watchdog: sp805_wdt: add expire_now method

Add sp805_wdt_expire_now function.
expire_now method is required by U_BOOT_DRIVER.

Signed-off-by: Thomas Schaefer <thomas.schaefer@kontron.com>
Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>

diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c
index 9661282..f1e781e 100644 (file)
--- a/drivers/watchdog/sp805_wdt.c
+++ b/drivers/watchdog/sp805_wdt.c
@@ -87,9 +87,16 @@ static int sp805_wdt_stop(struct udevice *dev)
        return 0;
 }
 
+static int sp805_wdt_expire_now(struct udevice *dev, ulong flags)
+{
+       sp805_wdt_start(dev, 0, flags);
+
+       return 0;
+}
+
 static int sp805_wdt_probe(struct udevice *dev)
 {
-       debug("%s: Probing wdt%u\n", __func__, dev->seq);
+       debug("%s: Probing wdt%u (sp805-wdt)\n", __func__, dev->seq);
 
        return 0;
 }
@@ -109,6 +116,7 @@ static const struct wdt_ops sp805_wdt_ops = {
        .start = sp805_wdt_start,
        .reset = sp805_wdt_reset,
        .stop = sp805_wdt_stop,
+       .expire_now = sp805_wdt_expire_now,
 };
 
 static const struct udevice_id sp805_wdt_ids[] = {