linux/drivers/rtc/rtc-max6916.c

// SPDX-License-Identifier: GPL-2.0-only
/* rtc-max6916.c
 *
 * Driver for MAXIM  max6916 Low Current, SPI Compatible
 * Real Time Clock
 *
 * Author : Venkat Prashanth B U <[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>

/* Registers in max6916 rtc */

#define MAX6916_SECONDS_REG …
#define MAX6916_MINUTES_REG …
#define MAX6916_HOURS_REG …
#define MAX6916_DATE_REG …
#define MAX6916_MONTH_REG …
#define MAX6916_DAY_REG …
#define MAX6916_YEAR_REG …
#define MAX6916_CONTROL_REG …
#define MAX6916_STATUS_REG …
#define MAX6916_CLOCK_BURST …

static int max6916_read_reg(struct device *dev, unsigned char address,
			    unsigned char *data)
{ … }

static int max6916_write_reg(struct device *dev, unsigned char address,
			     unsigned char data)
{ … }

static int max6916_read_time(struct device *dev, struct rtc_time *dt)
{ … }

static int max6916_set_time(struct device *dev, struct rtc_time *dt)
{ … }

static const struct rtc_class_ops max6916_rtc_ops = …;

static int max6916_probe(struct spi_device *spi)
{ … }

static struct spi_driver max6916_driver = …;
module_spi_driver(…) …;

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