Add support for the following I/O controller hubs:
ICH7DH, ICH9M, ICH9M-E, ICH10, ICH10R, ICH10D and ICH10DO.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

The iTCO_wdt code was not clearing the correct bits.
It now clears the timeout status bit and then the
SECOND_TO_STS bit and then the BOOT_STS bit.
Note: we should first clear the SECOND_TO_STS bit
before clearing the BOOT_STS bit.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Bugzilla #9868: On Intel motherboards with the ICH9 based I/O controllers
(Like DP35DP and DG33FB) the iTCO timer counts but it doesn't reboot the
system after the counter expires.

This patch fixes this by moving the enabling & disabling of the TCO_EN bit
in the SMI_EN register into the start and stop code.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

More coding style clean-up's.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

This brings the watchdog drivers into line with coding style.
This patch takes cares of the indentation as described in chapter 1.
Main changes:
* Re-structure the ioctl switch call for all drivers as follows:
	switch (cmd) {
	case WDIOC_GETSUPPORT:
	case WDIOC_GETSTATUS:
	case WDIOC_GETBOOTSTATUS:
	case WDIOC_GETTEMP:
	case WDIOC_SETOPTIONS:
	case WDIOC_KEEPALIVE:
	case WDIOC_SETTIMEOUT:
	case WDIOC_GETTIMEOUT:
	case WDIOC_GETTIMELEFT:
	default:
	}

This to make the migration from the drivers to the uniform watchdog
device driver easier in the future.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Review and switch to unlocked_ioctl
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Add the Intel ICH9DO controller ID's for the iTCO_wdt kernel driver and bump
the driver version.

Tested on an P5E-VM DO ASUS motherboard.
Signed-off-by: NGabriel Craciunescu <nix.or.die@googlemail.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

Add the pci-device-id's for the ICH8M and the ICH8M-E chipsets.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Mark init and exit procedures as __devinit & _-devexit.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Make the pci_device_id table more readable.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Unlock in iTCO_wdt_start when reboot is disabled
Signed-off-by: NRoel Kluin <12o3l@tiscali.nl>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

move watchdog tree from drivers/char/watchdog to drivers/watchdog.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Add support for the ICH9 I/O chipsets to iTCO_wdt.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Add all LPC bridges for the 631xESB/632xESB I/O chipset.
The datasheet says:
* Device Function = B0:D31:FO
* Function Description = LPC interface
* DEV ID = 267xh
* Comment = 2670h-267Fh
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Add 631xESB/632xESB support to the iTCO_wdt driver.
Signed-off-by: NSergey Kononenko <sergk@sergk.org.ua>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

The ACPI/PM base I/O address which is the base
for the TCO registers is defined as bits [15:7]
(highest bit is 31, lowest is 0)

The code however only reads bits [14:7]. So
        base_address &= 0x00007f80;
needs to be:
        base_address &= 0x0000ff80;

This patch fixes this.
Signed-off-by: NAte Wijma <ajwijma@hotmail.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

change default=CONFIG_WATCHDOG_NOWAYOUT in the module parameter
for nowayout by it's real value (0 or 1) by using:
__MODULE_STRING(WATCHDOG_NOWAYOUT)
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Add vendor specific support to the intel TCO timer based watchdog
devices. At this moment we only have additional support for some
SuperMicro Inc. motherboards.
Signed-off-by: NRobert Seretny <lkpatches@paypc.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

gcc emits the following warning:

drivers/char/watchdog/iTCO_wdt.c: In function ‘iTCO_wdt_ioctl’:
drivers/char/watchdog/iTCO_wdt.c:429: warning: ‘time_left’ may be used uninitialized in this function

This indicates a condition near enough to a bug, to want to fix.
iTCO_wdt_get_timeleft() stores a value in 'time_left' iff
iTCO_version==(1 or 2).  This driver only supports versions
1 or 2, so this is ok.  However, since (a) the return value of
iTCO_wdt_get_timeleft() is handled anyway, (b) it fixes the warning,
and (c) it future-proofs the driver, we go ahead and add the obvious
return value.
Signed-off-by: NJeff Garzik <jeff@garzik.org>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Signed-off-by: NAndrew Morton <akpm@osdl.org>

Add ICH8 support to the iTCO_wdt driver.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Add ICH8 support to the iTCO_wdt driver.
Signed-off-by: NArnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

kbuild explicitly includes this at build time.
Signed-off-by: NDave Jones <davej@redhat.com>

Return ENOTTY instead of ENOIOCTLCMD in user-visible ioctl() results

The watchdog drivers used to return ENOIOCTLCMD for bad ioctl() commands.
ENOIOCTLCMD should not be visible by the user, so use ENOTTY instead.
Signed-off-by: NSamuel Tardieu <sam@rfc1149.net>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Acked-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>

Since we are using the device driver model,
we don't need to arrange the shutdown via a
reboot_notifier.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

for_each_pci_dev calls pci_get_device (and thus
it calls pci_dev_get). So we need to do a pci_dev_put
to keep the refcounting correct.
(Thanks to Jiri Slaby <jirislaby@gmail.com>)
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Convert the iTCO_wdt driver to a platform device
driver.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Hardware driver for the intel TCO timer based watchdog devices.
These drivers are included in the Intel 82801 I/O Controller
Hub family (from ICH0 up to ICH7) and in the Intel 6300ESB
controller hub.

This driver will replace the i8xx_tco.c driver.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>