[WATCHDOG] iTCO_wdt (Intel TCO Timer) driver (3836cc0f) · Commits · e / devices / android_kernel_oneplus_sm8150

drivers/char/watchdog/iTCO_wdt.c

+79 −24

Original line number	Original line	Diff line number	Diff line
	@@ -45,7 +45,7 @@
	/* Module and version information */		/* Module and version information */
	#define DRV_NAME "iTCO_wdt"		#define DRV_NAME "iTCO_wdt"
	#define DRV_VERSION "1.00"		#define DRV_VERSION "1.00"
	#define DRV_RELDATE "21-May-2006"		#define DRV_RELDATE "18-Jun-2006"
	#define PFX DRV_NAME ": "		#define PFX DRV_NAME ": "

	/* Includes */		/* Includes */
	@@ -61,6 +61,7 @@
	#include <linux/reboot.h> /* For reboot_notifier stuff */		#include <linux/reboot.h> /* For reboot_notifier stuff */
	#include <linux/init.h> /* For __init/__exit/... */		#include <linux/init.h> /* For __init/__exit/... */
	#include <linux/fs.h> /* For file operations */		#include <linux/fs.h> /* For file operations */
			#include <linux/platform_device.h> /* For platform_driver framework */
	#include <linux/pci.h> /* For pci functions */		#include <linux/pci.h> /* For pci functions */
	#include <linux/ioport.h> /* For io-port access */		#include <linux/ioport.h> /* For io-port access */
	#include <linux/spinlock.h> /* For spin_lock/spin_unlock/... */		#include <linux/spinlock.h> /* For spin_lock/spin_unlock/... */
	@@ -166,6 +167,8 @@ static struct { /* this is private data for the iTCO_wdt device */
	struct pci_dev pdev; / the PCI-device */		struct pci_dev pdev; / the PCI-device */
	} iTCO_wdt_private;		} iTCO_wdt_private;

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

	/* module parameters */		/* module parameters */
	#define WATCHDOG_HEARTBEAT 30 /* 30 sec default heartbeat */		#define WATCHDOG_HEARTBEAT 30 /* 30 sec default heartbeat */
	static int heartbeat = WATCHDOG_HEARTBEAT; /* in seconds */		static int heartbeat = WATCHDOG_HEARTBEAT; /* in seconds */
	@@ -538,7 +541,7 @@ static struct notifier_block iTCO_wdt_notifier = {
	* Init & exit routines		* Init & exit routines
	*/		*/

	static int __init iTCO_wdt_init(struct pci_dev pdev, const struct pci_device_id ent)		static int iTCO_wdt_init(struct pci_dev pdev, const struct pci_device_id ent, struct platform_device *dev)
	{		{
	int ret;		int ret;
	u32 base_address;		u32 base_address;
	@@ -649,7 +652,7 @@ static int __init iTCO_wdt_init(struct pci_dev *pdev, const struct pci_device_id
	return ret;		return ret;
	}		}

	static void __exit iTCO_wdt_cleanup(void)		static void iTCO_wdt_cleanup(void)
	{		{
	/* Stop the timer before we leave */		/* Stop the timer before we leave */
	if (!nowayout)		if (!nowayout)
	@@ -663,7 +666,7 @@ static void __exit iTCO_wdt_cleanup(void)
	iounmap(iTCO_wdt_private.gcs);		iounmap(iTCO_wdt_private.gcs);
	}		}

	static int __init iTCO_wdt_init_module(void)		static int iTCO_wdt_probe(struct platform_device *dev)
	{		{
	int found = 0;		int found = 0;
	struct pci_dev *pdev = NULL;		struct pci_dev *pdev = NULL;
	@@ -674,7 +677,7 @@ static int __init iTCO_wdt_init_module(void)
	for_each_pci_dev(pdev) {		for_each_pci_dev(pdev) {
	ent = pci_match_id(iTCO_wdt_pci_tbl, pdev);		ent = pci_match_id(iTCO_wdt_pci_tbl, pdev);
	if (ent) {		if (ent) {
	if (!(iTCO_wdt_init(pdev, ent))) {		if (!(iTCO_wdt_init(pdev, ent, dev))) {
	found++;		found++;
	break;		break;
	}		}
	@@ -689,11 +692,62 @@ static int __init iTCO_wdt_init_module(void)
	return 0;		return 0;
	}		}

	static void __exit iTCO_wdt_cleanup_module(void)		static int iTCO_wdt_remove(struct platform_device *dev)
	{		{
	if (iTCO_wdt_private.ACPIBASE)		if (iTCO_wdt_private.ACPIBASE)
	iTCO_wdt_cleanup();		iTCO_wdt_cleanup();

			return 0;
			}

			static void iTCO_wdt_shutdown(struct platform_device *dev)
			{
			iTCO_wdt_stop();
			}

			#define iTCO_wdt_suspend NULL
			#define iTCO_wdt_resume NULL

			static struct platform_driver iTCO_wdt_driver = {
			.probe = iTCO_wdt_probe,
			.remove = iTCO_wdt_remove,
			.shutdown = iTCO_wdt_shutdown,
			.suspend = iTCO_wdt_suspend,
			.resume = iTCO_wdt_resume,
			.driver = {
			.owner = THIS_MODULE,
			.name = DRV_NAME,
			},
			};

			static int __init iTCO_wdt_init_module(void)
			{
			int err;

			printk(KERN_INFO PFX "Intel TCO WatchDog Timer Driver v%s (%s)\n",
			DRV_VERSION, DRV_RELDATE);

			err = platform_driver_register(&iTCO_wdt_driver);
			if (err)
			return err;

			iTCO_wdt_platform_device = platform_device_register_simple(DRV_NAME, -1, NULL, 0);
			if (IS_ERR(iTCO_wdt_platform_device)) {
			err = PTR_ERR(iTCO_wdt_platform_device);
			goto unreg_platform_driver;
			}

			return 0;

			unreg_platform_driver:
			platform_driver_unregister(&iTCO_wdt_driver);
			return err;
			}

			static void __exit iTCO_wdt_cleanup_module(void)
			{
			platform_device_unregister(iTCO_wdt_platform_device);
			platform_driver_unregister(&iTCO_wdt_driver);
	printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");		printk(KERN_INFO PFX "Watchdog Module Unloaded.\n");
	}		}

	@@ -702,5 +756,6 @@ module_exit(iTCO_wdt_cleanup_module);

	MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>");		MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>");
	MODULE_DESCRIPTION("Intel TCO WatchDog Timer Driver");		MODULE_DESCRIPTION("Intel TCO WatchDog Timer Driver");
			MODULE_VERSION(DRV_VERSION);
	MODULE_LICENSE("GPL");		MODULE_LICENSE("GPL");
	MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);		MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);