watchdog: kempld_wdt: Fix bit mask definition

STAGE_CFG bits are defined as [5:4] bits. However, '(((x) & 0x30) << 4)'
handles [9:8] bits. Thus, it should be fixed in order to handle
[5:4] bits.

Signed-off-by: Jingoo Han <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>

diff --git a/drivers/watchdog/kempld_wdt.c b/drivers/watchdog/kempld_wdt.c
index 491419e0772a83f89ae34f16a96750d2349407d1..5c3d4df63e6835f534cb57a3eca724ce08c3ba47 100644 (file)
--- a/drivers/watchdog/kempld_wdt.c
+++ b/drivers/watchdog/kempld_wdt.c
@@ -35,7 +35,7 @@
 #define KEMPLD_WDT_STAGE_TIMEOUT(x)    (0x1b + (x) * 4)
 #define KEMPLD_WDT_STAGE_CFG(x)                (0x18 + (x))
 #define STAGE_CFG_GET_PRESCALER(x)     (((x) & 0x30) >> 4)
-#define STAGE_CFG_SET_PRESCALER(x)     (((x) & 0x30) << 4)
+#define STAGE_CFG_SET_PRESCALER(x)     (((x) & 0x3) << 4)
 #define STAGE_CFG_PRESCALER_MASK       0x30
 #define STAGE_CFG_ACTION_MASK          0x7
 #define STAGE_CFG_ASSERT               (1 << 3)