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path: root/drivers/watchdog/max63xx_wdt.c
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Diffstat (limited to 'drivers/watchdog/max63xx_wdt.c')
-rw-r--r--drivers/watchdog/max63xx_wdt.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c
index 6eb91d75760..3053ff05ca4 100644
--- a/drivers/watchdog/max63xx_wdt.c
+++ b/drivers/watchdog/max63xx_wdt.c
@@ -28,6 +28,7 @@
#include <linux/uaccess.h>
#include <linux/io.h>
#include <linux/device.h>
+#include <linux/slab.h>
#define DEFAULT_HEARTBEAT 60
#define MAX_HEARTBEAT 60
@@ -153,9 +154,14 @@ static void max63xx_wdt_enable(struct max63xx_timeout *entry)
static void max63xx_wdt_disable(void)
{
+ u8 val;
+
spin_lock(&io_lock);
- __raw_writeb(3, wdt_base);
+ val = __raw_readb(wdt_base);
+ val &= ~MAX6369_WDSET;
+ val |= 3;
+ __raw_writeb(val, wdt_base);
spin_unlock(&io_lock);