linux/drivers/watchdog/stpmic1_wdt.c

// SPDX-License-Identifier: GPL-2.0
// Copyright (C) STMicroelectronics 2018
// Author: Pascal Paillet <[email protected]> for STMicroelectronics.

#include <linux/kernel.h>
#include <linux/mfd/stpmic1.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/watchdog.h>

/* WATCHDOG CONTROL REGISTER bit */
#define WDT_START …
#define WDT_PING …
#define WDT_START_MASK …
#define WDT_PING_MASK …
#define WDT_STOP …

#define PMIC_WDT_MIN_TIMEOUT …
#define PMIC_WDT_MAX_TIMEOUT …
#define PMIC_WDT_DEFAULT_TIMEOUT …

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

struct stpmic1_wdt { … };

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

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

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

static int pmic_wdt_set_timeout(struct watchdog_device *wdd,
				unsigned int timeout)
{ … }

static const struct watchdog_info pmic_watchdog_info = …;

static const struct watchdog_ops pmic_watchdog_ops = …;

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

static const struct of_device_id of_pmic_wdt_match[] = …;

MODULE_DEVICE_TABLE(of, of_pmic_wdt_match);

static struct platform_driver stpmic1_wdt_driver = …;
module_platform_driver(…) …;

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