Commit a913d94e authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'linux-watchdog-6.10-rc1' of git://www.linux-watchdog.org/linux-watchdog 

Pull watchdog updates from Wim Van Sebroeck:

 - Add Lenovo SE10 platform Watchdog Driver

 - Other small fixes and improvements

* tag 'linux-watchdog-6.10-rc1' of git://www.linux-watchdog.org/linux-watchdog:
  watchdog: LENOVO_SE10_WDT should depend on X86 && DMI
  watchdog: sa1100: Fix PTR_ERR_OR_ZERO() vs NULL check in sa1100dog_probe()
  watchdog: rti_wdt: Set min_hw_heartbeat_ms to accommodate a safety margin
  watchdog: add HAS_IOPORT dependencies
  watchdog/wdt-main: Use cpumask_of() to avoid cpumask var on stack
  watchdog: bd9576: Drop "always-running" property
  watchdog: mtx-1: drop driver owner assignment
  watchdog: cpu5wdt.c: Fix use-after-free bug caused by cpu5wdt_trigger
  watchdog: lenovo_se10_wdt: Watchdog driver for Lenovo SE10 platform
parents 0a07e090 c45b8cfc

drivers/watchdog/Kconfig

+41 −28
Original line number Diff line number Diff line
@@ -254,6 +254,17 @@ config GPIO_WATCHDOG_ARCH_INITCALL 
	  arch_initcall.

	  If in doubt, say N.



config LENOVO_SE10_WDT

	tristate "Lenovo SE10 Watchdog"

	depends on (X86 && DMI) || COMPILE_TEST

	select WATCHDOG_CORE

	help

	  If you say yes here you get support for the watchdog

	  functionality for the Lenovo SE10 platform.



	  This driver can also be built as a module. If so, the module

	  will be called lenovo-se10-wdt.



config MENF21BMC_WATCHDOG

	tristate "MEN 14F021P00 BMC Watchdog"

	depends on MFD_MENF21BMC || COMPILE_TEST
@@ -482,6 +493,7 @@ config 21285_WATCHDOG 
config 977_WATCHDOG

	tristate "NetWinder WB83C977 watchdog"

	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)

	depends on HAS_IOPORT

	help

	  Say Y here to include support for the WB977 watchdog included in

	  NetWinder machines. Alternatively say M to compile the driver as
@@ -1075,7 +1087,7 @@ config ACQUIRE_WDT 


config ADVANTECH_WDT

	tristate "Advantech SBC Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  If you are configuring a Linux kernel for the Advantech single-board

	  computer, say `Y' here to support its built-in watchdog timer
@@ -1084,7 +1096,7 @@ config ADVANTECH_WDT 


config ADVANTECH_EC_WDT

	tristate "Advantech Embedded Controller Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	select ISA_BUS_API

	select WATCHDOG_CORE

	help
@@ -1117,7 +1129,7 @@ config ALIM7101_WDT 


config EBC_C384_WDT

	tristate "WinSystems EBC-C384 Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	select ISA_BUS_API

	select WATCHDOG_CORE

	help
@@ -1127,7 +1139,7 @@ config EBC_C384_WDT 


config EXAR_WDT

	tristate "Exar Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	select WATCHDOG_CORE

	help

	  Enables watchdog timer support for the watchdog timer present
@@ -1138,7 +1150,7 @@ config EXAR_WDT 


config F71808E_WDT

	tristate "Fintek F718xx, F818xx Super I/O Watchdog"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	select WATCHDOG_CORE

	help

	  This is the driver for the hardware watchdog on the Fintek F71808E,
@@ -1150,7 +1162,7 @@ config F71808E_WDT 


config SP5100_TCO

	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"

	depends on (X86 || COMPILE_TEST) && PCI

	depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT

	select WATCHDOG_CORE

	help

	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
@@ -1189,7 +1201,7 @@ config SC520_WDT 


config SBC_FITPC2_WATCHDOG

	tristate "Compulab SBC-FITPC2 watchdog"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  This is the driver for the built-in watchdog timer on the fit-PC2,

	  fit-PC2i, CM-iAM single-board computers made by Compulab.
@@ -1214,7 +1226,7 @@ config SBC_FITPC2_WATCHDOG 


config EUROTECH_WDT

	tristate "Eurotech CPU-1220/1410 Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  Enable support for the watchdog timer on the Eurotech CPU-1220 and

	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
@@ -1222,7 +1234,7 @@ config EUROTECH_WDT 


config IB700_WDT

	tristate "IB700 SBC Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  This is the driver for the hardware watchdog on the IB700 Single

	  Board Computer produced by TMC Technology (www.tmc-uk.com). This
@@ -1239,7 +1251,7 @@ config IB700_WDT 


config IBMASR

	tristate "IBM Automatic Server Restart"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  This is the driver for the IBM Automatic Server Restart watchdog

	  timer built-in into some eServer xSeries machines.
@@ -1249,7 +1261,7 @@ config IBMASR 


config WAFER_WDT

	tristate "ICP Single Board Computer Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  This is a driver for the hardware watchdog on the ICP Single

	  Board Computer. This driver is working on (at least) the following
@@ -1271,7 +1283,7 @@ config I6300ESB_WDT 


config IE6XX_WDT

	tristate "Intel Atom E6xx Watchdog"

	depends on (X86 || COMPILE_TEST) && PCI

	depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT

	select WATCHDOG_CORE

	select MFD_CORE

	select LPC_SCH
@@ -1301,6 +1313,7 @@ config ITCO_WDT 
	select WATCHDOG_CORE

	depends on I2C || I2C=n

	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT

	depends on HAS_IOPORT # for I2C_I801

	select LPC_ICH if !EXPERT

	select I2C_I801 if !EXPERT && I2C

	help
@@ -1331,7 +1344,7 @@ config ITCO_VENDOR_SUPPORT 


config IT8712F_WDT

	tristate "IT8712F (Smart Guardian) Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  This is the driver for the built-in watchdog timer on the IT8712F

	  Super I/0 chipset used on many motherboards.
@@ -1344,7 +1357,7 @@ config IT8712F_WDT 


config IT87_WDT

	tristate "IT87 Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	select WATCHDOG_CORE

	help

	  This is the driver for the hardware watchdog on the ITE IT8607,
@@ -1392,7 +1405,7 @@ config KEMPLD_WDT 


config SC1200_WDT

	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  This is a driver for National Semiconductor PC87307/PC97307 hardware

	  watchdog cards as found on the SC1200. This watchdog is mainly used
@@ -1415,7 +1428,7 @@ config SCx200_WDT 


config PC87413_WDT

	tristate "NS PC87413 watchdog"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  This is the driver for the hardware watchdog on the PC87413 chipset

	  This watchdog simply watches your kernel to make sure it doesn't
@@ -1429,7 +1442,7 @@ config PC87413_WDT 


config NV_TCO

	tristate "nVidia TCO Timer/Watchdog"

	depends on (X86 || COMPILE_TEST) && PCI

	depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT

	help

	  Hardware driver for the TCO timer built into the nVidia Hub family

	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
@@ -1458,7 +1471,7 @@ config RDC321X_WDT 


config 60XX_WDT

	tristate "SBC-60XX Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  This driver can be used with the watchdog timer found on some

	  single board computers, namely the 6010 PII based computer.
@@ -1498,7 +1511,7 @@ config SBC7240_WDT 


config CPU5_WDT

	tristate "SMA CPU5 Watchdog"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  TBD.

	  To compile this driver as a module, choose M here: the
@@ -1506,7 +1519,7 @@ config CPU5_WDT 


config SMSC_SCH311X_WDT

	tristate "SMSC SCH311X Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  This is the driver for the hardware watchdog timer on the

	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
@@ -1518,7 +1531,7 @@ config SMSC_SCH311X_WDT 


config SMSC37B787_WDT

	tristate "Winbond SMsC37B787 Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  This is the driver for the hardware watchdog component on the

	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
@@ -1564,7 +1577,7 @@ config VIA_WDT 


config W83627HF_WDT

	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	select WATCHDOG_CORE

	help

	  This is the driver for the hardware watchdog on the following
@@ -1594,7 +1607,7 @@ config W83627HF_WDT 


config W83877F_WDT

	tristate "W83877F (EMACS) Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  This is the driver for the hardware watchdog on the W83877F chipset

	  as used in EMACS PC-104 motherboards (and likely others).  This
@@ -1609,7 +1622,7 @@ config W83877F_WDT 


config W83977F_WDT

	tristate "W83977F (PCM-5335) Watchdog Timer"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  This is the driver for the hardware watchdog on the W83977F I/O chip

	  as used in AAEON's PCM-5335 SBC (and likely others).  This
@@ -1622,7 +1635,7 @@ config W83977F_WDT 


config MACHZ_WDT

	tristate "ZF MachZ Watchdog"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  If you are using a ZF Micro MachZ processor, say Y here, otherwise

	  N.  This is the driver for the watchdog timer built-in on that
@@ -1635,7 +1648,7 @@ config MACHZ_WDT 


config SBC_EPX_C3_WATCHDOG

	tristate "Winsystems SBC EPX-C3 watchdog"

	depends on X86 || COMPILE_TEST

	depends on (X86 || COMPILE_TEST) && HAS_IOPORT

	help

	  This is the driver for the built-in watchdog timer on the EPX-C3

	  Single-board computer made by Winsystems, Inc.
@@ -2197,7 +2210,7 @@ comment "PCI-based Watchdog Cards" 


config PCIPCWATCHDOG

	tristate "Berkshire Products PCI-PC Watchdog"

	depends on PCI

	depends on PCI && HAS_IOPORT

	help

	  This is the driver for the Berkshire Products PCI-PC Watchdog card.

	  This card simply watches your kernel to make sure it doesn't freeze,
@@ -2212,7 +2225,7 @@ config PCIPCWATCHDOG 


config WDTPCI

	tristate "PCI-WDT500/501 Watchdog timer"

	depends on PCI

	depends on PCI && HAS_IOPORT

	help

	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.

drivers/watchdog/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -120,6 +120,7 @@ obj-$(CONFIG_WAFER_WDT) += wafer5823wdt.o 
obj-$(CONFIG_I6300ESB_WDT) += i6300esb.o

obj-$(CONFIG_IE6XX_WDT) += ie6xx_wdt.o

obj-$(CONFIG_ITCO_WDT) += iTCO_wdt.o

obj-$(CONFIG_LENOVO_SE10_WDT) += lenovo_se10_wdt.o

ifeq ($(CONFIG_ITCO_VENDOR_SUPPORT),y)

obj-$(CONFIG_ITCO_WDT) += iTCO_vendor_support.o

endif

drivers/watchdog/bd9576_wdt.c

+1 −11
Original line number Diff line number Diff line
@@ -29,7 +29,6 @@ struct bd9576_wdt_priv { 
	struct gpio_desc	*gpiod_en;

	struct device		*dev;

	struct regmap		*regmap;

	bool			always_running;

	struct watchdog_device	wdd;

};
@@ -62,10 +61,7 @@ static int bd9576_wdt_stop(struct watchdog_device *wdd) 
{

	struct bd9576_wdt_priv *priv = watchdog_get_drvdata(wdd);



	if (!priv->always_running)

	bd9576_wdt_disable(priv);

	else

		set_bit(WDOG_HW_RUNNING, &wdd->status);



	return 0;

}
@@ -264,9 +260,6 @@ static int bd9576_wdt_probe(struct platform_device *pdev) 
	if (ret)

		return ret;



	priv->always_running = device_property_read_bool(dev->parent,

							 "always-running");



	watchdog_set_drvdata(&priv->wdd, priv);



	priv->wdd.info			= &bd957x_wdt_ident;
@@ -281,9 +274,6 @@ static int bd9576_wdt_probe(struct platform_device *pdev) 


	watchdog_stop_on_reboot(&priv->wdd);



	if (priv->always_running)

		bd9576_wdt_start(&priv->wdd);



	return devm_watchdog_register_device(dev, &priv->wdd);

}

drivers/watchdog/cpu5wdt.c

+1 −1
Original line number Diff line number Diff line
@@ -252,7 +252,7 @@ static void cpu5wdt_exit(void) 
	if (cpu5wdt_device.queue) {

		cpu5wdt_device.queue = 0;

		wait_for_completion(&cpu5wdt_device.stop);

		del_timer(&cpu5wdt_device.timer);

		timer_shutdown_sync(&cpu5wdt_device.timer);

	}



	misc_deregister(&cpu5wdt_misc);

drivers/watchdog/lenovo_se10_wdt.c

0 → 100644
+308 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-or-later

/*

 * WDT driver for Lenovo SE10.

 */



#include <linux/delay.h>

#include <linux/dmi.h>

#include <linux/io.h>

#include <linux/module.h>

#include <linux/moduleparam.h>

#include <linux/platform_device.h>

#include <linux/string.h>

#include <linux/types.h>

#include <linux/watchdog.h>



#define STATUS_PORT	0x6C

#define CMD_PORT	0x6C

#define DATA_PORT	0x68

#define OUTBUF_FULL	0x01

#define INBUF_EMPTY	0x02

#define CFG_LDN		0x07

#define CFG_BRAM_LDN	0x10 /* for BRAM Base */

#define CFG_PORT	0x2E

#define CFG_SIZE           2

#define CMD_SIZE           4

#define BRAM_SIZE          2



#define UNLOCK_KEY	0x87

#define LOCK_KEY	0xAA



#define CUS_WDT_SWI	0x1A

#define CUS_WDT_CFG	0x1B

#define CUS_WDT_FEED	0xB0

#define CUS_WDT_CNT	0xB1



#define DRVNAME	"lenovo-se10-wdt"



/*The timeout range is 1-255 seconds*/

#define MIN_TIMEOUT 1

#define MAX_TIMEOUT 255

#define MAX_WAIT    10



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

static unsigned short bram_base;

static struct platform_device *se10_pdev;



static int timeout; /* in seconds */

module_param(timeout, int, 0);

MODULE_PARM_DESC(timeout,

		 "Watchdog timeout in seconds. 1 <= timeout <= 255, default="

		 __MODULE_STRING(WATCHDOG_TIMEOUT) ".");



static bool nowayout = WATCHDOG_NOWAYOUT;

module_param(nowayout, bool, 0);

MODULE_PARM_DESC(nowayout,

		 "Watchdog cannot be stopped once started (default="

		 __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");



struct se10_wdt {

	struct watchdog_device wdd;

};



static int set_bram(unsigned char offset, unsigned char val)

{

	if (!request_muxed_region(bram_base, BRAM_SIZE, DRVNAME))

		return -EBUSY;

	outb(offset, bram_base);

	outb(val, bram_base + 1);

	release_region(bram_base, BRAM_SIZE);

	return 0;

}



static void wait_for_buffer(int condition)

{

	int loop = 0;



	while (1) {

		if (inb(STATUS_PORT) & condition || loop > MAX_WAIT)

			break;

		loop++;

		usleep_range(10, 125);

	}

}



static void send_cmd(unsigned char cmd)

{

	wait_for_buffer(INBUF_EMPTY);

	outb(cmd, CMD_PORT);

	wait_for_buffer(INBUF_EMPTY);

}



static void lpc_write(unsigned char index, unsigned char data)

{

	outb(index, CFG_PORT);

	outb(data, CFG_PORT + 1);

}



static unsigned char lpc_read(unsigned char index)

{

	outb(index, CFG_PORT);

	return inb(CFG_PORT + 1);

}



static int wdt_start(struct watchdog_device *wdog)

{

	return set_bram(CUS_WDT_SWI, 0x80);

}



static int wdt_set_timeout(struct watchdog_device *wdog, unsigned int timeout)

{

	wdog->timeout = timeout;

	return set_bram(CUS_WDT_CFG, wdog->timeout);

}



static int wdt_stop(struct watchdog_device *wdog)

{

	return set_bram(CUS_WDT_SWI, 0);

}



static unsigned int wdt_get_time(struct watchdog_device *wdog)

{

	unsigned char time;



	if (!request_muxed_region(CMD_PORT, CMD_SIZE, DRVNAME))

		return -EBUSY;

	send_cmd(CUS_WDT_CNT);

	wait_for_buffer(OUTBUF_FULL);

	time = inb(DATA_PORT);

	release_region(CMD_PORT, CMD_SIZE);

	return time;

}



static int wdt_ping(struct watchdog_device *wdog)

{

	if (!request_muxed_region(CMD_PORT, CMD_SIZE, DRVNAME))

		return -EBUSY;

	send_cmd(CUS_WDT_FEED);

	release_region(CMD_PORT, CMD_SIZE);

	return 0;

}



static const struct watchdog_info wdt_info = {

	.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,

	.identity = "Lenovo SE10 Watchdog",

};



static const struct watchdog_ops se10_wdt_ops = {

	.owner = THIS_MODULE,

	.start = wdt_start,

	.stop = wdt_stop,

	.ping = wdt_ping,

	.set_timeout = wdt_set_timeout,

	.get_timeleft = wdt_get_time,

};



static unsigned int get_chipID(void)

{

	unsigned char msb, lsb;



	outb(UNLOCK_KEY, CFG_PORT);

	outb(0x01, CFG_PORT);

	outb(0x55, CFG_PORT);

	outb(0x55, CFG_PORT);

	msb = lpc_read(0x20);

	lsb = lpc_read(0x21);

	outb(LOCK_KEY, CFG_PORT);

	return (msb * 256 + lsb);

}



static int se10_wdt_probe(struct platform_device *pdev)

{

	struct device *dev = &pdev->dev;

	struct se10_wdt *priv;

	unsigned int chip_id;

	int ret;



	if (!request_muxed_region(CFG_PORT, CFG_SIZE, DRVNAME))

		return -EBUSY;



	chip_id = get_chipID();

	if (chip_id != 0x5632) {

		release_region(CFG_PORT, CFG_SIZE);

		return -ENODEV;

	}



	lpc_write(CFG_LDN, CFG_BRAM_LDN);

	bram_base = (lpc_read(0x60) << 8) | lpc_read(0x61);

	release_region(CFG_PORT, CFG_SIZE);



	dev_info(dev, "Found Lenovo SE10 0x%x\n", chip_id);



	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);

	if (!priv)

		return -ENOMEM;



	watchdog_set_drvdata(&priv->wdd, priv);



	priv->wdd.parent = dev;

	priv->wdd.info = &wdt_info,

	priv->wdd.ops = &se10_wdt_ops,

	priv->wdd.timeout = WATCHDOG_TIMEOUT; /* Set default timeout */

	priv->wdd.min_timeout = MIN_TIMEOUT;

	priv->wdd.max_timeout = MAX_TIMEOUT;



	set_bram(CUS_WDT_CFG, WATCHDOG_TIMEOUT); /* Set time to default */



	watchdog_init_timeout(&priv->wdd, timeout, dev);

	watchdog_set_nowayout(&priv->wdd, nowayout);

	watchdog_stop_on_reboot(&priv->wdd);

	watchdog_stop_on_unregister(&priv->wdd);



	ret = devm_watchdog_register_device(dev, &priv->wdd);



	dev_dbg(&pdev->dev, "initialized. timeout=%d sec (nowayout=%d)\n",

		priv->wdd.timeout, nowayout);



	return ret;

}



static struct platform_driver se10_wdt_driver = {

	.driver = {

		.name = DRVNAME,

	},

	.probe  = se10_wdt_probe,

};



static int se10_create_platform_device(const struct dmi_system_id *id)

{

	int err;



	se10_pdev = platform_device_alloc("lenovo-se10-wdt", -1);

	if (!se10_pdev)

		return -ENOMEM;



	err = platform_device_add(se10_pdev);

	if (err)

		platform_device_put(se10_pdev);



	return err;

}



static const struct dmi_system_id se10_dmi_table[] __initconst = {

	{

		.ident = "LENOVO-SE10",

		.matches = {

			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),

			DMI_MATCH(DMI_PRODUCT_NAME, "12NH"),

		},

		.callback = se10_create_platform_device,

	},

	{

		.ident = "LENOVO-SE10",

		.matches = {

			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),

			DMI_MATCH(DMI_PRODUCT_NAME, "12NJ"),

		},

		.callback = se10_create_platform_device,

	},

	{

		.ident = "LENOVO-SE10",

		.matches = {

			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),

			DMI_MATCH(DMI_PRODUCT_NAME, "12NK"),

		},

		.callback = se10_create_platform_device,

	},

	{

		.ident = "LENOVO-SE10",

		.matches = {

			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),

			DMI_MATCH(DMI_PRODUCT_NAME, "12NL"),

		},

		.callback = se10_create_platform_device,

	},

	{

		.ident = "LENOVO-SE10",

		.matches = {

			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),

			DMI_MATCH(DMI_PRODUCT_NAME, "12NM"),

		},

		.callback = se10_create_platform_device,

	},

	{}

};

MODULE_DEVICE_TABLE(dmi, se10_dmi_table);



static int __init se10_wdt_init(void)

{

	if (!dmi_check_system(se10_dmi_table))

		return -ENODEV;



	return platform_driver_register(&se10_wdt_driver);

}



static void __exit se10_wdt_exit(void)

{

	if (se10_pdev)

		platform_device_unregister(se10_pdev);

	platform_driver_unregister(&se10_wdt_driver);

}



module_init(se10_wdt_init);

module_exit(se10_wdt_exit);



MODULE_LICENSE("GPL");

MODULE_AUTHOR("David Ober<dober@lenovo.com>");

MODULE_AUTHOR("Mark Pearson <mpearson-lenovo@squebb.ca>");

MODULE_DESCRIPTION("WDT driver for Lenovo SE10");