watchdog: add timeout-sec property binding

this patchset add the timeout-sec property to the following drivers:
orion_wdt, pnx4008_wdt, s3c2410_wdt and at91sam9_wdt.

The at91sam9_wdt is tested on evk-pr3,
the other drivers are compile tested only.

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Cc: Masanari Iida <standby24x7@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index de1f3fa1d787..a3684a30eb69 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -142,6 +142,7 @@ static const struct watchdog_ops pnx4008_wdt_ops = {
 static struct watchdog_device pnx4008_wdd = {
         .info = &pnx4008_wdt_ident,
         .ops = &pnx4008_wdt_ops,
+        .timeout = DEFAULT_HEARTBEAT,
         .min_timeout = 1,
         .max_timeout = MAX_HEARTBEAT,
 };
@@ -151,8 +152,7 @@ static int pnx4008_wdt_probe(struct platform_device *pdev)
         struct resource *r;
         int ret = 0;
 
-        if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
-                heartbeat = DEFAULT_HEARTBEAT;
+        watchdog_init_timeout(&pnx4008_wdd, heartbeat, &pdev->dev);
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         wdt_base = devm_ioremap_resource(&pdev->dev, r);
@@ -167,7 +167,6 @@ static int pnx4008_wdt_probe(struct platform_device *pdev)
         if (ret)
                 goto out;
 
-        pnx4008_wdd.timeout = heartbeat;
         pnx4008_wdd.bootstatus = (readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ?
                         WDIOF_CARDRESET : 0;
         watchdog_set_nowayout(&pnx4008_wdd, nowayout);
@@ -181,7 +180,7 @@ static int pnx4008_wdt_probe(struct platform_device *pdev)
         }
 
         dev_info(&pdev->dev, "PNX4008 Watchdog Timer: heartbeat %d sec\n",
-                        heartbeat);
+                 pnx4008_wdd.timeout);
 
         return 0;