linux/drivers/watchdog/wm831x_wdt.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Watchdog driver for the wm831x PMICs
 *
 * Copyright (C) 2009 Wolfson Microelectronics
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/watchdog.h>
#include <linux/uaccess.h>

#include <linux/mfd/wm831x/core.h>
#include <linux/mfd/wm831x/pdata.h>
#include <linux/mfd/wm831x/watchdog.h>

static bool nowayout = … WATCHDOG_NOWAYOUT;
module_param(nowayout, bool, 0);
MODULE_PARM_DESC(…) …;

struct wm831x_wdt_drvdata { … };

/* We can't use the sub-second values here but they're included
 * for completeness.  */
static struct { … } wm831x_wdt_cfgs[] = …;

static int wm831x_wdt_start(struct watchdog_device *wdt_dev)
{ … }

static int wm831x_wdt_stop(struct watchdog_device *wdt_dev)
{ … }

static int wm831x_wdt_ping(struct watchdog_device *wdt_dev)
{ … }

static int wm831x_wdt_set_timeout(struct watchdog_device *wdt_dev,
				  unsigned int timeout)
{ … }

static const struct watchdog_info wm831x_wdt_info = …;

static const struct watchdog_ops wm831x_wdt_ops = …;

static int wm831x_wdt_probe(struct platform_device *pdev)
{ … }

static struct platform_driver wm831x_wdt_driver = …;

module_platform_driver(…) …;

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