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authorMans Rullgard <mans@mansr.com>2019-05-28 10:09:47 +0100
committerWim Van Sebroeck <wim@linux-watchdog.org>2019-07-08 19:39:44 +0200
commit1a4aaf9f11f9937e93fe9907e6c2320a10a9f269 (patch)
treee453ddc4e2019da663f2509a8e1f31679cba859d /drivers/watchdog
parentb7fbd3e55c0f842551445d6dbe3dd92ab155b2e8 (diff)
downloadlinux-1a4aaf9f11f9937e93fe9907e6c2320a10a9f269.tar.bz2
watchdog: gpio: add support for nowayout option
Add support for the nowayout option in the gpio watchdog driver. Signed-off-by: Mans Rullgard <mans@mansr.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/gpio_wdt.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/watchdog/gpio_wdt.c b/drivers/watchdog/gpio_wdt.c
index 777de10f2a78..0923201ce874 100644
--- a/drivers/watchdog/gpio_wdt.c
+++ b/drivers/watchdog/gpio_wdt.c
@@ -13,6 +13,12 @@
#include <linux/platform_device.h>
#include <linux/watchdog.h>
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
+MODULE_PARM_DESC(nowayout,
+ "Watchdog cannot be stopped once started (default="
+ __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
#define SOFT_TIMEOUT_MIN 1
#define SOFT_TIMEOUT_DEF 60
@@ -151,6 +157,7 @@ static int gpio_wdt_probe(struct platform_device *pdev)
priv->wdd.timeout = SOFT_TIMEOUT_DEF;
watchdog_init_timeout(&priv->wdd, 0, dev);
+ watchdog_set_nowayout(&priv->wdd, nowayout);
watchdog_stop_on_reboot(&priv->wdd);