watchdog: omap_wdt: implement get_timeleft

[linux-2.6-microblaze.git] / drivers / watchdog / omap_wdt.c

diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 1a74bc7..ebea6e6 100644 (file)
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -198,6 +198,16 @@ static int omap_wdt_set_timeout(struct watchdog_device *wdog,
        return 0;
 }
 
+static unsigned int omap_wdt_get_timeleft(struct watchdog_device *wdog)
+{
+       struct omap_wdt_dev *wdev = watchdog_get_drvdata(wdog);
+       void __iomem *base = wdev->base;
+       u32 value;
+
+       value = readl_relaxed(base + OMAP_WATCHDOG_CRR);
+       return GET_WCCR_SECS(value);
+}
+
 static const struct watchdog_info omap_wdt_info = {
        .options = WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING,
        .identity = "OMAP Watchdog",
@@ -209,6 +219,7 @@ static const struct watchdog_ops omap_wdt_ops = {
        .stop           = omap_wdt_stop,
        .ping           = omap_wdt_ping,
        .set_timeout    = omap_wdt_set_timeout,
+       .get_timeleft   = omap_wdt_get_timeleft,
 };
 
 static int omap_wdt_probe(struct platform_device *pdev)