Signed-off-by: Wenyou Yang <wenyou.y...@atmel.com>
---
 drivers/watchdog/at91sam9_wdt.c |   28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
index 31c914a..98e7d5a 100644
--- a/drivers/watchdog/at91sam9_wdt.c
+++ b/drivers/watchdog/at91sam9_wdt.c
@@ -34,11 +34,6 @@
 
 #define DRV_NAME "AT91SAM9 Watchdog"
 
-#define wdt_read(field) \
-       __raw_readl(at91wdt_private.base + field)
-#define wdt_write(field, val) \
-       __raw_writel((val), at91wdt_private.base + field)
-
 /* AT91SAM9 watchdog runs a 12bit counter @ 256Hz,
  * use this to convert a watchdog
  * value from/to milliseconds.
@@ -75,13 +70,24 @@ struct at91wdt_drvdata {
 
 /* ......................................................................... */
 
+static inline unsigned int wdt_read(struct at91wdt_drvdata *driver_data,
+                                       unsigned int field)
+{
+       return __raw_readl(driver_data->base + field);
+}
+
+static inline void wdt_write(struct at91wdt_drvdata *driver_data,
+                               unsigned int field, unsigned int val)
+{
+       __raw_writel((val), driver_data->base + field);
+}
 
 /*
  * Reload the watchdog timer.  (ie, pat the watchdog)
  */
-static inline void at91_wdt_reset(void)
+static inline void at91_wdt_reset(struct at91wdt_drvdata *driver_data)
 {
-       wdt_write(AT91_WDT_CR, AT91_WDT_KEY | AT91_WDT_WDRSTT);
+       wdt_write(driver_data, AT91_WDT_CR, AT91_WDT_KEY | AT91_WDT_WDRSTT);
 }
 
 /*
@@ -103,13 +109,15 @@ static void at91_ping(unsigned long data)
  * Set the watchdog time interval in 1/256Hz (write-once)
  * Counter is 12 bit.
  */
-static int at91_wdt_settimeout(unsigned int timeout)
+static int at91_wdt_settimeout(struct watchdog_device *wddev,
+                                       unsigned int timeout)
 {
+       struct at91wdt_drvdata *driver_data = watchdog_get_drvdata(wddev);
        unsigned int reg;
        unsigned int mr;
 
        /* Check if disabled */
-       mr = wdt_read(AT91_WDT_MR);
+       mr = wdt_read(driver_data, AT91_WDT_MR);
        if (mr & AT91_WDT_WDDIS) {
                pr_err("sorry, watchdog is disabled\n");
                return -EIO;
@@ -126,7 +134,7 @@ static int at91_wdt_settimeout(unsigned int timeout)
                | AT91_WDT_WDDBGHLT     /* disabled in debug mode */
                | AT91_WDT_WDD          /* restart at any time */
                | (timeout & AT91_WDT_WDV);  /* timer value */
-       wdt_write(AT91_WDT_MR, reg);
+       wdt_write(driver_data, AT91_WDT_MR, reg);
 
        return 0;
 }
-- 
1.7.9.5

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