watchdog: sunxi_wdt: use core restart handler
Get rid of the custom restart handler by using the one provided by the
watchdog core.
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/sunxi_wdt.c b/drivers/watchdog/sunxi_wdt.c
index 47bd8a1..e027deb 100644
--- a/drivers/watchdog/sunxi_wdt.c
+++ b/drivers/watchdog/sunxi_wdt.c
@@ -21,11 +21,9 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
-#include <linux/notifier.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
-#include <linux/reboot.h>
#include <linux/types.h>
#include <linux/watchdog.h>
@@ -60,7 +58,6 @@
struct watchdog_device wdt_dev;
void __iomem *wdt_base;
const struct sunxi_wdt_reg *wdt_regs;
- struct notifier_block restart_handler;
};
/*
@@ -86,12 +83,9 @@
};
-static int sunxi_restart_handle(struct notifier_block *this, unsigned long mode,
- void *cmd)
+static int sunxi_wdt_restart(struct watchdog_device *wdt_dev)
{
- struct sunxi_wdt_dev *sunxi_wdt = container_of(this,
- struct sunxi_wdt_dev,
- restart_handler);
+ struct sunxi_wdt_dev *sunxi_wdt = watchdog_get_drvdata(wdt_dev);
void __iomem *wdt_base = sunxi_wdt->wdt_base;
const struct sunxi_wdt_reg *regs = sunxi_wdt->wdt_regs;
u32 val;
@@ -120,7 +114,7 @@
val |= WDT_MODE_EN;
writel(val, wdt_base + regs->wdt_mode);
}
- return NOTIFY_DONE;
+ return 0;
}
static int sunxi_wdt_ping(struct watchdog_device *wdt_dev)
@@ -208,6 +202,7 @@
.stop = sunxi_wdt_stop,
.ping = sunxi_wdt_ping,
.set_timeout = sunxi_wdt_set_timeout,
+ .restart = sunxi_wdt_restart,
};
static const struct sunxi_wdt_reg sun4i_wdt_reg = {
@@ -268,6 +263,7 @@
watchdog_init_timeout(&sunxi_wdt->wdt_dev, timeout, &pdev->dev);
watchdog_set_nowayout(&sunxi_wdt->wdt_dev, nowayout);
+ watchdog_set_restart_priority(&sunxi_wdt->wdt_dev, 128);
watchdog_set_drvdata(&sunxi_wdt->wdt_dev, sunxi_wdt);
@@ -277,13 +273,6 @@
if (unlikely(err))
return err;
- sunxi_wdt->restart_handler.notifier_call = sunxi_restart_handle;
- sunxi_wdt->restart_handler.priority = 128;
- err = register_restart_handler(&sunxi_wdt->restart_handler);
- if (err)
- dev_err(&pdev->dev,
- "cannot register restart handler (err=%d)\n", err);
-
dev_info(&pdev->dev, "Watchdog enabled (timeout=%d sec, nowayout=%d)",
sunxi_wdt->wdt_dev.timeout, nowayout);
@@ -294,8 +283,6 @@
{
struct sunxi_wdt_dev *sunxi_wdt = platform_get_drvdata(pdev);
- unregister_restart_handler(&sunxi_wdt->restart_handler);
-
watchdog_unregister_device(&sunxi_wdt->wdt_dev);
watchdog_set_drvdata(&sunxi_wdt->wdt_dev, NULL);