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authorWim Van Sebroeck <wim@iguana.be>2007-01-27 22:39:46 +0100
committerWim Van Sebroeck <wim@iguana.be>2007-01-27 22:39:46 +0100
commit745ac1ea6e06125cc1326adbec34d756b25678c6 (patch)
treeae4f65de9ca556f983752a42d3322bdf30741e0e /drivers/char
parente42162a46d948769c8b45d25ee81827bc7dac435 (diff)
[WATCHDOG] ib700wdt.c - convert to platform_device
Convert the ib700wdt watchdog into a platform_device Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/watchdog/ib700wdt.c53
1 files changed, 47 insertions, 6 deletions
diff --git a/drivers/char/watchdog/ib700wdt.c b/drivers/char/watchdog/ib700wdt.c
index be61e475589..b74e15159c0 100644
--- a/drivers/char/watchdog/ib700wdt.c
+++ b/drivers/char/watchdog/ib700wdt.c
@@ -42,16 +42,20 @@
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/system.h>
+static struct platform_device *ibwdt_platform_device;
static unsigned long ibwdt_is_open;
static spinlock_t ibwdt_lock;
static char expect_close;
-#define PFX "ib700wdt: "
+/* Module information */
+#define DRV_NAME "ib700wdt"
+#define PFX DRV_NAME ": "
/*
*
@@ -326,12 +330,10 @@ static struct notifier_block ibwdt_notifier = {
* Init & exit routines
*/
-static int __init ibwdt_init(void)
+static int __devinit ibwdt_probe(struct platform_device *dev)
{
int res;
- printk(KERN_INFO PFX "WDT driver for IB700 single board computer initialising.\n");
-
spin_lock_init(&ibwdt_lock);
#if WDT_START != WDT_STOP
@@ -373,8 +375,7 @@ out_nostopreg:
return res;
}
-static void __exit
-ibwdt_exit(void)
+static int __devexit ibwdt_remove(struct platform_device *dev)
{
misc_deregister(&ibwdt_miscdev);
unregister_reboot_notifier(&ibwdt_notifier);
@@ -382,6 +383,46 @@ ibwdt_exit(void)
#if WDT_START != WDT_STOP
release_region(WDT_STOP,1);
#endif
+ return 0;
+}
+
+static struct platform_driver ibwdt_driver = {
+ .probe = ibwdt_probe,
+ .remove = __devexit_p(ibwdt_remove),
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = DRV_NAME,
+ },
+};
+
+static int __init ibwdt_init(void)
+{
+ int err;
+
+ printk(KERN_INFO PFX "WDT driver for IB700 single board computer initialising.\n");
+
+ err = platform_driver_register(&ibwdt_driver);
+ if (err)
+ return err;
+
+ ibwdt_platform_device = platform_device_register_simple(DRV_NAME, -1, NULL, 0);
+ if (IS_ERR(ibwdt_platform_device)) {
+ err = PTR_ERR(ibwdt_platform_device);
+ goto unreg_platform_driver;
+ }
+
+ return 0;
+
+unreg_platform_driver:
+ platform_driver_unregister(&ibwdt_driver);
+ return err;
+}
+
+static void __exit ibwdt_exit(void)
+{
+ platform_device_unregister(ibwdt_platform_device);
+ platform_driver_unregister(&ibwdt_driver);
+ printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
}
module_init(ibwdt_init);