linux/drivers/watchdog/msc313e_wdt.c

// SPDX-License-Identifier: GPL-2.0
/*
 * MStar WDT driver
 *
 * Copyright (C) 2019 - 2021 Daniel Palmer
 * Copyright (C) 2021 Romain Perier
 *
 */

#include <linux/clk.h>
#include <linux/io.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/watchdog.h>

#define REG_WDT_CLR …
#define REG_WDT_MAX_PRD_L …
#define REG_WDT_MAX_PRD_H …

#define MSC313E_WDT_MIN_TIMEOUT …
#define MSC313E_WDT_DEFAULT_TIMEOUT …

static unsigned int timeout;

module_param(timeout, int, 0);
MODULE_PARM_DESC(…) …;

struct msc313e_wdt_priv { … };

static int msc313e_wdt_start(struct watchdog_device *wdev)
{ … }

static int msc313e_wdt_ping(struct watchdog_device *wdev)
{ … }

static int msc313e_wdt_stop(struct watchdog_device *wdev)
{ … }

static int msc313e_wdt_settimeout(struct watchdog_device *wdev, unsigned int new_time)
{ … }

static const struct watchdog_info msc313e_wdt_ident = …;

static const struct watchdog_ops msc313e_wdt_ops = …;

static const struct of_device_id msc313e_wdt_of_match[] = …;
MODULE_DEVICE_TABLE(of, msc313e_wdt_of_match);

static int msc313e_wdt_probe(struct platform_device *pdev)
{ … }

static int __maybe_unused msc313e_wdt_suspend(struct device *dev)
{ … }

static int __maybe_unused msc313e_wdt_resume(struct device *dev)
{ … }

static SIMPLE_DEV_PM_OPS(msc313e_wdt_pm_ops, msc313e_wdt_suspend, msc313e_wdt_resume);

static struct platform_driver msc313e_wdt_driver = …;
module_platform_driver(…) …;

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