linux/drivers/power/supply/max14656_charger_detector.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Maxim MAX14656 / AL32 USB Charger Detector driver
 *
 * Copyright (C) 2014 LG Electronics, Inc
 * Copyright (C) 2016 Alexander Kurz <[email protected]>
 *
 * Components from Maxim AL32 Charger detection Driver for MX50 Yoshi Board
 * Copyright (C) Amazon Technologies Inc. All rights reserved.
 * Manish Lachwani ([email protected])
 */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/mod_devicetable.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/power_supply.h>
#include <linux/devm-helpers.h>

#define MAX14656_MANUFACTURER …
#define MAX14656_NAME …

#define MAX14656_DEVICE_ID …
#define MAX14656_INTERRUPT_1 …
#define MAX14656_INTERRUPT_2 …
#define MAX14656_STATUS_1 …
#define MAX14656_STATUS_2 …
#define MAX14656_INTMASK_1 …
#define MAX14656_INTMASK_2 …
#define MAX14656_CONTROL_1 …
#define MAX14656_CONTROL_2 …
#define MAX14656_CONTROL_3 …

#define DEVICE_VENDOR_MASK …
#define DEVICE_REV_MASK …
#define INT_EN_REG_MASK …
#define CHG_TYPE_INT_MASK …
#define STATUS1_VB_VALID_MASK …
#define STATUS1_CHG_TYPE_MASK …
#define INT1_DCD_TIMEOUT_MASK …
#define CONTROL1_DEFAULT …
#define CONTROL1_INT_EN …
#define CONTROL1_INT_ACTIVE_HIGH …
#define CONTROL1_EDGE …
#define CONTROL2_DEFAULT …
#define CONTROL2_ADC_EN …
#define CONTROL3_DEFAULT …

enum max14656_chg_type { … };

static const struct max14656_chg_type_props { … } chg_type_props[] = …;

struct max14656_chip { … };

static int max14656_read_reg(struct i2c_client *client, int reg, u8 *val)
{ … }

static int max14656_write_reg(struct i2c_client *client, int reg, u8 val)
{ … }

static int max14656_read_block_reg(struct i2c_client *client, u8 reg,
				  u8 length, u8 *val)
{ … }

#define REG_TOTAL_NUM …
static void max14656_irq_worker(struct work_struct *work)
{ … }

static irqreturn_t max14656_irq(int irq, void *dev_id)
{ … }

static int max14656_hw_init(struct max14656_chip *chip)
{ … }

static int max14656_get_property(struct power_supply *psy,
			    enum power_supply_property psp,
			    union power_supply_propval *val)
{ … }

static enum power_supply_property max14656_battery_props[] = …;

static int max14656_probe(struct i2c_client *client)
{ … }

static const struct i2c_device_id max14656_id[] = …;
MODULE_DEVICE_TABLE(i2c, max14656_id);

static const struct of_device_id max14656_match_table[] = …;
MODULE_DEVICE_TABLE(of, max14656_match_table);

static struct i2c_driver max14656_i2c_driver = …;
module_i2c_driver(…) …;

MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;