17 files changed, 518 insertions, 449 deletions
diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
index 2eb48c0df32..ef7b0d67095 100644
--- a/drivers/watchdog/ar7_wdt.c
+++ b/drivers/watchdog/ar7_wdt.c
@@ -69,7 +69,8 @@ struct ar7_wdt {
 	u32 prescale;
 };
 
-static struct semaphore open_semaphore;
+static unsigned long wdt_is_open;
+static spinlock_t wdt_lock;
 static unsigned expect_close;
 
 /* XXX currently fixed, allows max margin ~68.72 secs */
@@ -154,8 +155,10 @@ static void ar7_wdt_update_margin(int new_margin)
 	u32 change;
 
 	change = new_margin * (ar7_vbus_freq() / prescale_value);
-	if (change < 1) change = 1;
-	if (change > 0xffff) change = 0xffff;
+	if (change < 1)
+		change = 1;
+	if (change > 0xffff)
+		change = 0xffff;
 	ar7_wdt_change(change);
 	margin = change * prescale_value / ar7_vbus_freq();
 	printk(KERN_INFO DRVNAME
@@ -179,7 +182,7 @@ static void ar7_wdt_disable_wdt(void)
 static int ar7_wdt_open(struct inode *inode, struct file *file)
 {
 	/* only allow one at a time */
-	if (down_trylock(&open_semaphore))
+	if (test_and_set_bit(0, &wdt_is_open))
 		return -EBUSY;
 	ar7_wdt_enable_wdt();
 	expect_close = 0;
@@ -195,9 +198,7 @@ static int ar7_wdt_release(struct inode *inode, struct file *file)
 		"will not disable the watchdog timer\n");
 	else if (!nowayout)
 		ar7_wdt_disable_wdt();
-
-	up(&open_semaphore);
-
+	clear_bit(0, &wdt_is_open);
 	return 0;
 }
 
@@ -222,7 +223,9 @@ static ssize_t ar7_wdt_write(struct file *file, const char *data,
 	if (len) {
 		size_t i;
 
+		spin_lock(&wdt_lock);
 		ar7_wdt_kick(1);
+		spin_unlock(&wdt_lock);
 
 		expect_close = 0;
 		for (i = 0; i < len; ++i) {
@@ -237,8 +240,8 @@ static ssize_t ar7_wdt_write(struct file *file, const char *data,
 	return len;
 }
 
-static int ar7_wdt_ioctl(struct inode *inode, struct file *file,
-			 unsigned int cmd, unsigned long arg)
+static long ar7_wdt_ioctl(struct file *file,
+					unsigned int cmd, unsigned long arg)
 {
 	static struct watchdog_info ident = {
 		.identity = LONGNAME,
@@ -269,8 +272,10 @@ static int ar7_wdt_ioctl(struct inode *inode, struct file *file,
 		if (new_margin < 1)
 			return -EINVAL;
 
+		spin_lock(&wdt_lock);
 		ar7_wdt_update_margin(new_margin);
 		ar7_wdt_kick(1);
+		spin_unlock(&wdt_lock);
 
 	case WDIOC_GETTIMEOUT:
 		if (put_user(margin, (int *)arg))
@@ -282,7 +287,7 @@ static int ar7_wdt_ioctl(struct inode *inode, struct file *file,
 static const struct file_operations ar7_wdt_fops = {
 	.owner		= THIS_MODULE,
 	.write		= ar7_wdt_write,
-	.ioctl		= ar7_wdt_ioctl,
+	.unlocked_ioctl	= ar7_wdt_ioctl,
 	.open		= ar7_wdt_open,
 	.release	= ar7_wdt_release,
 };
@@ -297,6 +302,8 @@ static int __init ar7_wdt_init(void)
 {
 	int rc;
 
+	spin_lock_init(&wdt_lock);
+
 	ar7_wdt_get_regs();
 
 	if (!request_mem_region(ar7_regs_wdt, sizeof(struct ar7_wdt),
@@ -312,8 +319,6 @@ static int __init ar7_wdt_init(void)
 	ar7_wdt_prescale(prescale_value);
 	ar7_wdt_update_margin(margin);
 
-	sema_init(&open_semaphore, 1);
-
 	rc = register_reboot_notifier(&ar7_wdt_notifier);
 	if (rc) {
 		printk(KERN_ERR DRVNAME
diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
index 9ff9a956532..bf872aa2b9f 100644
--- a/drivers/watchdog/at91rm9200_wdt.c
+++ b/drivers/watchdog/at91rm9200_wdt.c
@@ -21,7 +21,7 @@
 #include <linux/types.h>
 #include <linux/watchdog.h>
 #include <asm/uaccess.h>
-#include <asm/arch/at91_st.h>
+#include <mach/at91_st.h>
 
 
 #define WDT_DEFAULT_TIME	5	/* seconds */
diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index 1782c79eff0..003dffe5cb1 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -23,7 +23,7 @@
 #include <linux/platform_device.h>
 #include <linux/spinlock.h>
 
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
diff --git a/drivers/watchdog/ep93xx_wdt.c b/drivers/watchdog/ep93xx_wdt.c
index 0e4787a0bb8..af8ef14c0e4 100644
--- a/drivers/watchdog/ep93xx_wdt.c
+++ b/drivers/watchdog/ep93xx_wdt.c
@@ -29,7 +29,7 @@
 #include <linux/watchdog.h>
 #include <linux/timer.h>
 
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 #include <asm/uaccess.h>
 
 #define WDT_VERSION	"0.3"
diff --git a/drivers/watchdog/iop_wdt.c b/drivers/watchdog/iop_wdt.c
index bbbd91af754..1946dd06d81 100644
--- a/drivers/watchdog/iop_wdt.c
+++ b/drivers/watchdog/iop_wdt.c
@@ -32,7 +32,7 @@
 #include <linux/miscdevice.h>
 #include <linux/watchdog.h>
 #include <linux/uaccess.h>
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 
 static int nowayout = WATCHDOG_NOWAYOUT;
 static unsigned long wdt_status;
diff --git a/drivers/watchdog/it8712f_wdt.c b/drivers/watchdog/it8712f_wdt.c
index 445b7e81211..51bfd572183 100644
--- a/drivers/watchdog/it8712f_wdt.c
+++ b/drivers/watchdog/it8712f_wdt.c
@@ -30,9 +30,8 @@
 #include <linux/fs.h>
 #include <linux/pci.h>
 #include <linux/spinlock.h>
-
-#include <asm/uaccess.h>
-#include <asm/io.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
 
 #define NAME "it8712f_wdt"
 
@@ -50,7 +49,7 @@ static int nowayout = WATCHDOG_NOWAYOUT;
 module_param(nowayout, int, 0);
 MODULE_PARM_DESC(nowayout, "Disable watchdog shutdown on close");
 
-static struct semaphore it8712f_wdt_sem;
+static unsigned long wdt_open;
 static unsigned expect_close;
 static spinlock_t io_lock;
 static unsigned char revision;
@@ -86,22 +85,19 @@ static unsigned short address;
 #define WDT_OUT_PWROK	0x10
 #define WDT_OUT_KRST	0x40
 
-static int
-superio_inb(int reg)
+static int superio_inb(int reg)
 {
 	outb(reg, REG);
 	return inb(VAL);
 }
 
-static void
-superio_outb(int val, int reg)
+static void superio_outb(int val, int reg)
 {
 	outb(reg, REG);
 	outb(val, VAL);
 }
 
-static int
-superio_inw(int reg)
+static int superio_inw(int reg)
 {
 	int val;
 	outb(reg++, REG);
@@ -111,15 +107,13 @@ superio_inw(int reg)
 	return val;
 }
 
-static inline void
-superio_select(int ldn)
+static inline void superio_select(int ldn)
 {
 	outb(LDN, REG);
 	outb(ldn, VAL);
 }
 
-static inline void
-superio_enter(void)
+static inline void superio_enter(void)
 {
 	spin_lock(&io_lock);
 	outb(0x87, REG);
@@ -128,22 +122,19 @@ superio_enter(void)
 	outb(0x55, REG);
 }
 
-static inline void
-superio_exit(void)
+static inline void superio_exit(void)
 {
 	outb(0x02, REG);
 	outb(0x02, VAL);
 	spin_unlock(&io_lock);
 }
 
-static inline void
-it8712f_wdt_ping(void)
+static inline void it8712f_wdt_ping(void)
 {
 	inb(address);
 }
 
-static void
-it8712f_wdt_update_margin(void)
+static void it8712f_wdt_update_margin(void)
 {
 	int config = WDT_OUT_KRST | WDT_OUT_PWROK;
 	int units = margin;
@@ -165,8 +156,7 @@ it8712f_wdt_update_margin(void)
 	superio_outb(units, WDT_TIMEOUT);
 }
 
-static int
-it8712f_wdt_get_status(void)
+static int it8712f_wdt_get_status(void)
 {
 	if (superio_inb(WDT_CONTROL) & 0x01)
 		return WDIOF_CARDRESET;
@@ -174,8 +164,7 @@ it8712f_wdt_get_status(void)
 		return 0;
 }
 
-static void
-it8712f_wdt_enable(void)
+static void it8712f_wdt_enable(void)
 {
 	printk(KERN_DEBUG NAME ": enabling watchdog timer\n");
 	superio_enter();
@@ -190,8 +179,7 @@ it8712f_wdt_enable(void)
 	it8712f_wdt_ping();
 }
 
-static void
-it8712f_wdt_disable(void)
+static void it8712f_wdt_disable(void)
 {
 	printk(KERN_DEBUG NAME ": disabling watchdog timer\n");
 
@@ -207,8 +195,7 @@ it8712f_wdt_disable(void)
 	superio_exit();
 }
 
-static int
-it8712f_wdt_notify(struct notifier_block *this,
+static int it8712f_wdt_notify(struct notifier_block *this,
 		    unsigned long code, void *unused)
 {
 	if (code == SYS_HALT || code == SYS_POWER_OFF)
@@ -222,9 +209,8 @@ static struct notifier_block it8712f_wdt_notifier = {
 	.notifier_call = it8712f_wdt_notify,
 };
 
-static ssize_t
-it8712f_wdt_write(struct file *file, const char __user *data,
-	size_t len, loff_t *ppos)
+static ssize_t it8712f_wdt_write(struct file *file, const char __user *data,
+					size_t len, loff_t *ppos)
 {
 	/* check for a magic close character */
 	if (len) {
@@ -245,9 +231,8 @@ it8712f_wdt_write(struct file *file, const char __user *data,
 	return len;
 }
 
-static int
-it8712f_wdt_ioctl(struct inode *inode, struct file *file,
-	unsigned int cmd, unsigned long arg)
+static long it8712f_wdt_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
 {
 	void __user *argp = (void __user *)arg;
 	int __user *p = argp;
@@ -302,19 +287,16 @@ it8712f_wdt_ioctl(struct inode *inode, struct file *file,
 	}
 }
 
-static int
-it8712f_wdt_open(struct inode *inode, struct file *file)
+static int it8712f_wdt_open(struct inode *inode, struct file *file)
 {
 	/* only allow one at a time */
-	if (down_trylock(&it8712f_wdt_sem))
+	if (test_and_set_bit(0, &wdt_open))
 		return -EBUSY;
 	it8712f_wdt_enable();
-
 	return nonseekable_open(inode, file);
 }
 
-static int
-it8712f_wdt_release(struct inode *inode, struct file *file)
+static int it8712f_wdt_release(struct inode *inode, struct file *file)
 {
 	if (expect_close != 42) {
 		printk(KERN_WARNING NAME
@@ -324,7 +306,7 @@ it8712f_wdt_release(struct inode *inode, struct file *file)
 		it8712f_wdt_disable();
 	}
 	expect_close = 0;
-	up(&it8712f_wdt_sem);
+	clear_bit(0, &wdt_open);
 
 	return 0;
 }
@@ -333,7 +315,7 @@ static const struct file_operations it8712f_wdt_fops = {
 	.owner = THIS_MODULE,
 	.llseek = no_llseek,
 	.write = it8712f_wdt_write,
-	.ioctl = it8712f_wdt_ioctl,
+	.unlocked_ioctl = it8712f_wdt_ioctl,
 	.open = it8712f_wdt_open,
 	.release = it8712f_wdt_release,
 };
@@ -344,8 +326,7 @@ static struct miscdevice it8712f_wdt_miscdev = {
 	.fops = &it8712f_wdt_fops,
 };
 
-static int __init
-it8712f_wdt_find(unsigned short *address)
+static int __init it8712f_wdt_find(unsigned short *address)
 {
 	int err = -ENODEV;
 	int chip_type;
@@ -387,8 +368,7 @@ exit:
 	return err;
 }
 
-static int __init
-it8712f_wdt_init(void)
+static int __init it8712f_wdt_init(void)
 {
 	int err = 0;
 
@@ -404,8 +384,6 @@ it8712f_wdt_init(void)
 
 	it8712f_wdt_disable();
 
-	sema_init(&it8712f_wdt_sem, 1);
-
 	err = register_reboot_notifier(&it8712f_wdt_notifier);
 	if (err) {
 		printk(KERN_ERR NAME ": unable to register reboot notifier\n");
@@ -430,8 +408,7 @@ out:
 	return err;
 }
 
-static void __exit
-it8712f_wdt_exit(void)
+static void __exit it8712f_wdt_exit(void)
 {
 	misc_deregister(&it8712f_wdt_miscdev);
 	unregister_reboot_notifier(&it8712f_wdt_notifier);
diff --git a/drivers/watchdog/ixp2000_wdt.c b/drivers/watchdog/ixp2000_wdt.c
index dc7548dcaf3..4226dae7d26 100644
--- a/drivers/watchdog/ixp2000_wdt.c
+++ b/drivers/watchdog/ixp2000_wdt.c
@@ -26,7 +26,7 @@
 #include <linux/init.h>
 #include <linux/bitops.h>
 
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 #include <asm/uaccess.h>
 
 static int nowayout = WATCHDOG_NOWAYOUT;
diff --git a/drivers/watchdog/ixp4xx_wdt.c b/drivers/watchdog/ixp4xx_wdt.c
index 5864bb865cf..2313fad0dbb 100644
--- a/drivers/watchdog/ixp4xx_wdt.c
+++ b/drivers/watchdog/ixp4xx_wdt.c
@@ -23,7 +23,7 @@
 #include <linux/init.h>
 #include <linux/bitops.h>
 
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 #include <asm/uaccess.h>
 
 static int nowayout = WATCHDOG_NOWAYOUT;
diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
index df5a6b811cc..d21a6407fe2 100644
--- a/drivers/watchdog/ks8695_wdt.c
+++ b/drivers/watchdog/ks8695_wdt.c
@@ -21,7 +21,7 @@
 #include <linux/watchdog.h>
 #include <asm/io.h>
 #include <asm/uaccess.h>
-#include <asm/arch/regs-timer.h>
+#include <mach/regs-timer.h>
 
 
 #define WDT_DEFAULT_TIME	5	/* seconds */
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 74bc39aa1ce..74a10d50607 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -43,9 +43,9 @@
 
 #include <asm/io.h>
 #include <asm/uaccess.h>
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 
-#include <asm/arch/prcm.h>
+#include <mach/prcm.h>
 
 #include "omap_wdt.h"
 
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index 6b8483d3c78..f431a0427ea 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -29,7 +29,7 @@
 #include <linux/clk.h>
 #include <linux/spinlock.h>
 
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index 98532c0e068..f1fe800658f 100644
--- a/drivers/watchdog/s3c2410_wdt.c
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -46,11 +46,10 @@
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/clk.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
 
-#include <asm/uaccess.h>
-#include <asm/io.h>
-
-#include <asm/arch/map.h>
+#include <mach/map.h>
 
 #undef S3C_VA_WATCHDOG
 #define S3C_VA_WATCHDOG (0)
@@ -65,8 +64,8 @@
 static int nowayout	= WATCHDOG_NOWAYOUT;
 static int tmr_margin	= CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME;
 static int tmr_atboot	= CONFIG_S3C2410_WATCHDOG_ATBOOT;
-static int soft_noboot	= 0;
-static int debug	= 0;
+static int soft_noboot;
+static int debug;
 
 module_param(tmr_margin,  int, 0);
 module_param(tmr_atboot,  int, 0);
@@ -74,24 +73,23 @@ module_param(nowayout,    int, 0);
 module_param(soft_noboot, int, 0);
 module_param(debug,	  int, 0);
 
-MODULE_PARM_DESC(tmr_margin, "Watchdog tmr_margin in seconds. default=" __MODULE_STRING(CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME) ")");
-
-MODULE_PARM_DESC(tmr_atboot, "Watchdog is started at boot time if set to 1, default=" __MODULE_STRING(CONFIG_S3C2410_WATCHDOG_ATBOOT));
-
-MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-
+MODULE_PARM_DESC(tmr_margin, "Watchdog tmr_margin in seconds. default="
+		__MODULE_STRING(CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME) ")");
+MODULE_PARM_DESC(tmr_atboot,
+		"Watchdog is started at boot time if set to 1, default="
+			__MODULE_STRING(CONFIG_S3C2410_WATCHDOG_ATBOOT));
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+			__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
 MODULE_PARM_DESC(soft_noboot, "Watchdog action, set to 1 to ignore reboots, 0 to reboot (default depends on ONLY_TESTING)");
-
 MODULE_PARM_DESC(debug, "Watchdog debug, set to >1 for debug, (default 0)");
 
 
 typedef enum close_state {
 	CLOSE_STATE_NOT,
-	CLOSE_STATE_ALLOW=0x4021
+	CLOSE_STATE_ALLOW = 0x4021
 } close_state_t;
 
-static DECLARE_MUTEX(open_lock);
-
+static unsigned long open_lock;
 static struct device    *wdt_dev;	/* platform device attached to */
 static struct resource	*wdt_mem;
 static struct resource	*wdt_irq;
@@ -99,38 +97,58 @@ static struct clk	*wdt_clock;
 static void __iomem	*wdt_base;
 static unsigned int	 wdt_count;
 static close_state_t	 allow_close;
+static DEFINE_SPINLOCK(wdt_lock);
 
 /* watchdog control routines */
 
 #define DBG(msg...) do { \
 	if (debug) \
 		printk(KERN_INFO msg); \
-	} while(0)
+	} while (0)
 
 /* functions */
 
-static int s3c2410wdt_keepalive(void)
+static void s3c2410wdt_keepalive(void)
 {
+	spin_lock(&wdt_lock);
 	writel(wdt_count, wdt_base + S3C2410_WTCNT);
-	return 0;
+	spin_unlock(&wdt_lock);
 }
 
-static int s3c2410wdt_stop(void)
+static void __s3c2410wdt_stop(void)
 {
 	unsigned long wtcon;
 
+	spin_lock(&wdt_lock);
 	wtcon = readl(wdt_base + S3C2410_WTCON);
 	wtcon &= ~(S3C2410_WTCON_ENABLE | S3C2410_WTCON_RSTEN);
 	writel(wtcon, wdt_base + S3C2410_WTCON);
+	spin_unlock(&wdt_lock);
+}
 
-	return 0;
+static void __s3c2410wdt_stop(void)
+{
+	unsigned long wtcon;
+
+	wtcon = readl(wdt_base + S3C2410_WTCON);
+	wtcon &= ~(S3C2410_WTCON_ENABLE | S3C2410_WTCON_RSTEN);
+	writel(wtcon, wdt_base + S3C2410_WTCON);
+}
+
+static void s3c2410wdt_stop(void)
+{
+	spin_lock(&wdt_lock);
+	__s3c2410wdt_stop();
+	spin_unlock(&wdt_lock);
 }
 
-static int s3c2410wdt_start(void)
+static void s3c2410wdt_start(void)
 {
 	unsigned long wtcon;
 
-	s3c2410wdt_stop();
+	spin_lock(&wdt_lock);
+
+	__s3c2410wdt_stop();
 
 	wtcon = readl(wdt_base + S3C2410_WTCON);
 	wtcon |= S3C2410_WTCON_ENABLE | S3C2410_WTCON_DIV128;
@@ -149,6 +167,7 @@ static int s3c2410wdt_start(void)
 	writel(wdt_count, wdt_base + S3C2410_WTDAT);
 	writel(wdt_count, wdt_base + S3C2410_WTCNT);
 	writel(wtcon, wdt_base + S3C2410_WTCON);
+	spin_unlock(&wdt_lock);
 
 	return 0;
 }
@@ -211,7 +230,7 @@ static int s3c2410wdt_set_heartbeat(int timeout)
 
 static int s3c2410wdt_open(struct inode *inode, struct file *file)
 {
-	if(down_trylock(&open_lock))
+	if (test_and_set_bit(0, &open_lock))
 		return -EBUSY;
 
 	if (nowayout)
@@ -231,15 +250,14 @@ static int s3c2410wdt_release(struct inode *inode, struct file *file)
 	 * 	Lock it in if it's a module and we set nowayout
 	 */
 
-	if (allow_close == CLOSE_STATE_ALLOW) {
+	if (allow_close == CLOSE_STATE_ALLOW)
 		s3c2410wdt_stop();
-	} else {
+	else {
 		dev_err(wdt_dev, "Unexpected close, not stopping watchdog\n");
 		s3c2410wdt_keepalive();
 	}
-
 	allow_close = CLOSE_STATE_NOT;
-	up(&open_lock);
+	clear_bit(0, &open_lock);
 	return 0;
 }
 
@@ -249,7 +267,7 @@ static ssize_t s3c2410wdt_write(struct file *file, const char __user *data,
 	/*
 	 *	Refresh the timer.
 	 */
-	if(len) {
+	if (len) {
 		if (!nowayout) {
 			size_t i;
 
@@ -265,7 +283,6 @@ static ssize_t s3c2410wdt_write(struct file *file, const char __user *data,
 					allow_close = CLOSE_STATE_ALLOW;
 			}
 		}
-
 		s3c2410wdt_keepalive();
 	}
 	return len;
@@ -273,48 +290,41 @@ static ssize_t s3c2410wdt_write(struct file *file, const char __user *data,
 
 #define OPTIONS WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE
 
-static struct watchdog_info s3c2410_wdt_ident = {
+static const struct watchdog_info s3c2410_wdt_ident = {
 	.options          =     OPTIONS,
 	.firmware_version =	0,
 	.identity         =	"S3C2410 Watchdog",
 };
 
 
-static int s3c2410wdt_ioctl(struct inode *inode, struct file *file,
-	unsigned int cmd, unsigned long arg)
+static long s3c2410wdt_ioctl(struct file *file,	unsigned int cmd,
+							unsigned long arg)
 {
 	void __user *argp = (void __user *)arg;
 	int __user *p = argp;
 	int new_margin;
 
 	switch (cmd) {
-		default:
-			return -ENOTTY;
-
-		case WDIOC_GETSUPPORT:
-			return copy_to_user(argp, &s3c2410_wdt_ident,
-				sizeof(s3c2410_wdt_ident)) ? -EFAULT : 0;
-
-		case WDIOC_GETSTATUS:
-		case WDIOC_GETBOOTSTATUS:
-			return put_user(0, p);
-
-		case WDIOC_KEEPALIVE:
-			s3c2410wdt_keepalive();
-			return 0;
-
-		case WDIOC_SETTIMEOUT:
-			if (get_user(new_margin, p))
-				return -EFAULT;
-
-			if (s3c2410wdt_set_heartbeat(new_margin))
-				return -EINVAL;
-
-			s3c2410wdt_keepalive();
-			return put_user(tmr_margin, p);
-
-		case WDIOC_GETTIMEOUT:
-			return put_user(tmr_margin, p);
+	default:
+		return -ENOTTY;
+	case WDIOC_GETSUPPORT:
+		return copy_to_user(argp, &s3c2410_wdt_ident,
+			sizeof(s3c2410_wdt_ident)) ? -EFAULT : 0;
+	case WDIOC_GETSTATUS:
+	case WDIOC_GETBOOTSTATUS:
+		return put_user(0, p);
+	case WDIOC_KEEPALIVE:
+		s3c2410wdt_keepalive();
+		return 0;
+	case WDIOC_SETTIMEOUT:
+		if (get_user(new_margin, p))
+			return -EFAULT;
+		if (s3c2410wdt_set_heartbeat(new_margin))
+			return -EINVAL;
+		s3c2410wdt_keepalive();
+		return put_user(tmr_margin, p);
+	case WDIOC_GETTIMEOUT:
+		return put_user(tmr_margin, p);
 	}
 }
 
@@ -324,7 +334,7 @@ static const struct file_operations s3c2410wdt_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
 	.write		= s3c2410wdt_write,
-	.ioctl		= s3c2410wdt_ioctl,
+	.unlocked_ioctl	= s3c2410wdt_ioctl,
 	.open		= s3c2410wdt_open,
 	.release	= s3c2410wdt_release,
 };
@@ -411,14 +421,15 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
 	 * not, try the default value */
 
 	if (s3c2410wdt_set_heartbeat(tmr_margin)) {
-		started = s3c2410wdt_set_heartbeat(CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME);
+		started = s3c2410wdt_set_heartbeat(
+					CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME);
 
-		if (started == 0) {
-			dev_info(dev,"tmr_margin value out of range, default %d used\n",
+		if (started == 0)
+			dev_info(dev,
+			   "tmr_margin value out of range, default %d used\n",
 			       CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME);
-		} else {
+		else
 			dev_info(dev, "default timer value is out of range, cannot start\n");
-		}
 	}
 
 	ret = misc_register(&s3c2410wdt_miscdev);
@@ -447,7 +458,7 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
 		 (wtcon & S3C2410_WTCON_ENABLE) ?  "" : "in",
 		 (wtcon & S3C2410_WTCON_RSTEN) ? "" : "dis",
 		 (wtcon & S3C2410_WTCON_INTEN) ? "" : "en");
-	
+
 	return 0;
 
  err_clk:
@@ -487,7 +498,7 @@ static int s3c2410wdt_remove(struct platform_device *dev)
 
 static void s3c2410wdt_shutdown(struct platform_device *dev)
 {
-	s3c2410wdt_stop();	
+	s3c2410wdt_stop();
 }
 
 #ifdef CONFIG_PM
@@ -540,7 +551,8 @@ static struct platform_driver s3c2410wdt_driver = {
 };
 
 
-static char banner[] __initdata = KERN_INFO "S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics\n";
+static char banner[] __initdata =
+	KERN_INFO "S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics\n";
 
 static int __init watchdog_init(void)
 {
diff --git a/drivers/watchdog/sa1100_wdt.c b/drivers/watchdog/sa1100_wdt.c
index e42002d2f81..97d9da758dc 100644
--- a/drivers/watchdog/sa1100_wdt.c
+++ b/drivers/watchdog/sa1100_wdt.c
@@ -28,12 +28,11 @@
 #include <linux/bitops.h>
 
 #ifdef CONFIG_ARCH_PXA
-#include <asm/arch/pxa-regs.h>
+#include <mach/pxa-regs.h>
 #endif
 
-#include <asm/arch/reset.h>
-
-#include <asm/hardware.h>
+#include <mach/reset.h>
+#include <mach/hardware.h>
 #include <asm/uaccess.h>
 
 #define OSCR_FREQ		CLOCK_TICK_RATE
diff --git a/drivers/watchdog/sc1200wdt.c b/drivers/watchdog/sc1200wdt.c
index 35cddff7020..621ebad56d8 100644
--- a/drivers/watchdog/sc1200wdt.c
+++ b/drivers/watchdog/sc1200wdt.c
@@ -15,14 +15,18 @@
  *
  *	Changelog:
  *	20020220 Zwane Mwaikambo	Code based on datasheet, no hardware.
- *	20020221 Zwane Mwaikambo	Cleanups as suggested by Jeff Garzik and Alan Cox.
+ *	20020221 Zwane Mwaikambo	Cleanups as suggested by Jeff Garzik
+ *					and Alan Cox.
  *	20020222 Zwane Mwaikambo	Added probing.
  *	20020225 Zwane Mwaikambo	Added ISAPNP support.
  *	20020412 Rob Radez		Broke out start/stop functions
- *		 <rob@osinvestor.com>	Return proper status instead of temperature warning
- *					Add WDIOC_GETBOOTSTATUS and WDIOC_SETOPTIONS ioctls
+ *		 <rob@osinvestor.com>	Return proper status instead of
+ *					temperature warning
+ *					Add WDIOC_GETBOOTSTATUS and
+ *					WDIOC_SETOPTIONS ioctls
  *					Fix CONFIG_WATCHDOG_NOWAYOUT
- *	20020530 Joel Becker		Add Matt Domsch's nowayout module option
+ *	20020530 Joel Becker		Add Matt Domsch's nowayout module
+ *					option
  *	20030116 Adam Belay		Updated to the latest pnp code
  *
  */
@@ -39,9 +43,8 @@
 #include <linux/pnp.h>
 #include <linux/fs.h>
 #include <linux/semaphore.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
 
 #define SC1200_MODULE_VER	"build 20020303"
 #define SC1200_MODULE_NAME	"sc1200wdt"
@@ -72,7 +75,7 @@ static char banner[] __initdata = KERN_INFO PFX SC1200_MODULE_VER;
 static int timeout = 1;
 static int io = -1;
 static int io_len = 2;		/* for non plug and play */
-static struct semaphore open_sem;
+static unsigned long open_flag;
 static char expect_close;
 static DEFINE_SPINLOCK(sc1200wdt_lock);	/* io port access serialisation */
 
@@ -81,7 +84,8 @@ static int isapnp = 1;
 static struct pnp_dev *wdt_dev;
 
 module_param(isapnp, int, 0);
-MODULE_PARM_DESC(isapnp, "When set to 0 driver ISA PnP support will be disabled");
+MODULE_PARM_DESC(isapnp,
+	"When set to 0 driver ISA PnP support will be disabled");
 #endif
 
 module_param(io, int, 0);
@@ -91,26 +95,40 @@ MODULE_PARM_DESC(timeout, "range is 0-255 minutes, default is 1");
 
 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) ")");
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
 
 
 
 /* Read from Data Register */
-static inline void sc1200wdt_read_data(unsigned char index, unsigned char *data)
+static inline void __sc1200wdt_read_data(unsigned char index,
+						unsigned char *data)
 {
-	spin_lock(&sc1200wdt_lock);
 	outb_p(index, PMIR);
 	*data = inb(PMDR);
-	spin_unlock(&sc1200wdt_lock);
 }
 
+static void sc1200wdt_read_data(unsigned char index, unsigned char *data)
+{
+	spin_lock(&sc1200wdt_lock);
+	__sc1200wdt_read_data(index, data);
+	spin_unlock(&sc1200wdt_lock);
+}
 
 /* Write to Data Register */
-static inline void sc1200wdt_write_data(unsigned char index, unsigned char data)
+static inline void __sc1200wdt_write_data(unsigned char index,
+						unsigned char data)
 {
-	spin_lock(&sc1200wdt_lock);
 	outb_p(index, PMIR);
 	outb(data, PMDR);
+}
+
+static inline void sc1200wdt_write_data(unsigned char index,
+						unsigned char data)
+{
+	spin_lock(&sc1200wdt_lock);
+	__sc1200wdt_write_data(index, data);
 	spin_unlock(&sc1200wdt_lock);
 }
 
@@ -118,22 +136,23 @@ static inline void sc1200wdt_write_data(unsigned char index, unsigned char data)
 static void sc1200wdt_start(void)
 {
 	unsigned char reg;
+	spin_lock(&sc1200wdt_lock);
 
-	sc1200wdt_read_data(WDCF, &reg);
+	__sc1200wdt_read_data(WDCF, &reg);
 	/* assert WDO when any of the following interrupts are triggered too */
 	reg |= (KBC_IRQ | MSE_IRQ | UART1_IRQ | UART2_IRQ);
-	sc1200wdt_write_data(WDCF, reg);
+	__sc1200wdt_write_data(WDCF, reg);
 	/* set the timeout and get the ball rolling */
-	sc1200wdt_write_data(WDTO, timeout);
-}
+	__sc1200wdt_write_data(WDTO, timeout);
 
+	spin_unlock(&sc1200wdt_lock);
+}
 
 static void sc1200wdt_stop(void)
 {
 	sc1200wdt_write_data(WDTO, 0);
 }
 
-
 /* This returns the status of the WDO signal, inactive high. */
 static inline int sc1200wdt_status(void)
 {
@@ -144,14 +163,13 @@ static inline int sc1200wdt_status(void)
 	 * KEEPALIVEPING which is a bit of a kludge because there's nothing
 	 * else for enabled/disabled status
 	 */
-	return (ret & 0x01) ? 0 : WDIOF_KEEPALIVEPING;	/* bits 1 - 7 are undefined */
+	return (ret & 0x01) ? 0 : WDIOF_KEEPALIVEPING;
 }
 
-
 static int sc1200wdt_open(struct inode *inode, struct file *file)
 {
 	/* allow one at a time */
-	if (down_trylock(&open_sem))
+	if (test_and_set_bit(0, &open_flag))
 		return -EBUSY;
 
 	if (timeout > MAX_TIMEOUT)
@@ -164,71 +182,71 @@ static int sc1200wdt_open(struct inode *inode, struct file *file)
 }
 
 
-static int sc1200wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static long sc1200wdt_ioctl(struct file *file, unsigned int cmd,
+						unsigned long arg)
 {
 	int new_timeout;
 	void __user *argp = (void __user *)arg;
 	int __user *p = argp;
-	static struct watchdog_info ident = {
-		.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE,
+	static const struct watchdog_info ident = {
+		.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT |
+							WDIOF_MAGICCLOSE,
 		.firmware_version = 0,
 		.identity = "PC87307/PC97307",
 	};
 
 	switch (cmd) {
-		default:
-			return -ENOTTY;
-
-		case WDIOC_GETSUPPORT:
-			if (copy_to_user(argp, &ident, sizeof ident))
-				return -EFAULT;
-			return 0;
-
-		case WDIOC_GETSTATUS:
-			return put_user(sc1200wdt_status(), p);
-
-		case WDIOC_GETBOOTSTATUS:
-			return put_user(0, p);
-