watchdog: Use pr_<fmt> and pr_<level>

Use the current logging styles.

Make sure all output has a prefix.
Add missing newlines.
Remove now unnecessary PFX, NAME, and miscellaneous other #defines.
Coalesce formats.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
index 0056256..cf39847 100644
--- a/drivers/watchdog/at91sam9_wdt.c
+++ b/drivers/watchdog/at91sam9_wdt.c
@@ -15,6 +15,8 @@
  * bootloader doesn't write to this register.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/errno.h>
 #include <linux/fs.h>
 #include <linux/init.h>
@@ -96,7 +98,7 @@
 		at91_wdt_reset();
 		mod_timer(&at91wdt_private.timer, jiffies + WDT_TIMEOUT);
 	} else
-		printk(KERN_CRIT DRV_NAME": I will reset your machine !\n");
+		pr_crit("I will reset your machine !\n");
 }
 
 /*
@@ -140,7 +142,7 @@
 	/* Check if disabled */
 	mr = wdt_read(AT91_WDT_MR);
 	if (mr & AT91_WDT_WDDIS) {
-		printk(KERN_ERR DRV_NAME": sorry, watchdog is disabled\n");
+		pr_err("sorry, watchdog is disabled\n");
 		return -EIO;
 	}
 
@@ -283,7 +285,7 @@
 	setup_timer(&at91wdt_private.timer, at91_ping, 0);
 	mod_timer(&at91wdt_private.timer, jiffies + WDT_TIMEOUT);
 
-	printk(KERN_INFO DRV_NAME " enabled (heartbeat=%d sec, nowayout=%d)\n",
+	pr_info("enabled (heartbeat=%d sec, nowayout=%d)\n",
 		heartbeat, nowayout);
 
 	return 0;