On 5/28/19 2:09 AM, Mans Rullgard wrote:
Add support for the nowayout option in the gpio watchdog driver.
Signed-off-by: Mans Rullgard <mans@xxxxxxxxx>
Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
drivers/watchdog/gpio_wdt.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/watchdog/gpio_wdt.c b/drivers/watchdog/gpio_wdt.c
index ea77cae03c9d..63792bb70213 100644
--- a/drivers/watchdog/gpio_wdt.c
+++ b/drivers/watchdog/gpio_wdt.c
@@ -17,6 +17,12 @@
#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
@@ -155,6 +161,7 @@ static int gpio_wdt_probe(struct platform_device *pdev)
priv->wdd.timeout = SOFT_TIMEOUT_DEF;
watchdog_init_timeout(&priv->wdd, 0, &pdev->dev);
+ watchdog_set_nowayout(&priv->wdd, nowayout);
watchdog_stop_on_reboot(&priv->wdd);
