linux/drivers/watchdog/meson_gxbb_wdt.c

// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
 * Copyright (c) 2016 BayLibre, SAS.
 * Author: Neil Armstrong <[email protected]>
 *
 */
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/watchdog.h>

#define DEFAULT_TIMEOUT …

#define GXBB_WDT_CTRL_REG …
#define GXBB_WDT_TCNT_REG …
#define GXBB_WDT_RSET_REG …

#define GXBB_WDT_CTRL_CLKDIV_EN …
#define GXBB_WDT_CTRL_CLK_EN …
#define GXBB_WDT_CTRL_EN …
#define GXBB_WDT_CTRL_DIV_MASK …

#define GXBB_WDT_TCNT_SETUP_MASK …
#define GXBB_WDT_TCNT_CNT_SHIFT …

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

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

struct meson_gxbb_wdt { … };

struct wdt_params { … };

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

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

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

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

static unsigned int meson_gxbb_wdt_get_timeleft(struct watchdog_device *wdt_dev)
{ … }

static const struct watchdog_ops meson_gxbb_wdt_ops = …;

static const struct watchdog_info meson_gxbb_wdt_info = …;

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

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

static const struct dev_pm_ops meson_gxbb_wdt_pm_ops = …;

static const struct wdt_params gxbb_params = …;

static const struct wdt_params t7_params = …;

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

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

static struct platform_driver meson_gxbb_wdt_driver = …;

module_platform_driver(…) …;

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