_ps *axp, int charge_current) { … } static int axp20x_set_max_constant_charge_current(struct axp20x_batt_ps *axp, int charge_current) { … } static int axp20x_set_voltage_min_design(struct axp20x_batt_ps *axp_batt, int min_voltage) { … } static int axp717_set_voltage_min_design(struct axp20x_batt_ps *axp_batt, int min_voltage) { … } static int axp20x_battery_set_prop(struct power_supply *psy, enum power_supply_property psp, const union power_supply_propval *val) { … } static int axp717_battery_set_prop(struct power_supply *psy, enum power_supply_property psp, const union power_supply_propval *val) { … } static enum power_supply_property axp20x_battery_props[] = …; static enum power_supply_property axp717_battery_props[] = …; static int axp20x_battery_prop_writeable(struct power_supply *psy, enum power_supply_property psp) { … } static int axp717_battery_prop_writeable(struct power_supply *psy, enum power_supply_property psp) { … } static const struct power_supply_desc axp209_batt_ps_desc = …; static const struct power_supply_desc axp717_batt_ps_desc = …; static int axp209_bat_cfg_iio_channels(struct platform_device *pdev, struct axp20x_batt_ps *axp_batt) { … } static int axp717_bat_cfg_iio_channels(struct platform_device *pdev, struct axp20x_batt_ps *axp_batt) { … } static void axp209_set_battery_info(struct platform_device *pdev, struct axp20x_batt_ps *axp_batt, struct power_supply_battery_info *info) { … } static void axp717_set_battery_info(struct platform_device *pdev, struct axp20x_batt_ps *axp_batt, struct power_supply_battery_info *info) { … } static const struct axp_data axp209_data = …; static const struct axp_data axp221_data = …; static const struct axp_data axp717_data = …; static const struct axp_data axp813_data = …; static const struct of_device_id axp20x_battery_ps_id[] = …; MODULE_DEVICE_TABLE(of, axp20x_battery_ps_id); static int axp20x_power_probe(struct platform_device *pdev) { … } static struct platform_driver axp20x_batt_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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