diff options
Diffstat (limited to 'drivers/watchdog/sa1100_wdt.c')
-rw-r--r-- | drivers/watchdog/sa1100_wdt.c | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/drivers/watchdog/sa1100_wdt.c b/drivers/watchdog/sa1100_wdt.c index 34a2b3b81800..869d538c02f9 100644 --- a/drivers/watchdog/sa1100_wdt.c +++ b/drivers/watchdog/sa1100_wdt.c | |||
@@ -26,13 +26,13 @@ | |||
26 | #include <linux/watchdog.h> | 26 | #include <linux/watchdog.h> |
27 | #include <linux/init.h> | 27 | #include <linux/init.h> |
28 | #include <linux/bitops.h> | 28 | #include <linux/bitops.h> |
29 | #include <linux/uaccess.h> | ||
29 | 30 | ||
30 | #ifdef CONFIG_ARCH_PXA | 31 | #ifdef CONFIG_ARCH_PXA |
31 | #include <asm/arch/pxa-regs.h> | 32 | #include <asm/arch/pxa-regs.h> |
32 | #endif | 33 | #endif |
33 | 34 | ||
34 | #include <asm/hardware.h> | 35 | #include <asm/hardware.h> |
35 | #include <asm/uaccess.h> | ||
36 | 36 | ||
37 | #define OSCR_FREQ CLOCK_TICK_RATE | 37 | #define OSCR_FREQ CLOCK_TICK_RATE |
38 | 38 | ||
@@ -45,7 +45,7 @@ static int boot_status; | |||
45 | */ | 45 | */ |
46 | static int sa1100dog_open(struct inode *inode, struct file *file) | 46 | static int sa1100dog_open(struct inode *inode, struct file *file) |
47 | { | 47 | { |
48 | if (test_and_set_bit(1,&sa1100wdt_users)) | 48 | if (test_and_set_bit(1, &sa1100wdt_users)) |
49 | return -EBUSY; | 49 | return -EBUSY; |
50 | 50 | ||
51 | /* Activate SA1100 Watchdog timer */ | 51 | /* Activate SA1100 Watchdog timer */ |
@@ -66,28 +66,27 @@ static int sa1100dog_open(struct inode *inode, struct file *file) | |||
66 | static int sa1100dog_release(struct inode *inode, struct file *file) | 66 | static int sa1100dog_release(struct inode *inode, struct file *file) |
67 | { | 67 | { |
68 | printk(KERN_CRIT "WATCHDOG: Device closed - timer will not stop\n"); | 68 | printk(KERN_CRIT "WATCHDOG: Device closed - timer will not stop\n"); |
69 | |||
70 | clear_bit(1, &sa1100wdt_users); | 69 | clear_bit(1, &sa1100wdt_users); |
71 | |||
72 | return 0; | 70 | return 0; |
73 | } | 71 | } |
74 | 72 | ||
75 | static ssize_t sa1100dog_write(struct file *file, const char __user *data, size_t len, loff_t *ppos) | 73 | static ssize_t sa1100dog_write(struct file *file, const char __user *data, |
74 | size_t len, loff_t *ppos) | ||
76 | { | 75 | { |
77 | if (len) | 76 | if (len) |
78 | /* Refresh OSMR3 timer. */ | 77 | /* Refresh OSMR3 timer. */ |
79 | OSMR3 = OSCR + pre_margin; | 78 | OSMR3 = OSCR + pre_margin; |
80 | |||
81 | return len; | 79 | return len; |
82 | } | 80 | } |
83 | 81 | ||
84 | static struct watchdog_info ident = { | 82 | static const struct watchdog_info ident = { |
85 | .options = WDIOF_CARDRESET | WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING, | 83 | .options = WDIOF_CARDRESET | WDIOF_SETTIMEOUT |
84 | | WDIOF_KEEPALIVEPING, | ||
86 | .identity = "SA1100/PXA255 Watchdog", | 85 | .identity = "SA1100/PXA255 Watchdog", |
87 | }; | 86 | }; |
88 | 87 | ||
89 | static int sa1100dog_ioctl(struct inode *inode, struct file *file, | 88 | static long sa1100dog_ioctl(struct file *file, unsigned int cmd, |
90 | unsigned int cmd, unsigned long arg) | 89 | unsigned long arg) |
91 | { | 90 | { |
92 | int ret = -ENOTTY; | 91 | int ret = -ENOTTY; |
93 | int time; | 92 | int time; |
@@ -134,18 +133,16 @@ static int sa1100dog_ioctl(struct inode *inode, struct file *file, | |||
134 | return ret; | 133 | return ret; |
135 | } | 134 | } |
136 | 135 | ||
137 | static const struct file_operations sa1100dog_fops = | 136 | static const struct file_operations sa1100dog_fops = { |
138 | { | ||
139 | .owner = THIS_MODULE, | 137 | .owner = THIS_MODULE, |
140 | .llseek = no_llseek, | 138 | .llseek = no_llseek, |
141 | .write = sa1100dog_write, | 139 | .write = sa1100dog_write, |
142 | .ioctl = sa1100dog_ioctl, | 140 | .unlocked_ioctl = sa1100dog_ioctl, |
143 | .open = sa1100dog_open, | 141 | .open = sa1100dog_open, |
144 | .release = sa1100dog_release, | 142 | .release = sa1100dog_release, |
145 | }; | 143 | }; |
146 | 144 | ||
147 | static struct miscdevice sa1100dog_miscdev = | 145 | static struct miscdevice sa1100dog_miscdev = { |
148 | { | ||
149 | .minor = WATCHDOG_MINOR, | 146 | .minor = WATCHDOG_MINOR, |
150 | .name = "watchdog", | 147 | .name = "watchdog", |
151 | .fops = &sa1100dog_fops, | 148 | .fops = &sa1100dog_fops, |
@@ -167,8 +164,9 @@ static int __init sa1100dog_init(void) | |||
167 | 164 | ||
168 | ret = misc_register(&sa1100dog_miscdev); | 165 | ret = misc_register(&sa1100dog_miscdev); |
169 | if (ret == 0) | 166 | if (ret == 0) |
170 | printk("SA1100/PXA2xx Watchdog Timer: timer margin %d sec\n", | 167 | printk(KERN_INFO |
171 | margin); | 168 | "SA1100/PXA2xx Watchdog Timer: timer margin %d sec\n", |
169 | margin); | ||
172 | return ret; | 170 | return ret; |
173 | } | 171 | } |
174 | 172 | ||