39 files changed, 371 insertions, 290 deletions

diff --git a/Documentation/watchdog/00-INDEX b/Documentation/watchdog/00-INDEX
index fc51128071c2..fc9082a1477a 100644
--- a/Documentation/watchdog/00-INDEX
+++ b/Documentation/watchdog/00-INDEX
@@ -1,5 +1,7 @@
 00-INDEX
         - this file.
+convert_drivers_to_kernel_api.txt
+        - how-to for converting old watchdog drivers to the new kernel API.
 hpwdt.txt
         - information on the HP iLO2 NMI watchdog
 pcwd-watchdog.txt
diff --git a/Documentation/watchdog/convert_drivers_to_kernel_api.txt b/Documentation/watchdog/convert_drivers_to_kernel_api.txt
index ae1e90036d06..be8119bb15d2 100644
--- a/Documentation/watchdog/convert_drivers_to_kernel_api.txt
+++ b/Documentation/watchdog/convert_drivers_to_kernel_api.txt
@@ -163,6 +163,25 @@ Here is a simple example for a watchdog device:
 +};
 
 
+Handle the 'nowayout' feature
+-----------------------------
+
+A few drivers use nowayout statically, i.e. there is no module parameter for it
+and only CONFIG_WATCHDOG_NOWAYOUT determines if the feature is going to be
+used. This needs to be converted by initializing the status variable of the
+watchdog_device like this:
+
+        .status = WATCHDOG_NOWAYOUT_INIT_STATUS,
+
+Most drivers, however, also allow runtime configuration of nowayout, usually
+by adding a module parameter. The conversion for this would be something like:
+
+        watchdog_set_nowayout(&s3c2410_wdd, nowayout);
+
+The module parameter itself needs to stay, everything else related to nowayout
+can go, though. This will likely be some code in open(), close() or write().
+
+
 Register the watchdog device
 ----------------------------
 
diff --git a/Documentation/watchdog/watchdog-kernel-api.txt b/Documentation/watchdog/watchdog-kernel-api.txt
index 4f7c894244d2..4b93c28e35c6 100644
--- a/Documentation/watchdog/watchdog-kernel-api.txt
+++ b/Documentation/watchdog/watchdog-kernel-api.txt
@@ -1,6 +1,6 @@
 The Linux WatchDog Timer Driver Core kernel API.
 ===============================================
-Last reviewed: 22-Jul-2011
+Last reviewed: 29-Nov-2011
 
 Wim Van Sebroeck <wim@iguana.be>
 
@@ -142,6 +142,14 @@ bit-operations. The status bits that are defined are:
 * WDOG_NO_WAY_OUT: this bit stores the nowayout setting for the watchdog.
   If this bit is set then the watchdog timer will not be able to stop.
 
+  To set the WDOG_NO_WAY_OUT status bit (before registering your watchdog
+  timer device) you can either:
+  * set it statically in your watchdog_device struct with
+        .status = WATCHDOG_NOWAYOUT_INIT_STATUS,
+    (this will set the value the same as CONFIG_WATCHDOG_NOWAYOUT) or
+  * use the following helper function:
+  static inline void watchdog_set_nowayout(struct watchdog_device *wdd, int nowayout)
+
 Note: The WatchDog Timer Driver Core supports the magic close feature and
 the nowayout feature. To use the magic close feature you must set the
 WDIOF_MAGICCLOSE bit in the options field of the watchdog's info structure.
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 79fd606b7cd5..877b107f77a7 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -772,6 +772,19 @@ config SMSC37B787_WDT
 
           Most people will say N.
 
+config VIA_WDT
+        tristate "VIA Watchdog Timer"
+        depends on X86
+        select WATCHDOG_CORE
+        ---help---
+        This is the driver for the hardware watchdog timer on VIA
+        southbridge chipset CX700, VX800/VX820 or VX855/VX875.
+
+        To compile this driver as a module, choose M here; the module
+        will be called via_wdt.
+
+        Most people will say N.
+
 config W83627HF_WDT
         tristate "W83627HF/W83627DHG Watchdog Timer"
         depends on X86
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index fe893e91935b..e8f479a16402 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -99,6 +99,7 @@ obj-$(CONFIG_SBC7240_WDT) += sbc7240_wdt.o
 obj-$(CONFIG_CPU5_WDT) += cpu5wdt.o
 obj-$(CONFIG_SMSC_SCH311X_WDT) += sch311x_wdt.o
 obj-$(CONFIG_SMSC37B787_WDT) += smsc37b787_wdt.o
+obj-$(CONFIG_VIA_WDT) += via_wdt.o
 obj-$(CONFIG_W83627HF_WDT) += w83627hf_wdt.o
 obj-$(CONFIG_W83697HF_WDT) += w83697hf_wdt.o
 obj-$(CONFIG_W83697UG_WDT) += w83697ug_wdt.o
diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
index b29221783598..502773ad5acd 100644
--- a/drivers/watchdog/ar7_wdt.c
+++ b/drivers/watchdog/ar7_wdt.c
@@ -70,8 +70,8 @@ struct ar7_wdt {
 };
 
 static unsigned long wdt_is_open;
-static spinlock_t wdt_lock;
 static unsigned expect_close;
+static DEFINE_SPINLOCK(wdt_lock);
 
 /* XXX currently fixed, allows max margin ~68.72 secs */
 #define prescale_value 0xffff
@@ -280,8 +280,6 @@ static int __devinit ar7_wdt_probe(struct platform_device *pdev)
 {
         int rc;
 
-        spin_lock_init(&wdt_lock);
-
         ar7_regs_wdt =
                 platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
         if (!ar7_regs_wdt) {
@@ -355,15 +353,4 @@ static struct platform_driver ar7_wdt_driver = {
         },
 };
 
-static int __init ar7_wdt_init(void)
-{
-        return platform_driver_register(&ar7_wdt_driver);
-}
-
-static void __exit ar7_wdt_cleanup(void)
-{
-        platform_driver_unregister(&ar7_wdt_driver);
-}
-
-module_init(ar7_wdt_init);
-module_exit(ar7_wdt_cleanup);
+module_platform_driver(ar7_wdt_driver);
diff --git a/drivers/watchdog/ath79_wdt.c b/drivers/watchdog/ath79_wdt.c
index 725c84bfdd76..9db808349f8b 100644
--- a/drivers/watchdog/ath79_wdt.c
+++ b/drivers/watchdog/ath79_wdt.c
@@ -68,17 +68,23 @@ static int max_timeout;
 static inline void ath79_wdt_keepalive(void)
 {
         ath79_reset_wr(AR71XX_RESET_REG_WDOG, wdt_freq * timeout);
+        /* flush write */
+        ath79_reset_rr(AR71XX_RESET_REG_WDOG);
 }
 
 static inline void ath79_wdt_enable(void)
 {
         ath79_wdt_keepalive();
         ath79_reset_wr(AR71XX_RESET_REG_WDOG_CTRL, WDOG_CTRL_ACTION_FCR);
+        /* flush write */
+        ath79_reset_rr(AR71XX_RESET_REG_WDOG_CTRL);
 }
 
 static inline void ath79_wdt_disable(void)
 {
         ath79_reset_wr(AR71XX_RESET_REG_WDOG_CTRL, WDOG_CTRL_ACTION_NONE);
+        /* flush write */
+        ath79_reset_rr(AR71XX_RESET_REG_WDOG_CTRL);
 }
 
 static int ath79_wdt_set_timeout(int val)
diff --git a/drivers/watchdog/bcm63xx_wdt.c b/drivers/watchdog/bcm63xx_wdt.c
index 5064e8317521..8dc7de641e26 100644
--- a/drivers/watchdog/bcm63xx_wdt.c
+++ b/drivers/watchdog/bcm63xx_wdt.c
@@ -311,18 +311,7 @@ static struct platform_driver bcm63xx_wdt = {
         }
 };
 
-static int __init bcm63xx_wdt_init(void)
-{
-        return platform_driver_register(&bcm63xx_wdt);
-}
-
-static void __exit bcm63xx_wdt_exit(void)
-{
-        platform_driver_unregister(&bcm63xx_wdt);
-}
-
-module_init(bcm63xx_wdt_init);
-module_exit(bcm63xx_wdt_exit);
+module_platform_driver(bcm63xx_wdt);
 
 MODULE_AUTHOR("Miguel Gaio <miguel.gaio@efixo.com>");
 MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
diff --git a/drivers/watchdog/cpu5wdt.c b/drivers/watchdog/cpu5wdt.c
index edd3475f41db..251c863d71dd 100644
--- a/drivers/watchdog/cpu5wdt.c
+++ b/drivers/watchdog/cpu5wdt.c
@@ -39,7 +39,7 @@
 static int verbose;
 static int port = 0x91;
 static int ticks = 10000;
-static spinlock_t cpu5wdt_lock;
+static DEFINE_SPINLOCK(cpu5wdt_lock);
 
 #define PFX                     "cpu5wdt: "
 
@@ -223,7 +223,6 @@ static int __devinit cpu5wdt_init(void)
                                 "port=0x%x, verbose=%i\n", port, verbose);
 
         init_completion(&cpu5wdt_device.stop);
-        spin_lock_init(&cpu5wdt_lock);
         cpu5wdt_device.queue = 0;
         setup_timer(&cpu5wdt_device.timer, cpu5wdt_trigger, 0);
         cpu5wdt_device.default_ticks = ticks;
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
index 1e013e8457b7..1b793dfd868f 100644
--- a/drivers/watchdog/cpwd.c
+++ b/drivers/watchdog/cpwd.c
@@ -687,15 +687,4 @@ static struct platform_driver cpwd_driver = {
         .remove         = __devexit_p(cpwd_remove),
 };
 
-static int __init cpwd_init(void)
-{
-        return platform_driver_register(&cpwd_driver);
-}
-
-static void __exit cpwd_exit(void)
-{
-        platform_driver_unregister(&cpwd_driver);
-}
-
-module_init(cpwd_init);
-module_exit(cpwd_exit);
+module_platform_driver(cpwd_driver);
diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index 51b5551b4e3f..c8c5c8032bcb 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -271,18 +271,7 @@ static struct platform_driver platform_wdt_driver = {
         .remove = __devexit_p(davinci_wdt_remove),
 };
 
-static int __init davinci_wdt_init(void)
-{
-        return platform_driver_register(&platform_wdt_driver);
-}
-
-static void __exit davinci_wdt_exit(void)
-{
-        platform_driver_unregister(&platform_wdt_driver);
-}
-
-module_init(davinci_wdt_init);
-module_exit(davinci_wdt_exit);
+module_platform_driver(platform_wdt_driver);
 
 MODULE_AUTHOR("Texas Instruments");
 MODULE_DESCRIPTION("DaVinci Watchdog Driver");
diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index f10f8c0abba4..1b0e3dd81c1a 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -358,17 +358,7 @@ static struct platform_driver dw_wdt_driver = {
         },
 };
 
-static int __init dw_wdt_watchdog_init(void)
-{
-        return platform_driver_register(&dw_wdt_driver);
-}
-module_init(dw_wdt_watchdog_init);
-
-static void __exit dw_wdt_watchdog_exit(void)
-{
-        platform_driver_unregister(&dw_wdt_driver);
-}
-module_exit(dw_wdt_watchdog_exit);
+module_platform_driver(dw_wdt_driver);
 
 MODULE_AUTHOR("Jamie Iles");
 MODULE_DESCRIPTION("Synopsys DesignWare Watchdog Driver");
diff --git a/drivers/watchdog/eurotechwdt.c b/drivers/watchdog/eurotechwdt.c
index 41018d429abb..3946c51099c0 100644
--- a/drivers/watchdog/eurotechwdt.c
+++ b/drivers/watchdog/eurotechwdt.c
@@ -64,7 +64,7 @@
 static unsigned long eurwdt_is_open;
 static int eurwdt_timeout;
 static char eur_expect_close;
-static spinlock_t eurwdt_lock;
+static DEFINE_SPINLOCK(eurwdt_lock);
 
 /*
  * You must set these - there is no sane way to probe for this board.
@@ -446,8 +446,6 @@ static int __init eurwdt_init(void)
                 goto outreg;
         }
 
-        spin_lock_init(&eurwdt_lock);
-
         ret = misc_register(&eurwdt_miscdev);
         if (ret) {
                 printk(KERN_ERR "eurwdt: can't misc_register on minor=%d\n",
diff --git a/drivers/watchdog/ibmasr.c b/drivers/watchdog/ibmasr.c
index 195e0f798e76..c7481ad51629 100644
--- a/drivers/watchdog/ibmasr.c
+++ b/drivers/watchdog/ibmasr.c
@@ -68,7 +68,7 @@ static char asr_expect_close;
 static unsigned int asr_type, asr_base, asr_length;
 static unsigned int asr_read_addr, asr_write_addr;
 static unsigned char asr_toggle_mask, asr_disable_mask;
-static spinlock_t asr_lock;
+static DEFINE_SPINLOCK(asr_lock);
 
 static void __asr_toggle(void)
 {
@@ -386,8 +386,6 @@ static int __init ibmasr_init(void)
         if (!asr_type)
                 return -ENODEV;
 
-        spin_lock_init(&asr_lock);
-
         rc = asr_get_base_address();
         if (rc)
                 return rc;
diff --git a/drivers/watchdog/indydog.c b/drivers/watchdog/indydog.c
index 1cc5609666d1..1475e09f9af2 100644
--- a/drivers/watchdog/indydog.c
+++ b/drivers/watchdog/indydog.c
@@ -28,7 +28,7 @@
 
 #define PFX "indydog: "
 static unsigned long indydog_alive;
-static spinlock_t indydog_lock;
+static DEFINE_SPINLOCK(indydog_lock);
 
 #define WATCHDOG_TIMEOUT 30             /* 30 sec default timeout */
 
@@ -185,8 +185,6 @@ static int __init watchdog_init(void)
 {
         int ret;
 
-        spin_lock_init(&indydog_lock);
-
         ret = register_reboot_notifier(&indydog_notifier);
         if (ret) {
                 printk(KERN_ERR PFX
diff --git a/drivers/watchdog/iop_wdt.c b/drivers/watchdog/iop_wdt.c
index aef94789019f..82fa7a92a8d2 100644
--- a/drivers/watchdog/iop_wdt.c
+++ b/drivers/watchdog/iop_wdt.c
@@ -37,7 +37,7 @@
 static int nowayout = WATCHDOG_NOWAYOUT;
 static unsigned long wdt_status;
 static unsigned long boot_status;
-static spinlock_t wdt_lock;
+static DEFINE_SPINLOCK(wdt_lock);
 
 #define WDT_IN_USE              0
 #define WDT_OK_TO_CLOSE         1
@@ -226,9 +226,6 @@ static int __init iop_wdt_init(void)
 {
         int ret;
 
-        spin_lock_init(&wdt_lock);
-
-
         /* check if the reset was caused by the watchdog timer */
         boot_status = (read_rcsr() & IOP_RCSR_WDT) ? WDIOF_CARDRESET : 0;
 
diff --git a/drivers/watchdog/ixp2000_wdt.c b/drivers/watchdog/ixp2000_wdt.c
index e86952a7168c..084f71aa855a 100644
--- a/drivers/watchdog/ixp2000_wdt.c
+++ b/drivers/watchdog/ixp2000_wdt.c
@@ -32,7 +32,7 @@
 static int nowayout = WATCHDOG_NOWAYOUT;
 static unsigned int heartbeat = 60;     /* (secs) Default is 1 minute */
 static unsigned long wdt_status;
-static spinlock_t wdt_lock;
+static DEFINE_SPINLOCK(wdt_lock);
 
 #define WDT_IN_USE              0
 #define WDT_OK_TO_CLOSE         1
@@ -189,7 +189,6 @@ static int __init ixp2000_wdt_init(void)
                 return -EIO;
         }
         wdt_tick_rate = (*IXP2000_T1_CLD * HZ) / 256;
-        spin_lock_init(&wdt_lock);
         return misc_register(&ixp2000_wdt_miscdev);
 }
 
diff --git a/drivers/watchdog/ixp4xx_wdt.c b/drivers/watchdog/ixp4xx_wdt.c
index e02c0ecda26b..4fc2e9ac26f7 100644
--- a/drivers/watchdog/ixp4xx_wdt.c
+++ b/drivers/watchdog/ixp4xx_wdt.c
@@ -181,7 +181,6 @@ static int __init ixp4xx_wdt_init(void)
 
                 return -ENODEV;
         }
-        spin_lock_init(&wdt_lock);
         boot_status = (*IXP4XX_OSST & IXP4XX_OSST_TIMER_WARM_RESET) ?
                         WDIOF_CARDRESET : 0;
         ret = misc_register(&ixp4xx_wdt_miscdev);
diff --git a/drivers/watchdog/jz4740_wdt.c b/drivers/watchdog/jz4740_wdt.c
index 684ba01fb540..17ef300bccc5 100644
--- a/drivers/watchdog/jz4740_wdt.c
+++ b/drivers/watchdog/jz4740_wdt.c
@@ -295,18 +295,7 @@ static struct platform_driver jz4740_wdt_driver = {
         },
 };
 
-
-static int __init jz4740_wdt_init(void)
-{
-        return platform_driver_register(&jz4740_wdt_driver);
-}
-module_init(jz4740_wdt_init);
-
-static void __exit jz4740_wdt_exit(void)
-{
-        platform_driver_unregister(&jz4740_wdt_driver);
-}
-module_exit(jz4740_wdt_exit);
+module_platform_driver(jz4740_wdt_driver);
 
 MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>");
 MODULE_DESCRIPTION("jz4740 Watchdog Driver");
diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
index 811471903e8a..51757a520e8f 100644
--- a/drivers/watchdog/ks8695_wdt.c
+++ b/drivers/watchdog/ks8695_wdt.c
@@ -42,7 +42,7 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
 
 
 static unsigned long ks8695wdt_busy;
-static spinlock_t ks8695_lock;
+static DEFINE_SPINLOCK(ks8695_lock);
 
 /* ......................................................................... */
 
@@ -288,7 +288,6 @@ static struct platform_driver ks8695wdt_driver = {
 
 static int __init ks8695_wdt_init(void)
 {
-        spin_lock_init(&ks8695_lock);
         /* Check that the heartbeat value is within range;
            if not reset to the default */
         if (ks8695_wdt_settimeout(wdt_time)) {
diff --git a/drivers/watchdog/lantiq_wdt.c b/drivers/watchdog/lantiq_wdt.c
index 102aed0efbf1..d3a63be2e28d 100644
--- a/drivers/watchdog/lantiq_wdt.c
+++ b/drivers/watchdog/lantiq_wdt.c
@@ -222,9 +222,6 @@ ltq_wdt_remove(struct platform_device *pdev)
 {
         misc_deregister(&ltq_wdt_miscdev);
 
-        if (ltq_wdt_membase)
-                iounmap(ltq_wdt_membase);
-
         return 0;
 }
 
diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c
index 73ba2fd8e591..af63ecfbfa6f 100644
--- a/drivers/watchdog/max63xx_wdt.c
+++ b/drivers/watchdog/max63xx_wdt.c
@@ -364,18 +364,7 @@ static struct platform_driver max63xx_wdt_driver = {
         },
 };
 
-static int __init max63xx_wdt_init(void)
-{
-        return platform_driver_register(&max63xx_wdt_driver);
-}
-
-static void __exit max63xx_wdt_exit(void)
-{
-        platform_driver_unregister(&max63xx_wdt_driver);
-}
-
-module_init(max63xx_wdt_init);
-module_exit(max63xx_wdt_exit);
+module_platform_driver(max63xx_wdt_driver);
 
 MODULE_AUTHOR("Marc Zyngier <maz@misterjones.org>");
 MODULE_DESCRIPTION("max63xx Watchdog Driver");
diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c
index ac37bb82392c..c29e31d99fe8 100644
--- a/drivers/watchdog/mtx-1_wdt.c
+++ b/drivers/watchdog/mtx-1_wdt.c
@@ -253,18 +253,7 @@ static struct platform_driver mtx1_wdt_driver = {
         .driver.owner = THIS_MODULE,
 };
 
-static int __init mtx1_wdt_init(void)
-{
-        return platform_driver_register(&mtx1_wdt_driver);
-}
-
-static void __exit mtx1_wdt_exit(void)
-{
-        platform_driver_unregister(&mtx1_wdt_driver);
-}
-
-module_init(mtx1_wdt_init);
-module_exit(mtx1_wdt_exit);
+module_platform_driver(mtx1_wdt_driver);
 
 MODULE_AUTHOR("Michael Stickel, Florian Fainelli");
 MODULE_DESCRIPTION("Driver for the MTX-1 watchdog");
diff --git a/drivers/watchdog/nuc900_wdt.c b/drivers/watchdog/nuc900_wdt.c
index 6cee33d4b161..50359bad9177 100644
--- a/drivers/watchdog/nuc900_wdt.c
+++ b/drivers/watchdog/nuc900_wdt.c
@@ -334,18 +334,7 @@ static struct platform_driver nuc900wdt_driver = {
         },
 };
 
-static int __init nuc900_wdt_init(void)
-{
-        return platform_driver_register(&nuc900wdt_driver);
-}
-
-static void __exit nuc900_wdt_exit(void)
-{
-        platform_driver_unregister(&nuc900wdt_driver);
-}
-
-module_init(nuc900_wdt_init);
-module_exit(nuc900_wdt_exit);
+module_platform_driver(nuc900wdt_driver);
 
 MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
 MODULE_DESCRIPTION("Watchdog driver for NUC900");
diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c
index 4ec741ac952c..f359ab85c3bc 100644
--- a/drivers/watchdog/of_xilinx_wdt.c
+++ b/drivers/watchdog/of_xilinx_wdt.c
@@ -414,18 +414,7 @@ static struct platform_driver xwdt_driver = {
         },
 };
 
-static int __init xwdt_init(void)
-{
-        return platform_driver_register(&xwdt_driver);
-}
-
-static void __exit xwdt_exit(void)
-{
-        platform_driver_unregister(&xwdt_driver);
-}
-
-module_init(xwdt_init);
-module_exit(xwdt_exit);
+module_platform_driver(xwdt_driver);
 
 MODULE_AUTHOR("Alejandro Cabrera <aldaya@gmail.com>");
 MODULE_DESCRIPTION("Xilinx Watchdog driver");
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 2b4acb86c191..4b33e3fd726b 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -55,7 +55,7 @@ module_param(timer_margin, uint, 0);
 MODULE_PARM_DESC(timer_margin, "initial watchdog timeout (in seconds)");
 
 static unsigned int wdt_trgr_pattern = 0x1234;
-static spinlock_t wdt_lock;
+static DEFINE_SPINLOCK(wdt_lock);
 
 struct omap_wdt_dev {
         void __iomem    *base;          /* physical */
@@ -232,6 +232,7 @@ static long omap_wdt_ioctl(struct file *file, unsigned int cmd,
                 if (cpu_is_omap24xx())
                         return put_user(omap_prcm_get_reset_sources(),
                                         (int __user *)arg);
+                return put_user(0, (int __user *)arg);
         case WDIOC_KEEPALIVE:
                 pm_runtime_get_sync(wdev->dev);
                 spin_lock(&wdt_lock);
@@ -437,19 +438,7 @@ static struct platform_driver omap_wdt_driver = {
         },
 };
 
-static int __init omap_wdt_init(void)
-{
-        spin_lock_init(&wdt_lock);
-        return platform_driver_register(&omap_wdt_driver);
-}
-
-static void __exit omap_wdt_exit(void)
-{
-        platform_driver_unregister(&omap_wdt_driver);
-}
-
-module_init(omap_wdt_init);
-module_exit(omap_wdt_exit);
+module_platform_driver(omap_wdt_driver);
 
 MODULE_AUTHOR("George G. Davis");
 MODULE_LICENSE("GPL");
diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c
index 2d9fb96a9ee9..4ad78f868515 100644
--- a/drivers/watchdog/orion_wdt.c
+++ b/drivers/watchdog/orion_wdt.c
@@ -41,7 +41,7 @@ static int heartbeat = -1;		/* module parameter (seconds) */
 static unsigned int wdt_max_duration;   /* (seconds) */
 static unsigned int wdt_tclk;
 static unsigned long wdt_status;
-static spinlock_t wdt_lock;
+static DEFINE_SPINLOCK(wdt_lock);
 
 static void orion_wdt_ping(void)
 {
@@ -294,19 +294,7 @@ static struct platform_driver orion_wdt_driver = {
         },
 };
 
-static int __init orion_wdt_init(void)
-{
-        spin_lock_init(&wdt_lock);
-        return platform_driver_register(&orion_wdt_driver);
-}
-
-static void __exit orion_wdt_exit(void)
-{
-        platform_driver_unregister(&orion_wdt_driver);
-}
-
-module_init(orion_wdt_init);
-module_exit(orion_wdt_exit);
+module_platform_driver(orion_wdt_driver);
 
 MODULE_AUTHOR("Sylver Bruneau <sylver.bruneau@googlemail.com>");
 MODULE_DESCRIPTION("Orion Processor Watchdog");
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index 614933225560..bd143c9dd3e6 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -334,18 +334,7 @@ static struct platform_driver platform_wdt_driver = {
         .remove = __devexit_p(pnx4008_wdt_remove),
 };
 
-static int __init pnx4008_wdt_init(void)
-{
-        return platform_driver_register(&platform_wdt_driver);
-}
-
-static void __exit pnx4008_wdt_exit(void)
-{
-        platform_driver_unregister(&platform_wdt_driver);
-}
-
-module_init(pnx4008_wdt_init);
-module_exit(pnx4008_wdt_exit);
+module_platform_driver(platform_wdt_driver);
 
 MODULE_AUTHOR("MontaVista Software, Inc. <source@mvista.com>");
 MODULE_DESCRIPTION("PNX4008 Watchdog Driver");
diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c
index d4c29b5311a4..bf7bc8aa1c01 100644
--- a/drivers/watchdog/rc32434_wdt.c
+++ b/drivers/watchdog/rc32434_wdt.c
@@ -332,18 +332,7 @@ static struct platform_driver rc32434_wdt_driver = {
         }
 };
 
-static int __init rc32434_wdt_init(void)
-{
-        return platform_driver_register(&rc32434_wdt_driver);
-}
-
-static void __exit rc32434_wdt_exit(void)
-{
-        platform_driver_unregister(&rc32434_wdt_driver);
-}
-
-module_init(rc32434_wdt_init);
-module_exit(rc32434_wdt_exit);
+module_platform_driver(rc32434_wdt_driver);
 
 MODULE_AUTHOR("Ondrej Zajicek <santiago@crfreenet.org>,"
                 "Florian Fainelli <florian@openwrt.org>");
diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c
index 428f8a1583e8..042ccc56ae26 100644
--- a/drivers/watchdog/rdc321x_wdt.c
+++ b/drivers/watchdog/rdc321x_wdt.c
@@ -293,18 +293,7 @@ static struct platform_driver rdc321x_wdt_driver = {
         },
 };
 
-static int __init rdc321x_wdt_init(void)
-{
-        return platform_driver_register(&rdc321x_wdt_driver);
-}
-
-static void __exit rdc321x_wdt_exit(void)
-{
-        platform_driver_unregister(&rdc321x_wdt_driver);
-}
-
-module_init(rdc321x_wdt_init);
-module_exit(rdc321x_wdt_exit);
+module_platform_driver(rdc321x_wdt_driver);
 
 MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
 MODULE_DESCRIPTION("RDC321x watchdog driver");
diff --git a/drivers/watchdog/riowd.c b/drivers/watchdog/riowd.c
index 109b533896b7..c7e17ceafa6a 100644
--- a/drivers/watchdog/riowd.c
+++ b/drivers/watchdog/riowd.c
@@ -247,15 +247,4 @@ static struct platform_driver riowd_driver = {
         .remove         = __devexit_p(riowd_remove),
 };
 
-static int __init riowd_init(void)
-{
-        return platform_driver_register(&riowd_driver);
-}
-
-static void __exit riowd_exit(void)
-{
-        platform_driver_unregister(&riowd_driver);
-}
-
-module_init(riowd_init);
-module_exit(riowd_exit);
+module_platform_driver(riowd_driver);
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index a79e3840782a..4bc3744e14e4 100644
--- a/drivers/watchdog/s3c2410_wdt.c
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -378,6 +378,8 @@ static int __devinit s3c2410wdt_probe(struct platform_device *pdev)
                                                         "cannot start\n");
         }
 
+        watchdog_set_nowayout(&s3c2410_wdd, nowayout);
+
         ret = watchdog_register_device(&s3c2410_wdd);
         if (ret) {
                 dev_err(dev, "cannot register watchdog (%d)\n", ret);
diff --git a/drivers/watchdog/stmp3xxx_wdt.c b/drivers/watchdog/stmp3xxx_wdt.c
index ac2346a452e5..4c2a4e8698f9 100644
--- a/drivers/watchdog/stmp3xxx_wdt.c
+++ b/drivers/watchdog/stmp3xxx_wdt.c
@@ -272,18 +272,7 @@ static struct platform_driver platform_wdt_driver = {
         .resume = stmp3xxx_wdt_resume,
 };
 
-static int __init stmp3xxx_wdt_init(void)
-{
-        return platform_driver_register(&platform_wdt_driver);
-}
-
-static void __exit stmp3xxx_wdt_exit(void)
-{
-        return platform_driver_unregister(&platform_wdt_driver);
-}
-
-module_init(stmp3xxx_wdt_init);
-module_exit(stmp3xxx_wdt_exit);
+module_platform_driver(platform_wdt_driver);
 
 MODULE_DESCRIPTION("STMP3XXX Watchdog Driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c
index 5a90a4a871dd..1490293dc7da 100644
--- a/drivers/watchdog/ts72xx_wdt.c
+++ b/drivers/watchdog/ts72xx_wdt.c
@@ -506,17 +506,7 @@ static struct platform_driver ts72xx_wdt_driver = {
         },
 };
 
-static __init int ts72xx_wdt_init(void)
-{
-        return platform_driver_register(&ts72xx_wdt_driver);
-}
-module_init(ts72xx_wdt_init);
-
-static __exit void ts72xx_wdt_exit(void)
-{
-        platform_driver_unregister(&ts72xx_wdt_driver);
-}
-module_exit(ts72xx_wdt_exit);
+module_platform_driver(ts72xx_wdt_driver);
 
 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
 MODULE_DESCRIPTION("TS-72xx SBC Watchdog");
diff --git a/drivers/watchdog/twl4030_wdt.c b/drivers/watchdog/twl4030_wdt.c
index b5045ca7e61c..0764c6239b98 100644
--- a/drivers/watchdog/twl4030_wdt.c
+++ b/drivers/watchdog/twl4030_wdt.c
@@ -256,17 +256,7 @@ static struct platform_driver twl4030_wdt_driver = {
         },
 };
 
-static int __devinit twl4030_wdt_init(void)
-{
-        return platform_driver_register(&twl4030_wdt_driver);
-}
-module_init(twl4030_wdt_init);
-
-static void __devexit twl4030_wdt_exit(void)
-{
-        platform_driver_unregister(&twl4030_wdt_driver);
-}
-module_exit(twl4030_wdt_exit);
+module_platform_driver(twl4030_wdt_driver);
 
 MODULE_AUTHOR("Nokia Corporation");
 MODULE_LICENSE("GPL");
diff --git a/drivers/watchdog/via_wdt.c b/drivers/watchdog/via_wdt.c
new file mode 100644
index 000000000000..026b4bbfa0aa
--- /dev/null
+++ b/drivers/watchdog/via_wdt.c
@@ -0,0 +1,267 @@
+/*
+ * VIA Chipset Watchdog Driver
+ *
+ * Copyright (C) 2011 Sigfox
+ * License terms: GNU General Public License (GPL) version 2
+ * Author: Marc Vertes <marc.vertes@sigfox.com>
+ * Based on a preliminary version from Harald Welte <HaraldWelte@viatech.com>
+ * Timer code by Wim Van Sebroeck <wim@iguana.be>
+ *
+ * Caveat: PnP must be enabled in BIOS to allow full access to watchdog
+ * control registers. If not, the watchdog must be configured in BIOS manually.
+ */
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/timer.h>
+#include <linux/watchdog.h>
+
+/* Configuration registers relative to the pci device */
+#define VIA_WDT_MMIO_BASE       0xe8    /* MMIO region base address */
+#define VIA_WDT_CONF            0xec    /* watchdog enable state */
+
+/* Relevant bits for the VIA_WDT_CONF register */
+#define VIA_WDT_CONF_ENABLE     0x01    /* 1: enable watchdog */
+#define VIA_WDT_CONF_MMIO       0x02    /* 1: enable watchdog MMIO */
+
+/*
+ * The MMIO region contains the watchog control register and the
+ * hardware timer counter.
+ */
+#define VIA_WDT_MMIO_LEN        8       /* MMIO region length in bytes */
+#define VIA_WDT_CTL             0       /* MMIO addr+0: state/control reg. */
+#define VIA_WDT_COUNT           4       /* MMIO addr+4: timer counter reg. */
+
+/* Bits for the VIA_WDT_CTL register */
+#define VIA_WDT_RUNNING         0x01    /* 0: stop, 1: running */
+#define VIA_WDT_FIRED           0x02    /* 1: restarted by expired watchdog */
+#define VIA_WDT_PWROFF          0x04    /* 0: reset, 1: poweroff */
+#define VIA_WDT_DISABLED        0x08    /* 1: timer is disabled */
+#define VIA_WDT_TRIGGER         0x80    /* 1: start a new countdown */
+
+/* Hardware heartbeat in seconds */
+#define WDT_HW_HEARTBEAT 1
+
+/* Timer heartbeat (500ms) */
+#define WDT_HEARTBEAT   (HZ/2)  /* should be <= ((WDT_HW_HEARTBEAT*HZ)/2) */
+
+/* User space timeout in seconds */
+#define WDT_TIMEOUT_MAX 1023    /* approx. 17 min. */
+#define WDT_TIMEOUT     60
+static int timeout = WDT_TIMEOUT;
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds, between 1 and 1023 "
+        "(default = " __MODULE_STRING(WDT_TIMEOUT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
+        "(default = " __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static struct watchdog_device wdt_dev;
+static struct resource wdt_res;
+static void __iomem *wdt_mem;
+static unsigned int mmio;
+static void wdt_timer_tick(unsigned long data);
+static DEFINE_TIMER(timer, wdt_timer_tick, 0, 0);
+                                        /* The timer that pings the watchdog */
+static unsigned long next_heartbeat;    /* the next_heartbeat for the timer */
+
+static inline void wdt_reset(void)
+{
+        unsigned int ctl = readl(wdt_mem);
+
+        writel(ctl | VIA_WDT_TRIGGER, wdt_mem);
+}
+
+/*
+ * Timer tick: the timer will make sure that the watchdog timer hardware
+ * is being reset in time. The conditions to do this are:
+ *  1) the watchog timer has been started and /dev/watchdog is open
+ *     and there is still time left before userspace should send the
+ *     next heartbeat/ping. (note: the internal heartbeat is much smaller
+ *     then the external/userspace heartbeat).
+ *  2) the watchdog timer has been stopped by userspace.
+ */
+static void wdt_timer_tick(unsigned long data)
+{
+        if (time_before(jiffies, next_heartbeat) ||
+           (!test_bit(WDOG_ACTIVE, &wdt_dev.status))) {
+                wdt_reset();
+                mod_timer(&timer, jiffies + WDT_HEARTBEAT);
+        } else
+                pr_crit("I will reboot your machine !\n");
+}
+
+static int wdt_ping(struct watchdog_device *wdd)
+{
+        /* calculate when the next userspace timeout will be */
+        next_heartbeat = jiffies + timeout * HZ;
+        return 0;
+}
+
+static int wdt_start(struct watchdog_device *wdd)
+{
+        unsigned int ctl = readl(wdt_mem);
+
+        writel(timeout, wdt_mem + VIA_WDT_COUNT);
+        writel(ctl | VIA_WDT_RUNNING | VIA_WDT_TRIGGER, wdt_mem);
+        wdt_ping(wdd);
+        mod_timer(&timer, jiffies + WDT_HEARTBEAT);
+        return 0;
+}
+
+static int wdt_stop(struct watchdog_device *wdd)
+{
+        unsigned int ctl = readl(wdt_mem);
+
+        writel(ctl & ~VIA_WDT_RUNNING, wdt_mem);
+        return 0;
+}
+
+static int wdt_set_timeout(struct watchdog_device *wdd,
+                           unsigned int new_timeout)
+{
+        if (new_timeout < 1 || new_timeout > WDT_TIMEOUT_MAX)
+                return -EINVAL;
+        writel(new_timeout, wdt_mem + VIA_WDT_COUNT);
+        timeout = new_timeout;
+        return 0;
+}
+
+static const struct watchdog_info wdt_info = {
+        .identity =     "VIA watchdog",
+        .options =      WDIOF_CARDRESET |
+                        WDIOF_SETTIMEOUT |
+                        WDIOF_MAGICCLOSE |
+                        WDIOF_KEEPALIVEPING,
+};
+
+static const struct watchdog_ops wdt_ops = {
+        .owner =        THIS_MODULE,
+        .start =        wdt_start,
+        .stop =         wdt_stop,
+        .ping =         wdt_ping,
+        .set_timeout =  wdt_set_timeout,
+};
+
+static struct watchdog_device wdt_dev = {
+        .info =         &wdt_info,
+        .ops =          &wdt_ops,
+};
+
+static int __devinit wdt_probe(struct pci_dev *pdev,
+                               const struct pci_device_id *ent)
+{
+        unsigned char conf;
+        int ret = -ENODEV;
+
+        if (pci_enable_device(pdev)) {
+                dev_err(&pdev->dev, "cannot enable PCI device\n");
+                return -ENODEV;
+        }
+
+        /*
+         * Allocate a MMIO region which contains watchdog control register
+         * and counter, then configure the watchdog to use this region.
+         * This is possible only if PnP is properly enabled in BIOS.
+         * If not, the watchdog must be configured in BIOS manually.
+         */
+        if (allocate_resource(&iomem_resource, &wdt_res, VIA_WDT_MMIO_LEN,
+                              0xf0000000, 0xffffff00, 0xff, NULL, NULL)) {
+                dev_err(&pdev->dev, "MMIO allocation failed\n");
+                goto err_out_disable_device;
+        }
+
+        pci_write_config_dword(pdev, VIA_WDT_MMIO_BASE, wdt_res.start);
+        pci_read_config_byte(pdev, VIA_WDT_CONF, &conf);
+        conf |= VIA_WDT_CONF_ENABLE | VIA_WDT_CONF_MMIO;
+        pci_write_config_byte(pdev, VIA_WDT_CONF, conf);
+
+        pci_read_config_dword(pdev, VIA_WDT_MMIO_BASE, &mmio);
+        if (mmio) {
+                dev_info(&pdev->dev, "VIA Chipset watchdog MMIO: %x\n", mmio);
+        } else {
+                dev_err(&pdev->dev, "MMIO setting failed. Check BIOS.\n");
+                goto err_out_resource;
+        }
+
+        if (!request_mem_region(mmio, VIA_WDT_MMIO_LEN, "via_wdt")) {
+                dev_err(&pdev->dev, "MMIO region busy\n");
+                goto err_out_resource;
+        }
+
+        wdt_mem = ioremap(mmio, VIA_WDT_MMIO_LEN);
+        if (wdt_mem == NULL) {
+                dev_err(&pdev->dev, "cannot remap VIA wdt MMIO registers\n");
+                goto err_out_release;
+        }
+
+        wdt_dev.timeout = timeout;
+        watchdog_set_nowayout(&wdt_dev, nowayout);
+        if (readl(wdt_mem) & VIA_WDT_FIRED)
+                wdt_dev.bootstatus |= WDIOF_CARDRESET;
+
+        ret = watchdog_register_device(&wdt_dev);
+        if (ret)
+                goto err_out_iounmap;
+
+        /* start triggering, in case of watchdog already enabled by BIOS */
+        mod_timer(&timer, jiffies + WDT_HEARTBEAT);
+        return 0;
+
+err_out_iounmap:
+        iounmap(wdt_mem);
+err_out_release:
+        release_mem_region(mmio, VIA_WDT_MMIO_LEN);
+err_out_resource:
+        release_resource(&wdt_res);
+err_out_disable_device:
+        pci_disable_device(pdev);
+        return ret;
+}
+
+static void __devexit wdt_remove(struct pci_dev *pdev)
+{
+        watchdog_unregister_device(&wdt_dev);
+        del_timer(&timer);
+        iounmap(wdt_mem);
+        release_mem_region(mmio, VIA_WDT_MMIO_LEN);
+        release_resource(&wdt_res);
+        pci_disable_device(pdev);
+}
+
+DEFINE_PCI_DEVICE_TABLE(wdt_pci_table) = {
+        { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_CX700) },
+        { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX800) },
+        { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX855) },
+        { 0 }
+};
+
+static struct pci_driver wdt_driver = {
+        .name           = "via_wdt",
+        .id_table       = wdt_pci_table,
+        .probe          = wdt_probe,
+        .remove         = __devexit_p(wdt_remove),
+};
+
+static int __init wdt_init(void)
+{
+        if (timeout < 1 || timeout > WDT_TIMEOUT_MAX)
+                timeout = WDT_TIMEOUT;
+        return pci_register_driver(&wdt_driver);
+}
+
+static void __exit wdt_exit(void)
+{
+        pci_unregister_driver(&wdt_driver);
+}
+
+module_init(wdt_init);
+module_exit(wdt_exit);
+
+MODULE_AUTHOR("Marc Vertes");
+MODULE_DESCRIPTION("Driver for watchdog timer on VIA chipset");
+MODULE_LICENSE("GPL");
diff --git a/drivers/watchdog/wm831x_wdt.c b/drivers/watchdog/wm831x_wdt.c
index e789a47db41f..263c883f0806 100644
--- a/drivers/watchdog/wm831x_wdt.c
+++ b/drivers/watchdog/wm831x_wdt.c
@@ -199,7 +199,8 @@ static int __devinit wm831x_wdt_probe(struct platform_device *pdev)
         if (reg & WM831X_WDOG_DEBUG)
                 dev_warn(wm831x->dev, "Watchdog is paused\n");
 
-        driver_data = kzalloc(sizeof(*driver_data), GFP_KERNEL);
+        driver_data = devm_kzalloc(&pdev->dev, sizeof(*driver_data),
+                                   GFP_KERNEL);
         if (!driver_data) {
                 dev_err(wm831x->dev, "Unable to alloacate watchdog device\n");
                 ret = -ENOMEM;
@@ -213,11 +214,9 @@ static int __devinit wm831x_wdt_probe(struct platform_device *pdev)
 
         wm831x_wdt->info = &wm831x_wdt_info;
         wm831x_wdt->ops = &wm831x_wdt_ops;
+        watchdog_set_nowayout(wm831x_wdt, nowayout);
         watchdog_set_drvdata(wm831x_wdt, driver_data);
 
-        if (nowayout)
-                wm831x_wdt->status |= WDOG_NO_WAY_OUT;
-
         reg = wm831x_reg_read(wm831x, WM831X_WATCHDOG);
         reg &= WM831X_WDOG_TO_MASK;
         for (i = 0; i < ARRAY_SIZE(wm831x_wdt_cfgs); i++)
@@ -252,7 +251,7 @@ static int __devinit wm831x_wdt_probe(struct platform_device *pdev)
                                 dev_err(wm831x->dev,
                                         "Failed to request update GPIO: %d\n",
                                         ret);
-                                goto err_alloc;
+                                goto err;
                         }
 
                         ret = gpio_direction_output(pdata->update_gpio, 0);
@@ -294,8 +293,6 @@ static int __devinit wm831x_wdt_probe(struct platform_device *pdev)
 err_gpio:
         if (driver_data->update_gpio)
                 gpio_free(driver_data->update_gpio);
-err_alloc:
-        kfree(driver_data);
 err:
         return ret;
 }
@@ -320,17 +317,7 @@ static struct platform_driver wm831x_wdt_driver = {
         },
 };
 
-static int __init wm831x_wdt_init(void)
-{
-        return platform_driver_register(&wm831x_wdt_driver);
-}
-module_init(wm831x_wdt_init);
-
-static void __exit wm831x_wdt_exit(void)
-{
-        platform_driver_unregister(&wm831x_wdt_driver);
-}
-module_exit(wm831x_wdt_exit);
+module_platform_driver(wm831x_wdt_driver);
 
 MODULE_AUTHOR("Mark Brown");
 MODULE_DESCRIPTION("WM831x Watchdog");
diff --git a/drivers/watchdog/wm8350_wdt.c b/drivers/watchdog/wm8350_wdt.c
index b68d928c8f90..909c78650d3e 100644
--- a/drivers/watchdog/wm8350_wdt.c
+++ b/drivers/watchdog/wm8350_wdt.c
@@ -311,17 +311,7 @@ static struct platform_driver wm8350_wdt_driver = {
         },
 };
 
-static int __init wm8350_wdt_init(void)
-{
-        return platform_driver_register(&wm8350_wdt_driver);
-}
-module_init(wm8350_wdt_init);
-
-static void __exit wm8350_wdt_exit(void)
-{
-        platform_driver_unregister(&wm8350_wdt_driver);
-}
-module_exit(wm8350_wdt_exit);
+module_platform_driver(wm8350_wdt_driver);
 
 MODULE_AUTHOR("Mark Brown");
 MODULE_DESCRIPTION("WM8350 Watchdog");
diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h
index 111843f88b2a..43ba5b3ce2a3 100644
--- a/include/linux/watchdog.h
+++ b/include/linux/watchdog.h
@@ -53,11 +53,7 @@ struct watchdog_info {
 
 #ifdef __KERNEL__
 
-#ifdef CONFIG_WATCHDOG_NOWAYOUT
-#define WATCHDOG_NOWAYOUT       1
-#else
-#define WATCHDOG_NOWAYOUT       0
-#endif
+#include <linux/bitops.h>
 
 struct watchdog_ops;
 struct watchdog_device;
@@ -122,6 +118,21 @@ struct watchdog_device {
 #define WDOG_NO_WAY_OUT         3       /* Is 'nowayout' feature set ? */
 };
 
+#ifdef CONFIG_WATCHDOG_NOWAYOUT
+#define WATCHDOG_NOWAYOUT               1
+#define WATCHDOG_NOWAYOUT_INIT_STATUS   (1 << WDOG_NO_WAY_OUT)
+#else
+#define WATCHDOG_NOWAYOUT               0
+#define WATCHDOG_NOWAYOUT_INIT_STATUS   0
+#endif
+
+/* Use the following function to set the nowayout feature */
+static inline void watchdog_set_nowayout(struct watchdog_device *wdd, int nowayout)
+{
+        if (nowayout)
+                set_bit(WDOG_NO_WAY_OUT, &wdd->status);
+}
+
 /* Use the following functions to manipulate watchdog driver specific data */
 static inline void watchdog_set_drvdata(struct watchdog_device *wdd, void *data)
 {