linux/drivers/rtc/rtc-bq32k.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Driver for TI BQ32000 RTC.
 *
 * Copyright (C) 2009 Semihalf.
 * Copyright (C) 2014 Pavel Machek <[email protected]>
 *
 * You can get hardware description at
 * https://www.ti.com/lit/ds/symlink/bq32000.pdf
 */

#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/rtc.h>
#include <linux/init.h>
#include <linux/kstrtox.h>
#include <linux/errno.h>
#include <linux/bcd.h>

#define BQ32K_SECONDS …
#define BQ32K_SECONDS_MASK …
#define BQ32K_STOP …

#define BQ32K_MINUTES …
#define BQ32K_MINUTES_MASK …
#define BQ32K_OF …

#define BQ32K_HOURS_MASK …
#define BQ32K_CENT …
#define BQ32K_CENT_EN …

#define BQ32K_CALIBRATION …
#define BQ32K_TCH2 …
#define BQ32K_CFG2 …
#define BQ32K_TCFE …

#define MAX_LEN …

struct bq32k_regs { … };

static struct i2c_driver bq32k_driver;

static int bq32k_read(struct device *dev, void *data, uint8_t off, uint8_t len)
{ … }

static int bq32k_write(struct device *dev, void *data, uint8_t off, uint8_t len)
{ … }

static int bq32k_rtc_read_time(struct device *dev, struct rtc_time *tm)
{ … }

static int bq32k_rtc_set_time(struct device *dev, struct rtc_time *tm)
{ … }

static const struct rtc_class_ops bq32k_rtc_ops = …;

static int trickle_charger_of_init(struct device *dev, struct device_node *node)
{ … }

static ssize_t bq32k_sysfs_show_tricklecharge_bypass(struct device *dev,
					       struct device_attribute *attr,
					       char *buf)
{ … }

static ssize_t bq32k_sysfs_store_tricklecharge_bypass(struct device *dev,
						struct device_attribute *attr,
						const char *buf, size_t count)
{ … }

static DEVICE_ATTR(trickle_charge_bypass, 0644,
		   bq32k_sysfs_show_tricklecharge_bypass,
		   bq32k_sysfs_store_tricklecharge_bypass);

static int bq32k_sysfs_register(struct device *dev)
{ … }

static void bq32k_sysfs_unregister(struct device *dev)
{ … }

static int bq32k_probe(struct i2c_client *client)
{ … }

static void bq32k_remove(struct i2c_client *client)
{ … }

static const struct i2c_device_id bq32k_id[] = …;
MODULE_DEVICE_TABLE(i2c, bq32k_id);

static const __maybe_unused struct of_device_id bq32k_of_match[] = …;
MODULE_DEVICE_TABLE(of, bq32k_of_match);

static struct i2c_driver bq32k_driver = …;

module_i2c_driver(…) …;

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