I need to just return in case it's not my NMI so someone else can take a look
at it (and reset die_nmi_called to 0 in case I actually do get one that's mine
to handle).
Signed-off-by: NThomas Mingarelli <thomas.mingarelli@hp.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

 - split platform device/driver registering from actual watchdog device/driver
   registering so that we can cleanly load/unload
 - fixup __initdata with __initconst and __devinitdata with __devinitconst
Signed-off-by: NMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Pádraig Brady requested the possibility of not disabling the watchdog
at module load time or kernel boot time if it had been previously enabled
in the bios. It may help rebooting the machine if it freezes before the
userland daemon kicks in.
Signed-off-by: NSamuel Tardieu <sam@rfc1149.net>
Cc: Pádraig Brady <P@draigBrady.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Signed-off-by: NSamuel Tardieu <sam@rfc1149.net>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Some non-exported functions always returned 0. Mark them void instead.
Signed-off-by: NSamuel Tardieu <sam@rfc1149.net>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>

Since 43cc71ee, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable watchdog
drivers, to re-enable auto loading.

[dbrownell@users.sourceforge.net: more drivers; registration fixes]
Signed-off-by: NKay Sievers <kay.sievers@vrfy.org>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

I noticed this while testing the latest code. I'm not sure if it is required,
but the normal (or LSB) timeout value is set to zero, so the MSB should
be as well to stay consistent.

If the chip revision is >= 8, set MSB of the 16-bit timeout value to zero
when disabling the watchdog in it8712f_wdt_disable().
Signed-off-by: NAndrew Paprocki <andrew@ishiboo.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

This patch corrects an error in the driver it8712f_wdt.  You cannot set
the 16-bit WDT_TIMEOUT access as a 16-bit outw, because the byte
ordering will be wrong.  So just do the high 8 bits as a separate
access.
Signed-off-by: NOliver Schuster <olivers137@aol.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This patch makes the needlessly global asminline_call() static and 
removes the not required "asmlinkage".
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Acked-by: NThomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Cc: Andrew Morton <akpm@linux-foundation.org>

Remove the volatile since those are useless in such a structure.
Signed-off-by: NFlorian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

We can simplify the code by deleting all of the duplicated DMI table
walking code and using the kernel's existing dmi_walk() interface to
find the DMI entry the driver is looking for.
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
Acked-by: NThomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

The return value of smbios_scan_machine() is never used, and when it
succeeds it doesn't return anything, so just make it void.  This fixes:

    drivers/watchdog/hpwdt.c: In function 'smbios_scan_machine':
    drivers/watchdog/hpwdt.c:562: warning: control reaches end of non-void function
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
Acked-by: NThomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

On my HP DL380 G5 system running a 64-bit kernel, loading the hpwdt
driver causes a crash because the driver attempts to ioremap an
invalid physical address.  This is because the driver has an incorrect
definition of the SMBIOS table entry point structure: the table
address is only a 32-bit quantity, and making it a u64 means that the
high-order 32 bits end up containing garbage.

Correcting the structure definition fixes the driver so that it loads
without any problems on my system.
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
Acked-by: NThomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

This patch adds support for 16-bit watchdog timeout values which are
available in chip revisions >= 0x08. Values <= 65535 are seconds precision,
otherwise minutes precision is used up to a maximum value of 3932100. Added
implementation for WDIOC_GETSTATUS which checks the WDT status bit in the
WDT control register.
Signed-off-by: NAndrew Paprocki <andrew@ishiboo.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Hp is providing a Hardware WatchDog Timer driver that will only work with the
specific HW Timer located in the HP ProLiant iLO 2 ASIC. The iLO 2 HW Timer
will generate a Non-maskable Interrupt (NMI) 9 seconds before physically
resetting the server, by removing power, so that the event can be logged to
the HP Integrated Management Log (IML), a Non-Volatile Random Access Memory
(NVRAM). The logging of the event is performed using the HP ProLiant ROM via
an Industry Standard access known as a BIOS Service Directory Entry.
Signed-off-by: NThomas Mingarelli <thomas.mingarelli@hp.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Signed-off-by: NMike Frysinger <michael.frysinger@analog.com>
Signed-off-by: NBryan Wu <bryan.wu@analog.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

This patch converts the MTX-1 to be a platform device, use the available
generic GPIO API for the MTX-1 board and register the miscdev alias.
Signed-off-by: NFlorian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

Support watchdog timers built into SiByte MIPS SoCs.
Signed-off-by: NAndy Sharp <andy.sharp@onstor.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NAdrian Bunk <bunk@kernel.org>

Use SGI_HAS_INDYDOG for INDYDOG depends.
Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

"static struct file_operations" should be
"static const struct file_operations".
Signed-off-by: NJan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

This is a driver for watchdog timer built into TXx9 MIPS SoCs.
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

Make sure that we first do a register_reboot_notifier before we
do a misc_register. A misc_register opens the interface to
userspace and it's best to do this as the last action.
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

The audit of _p usage shows various drivers assume inb_p is somehow atomic.
 Of course it isn't and the delay can be split from the I/O cycle causing a
timing violation on chips that matter (eg this one)

With the proposed use of udelay() for some _p delays this will cease to be
a mostly theoretical bug (as the delay stall is unsplittable) and wants
fixing.

Lots of other drivers need fixing this way too.
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

These are derivatives of the AT32AP7000 chip, which means that most of
the code stays the same. Rename a few files, functions, definitions
and config symbols to reflect that they apply to all AP700x chips, and
exclude some platform devices from chips where they aren't present.
Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>

This reverts commit 3ff6eb4a.

the !found check in the for loop allready made sure that only one
device was found.
Signed-Off-By: NPádraig Brady <P@draigBrady.com>
Signed-Off-By: NWim Van Sebroeck <wim@iguana.be>

Adds support for the built-in watchdog on EPIC Nano 7240 boards from IEI.

Tested on Nano-7240RS.

Hardware documentation of the platform (including watchdog) can be found
on the IEI website: http://www.ieiworld.comSigned-off-by: NGilles Gigan <gilles.gigan@gmail.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

This patch adds support for the ITE Tech Inc. IT8712F EC-LPC Super I/O 
chipset found on many Pentium III and AMD motherboards. Developed using code 
from other watchdog drivers and the datasheet on ITE Tech homepage.
Signed-off-by: NJorge Boncompte <jorge@dti2.net>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

bfin_wdt, remove SPIN_LOCK_UNLOCKED

SPIN_LOCK_UNLOCKED is deprecated, use DEFINE_SPINLOCK instead
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Acked-by: NMike Frysinger <vapier.adi@gmail.com>
Cc: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

If no address is given for the W83697HF/HG watchdog IO port, stop looping
through possible locations when a watchdog device has been found.
Signed-off-by: NSamuel Tardieu <sam@rfc1149.net>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

This patch enables the watchdog to read out the reset cause after a boot and
provide this to the user.

The driver will now also return -EIO if probed when booting from a watchdog
reset. This is due to a silicon errata in the AT32AP700x devices.

Detailed description and work-arounds can be found in the errata section of the
datasheet avilable from
http://www.atmel.com/dyn/products/datasheets.asp?family_id=682Signed-off-by: NHans-Christian Egtvedt <hcegtvedt@atmel.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>

Some watchdog drivers initialize global spinlocks in module's init function
which is tolerable, but some do it in PCI probe function.  So, switch to
static initialization to fix theoretical bugs and, more importantly, stop
giving people bad examples.
Signed-off-by: NAlexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

Fix links to files in Documentation/* in various Kconfig files
Signed-off-by: NDirk Hohndel <hohndel@linux.intel.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

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>

Signed-off-by: NIlpo Jarvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>