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path: root/drivers/watchdog/renesas_wdt.c
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Diffstat (limited to 'drivers/watchdog/renesas_wdt.c')
-rw-r--r--drivers/watchdog/renesas_wdt.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/watchdog/renesas_wdt.c b/drivers/watchdog/renesas_wdt.c
index 0dede5beb3f1..6b8c6ddfe30b 100644
--- a/drivers/watchdog/renesas_wdt.c
+++ b/drivers/watchdog/renesas_wdt.c
@@ -110,6 +110,16 @@ static unsigned int rwdt_get_timeleft(struct watchdog_device *wdev)
return DIV_BY_CLKS_PER_SEC(priv, 65536 - val);
}
+static int rwdt_restart(struct watchdog_device *wdev, unsigned long action,
+ void *data)
+{
+ struct rwdt_priv *priv = watchdog_get_drvdata(wdev);
+
+ rwdt_start(wdev);
+ rwdt_write(priv, 0xffff, RWTCNT);
+ return 0;
+}
+
static const struct watchdog_info rwdt_ident = {
.options = WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT,
.identity = "Renesas WDT Watchdog",
@@ -121,6 +131,7 @@ static const struct watchdog_ops rwdt_ops = {
.stop = rwdt_stop,
.ping = rwdt_init_timeout,
.get_timeleft = rwdt_get_timeleft,
+ .restart = rwdt_restart,
};
#if defined(CONFIG_ARCH_RCAR_GEN2) && defined(CONFIG_SMP)
@@ -220,6 +231,7 @@ static int rwdt_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, priv);
watchdog_set_drvdata(&priv->wdev, priv);
watchdog_set_nowayout(&priv->wdev, nowayout);
+ watchdog_set_restart_priority(&priv->wdev, 0);
/* This overrides the default timeout only if DT configuration was found */
ret = watchdog_init_timeout(&priv->wdev, 0, &pdev->dev);