linux/drivers/watchdog/tqmx86_wdt.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Watchdog driver for TQMx86 PLD.
 *
 * The watchdog supports power of 2 timeouts from 1 to 4096sec.
 * Once started, it cannot be stopped.
 *
 * Based on the vendor code written by Vadim V.Vlasov
 * <[email protected]>
 */

#include <linux/io.h>
#include <linux/log2.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/timer.h>
#include <linux/watchdog.h>

/* default timeout (secs) */
#define WDT_TIMEOUT …

static unsigned int timeout;
module_param(timeout, uint, 0);
MODULE_PARM_DESC(…) …;
struct tqmx86_wdt { … };

#define TQMX86_WDCFG …
#define TQMX86_WDCS …

static int tqmx86_wdt_start(struct watchdog_device *wdd)
{ … }

static int tqmx86_wdt_set_timeout(struct watchdog_device *wdd, unsigned int t)
{ … }

static const struct watchdog_info tqmx86_wdt_info = …;

static const struct watchdog_ops tqmx86_wdt_ops = …;

static int tqmx86_wdt_probe(struct platform_device *pdev)
{ … }

static struct platform_driver tqmx86_wdt_driver = …;

module_platform_driver(…) …;

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