watchdog: core: dt: add support for the timeout-sec dt property

Add support for watchdog drivers to initialize/set the timeout field
of the watchdog_device structure. The timeout field is initialised
either with the module timeout parameter value (if valid) or with the
timeout-sec dt property (if valid). If both are invalid the initial
value is unchanged.

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c
index ef8edecfc526..08b48bbf9f4b 100644
--- a/drivers/watchdog/watchdog_dev.c
+++ b/drivers/watchdog/watchdog_dev.c
@@ -200,8 +200,7 @@ static int watchdog_set_timeout(struct watchdog_device *wddev,
             !(wddev->info->options & WDIOF_SETTIMEOUT))
                 return -EOPNOTSUPP;
 
-        if ((wddev->max_timeout != 0) &&
-            (timeout < wddev->min_timeout || timeout > wddev->max_timeout))
+        if (watchdog_timeout_invalid(wddev, timeout))
                 return -EINVAL;
 
         mutex_lock(&wddev->lock);