fixes ifxmips wdt driver
authorJohn Crispin <john@openwrt.org>
Wed, 26 Dec 2007 19:52:33 +0000 (19:52 +0000)
committerJohn Crispin <john@openwrt.org>
Wed, 26 Dec 2007 19:52:33 +0000 (19:52 +0000)
SVN-Revision: 9931

target/linux/ifxmips/files/drivers/char/watchdog/ifxmips_wdt.c

index 21f5515..d631f4a 100644 (file)
 #include <linux/proc_fs.h>
 #include <linux/ioctl.h>
 #include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/watchdog.h>
+#include <linux/miscdevice.h>
 #include <asm-mips/ifxmips/ifxmips_wdt.h>
 #include <asm-mips/ifxmips/ifxmips.h>
-#include <linux/platform_device.h>
 
 #define DRVNAME                        "ifxmips_wdt"
 
@@ -251,28 +253,32 @@ ifxmips_wdt_register_proc_read (char *buf, char **start, off_t offset, int count
        return len;
 }
 
-static struct file_operations wdt_fops = {
-      .owner = THIS_MODULE,
-      .ioctl = ifxmips_wdt_ioctl,
-      .open = ifxmips_wdt_open,
-      .release = ifxmips_wdt_release,
+static const struct file_operations ifxmips_wdt_fops = {
+       .owner          = THIS_MODULE,
+       .llseek         = no_llseek,
+       .ioctl          = ifxmips_wdt_ioctl,
+       .open           = ifxmips_wdt_open,
+       .release        = ifxmips_wdt_release,
+//     .write          = at91_wdt_write,
+};
+
+static struct miscdevice ifxmips_wdt_miscdev = {
+       .minor          = WATCHDOG_MINOR,
+       .name           = "ifxmips_wdt",
+       .fops           = &ifxmips_wdt_fops,
 };
 
+
 static int
 ifxmips_wdt_probe (struct platform_device *pdev)
 {
-       ifxmips_wdt_major = register_chrdev(0, "wdt", &wdt_fops);
-
-       if (ifxmips_wdt_major < 0)
-       {
-               printk("cannot register watchdog device\n");
-
-               return -EINVAL;
-       }
+       int ret = misc_register(&ifxmips_wdt_miscdev);
+       if (ret)
+               return ret;
 
-       create_proc_read_entry("ifxmips_wdt", 0, NULL, ifxmips_wdt_register_proc_read, NULL);
+       create_proc_read_entry(DRVNAME, 0, NULL, ifxmips_wdt_register_proc_read, NULL);
 
-       printk("ifxmips watchdog loaded\n");
+       printk(KERN_INFO DRVNAME ": ifxmips watchdog loaded\n");
 
        return 0;
 }
@@ -280,7 +286,7 @@ ifxmips_wdt_probe (struct platform_device *pdev)
 static int
 ifxmips_wdt_remove (struct platform_device *pdev)
 {
-       unregister_chrdev(ifxmips_wdt_major, "wdt");
+       misc_deregister(&ifxmips_wdt_miscdev);
        remove_proc_entry(DRVNAME, NULL);
        return 0;
 }
@@ -312,3 +318,8 @@ ifxmips_wdt_cleanup_module (void)
 
 module_init(ifxmips_wdt_init_module);
 module_exit(ifxmips_wdt_cleanup_module);
+
+MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
+MODULE_DESCRIPTION("Watchdog driver for infineon ifxmips family");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);