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path: root/drivers/watchdog/mv64x60_wdt.c
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Diffstat (limited to 'drivers/watchdog/mv64x60_wdt.c')
-rw-r--r--drivers/watchdog/mv64x60_wdt.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/watchdog/mv64x60_wdt.c b/drivers/watchdog/mv64x60_wdt.c
index b59ca327396..acf589dc057 100644
--- a/drivers/watchdog/mv64x60_wdt.c
+++ b/drivers/watchdog/mv64x60_wdt.c
@@ -8,7 +8,7 @@
8 * and services the watchdog. 8 * and services the watchdog.
9 * 9 *
10 * Derived from mpc8xx_wdt.c, with the following copyright. 10 * Derived from mpc8xx_wdt.c, with the following copyright.
11 * 11 *
12 * 2002 (c) Florian Schirmer <jolt@tuxbox.org> This file is licensed under 12 * 2002 (c) Florian Schirmer <jolt@tuxbox.org> This file is licensed under
13 * the terms of the GNU General Public License version 2. This program 13 * the terms of the GNU General Public License version 2. This program
14 * is licensed "as is" without any warranty of any kind, whether express 14 * is licensed "as is" without any warranty of any kind, whether express
@@ -22,10 +22,9 @@
22#include <linux/module.h> 22#include <linux/module.h>
23#include <linux/watchdog.h> 23#include <linux/watchdog.h>
24#include <linux/platform_device.h> 24#include <linux/platform_device.h>
25
26#include <linux/mv643xx.h> 25#include <linux/mv643xx.h>
27#include <asm/uaccess.h> 26#include <linux/uaccess.h>
28#include <asm/io.h> 27#include <linux/io.h>
29 28
30#define MV64x60_WDT_WDC_OFFSET 0 29#define MV64x60_WDT_WDC_OFFSET 0
31 30
@@ -61,7 +60,9 @@ static DEFINE_SPINLOCK(mv64x60_wdt_spinlock);
61 60
62static int nowayout = WATCHDOG_NOWAYOUT; 61static int nowayout = WATCHDOG_NOWAYOUT;
63module_param(nowayout, int, 0); 62module_param(nowayout, int, 0);
64MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); 63MODULE_PARM_DESC(nowayout,
64 "Watchdog cannot be stopped once started (default="
65 __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
65 66
66static int mv64x60_wdt_toggle_wdc(int enabled_predicate, int field_shift) 67static int mv64x60_wdt_toggle_wdc(int enabled_predicate, int field_shift)
67{ 68{
@@ -150,7 +151,7 @@ static int mv64x60_wdt_release(struct inode *inode, struct file *file)
150} 151}
151 152
152static ssize_t mv64x60_wdt_write(struct file *file, const char __user *data, 153static ssize_t mv64x60_wdt_write(struct file *file, const char __user *data,
153 size_t len, loff_t * ppos) 154 size_t len, loff_t *ppos)
154{ 155{
155 if (len) { 156 if (len) {
156 if (!nowayout) { 157 if (!nowayout) {
@@ -160,7 +161,7 @@ static ssize_t mv64x60_wdt_write(struct file *file, const char __user *data,
160 161
161 for (i = 0; i != len; i++) { 162 for (i = 0; i != len; i++) {
162 char c; 163 char c;
163 if(get_user(c, data + i)) 164 if (get_user(c, data + i))
164 return -EFAULT; 165 return -EFAULT;
165 if (c == 'V') 166 if (c == 'V')
166 expect_close = 42; 167 expect_close = 42;
@@ -172,8 +173,8 @@ static ssize_t mv64x60_wdt_write(struct file *file, const char __user *data,
172 return len; 173 return len;
173} 174}
174 175
175static int mv64x60_wdt_ioctl(struct inode *inode, struct file *file, 176static long mv64x60_wdt_ioctl(struct file *file,
176 unsigned int cmd, unsigned long arg) 177 unsigned int cmd, unsigned long arg)
177{ 178{
178 int timeout; 179 int timeout;
179 int options; 180 int options;
@@ -240,7 +241,7 @@ static const struct file_operations mv64x60_wdt_fops = {
240 .owner = THIS_MODULE, 241 .owner = THIS_MODULE,
241 .llseek = no_llseek, 242 .llseek = no_llseek,
242 .write = mv64x60_wdt_write, 243 .write = mv64x60_wdt_write,
243 .ioctl = mv64x60_wdt_ioctl, 244 .unlocked_ioctl = mv64x60_wdt_ioctl,
244 .open = mv64x60_wdt_open, 245 .open = mv64x60_wdt_open,
245 .release = mv64x60_wdt_release, 246 .release = mv64x60_wdt_release,
246}; 247};