linux/drivers/watchdog/jz4740_wdt.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Copyright (C) 2010, Paul Cercueil <[email protected]>
 *  JZ4740 Watchdog driver
 */

#include <linux/mfd/ingenic-tcu.h>
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/watchdog.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/device.h>
#include <linux/clk.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/regmap.h>

#define DEFAULT_HEARTBEAT …
#define MAX_HEARTBEAT …

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

static unsigned int heartbeat = …;
module_param(heartbeat, uint, 0);
MODULE_PARM_DESC(…) …;

struct jz4740_wdt_drvdata { … };

static int jz4740_wdt_ping(struct watchdog_device *wdt_dev)
{ … }

static int jz4740_wdt_set_timeout(struct watchdog_device *wdt_dev,
				    unsigned int new_timeout)
{ … }

static int jz4740_wdt_start(struct watchdog_device *wdt_dev)
{ … }

static int jz4740_wdt_stop(struct watchdog_device *wdt_dev)
{ … }

static int jz4740_wdt_restart(struct watchdog_device *wdt_dev,
			      unsigned long action, void *data)
{ … }

static const struct watchdog_info jz4740_wdt_info = …;

static const struct watchdog_ops jz4740_wdt_ops = …;

#ifdef CONFIG_OF
static const struct of_device_id jz4740_wdt_of_matches[] = …;
MODULE_DEVICE_TABLE(of, jz4740_wdt_of_matches);
#endif

static int jz4740_wdt_probe(struct platform_device *pdev)
{ … }

static struct platform_driver jz4740_wdt_driver = …;

module_platform_driver(…) …;

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