linux/drivers/power/supply/axp20x_battery.c

/*
 * 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/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 AXP20X_PWR_OP_BATT_PRESENT …
#define AXP20X_PWR_OP_BATT_ACTIVATED …

#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 AXP813_CHRG_CTRL1_TGT_4_35V …

#define AXP20X_CHRG_CTRL1_TGT_CURR …

#define AXP20X_V_OFF_MASK …

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 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 axp20x_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 axp20x_set_constant_charge_current(struct axp20x_batt_ps *axp_batt,
					      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 axp20x_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 int axp20x_battery_prop_writeable(struct power_supply *psy,
					 enum power_supply_property psp)
{ … }

static const struct power_supply_desc axp20x_batt_ps_desc = …;

static const struct axp_data axp209_data = …;

static const struct axp_data axp221_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(…) …;