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Commit c2bd11c7 authored by Wim Van Sebroeck's avatar Wim Van Sebroeck
Browse files

[WATCHDOG] advantechwdt.c - convert to platform_device 



Convert the advantechwdt watchdog into a platform_device

Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent 0349a363

drivers/char/watchdog/advantechwdt.c

+49 −6
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ 
#include <linux/ioport.h>

#include <linux/notifier.h>

#include <linux/reboot.h>

#include <linux/platform_device.h>

#include <linux/init.h>



#include <asm/io.h>
@@ -48,6 +49,7 @@ 
#define WATCHDOG_NAME "Advantech WDT"

#define WATCHDOG_TIMEOUT 60		/* 60 sec default timeout */



static struct platform_device *advwdt_platform_device;	/* the watchdog platform device */

static unsigned long advwdt_is_open;

static char adv_expect_close;
@@ -269,13 +271,11 @@ static struct notifier_block advwdt_notifier = { 
 *	Init & exit routines

 */



static int __init

advwdt_init(void)

static int __devinit

advwdt_probe(struct platform_device *dev)

{

	int ret;



	printk(KERN_INFO "WDT driver for Advantech single board computer initialising.\n");



	if (wdt_stop != wdt_start) {

		if (!request_region(wdt_stop, 1, WATCHDOG_NAME)) {

			printk (KERN_ERR PFX "I/O address 0x%04x already in use\n",
@@ -328,14 +328,57 @@ advwdt_init(void) 
	goto out;

}



static void __exit

advwdt_exit(void)

static int __devexit

advwdt_remove(struct platform_device *dev)

{

	misc_deregister(&advwdt_miscdev);

	unregister_reboot_notifier(&advwdt_notifier);

	release_region(wdt_start,1);

	if(wdt_stop != wdt_start)

		release_region(wdt_stop,1);



	return 0;

}



static struct platform_driver advwdt_driver = {

	.probe		= advwdt_probe,

	.remove		= __devexit_p(advwdt_remove),

	.driver		= {

		.owner	= THIS_MODULE,

		.name	= DRV_NAME,

	},

};



static int __init

advwdt_init(void)

{

	int err;



	printk(KERN_INFO "WDT driver for Advantech single board computer initialising.\n");



	err = platform_driver_register(&advwdt_driver);

	if (err)

		return err;



	advwdt_platform_device = platform_device_register_simple(DRV_NAME, -1, NULL, 0);

	if (IS_ERR(advwdt_platform_device)) {

		err = PTR_ERR(advwdt_platform_device);

		goto unreg_platform_driver;

	}



	return 0;



unreg_platform_driver:

	platform_driver_unregister(&advwdt_driver);

	return err;

}



static void __exit

advwdt_exit(void)

{

	platform_device_unregister(advwdt_platform_device);

	platform_driver_unregister(&advwdt_driver);

	printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");

}



module_init(advwdt_init);