[PATCH] watchdog: sama5d4: fix WDD value to be always set to max

[Eugen.Hristev]

From: Eugen Hristev <eugen.hris...@microchip.com>

WDD value must be always set to max (0xFFF) otherwise the hardware
block will reset the board on the first ping of the watchdog.

Signed-off-by: Eugen Hristev <eugen.hris...@microchip.com>
---
 drivers/watchdog/sama5d4_wdt.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/watchdog/sama5d4_wdt.c b/drivers/watchdog/sama5d4_wdt.c
index 1e93c1b..d495336 100644
--- a/drivers/watchdog/sama5d4_wdt.c
+++ b/drivers/watchdog/sama5d4_wdt.c
@@ -111,9 +111,7 @@ static int sama5d4_wdt_set_timeout(struct watchdog_device 
*wdd,
        u32 value = WDT_SEC2TICKS(timeout);
 
        wdt->mr &= ~AT91_WDT_WDV;
-       wdt->mr &= ~AT91_WDT_WDD;
        wdt->mr |= AT91_WDT_SET_WDV(value);
-       wdt->mr |= AT91_WDT_SET_WDD(value);
 
        /*
         * WDDIS has to be 0 when updating WDD/WDV. The datasheet states: When
@@ -251,7 +249,7 @@ static int sama5d4_wdt_probe(struct platform_device *pdev)
 
        timeout = WDT_SEC2TICKS(wdd->timeout);
 
-       wdt->mr |= AT91_WDT_SET_WDD(timeout);
+       wdt->mr |= AT91_WDT_SET_WDD(WDT_SEC2TICKS(MAX_WDT_TIMEOUT));
        wdt->mr |= AT91_WDT_SET_WDV(timeout);
 
        ret = sama5d4_wdt_init(wdt);
-- 
2.7.4