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path: root/drivers/watchdog/bcm63xx_wdt.c
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Diffstat (limited to 'drivers/watchdog/bcm63xx_wdt.c')
-rw-r--r--drivers/watchdog/bcm63xx_wdt.c42
1 files changed, 12 insertions, 30 deletions
diff --git a/drivers/watchdog/bcm63xx_wdt.c b/drivers/watchdog/bcm63xx_wdt.c
index a1debc89356b..3c5045a206dd 100644
--- a/drivers/watchdog/bcm63xx_wdt.c
+++ b/drivers/watchdog/bcm63xx_wdt.c
@@ -18,7 +18,6 @@
18#include <linux/miscdevice.h> 18#include <linux/miscdevice.h>
19#include <linux/module.h> 19#include <linux/module.h>
20#include <linux/moduleparam.h> 20#include <linux/moduleparam.h>
21#include <linux/reboot.h>
22#include <linux/types.h> 21#include <linux/types.h>
23#include <linux/uaccess.h> 22#include <linux/uaccess.h>
24#include <linux/watchdog.h> 23#include <linux/watchdog.h>
@@ -220,14 +219,6 @@ static long bcm63xx_wdt_ioctl(struct file *file, unsigned int cmd,
220 } 219 }
221} 220}
222 221
223static int bcm63xx_wdt_notify_sys(struct notifier_block *this,
224 unsigned long code, void *unused)
225{
226 if (code == SYS_DOWN || code == SYS_HALT)
227 bcm63xx_wdt_pause();
228 return NOTIFY_DONE;
229}
230
231static const struct file_operations bcm63xx_wdt_fops = { 222static const struct file_operations bcm63xx_wdt_fops = {
232 .owner = THIS_MODULE, 223 .owner = THIS_MODULE,
233 .llseek = no_llseek, 224 .llseek = no_llseek,
@@ -243,12 +234,8 @@ static struct miscdevice bcm63xx_wdt_miscdev = {
243 .fops = &bcm63xx_wdt_fops, 234 .fops = &bcm63xx_wdt_fops,
244}; 235};
245 236
246static struct notifier_block bcm63xx_wdt_notifier = {
247 .notifier_call = bcm63xx_wdt_notify_sys,
248};
249 237
250 238static int __devinit bcm63xx_wdt_probe(struct platform_device *pdev)
251static int bcm63xx_wdt_probe(struct platform_device *pdev)
252{ 239{
253 int ret; 240 int ret;
254 struct resource *r; 241 struct resource *r;
@@ -280,16 +267,10 @@ static int bcm63xx_wdt_probe(struct platform_device *pdev)
280 wdt_time); 267 wdt_time);
281 } 268 }
282 269
283 ret = register_reboot_notifier(&bcm63xx_wdt_notifier);
284 if (ret) {
285 dev_err(&pdev->dev, "failed to register reboot_notifier\n");
286 goto unregister_timer;
287 }
288
289 ret = misc_register(&bcm63xx_wdt_miscdev); 270 ret = misc_register(&bcm63xx_wdt_miscdev);
290 if (ret < 0) { 271 if (ret < 0) {
291 dev_err(&pdev->dev, "failed to register watchdog device\n"); 272 dev_err(&pdev->dev, "failed to register watchdog device\n");
292 goto unregister_reboot_notifier; 273 goto unregister_timer;
293 } 274 }
294 275
295 dev_info(&pdev->dev, " started, timer margin: %d sec\n", 276 dev_info(&pdev->dev, " started, timer margin: %d sec\n",
@@ -297,8 +278,6 @@ static int bcm63xx_wdt_probe(struct platform_device *pdev)
297 278
298 return 0; 279 return 0;
299 280
300unregister_reboot_notifier:
301 unregister_reboot_notifier(&bcm63xx_wdt_notifier);
302unregister_timer: 281unregister_timer:
303 bcm63xx_timer_unregister(TIMER_WDT_ID); 282 bcm63xx_timer_unregister(TIMER_WDT_ID);
304unmap: 283unmap:
@@ -306,25 +285,28 @@ unmap:
306 return ret; 285 return ret;
307} 286}
308 287
309static int bcm63xx_wdt_remove(struct platform_device *pdev) 288static int __devexit bcm63xx_wdt_remove(struct platform_device *pdev)
310{ 289{
311 if (!nowayout) 290 if (!nowayout)
312 bcm63xx_wdt_pause(); 291 bcm63xx_wdt_pause();
313 292
314 misc_deregister(&bcm63xx_wdt_miscdev); 293 misc_deregister(&bcm63xx_wdt_miscdev);
315
316 iounmap(bcm63xx_wdt_device.regs);
317
318 unregister_reboot_notifier(&bcm63xx_wdt_notifier);
319 bcm63xx_timer_unregister(TIMER_WDT_ID); 294 bcm63xx_timer_unregister(TIMER_WDT_ID);
320 295 iounmap(bcm63xx_wdt_device.regs);
321 return 0; 296 return 0;
322} 297}
323 298
299static void bcm63xx_wdt_shutdown(struct platform_device *pdev)
300{
301 bcm63xx_wdt_pause();
302}
303
324static struct platform_driver bcm63xx_wdt = { 304static struct platform_driver bcm63xx_wdt = {
325 .probe = bcm63xx_wdt_probe, 305 .probe = bcm63xx_wdt_probe,
326 .remove = bcm63xx_wdt_remove, 306 .remove = __devexit_p(bcm63xx_wdt_remove),
307 .shutdown = bcm63xx_wdt_shutdown,
327 .driver = { 308 .driver = {
309 .owner = THIS_MODULE,
328 .name = "bcm63xx-wdt", 310 .name = "bcm63xx-wdt",
329 } 311 }
330}; 312};