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Commit ad5fe323 authored by Wim Van Sebroeck's avatar Wim Van Sebroeck
Browse files

[WATCHDOG] acquirewdt.c - convert to platform_device 



Convert the acquirewdt watchdog into a platform_device

Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent 76c11f04

drivers/char/watchdog/acquirewdt.c

+45 −4
Original line number Original line Diff line number Diff line
@@ -64,6 +64,7 @@ 
#include <linux/ioport.h>		/* For io-port access */

#include <linux/ioport.h>		/* For io-port access */

#include <linux/notifier.h>		/* For reboot notifier */

#include <linux/notifier.h>		/* For reboot notifier */

#include <linux/reboot.h>		/* For reboot notifier */

#include <linux/reboot.h>		/* For reboot notifier */

#include <linux/platform_device.h>	/* For platform_driver framework */

#include <linux/init.h>			/* For __init/__exit/... */

#include <linux/init.h>			/* For __init/__exit/... */





#include <asm/uaccess.h>		/* For copy_to_user/put_user/... */

#include <asm/uaccess.h>		/* For copy_to_user/put_user/... */
@@ -76,6 +77,7 @@ 
#define WATCHDOG_HEARTBEAT 0	/* There is no way to see what the correct time-out period is */

#define WATCHDOG_HEARTBEAT 0	/* There is no way to see what the correct time-out period is */





/* internal variables */

/* internal variables */

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

static unsigned long acq_is_open;

static unsigned long acq_is_open;

static char expect_close;

static char expect_close;
@@ -265,12 +267,10 @@ static struct notifier_block acq_notifier = { 
 *	Init & exit routines

 *	Init & exit routines

 */

 */





static int __init acq_init(void)

static int __devinit acq_probe(struct platform_device *dev)

{

{

	int ret;

	int ret;





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



	if (wdt_stop != wdt_start) {

	if (wdt_stop != wdt_start) {

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

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

			printk (KERN_ERR PFX "I/O address 0x%04x already in use\n",

			printk (KERN_ERR PFX "I/O address 0x%04x already in use\n",
@@ -317,13 +317,54 @@ static int __init acq_init(void) 
	return ret;

	return ret;

}

}





static void __exit acq_exit(void)

static int __devexit acq_remove(struct platform_device *dev)

{

{

	misc_deregister(&acq_miscdev);

	misc_deregister(&acq_miscdev);

	unregister_reboot_notifier(&acq_notifier);

	unregister_reboot_notifier(&acq_notifier);

	release_region(wdt_start,1);

	release_region(wdt_start,1);

	if(wdt_stop != wdt_start)

	if(wdt_stop != wdt_start)

		release_region(wdt_stop,1);

		release_region(wdt_stop,1);



	return 0;

}



static struct platform_driver acquirewdt_driver = {

	.probe		= acq_probe,

	.remove		= __devexit_p(acq_remove),

	.driver		= {

		.owner	= THIS_MODULE,

		.name	= DRV_NAME,

	},

};



static int __init acq_init(void)

{

	int err;



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



	err = platform_driver_register(&acquirewdt_driver);

	if (err)

		return err;



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

	if (IS_ERR(acq_platform_device)) {

		err = PTR_ERR(acq_platform_device);

		goto unreg_platform_driver;

	}



	return 0;



unreg_platform_driver:

	platform_driver_unregister(&acquirewdt_driver);

	return err;

}



static void __exit acq_exit(void)

{

	platform_device_unregister(acq_platform_device);

	platform_driver_unregister(&acquirewdt_driver);

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

}

}





module_init(acq_init);

module_init(acq_init);