[WATCHDOG] acquirewdt.c - convert to platform_device part 2
Convert the reboot_notifier into the platform_device's shutdown method Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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ad5fe32318
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98c08e98f8
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@ -62,8 +62,6 @@
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#include <linux/watchdog.h> /* For the watchdog specific items */
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#include <linux/watchdog.h> /* For the watchdog specific items */
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#include <linux/fs.h> /* For file operations */
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#include <linux/fs.h> /* For file operations */
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#include <linux/ioport.h> /* For io-port access */
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#include <linux/ioport.h> /* For io-port access */
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#include <linux/notifier.h> /* For reboot notifier */
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#include <linux/reboot.h> /* For reboot notifier */
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#include <linux/platform_device.h> /* For platform_driver framework */
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#include <linux/platform_device.h> /* For platform_driver framework */
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#include <linux/init.h> /* For __init/__exit/... */
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#include <linux/init.h> /* For __init/__exit/... */
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@ -221,20 +219,6 @@ static int acq_close(struct inode *inode, struct file *file)
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return 0;
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return 0;
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}
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}
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/*
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* Notifier for system down
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*/
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static int acq_notify_sys(struct notifier_block *this, unsigned long code,
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void *unused)
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{
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if(code==SYS_DOWN || code==SYS_HALT) {
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/* Turn the WDT off */
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acq_stop();
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}
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return NOTIFY_DONE;
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}
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/*
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/*
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* Kernel Interfaces
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* Kernel Interfaces
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*/
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*/
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@ -254,15 +238,6 @@ static struct miscdevice acq_miscdev = {
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.fops = &acq_fops,
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.fops = &acq_fops,
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};
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};
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/*
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* The WDT card needs to learn about soft shutdowns in order to
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* turn the timebomb registers off.
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*/
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static struct notifier_block acq_notifier = {
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.notifier_call = acq_notify_sys,
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};
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/*
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/*
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* Init & exit routines
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* Init & exit routines
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*/
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*/
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@ -287,18 +262,11 @@ static int __devinit acq_probe(struct platform_device *dev)
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goto unreg_stop;
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goto unreg_stop;
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}
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}
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ret = register_reboot_notifier(&acq_notifier);
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if (ret != 0) {
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printk (KERN_ERR PFX "cannot register reboot notifier (err=%d)\n",
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ret);
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goto unreg_regions;
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}
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ret = misc_register(&acq_miscdev);
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ret = misc_register(&acq_miscdev);
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if (ret != 0) {
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if (ret != 0) {
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printk (KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
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printk (KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
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WATCHDOG_MINOR, ret);
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WATCHDOG_MINOR, ret);
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goto unreg_reboot;
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goto unreg_regions;
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}
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}
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printk (KERN_INFO PFX "initialized. (nowayout=%d)\n",
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printk (KERN_INFO PFX "initialized. (nowayout=%d)\n",
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@ -306,8 +274,6 @@ static int __devinit acq_probe(struct platform_device *dev)
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return 0;
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return 0;
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unreg_reboot:
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unregister_reboot_notifier(&acq_notifier);
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unreg_regions:
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unreg_regions:
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release_region(wdt_start, 1);
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release_region(wdt_start, 1);
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unreg_stop:
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unreg_stop:
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@ -320,7 +286,6 @@ out:
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static int __devexit acq_remove(struct platform_device *dev)
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static int __devexit acq_remove(struct platform_device *dev)
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{
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{
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misc_deregister(&acq_miscdev);
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misc_deregister(&acq_miscdev);
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unregister_reboot_notifier(&acq_notifier);
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release_region(wdt_start,1);
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release_region(wdt_start,1);
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if(wdt_stop != wdt_start)
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if(wdt_stop != wdt_start)
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release_region(wdt_stop,1);
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release_region(wdt_stop,1);
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@ -328,9 +293,16 @@ static int __devexit acq_remove(struct platform_device *dev)
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return 0;
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return 0;
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}
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}
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static void acq_shutdown(struct platform_device *dev)
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{
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/* Turn the WDT off if we have a soft shutdown */
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acq_stop();
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}
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static struct platform_driver acquirewdt_driver = {
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static struct platform_driver acquirewdt_driver = {
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.probe = acq_probe,
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.probe = acq_probe,
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.remove = __devexit_p(acq_remove),
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.remove = __devexit_p(acq_remove),
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.shutdown = acq_shutdown,
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.driver = {
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.driver = {
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.owner = THIS_MODULE,
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.owner = THIS_MODULE,
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.name = DRV_NAME,
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.name = DRV_NAME,
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