linux/drivers/rtc/rtc-ds1347.c

// SPDX-License-Identifier: GPL-2.0-only
/* rtc-ds1347.c
 *
 * Driver for Dallas Semiconductor DS1347 Low Current, SPI Compatible
 * Real Time Clock
 *
 * Author : Raghavendra Chandra Ganiga <[email protected]>
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/rtc.h>
#include <linux/spi/spi.h>
#include <linux/bcd.h>
#include <linux/regmap.h>

/* Registers in ds1347 rtc */

#define DS1347_SECONDS_REG …
#define DS1347_MINUTES_REG …
#define DS1347_HOURS_REG …
#define DS1347_DATE_REG …
#define DS1347_MONTH_REG …
#define DS1347_DAY_REG …
#define DS1347_YEAR_REG …
#define DS1347_CONTROL_REG …
#define DS1347_CENTURY_REG …
#define DS1347_STATUS_REG …
#define DS1347_CLOCK_BURST …

#define DS1347_WP_BIT …

#define DS1347_NEOSC_BIT …
#define DS1347_OSF_BIT …

static const struct regmap_range ds1347_ranges[] = …;

static const struct regmap_access_table ds1347_access_table = …;

static int ds1347_read_time(struct device *dev, struct rtc_time *dt)
{ … }

static int ds1347_set_time(struct device *dev, struct rtc_time *dt)
{ … }

static const struct rtc_class_ops ds1347_rtc_ops = …;

static int ds1347_probe(struct spi_device *spi)
{ … }

static struct spi_driver ds1347_driver = …;

module_spi_driver(…) …;

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