Commit Graph

573 Commits

Author SHA1 Message Date
Randy Dunlap 708d42472f watchdog: fix nv_tco section mismatch
Fix section mismatch warning:
Mark the called nv_tco_getdevice() as __devinit, just like its caller.

WARNING: drivers/watchdog/nv_tco.o(.devinit.text+0x16): Section mismatch in reference from the function nv_tco_init() to the function .init.text:nv_tco_getdevice()
The function __devinit nv_tco_init() references
a function __init nv_tco_getdevice().
If nv_tco_getdevice is only used by nv_tco_init then
annotate nv_tco_getdevice with a matching annotation.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-29 11:06:04 +00:00
Yinghai Lu 90d241edd1 watchdog: sp5100_tco.c: Check if firmware has set correct value in tcobase.
Stefano found SP5100 TCO watchdog driver using wrong address.

[    9.148536] SP5100 TCO timer: SP5100 TCO WatchDog Timer Driver v0.01
[    9.148628] DEBUG __ioremap_caller WARNING address=b8fe00 size=8 valid=1 reserved=1

and e820 said that range is RAM.

We should check if we can use that reading out. BIOS could just program wrong address there.

Reported-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by:Yinghai Lu <yinghai@kernel.org>
Acked-by: Mike Waychison <mikew@google.com>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@kernel.org>
2011-03-29 11:05:57 +00:00
Julia Lawall f712eacf02 watchdog: Convert release_resource to release_region/release_mem_region
Request_mem_region should be used with release_mem_region, not
release_resource.

In pnx4008_wdt.c, a missing clk_put is added as well.

The semantic match that finds the first problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,E;
@@
*x = request_mem_region(...)
... when != release_mem_region(x)
    when != x = E
* release_resource(x);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@kernel.org>
2011-03-29 11:05:48 +00:00
Julia Lawall f72401e94d watchdog: s3c2410_wdt.c: Convert release_resource to release_region/release_mem_region
Request_mem_region should be used with release_mem_region, not
release_resource.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,E;
@@
*x = request_mem_region(...)
... when != release_mem_region(x)
    when != x = E
* release_resource(x);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@kernel.org>
2011-03-29 11:05:28 +00:00
Andres Salomon 46673ed2cd rdc321x-southbridge: Use mfd_data instead of driver_data
Use mfd_data for passing information from mfd drivers to soc
clients.  The mfd_cell's driver_data field is being phased out.

Clients that were using driver_data now access .mfd_data
via mfd_get_data().

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-03-23 10:41:57 +01:00
Linus Torvalds e16b396ce3 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (47 commits)
  doc: CONFIG_UNEVICTABLE_LRU doesn't exist anymore
  Update cpuset info & webiste for cgroups
  dcdbas: force SMI to happen when expected
  arch/arm/Kconfig: remove one to many l's in the word.
  asm-generic/user.h: Fix spelling in comment
  drm: fix printk typo 'sracth'
  Remove one to many n's in a word
  Documentation/filesystems/romfs.txt: fixing link to genromfs
  drivers:scsi Change printk typo initate -> initiate
  serial, pch uart: Remove duplicate inclusion of linux/pci.h header
  fs/eventpoll.c: fix spelling
  mm: Fix out-of-date comments which refers non-existent functions
  drm: Fix printk typo 'failled'
  coh901318.c: Change initate to initiate.
  mbox-db5500.c Change initate to initiate.
  edac: correct i82975x error-info reported
  edac: correct i82975x mci initialisation
  edac: correct commented info
  fs: update comments to point correct document
  target: remove duplicate include of target/target_core_device.h from drivers/target/target_core_hba.c
  ...

Trivial conflict in fs/eventpoll.c (spelling vs addition)
2011-03-18 10:37:40 -07:00
Linus Torvalds 0df0914d41 Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (258 commits)
  omap: zoom: host should not pull up wl1271's irq line
  arm: plat-omap: iommu: fix request_mem_region() error path
  OMAP2+: Common CPU DIE ID reading code reads wrong registers for OMAP4430
  omap4: mux: Remove duplicate mux modes
  omap: iovmm: don't check 'da' to set IOVMF_DA_FIXED flag
  omap: iovmm: disallow mapping NULL address when IOVMF_DA_ANON is set
  omap2+: mux: Fix compile when CONFIG_OMAP_MUX is not selected
  omap4: board-omap4panda: Initialise the serial pads
  omap3: board-3430sdp: Initialise the serial pads
  omap4: board-4430sdp: Initialise the serial pads
  omap2+: mux: Add macro for configuring static with omap_hwmod_mux_init
  omap2+: mux: Remove the use of IDLE flag
  omap2+: Add separate list for dynamic pads to mux
  perf: add OMAP support for the new power events
  OMAP4: Add IVA OPP enteries.
  OMAP4: Update Voltage Rail Values for MPU, IVA and CORE
  OMAP4: Enable 800 MHz and 1 GHz MPU-OPP
  OMAP3+: OPP: Replace voltage values with Macros
  OMAP3: wdtimer: Fix CORE idle transition
  Watchdog: omap_wdt: add fine grain runtime-pm
  ...

Fix up various conflicts in
 - arch/arm/mach-omap2/board-omap3evm.c
 - arch/arm/mach-omap2/clock3xxx_data.c
 - arch/arm/mach-omap2/usb-musb.c
 - arch/arm/plat-omap/include/plat/usb.h
 - drivers/usb/musb/musb_core.h
2011-03-17 19:28:15 -07:00
Linus Torvalds 6d7ed21d17 Merge branches 'defcfg', 'drivers' and 'cyberpro-next' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'defcfg' of master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: 6647/1: add Versatile Express defconfig
  ARM: 6644/1: mach-ux500: update the U8500 defconfig

* 'drivers' of master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: 6764/1: pl011: factor out FIFO to TTY code
  ARM: 6763/1: pl011: add optional RX DMA to PL011 v2
  ARM: 6758/1: amba: support pm ops
  ARM: amba: make amba_driver id_table const
  ARM: amba: make internal ID table handling const
  ARM: amba: make probe() functions take const id tables
  ARM: 6662/1: amba: make amba_bustype non-static
  ARM: mmci: add dmaengine-based DMA support
  ARM: mmci: no need for separate host->data_xfered
  ARM: mmci: avoid unnecessary switch to data available PIO interrupts
  ARM: mmci: no need to call flush_dcache_page() with sg_miter API
  ARM: mmci: avoid reporting too many completed bytes on fifo overrun
  ALSA: AACI: make fifo variables more explanitory
  ALSA: AACI: no need to call snd_pcm_period_elapsed() for each period
  ALSA: AACI: use snd_pcm_lib_period_bytes()
  ALSA: AACI: clean up AACI announcement printk
  ALSA: AACI: fix channel mask selection
  ALSA: AACI: fix number of channels for record
  ALSA: AACI: fix multiple IRQ claiming

* 'cyberpro-next' of master.kernel.org:/home/rmk/linux-2.6-arm:
  VIDEO: cyberpro: remove unused cyber2000fb_get_fb_var()
  VIDEO: cyberpro: remove useless function extreg pointers
  VIDEO: cyberpro: update handling of device structures
  VIDEO: cyberpro: add support for video capture I2C
  VIDEO: cyberpro: make 'reg_b0_lock' always present
  VIDEO: cyberpro: add I2C support
  VIDEO: cyberpro: select lowest multipler/divisor for PLL
2011-03-17 18:48:35 -07:00
Linus Torvalds 4b0e976c66 Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  watchdog: booke_wdt: clean up status messages
  watchdog: cleanup spaces before tabs
  watchdog: convert to DEFINE_PCI_DEVICE_TABLE
  watchdog: Xen watchdog driver
  watchdog: Intel SCU Watchdog Timer Driver for Moorestown and Medfield platforms.
  watchdog: jz4740_wdt - fix magic character checking
  watchdog: add JZ4740 watchdog driver
  watchdog: it87_wdt: Add support for IT8721F watchdog
  watchdog: hpwdt: build hpwdt as module by default with NMI_DECODING enabled
  watchdog: hpwdt: Fix a couple of typos
2011-03-17 17:09:29 -07:00
Paul Mundt 1d2a1959fe Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest 2011-03-17 16:44:08 +09:00
Linus Torvalds 4c5811bf46 Merge branch 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6
* 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6: (21 commits)
  tty: serial: altera_jtaguart: Add device tree support
  tty: serial: altera_uart: Add devicetree support
  dt: eliminate of_platform_driver shim code
  dt: Eliminate of_platform_{,un}register_driver
  dt/serial: Eliminate users of of_platform_{,un}register_driver
  dt/usb: Eliminate users of of_platform_{,un}register_driver
  dt/video: Eliminate users of of_platform_{,un}register_driver
  dt/net: Eliminate users of of_platform_{,un}register_driver
  dt/sound: Eliminate users of of_platform_{,un}register_driver
  dt/spi: Eliminate users of of_platform_{,un}register_driver
  dt: uartlite: merge platform and of_platform driver bindings
  dt: xilinx_hwicap: merge platform and of_platform driver bindings
  ipmi: convert OF driver to platform driver
  leds/leds-gpio: merge platform_driver with of_platform_driver
  dt/sparc: Eliminate users of of_platform_{,un}register_driver
  dt/powerpc: Eliminate users of of_platform_{,un}register_driver
  dt/powerpc: move of_bus_type infrastructure to ibmebus
  drivercore/dt: add a match table pointer to struct device
  dt: Typo fix.
  altera_ps2: Add devicetree support
  ...
2011-03-16 17:28:10 -07:00
Timur Tabi 112e75466f watchdog: booke_wdt: clean up status messages
Improve the status messages that are displayed during some operations of the
PowerPC watchdog timer driver.  When the watchdog is enabled, the timeout is
displayed as a number of seconds, instead of an obscure "period".  The "period"
is the position of a bit in a 64-bit timer register.  The higher the value,
the quicker the watchdog timeout occurs.  Some people chose a high "period"
value for the timer and get confused as to why the board resets within a
few seconds.

Messages displayed during open and close are now debug messages, so that they
don't clutter the console by default.  Finally, printk() is replaced with the
pr_xxx() equivalent.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-15 16:02:39 +00:00
Wim Van Sebroeck 5f3b27569f watchdog: cleanup spaces before tabs
cleanup spaces before tabs in drivers/watchdog/

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-15 16:02:27 +00:00
Wim Van Sebroeck 4562f53940 watchdog: convert to DEFINE_PCI_DEVICE_TABLE
Convert static struct pci_device_id *[] to static DEFINE_PCI_DEVICE_TABLE tables.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-15 16:02:22 +00:00
Jan Beulich 066d6c7f4e watchdog: Xen watchdog driver
While the hypervisor change adding SCHEDOP_watchdog support included a
daemon to make use of the new functionality, having a kernel driver
for /dev/watchdog so that user space code doesn't need to distinguish
non-Xen and Xen seems to be preferable.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-15 16:02:18 +00:00
Donald Johnson 57539c1cf9 watchdog: Intel SCU Watchdog Timer Driver for Moorestown and Medfield platforms.
This submission includes:
  - Fix to intel_scu_write() to start watchdog timer the on the
    first write, and refresh on subsequent writes.
    This enables Open, write, write, ... usage model.
  - Moves boot parameter checks from intel_scu_open() to
    intel_scu_watchdog_init(), so driver init will fail if these
    parameters are out of bounds.
  - Adds check for whether process waiting in wait_event_interruptible()
    received a signal while it was waiting.
  - Other small error handling changes.

Removed the read() method for now as that wass a non-standard behaviour.

Signed-off-by: Donald Johnson <donald.k.johnson@intel.com>
Signed-off-by: Shuduo Sang <shuduo.sang@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-15 16:02:06 +00:00
Wim Van Sebroeck 742e4b6308 watchdog: jz4740_wdt - fix magic character checking
When writing to /dev/watchdog all characters should be checked
for the magic character 'V'.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-15 16:01:57 +00:00
Paul Cercueil f865c35224 watchdog: add JZ4740 watchdog driver
Adds support for the hardware watchdog found in Ingenic's jz4740
System-on-Chip.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-15 16:01:44 +00:00
Huaro Tomita 4bc30272a1 watchdog: it87_wdt: Add support for IT8721F watchdog
This patch adds support for a watchdog in IT8721F Super IO
chip to it87_wdt driver.
This new chips differ from the older IT87xxxF chips 
in the following ways:

* WDT_GAMEPORT is not in IT8721F.
* WDT_PWROK is not in IT8721F.

Signed-off-by: Haruo Tomita <haruo.tomita@toshiba.co.jp>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-15 16:01:35 +00:00
Tony Camuso a4616153de watchdog: hpwdt: build hpwdt as module by default with NMI_DECODING enabled
Builds the hpwdt driver as a module by default.
If the hardware is present, the module will be loaded.
Also, if hpwdt is loaded, it will decode NMIs by default.

This has been made possible by he patches to hpwdt made by Dann Frazier
as well as related patches submitted by Don Zickus.

hpwdt only loads on hp ProLiant x86 32-bit and 64-bit platforms.

Signed-off-by: Tony Camuso <tcamuso@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-15 16:01:24 +00:00
Naga Chumbalkar ea6649c721 watchdog: hpwdt: Fix a couple of typos
Fix some typos.

Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-15 16:01:17 +00:00
Axel Lin b77b708868 watchdog: hpwdt: eliminate section mismatch warning
hpwdt_init_nmi_decoding() is called in hpwdt_init_one error handling,
thus remove the  __devexit annotation of hpwdt_exit_nmi_decoding().

This patch fixes below warning:

WARNING: drivers/watchdog/hpwdt.o(.devinit.text+0x36f): Section mismatch in reference from the function hpwdt_init_one() to the function .devexit.text:hpwdt_exit_nmi_decoding()
The function __devinit hpwdt_init_one() references
a function __devexit hpwdt_exit_nmi_decoding().
This is often seen when error handling in the init function
uses functionality in the exit path.
The fix is often to remove the __devexit annotation of
hpwdt_exit_nmi_decoding() so it may be used outside an exit section.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-14 10:44:31 +00:00
Wim Van Sebroeck 943413c5b6 watchdog: w83697ug_wdt: Fix set bit 0 to activate GPIO2
outb_p(c || 0x01, WDT_EFDR); -> || should be |

Reported-By: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-14 10:40:30 +00:00
Dan Carpenter 6899a8e13f watchdog: sch311x_wdt: fix printk condition
"==" has higher precedence than "&".  Since
if (sch311x_sio_inb(sio_config_port, 0x30) & (0x01 == 0)) is always
false the message is never printed.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-14 10:40:21 +00:00
Wim Van Sebroeck a450c786a5 watchdog: sch311x_wdt: Fix LDN active check
if (sch311x_sio_inb(sio_config_port, 0x30) && 0x01 == 0) -> && should be &

Reported-By: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-14 10:39:53 +00:00
Wim Van Sebroeck bbd562d717 watchdog: cpwd: Fix buffer-overflow
cppcheck-1.47 reports:
[drivers/watchdog/cpwd.c:650]: (error) Buffer access out-of-bounds: p.devs

The source code is
	for (i = 0; i < 4; i++) {
		misc_deregister(&p->devs[i].misc);

where devs is defined as WD_NUMDEVS big and WD_NUMDEVS is equal to 3.
So the 4 should be a 3 or WD_NUMDEVS.

Reported-By: David Binderman
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-14 10:39:27 +00:00
Paul Walmsley 0503add9d2 Watchdog: omap_wdt: add fine grain runtime-pm
The omap_wdt should only be in full active state when the
registers are being accessed. Otherwise the device can be
on lower power mode.

This patch is based on a patch created by Kalle Jokiniemi:
https://patchwork.kernel.org/patch/618231/
which is itself based on a patch created by Atal
Shargorodsky: http://lkml.org/lkml/2009/3/10/266.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kalle Jokiniemi <kalle.jokiniemi@nokia.com>
Tested-by: Kalle Jokiniemi <kalle.jokiniemi@nokia.com>
Cc: Wim Van Sebroeck <wim@iguana.be>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Acked-by: Kevin Hilman <khilman@ti.com>
2011-03-10 22:40:05 -07:00
Jiri Slaby d406577526 watchdog: sbc_fitpc2_wdt, fix crash on systems without DMI_BOARD_NAME
Some systems don't provide DMI_BOARD_NAME in their DMI tables. Avoid
crash in such situations in fitpc2_wdt_init.

The fix is to check if the dmi_get_system_info return value is NULL.

The oops:
BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffff81253ae6>] strstr+0x26/0xa0
PGD 3966e067 PUD 39605067 PMD 0
Oops: 0000 [#1] SMP
last sysfs file: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map
CPU 1
Modules linked in: ...
Pid: 1748, comm: modprobe Not tainted 2.6.37-22-default #1 /Bochs
RIP: 0010:[<ffffffff81253ae6>]  [<ffffffff81253ae6>] strstr+0x26/0xa0
RSP: 0018:ffff88003ad73f18  EFLAGS: 00010206
RAX: 0000000000000000 RBX: 00000000ffffffed RCX: 00000000ffffffff
RDX: ffffffffa003f4cc RSI: ffffffffa003f4c2 RDI: 0000000000000000
...
CR2: 0000000000000000 CR3: 000000003b7ac000 CR4: 00000000000006e0
...
Process modprobe (pid: 1748, threadinfo ffff88003ad72000, task ffff88002e6365c0)
Stack: ...
Call Trace:
 [<ffffffffa004201f>] fitpc2_wdt_init+0x1f/0x13c [sbc_fitpc2_wdt]
 [<ffffffff810002da>] do_one_initcall+0x3a/0x170
...
Code: f3 c3 0f 1f 00 80 3e 00 53 48 89 f8 74 1b 48 89 f2 0f 1f 40 00 48 83 c2 01 80 3a 00 75 f7 49 89 d0 48 89 f8 49 29 f0 75 02 5b c3 <80> 3f 00 74 0e 0f 1f 44 00 00 48 83 c0 01 80 38 00 75 f7 49 89

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-09 21:33:37 +00:00
Justin P. Mattock ae0e47f02a Remove one to many n's in a word
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-03-01 15:47:58 +01:00
Grant Likely 1c48a5c93d dt: Eliminate of_platform_{,un}register_driver
Final step to eliminate of_platform_bus_type.  They're all just
platform drivers now.

v2: fix type in pasemi_nand.c (thanks to Stephen Rothwell)

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-02-28 13:22:46 -07:00
Russell King aa25afad2c ARM: amba: make probe() functions take const id tables
Make Primecell driver probe functions take a const pointer to their
ID tables.  Drivers should never modify their ID tables in their
probe handler.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-23 16:24:14 +00:00
Philippe De Muyter 4157a04d5d m68knommu: Rename m548x_wdt.c to m54xx_wdt.c
All m548x files were renamed to m54xx, except m548x_wdt.c.  Fix that.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-02-08 15:07:45 +10:00
Philippe De Muyter 9b9c63ff1f m68knommu: fix m548x_wdt.c compilation after headers renaming
m548x headers were renamed to m54xx, but m548x_wdt.c still uses the
old names.  Fix that.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-02-08 15:07:44 +10:00
Paul Mundt e8cdfb0509 Merge branches 'sh/wdt', 'sh/pci-express-async' and 'common/serial-rework' into sh-latest 2011-01-26 18:24:18 +09:00
Philippe De Muyter 88cce42762 watchdog: Add MCF548x watchdog driver.
Add watchdog driver for MCF548x.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 13:51:35 +00:00
Gabor Juhos f8394f61c6 watchdog: add driver for the Atheros AR71XX/AR724X/AR913X SoCs
This patch adds a driver for the built-in hardware watchdog device
of the Atheros AR71XX/AR724X/AR913X SoCs.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 13:51:29 +00:00
Mike Waychison 456c730153 watchdog: Add TCO support for nVidia chipsets
This driver adds support for /dev/watchdog for boards using either the MCP51 or
MCP55 chipsets.  These are also known as the nForce 430 and nForce 550.  This
driver is likely to work on other chipsets as well, though those are the only
two that have been tested.

Signed-off-by: Mike Waychison <mikew@google.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 13:51:23 +00:00
Priyanka Gupta 15e28bf130 watchdog: Add support for sp5100 chipset TCO
This driver adds /dev/watchdog support for the AMD sp5100 aka SB7x0 chipsets.

It follows the same conventions found in other /dev/watchdog drivers.

Signed-off-by: Priyanka Gupta <priyankag@google.com>
Signed-off-by: Mike Waychison <mikew@google.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 13:51:16 +00:00
Lutz Ballaschke e13752a1de watchdog: f71808e_wdt: add F71862FG, F71869 to Kconfig
Update Kconfig with the additional Fintek hardware that we support.

Signed-off-by: Lutz Ballaschke <vegan.grindcore@googlemail.com>
Acked-by: Giel van Schijndel <me@mortis.eu>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 13:51:10 +00:00
Seth Heasley 203f8d893e watchdog: iTCO_wdt: TCO Watchdog patch for Intel DH89xxCC PCH
This patch adds the DeviceIDs for TCO Watchdog on the Intel DH89xxCC PCH.

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 10:25:16 +00:00
Wim Van Sebroeck d38bd479a1 watchdog: iTCO_wdt: TCO Watchdog patch for Intel NM10 DeviceIDs
This patch adds the Intel NM10 DeviceIDs for iTCO Watchdog.

Reported-by: Dan Weinlader <dan@weinlader.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 10:25:08 +00:00
Yegor Yefremov 568dba66ac watchdog: ks8695_wdt: include mach/hardware.h instead of mach/timex.h.
ks8695_wdt needs KS8695_CLOCK_RATE, which is defined in
mach/hardware.h, which is pulled in by the include of mach/timex.h,
but the latter is going away, so just include mach/hardware.h
directly.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 10:24:52 +00:00
Randy Vinson 6ae98ed186 watchdog: Propagate Book E WDT period changes to all cores
When the watchdog period is changed, it needs to be propagated to all cores
in addition to the core that performed the change.

Signed-off-by: Randy Vinson <rvinson@mvista.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 10:24:38 +00:00
Timur Tabi 5d63c13415 watchdog: add CONFIG_WATCHDOG_NOWAYOUT support to PowerPC Book-E watchdog driver
Normally, the watchdog is disabled when dev/watchdog is closed, but if
CONFIG_WATCHDOG_NOWAYOUT is defined, then it means that the watchdog should
remain enabled.  So we should disable it only if CONFIG_WATCHDOG_NOWAYOUT is
not defined.

Also ensure that /dev/watchdog is only opened by one process at a time.  That
way, a second process can't accidentally disable the watchdog while the first
process has it open.  There shouldn't be any need for more than one process to
open /dev/watchdog anyway.

Signed-off-by: Timur Tabi <timur@freescale.com>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 10:24:27 +00:00
Namhyung Kim a787e71068 watchdog: alim7101_wdt: fix compiler warning on alim7101_pci_tbl
Annotate alim7101_pci_tbl as '__used' to fix following warning:

  CC      drivers/watchdog/alim7101_wdt.o
drivers/watchdog/alim7101_wdt.c:433: warning: ‘alim7101_pci_tbl’ defined but not used

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 10:24:11 +00:00
Namhyung Kim 202af5b307 watchdog: alim1535_wdt: fix compiler warning on ali_pci_tbl
Annotate ali_pci_tbl as '__used' to fix following warning:

  CC      drivers/watchdog/alim1535_wdt.o
drivers/watchdog/alim1535_wdt.c:304: warning: ‘ali_pci_tbl’ defined but not used

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 10:23:55 +00:00
Herman Morsink Vollenbroek 6d106e0cac watchdog: Fix reboot on W83627ehf chipset.
The watchdog driver for the SUPERIO chip winbond w83627ehf does not work.
If you open /dev/watchdog and write a character to /dev/watchdog then
the watchdog will be triggered. However the watchdog will not trigger
the hardware RESET after the timeout, because the watchdog has never been
enabled.

Signed-off-by: Herman Morsink Vollenbroek <h.morsinkvollenbroek@home.nl>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 10:23:52 +00:00
Benny Loenstrup Ammitzboell 9c67bea419 watchdog: Add watchdog support for W83627DHG chip
The following adds watchdog support for the Winbond W83627DHG chip.
I have tested it on a PQ7-M102XL (Intel Atom) board.

Signed-off-by: Benny Lønstrup Ammitzbøll <benny@ammitzboell-consult.dk>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 10:23:25 +00:00
Michel Arboi df278dac20 watchdog: f71808e_wdt: Add Fintek F71869 watchdog
Add Fintek f71869 as a supported watchdog device.

Signed-off-by: Michel Arboi <michel@arboi.fr.eu.org>
Acked-by: Giel van Schijndel <me@mortis.eu>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 10:23:04 +00:00
Lutz Ballaschke 7977ff6e3d watchdog: add f71862fg support
Watchdog support for Fintek F71862fg Super-I/O added.
Two different hardware reset pins of the F71862fg chip can be configured 
by an additional module parameter.

Signed-off-by: Lutz Ballaschke <vegan.grindcore@googlemail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 10:21:39 +00:00
Lutz Ballaschke f9a9f096d2 watchdog: clean-up f71808e_wdt.c
Cleaned up and replaced some magic numbers by constants.

Signed-off-by: Lutz Ballaschke <vegan.grindcore@googlemail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-01-12 10:21:27 +00:00
Linus Torvalds 42776163e1 Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (28 commits)
  perf session: Fix infinite loop in __perf_session__process_events
  perf evsel: Support perf_evsel__open(cpus > 1 && threads > 1)
  perf sched: Use PTHREAD_STACK_MIN to avoid pthread_attr_setstacksize() fail
  perf tools: Emit clearer message for sys_perf_event_open ENOENT return
  perf stat: better error message for unsupported events
  perf sched: Fix allocation result check
  perf, x86: P4 PMU - Fix unflagged overflows handling
  dynamic debug: Fix build issue with older gcc
  tracing: Fix TRACE_EVENT power tracepoint creation
  tracing: Fix preempt count leak
  tracepoint: Add __rcu annotation
  tracing: remove duplicate null-pointer check in skb tracepoint
  tracing/trivial: Add missing comma in TRACE_EVENT comment
  tracing: Include module.h in define_trace.h
  x86: Save rbp in pt_regs on irq entry
  x86, dumpstack: Fix unused variable warning
  x86, NMI: Clean-up default_do_nmi()
  x86, NMI: Allow NMI reason io port (0x61) to be processed on any CPU
  x86, NMI: Remove DIE_NMI_IPI
  x86, NMI: Add priorities to handlers
  ...
2011-01-11 11:02:13 -08:00
Don Zickus 673a6092ce x86: Convert some devices to use DIE_NMIUNKNOWN
They are a handful of places in the code that register a die_notifier
as a catch all in case no claims the NMI.  Unfortunately, they trigger
on events like DIE_NMI and DIE_NMI_IPI, which depending on when they
registered may collide with other handlers that have the ability to
determine if the NMI is theirs or not.

The function unknown_nmi_error() makes one last effort to walk the
die_chain when no one else has claimed the NMI before spitting out
messages that the NMI is unknown.

This is a better spot for these devices to execute any code without
colliding with the other handlers.

The two drivers modified are only compiled on x86 arches I believe, so
they shouldn't be affected by other arches that may not have
DIE_NMIUNKNOWN defined.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: Russ Anderson <rja@sgi.com>
Cc: Corey Minyard <minyard@acm.org>
Cc: openipmi-developer@lists.sourceforge.net
Cc: dann frazier <dannf@hp.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1294348732-15030-3-git-send-email-dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-01-07 15:08:52 +01:00
Linus Torvalds 3c0cb7c31c Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (416 commits)
  ARM: DMA: add support for DMA debugging
  ARM: PL011: add DMA burst threshold support for ST variants
  ARM: PL011: Add support for transmit DMA
  ARM: PL011: Ensure IRQs are disabled in UART interrupt handler
  ARM: PL011: Separate hardware FIFO size from TTY FIFO size
  ARM: PL011: Allow better handling of vendor data
  ARM: PL011: Ensure error flags are clear at startup
  ARM: PL011: include revision number in boot-time port printk
  ARM: vexpress: add sched_clock() for Versatile Express
  ARM i.MX53: Make MX53 EVK bootable
  ARM i.MX53: Some bug fix about MX53 MSL code
  ARM: 6607/1: sa1100: Update platform device registration
  ARM: 6606/1: sa1100: Fix platform device registration
  ARM i.MX51: rename IPU irqs
  ARM i.MX51: Add ipu clock support
  ARM: imx/mx27_3ds: Add PMIC support
  ARM: DMA: Replace page_to_dma()/dma_to_page() with pfn_to_dma()/dma_to_pfn()
  mx51: fix usb clock support
  MX51: Add support for usb host 2
  arch/arm/plat-mxc/ehci.c: fix errors/typos
  ...
2011-01-06 16:50:35 -08:00
Russell King 404a02cbd2 Merge branch 'devel-stable' into devel
Conflicts:
	arch/arm/mach-pxa/clock.c
	arch/arm/mach-pxa/clock.h
2011-01-06 22:33:32 +00:00
Ingo Molnar cc22219699 Merge commit 'v2.6.37-rc8' into perf/core
Merge reason: pick up latest -rc.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-01-04 08:08:54 +01:00
Sascha Hauer 1fef891761 Merge branch 'sgu/mxs-core-v8' of git://git.pengutronix.de/git/ukl/linux-2.6 into imx-for-2.6.38-new 2011-01-03 10:15:11 +01:00
Don Zickus 4a7863cc2e x86, nmi_watchdog: Remove ARCH_HAS_NMI_WATCHDOG and rely on CONFIG_HARDLOCKUP_DETECTOR
The x86 arch has shifted its use of the nmi_watchdog from a
local implementation to the global one provide by
kernel/watchdog.c.  This shift has caused a whole bunch of
compile problems under different config options.  I attempt to
simplify things with the patch below.

In order to simplify things, I had to come to terms with the
meaning of two terms ARCH_HAS_NMI_WATCHDOG and
CONFIG_HARDLOCKUP_DETECTOR.  Basically they mean the same thing,
the former on a local level and the latter on a global level.

With the old x86 nmi watchdog gone, there is no need to rely on
defining the ARCH_HAS_NMI_WATCHDOG variable because it doesn't
make sense any more.  x86 will now use the global
implementation.

The changes below do a few things.  First it changes the few
places that relied on ARCH_HAS_NMI_WATCHDOG to use
CONFIG_X86_LOCAL_APIC (the former was an alias for the latter
anyway, so nothing unusual here).  Those pieces of code were
relying more on local apic functionality the nmi watchdog
functionality, so the change should make sense.

Second, I removed the x86 implementation of
touch_nmi_watchdog().  It isn't need now, instead x86 will rely
on kernel/watchdog.c's implementation.

Third, I removed the #define ARCH_HAS_NMI_WATCHDOG itself from
x86.  And tweaked the include/linux/nmi.h file to tell users to
look for an externally defined touch_nmi_watchdog in the case of
ARCH_HAS_NMI_WATCHDOG _or_ CONFIG_HARDLOCKUP_DETECTOR. This
changes removes some of the ugliness in that file.

Finally, I added a Kconfig dependency for
CONFIG_HARDLOCKUP_DETECTOR that said you can't have
ARCH_HAS_NMI_WATCHDOG _and_ CONFIG_HARDLOCKUP_DETECTOR.  You can
only have one nmi_watchdog.

Tested with
ARCH=i386: allnoconfig, defconfig, allyesconfig, (various broken
configs) ARCH=x86_64: allnoconfig, defconfig, allyesconfig,
(various broken configs)

Hopefully, after this patch I won't get any more compile broken
emails. :-)

v3:
  changed a couple of 'linux/nmi.h' -> 'asm/nmi.h' to pick-up correct function
  prototypes when CONFIG_HARDLOCKUP_DETECTOR is not set.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: fweisbec@gmail.com
LKML-Reference: <1293044403-14117-1-git-send-email-dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-12-22 22:15:32 +01:00
Florian Fainelli 3b3c1f24e9 watchdog: Fix null pointer dereference while accessing rdc321x platform_data
rdc321x-wdt currently fetches its driver specific data by using the
platform_device->platform_data pointer, this is wrong because the mfd
device which registers our platform_device has been added using
mfd_add_device() which sets the platform_device->driver_data pointer
instead.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
CC: stable@kernel.org
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-12-22 12:05:21 +01:00
Fabio Estevam 2c1f4672f0 watchdog: imx: use clk_get to acquire the watchdog clock
Use clk_get to acquire the watchdog clock and also avoid hardcoding the clock name.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-12-14 09:54:19 +01:00
Ingo Molnar 10a18d7dc0 Merge commit 'v2.6.37-rc5' into perf/core
Merge reason: Pick up the latest -rc.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-12-07 07:49:51 +01:00
Wim Van Sebroeck 4fc3680894 watchdog: it8712f_wdt: add note to Kconfig
On some motherboards the it8712f watchdog does not work unless
the game port was enabled. see Bug 13140. We therefor add a note
to Kconfig.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-12-02 14:10:32 +00:00
Wolfram Sang & Martyn Welch f6e0722fc3 watchdog: gef_wdt: include fs.h
Add missing include "linux/fs.h".
This fixes compile failure.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-12-02 14:10:21 +00:00
Wim Van Sebroeck e6c3b699b2 watchdog: bcm63xx_wdt: improve platform part.
* fix devinit and devexit sections
* fix platform removal code so that the iounmap happens after the removal of the timer.
* changes the reboot_notifier by a platform shutdown method.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-12-02 14:10:16 +00:00
Seth Heasley c54fb81174 watchdog: iTCO_wdt: TCO Watchdog patch for Intel Patsburg PCH
This patch adds an additional LPC Controller DeviceID for the Intel Patsburg PCH for TCO Watchdog.

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-12-02 14:10:05 +00:00
Don Zickus 072b198a4a x86, nmi_watchdog: Remove all stub function calls from old nmi_watchdog
Now that the bulk of the old nmi_watchdog is gone, remove all
the stub variables and hooks associated with it.

This touches lots of files mainly because of how the io_apic
nmi_watchdog was implemented.  Now that the io_apic nmi_watchdog
is forever gone, remove all its fingers.

Most of this code was not being exercised by virtue of
nmi_watchdog != NMI_IO_APIC, so there shouldn't be anything to
risky here.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: fweisbec@gmail.com
Cc: gorcunov@openvz.org
LKML-Reference: <1289578944-28564-3-git-send-email-dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-11-18 09:08:23 +01:00
David Daney 468ffde46d WATCHDOG: octeon-wdt: Use I/O clock rate for timing calculations.
The creation of the I/O clock domain requires some adjustments.  Since
the watchdog counters are clocked by the I/O clock, use its rate for
timing calculations.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-watchdog@vger.kernel.org
Patchwork: http://patchwork.linux-mips.org/patch/1659/
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-29 19:08:42 +01:00
Prarit Bhargava ad1d3a26cd watchdog: iTCO_wdt.c: remove extra pci_dev_put()'s from init code
The iTCO_wdt driver erroneously releases the pci_dev, and causes PCI hotremove
to fail because of an incorrect usage count.

The probe for this driver does a for_each_pci_dev() which gets a reference for
a pci_dev when iTCO_wdt_init() is successful.  The for_each_pci_dev() loop
puts a reference for a pci_dev when iTCO_wdt_init() fails, so the
iTCO_wdt_init() does not need to do any pci_dev_put()'s.

The only pci_dev_put() that is required is in the iTCO_wdt_cleanup() function.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-10-28 22:34:37 +00:00
Florian Fainelli b63aa731cd watchdog: add support for Broadcom BCM63xx built-in watchdog
This patch adds support for the Broadcom BCM63xx SoC built-in watchdog, it
uses one of the BCM63xx hardware timer id.

Signed-off-by: Miguel Gaio <miguel.gaio@efixo.com>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-10-28 21:43:55 +00:00
Giel van Schijndel dee00abbbc watchdog: f71808e_wdt: add support for the F71889FG
Signed-off-by: Giel van Schijndel <me@mortis.eu>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-10-28 21:43:35 +00:00
Nicolas Kaiser 29c3e8c8d1 watchdog: MachZ: fix debug macro
Fix debug macro line wrapping.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-10-28 21:42:59 +00:00
Timo Juhani Lindfors a422088db2 watchdog: it8712f_wdt: Add module parameter for alternative reset sources
On iEi PCISA-9652-R10 (BIOS version 1.5) single board computer reads
from the game port do not seem to reset the watchdog timer. This patch
adds a module parameter wdt_config_reg to specify alternative reset
sources. At least WDT_RESET_KBD has been tested, even just running

while true; do
    setleds -L +scroll
    sleep 1
    setleds -L -scroll
    sleep 1
done

is enough to keep the watchdog happy.

Signed-off-by: Timo Juhani Lindfors <timo.lindfors@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-10-28 21:42:32 +00:00
Timo Juhani Lindfors f0fc10745a watchdog: it8712f_wdt: Add comments for config/control register names
Signed-off-by: Timo Juhani Lindfors <timo.lindfors@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-10-28 21:42:14 +00:00
Ondrej Zajicek dfb0b8eae1 watchdog: it87_wdt: Add support for watchdogs with 8b timers
This patch adds support for watchdogs with 8b timers, like ones in
IT8702F and older revisions of IT8712F Super IO chip, to it87_wdt
driver. This patch should be used after the patch
'it87_wdt: Add support for IT8720F watchdog'.

Signed-off-by: Ondrej Zajicek <santiago@crfreenet.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2010-10-28 21:41:08 +00:00
Ondrej Zajicek ee3e96583e watchdog: it87_wdt: Add support for IT8720F watchdog
This simple patch adds support for a watchdog in IT8720F Super IO chip
to it87_wdt driver.

Signed-off-by: Ondrej Zajicek <santiago@crfreenet.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2010-10-28 21:37:59 +00:00
Joe Perches a2b89cd85e watchdog: Use static const char * const where possible
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-10-28 21:36:05 +00:00
Prarit Bhargava 641912f479 watchdog: iTCO_wdt: Cleanup warning messages
The current iTCO_wdt driver warnings are confusing.  Currently when the device
driver returns an error the console contains:

iTCO_vendor_support: vendor-support=0
iTCO_wdt: Intel TCO WatchDog Timer Driver v1.05
iTCO_wdt: failed to reset NO_REBOOT flag, reboot disabled by hardware
iTCO_wdt: No card detected

After the patch,

iTCO_vendor_support: vendor-support=0
iTCO_wdt: Intel TCO WatchDog Timer Driver v1.05
iTCO_wdt: failed to reset NO_REBOOT flag, device disabled by hardware/BIOS

Clean this up and use the word "device" to describe the device.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-10-28 21:33:17 +00:00
Seth Heasley cad0df3700 watchdog: iTCO_wdt: TCO Watchdog patch for Intel Patsburg DeviceIDs
This patch adds the Intel Patsburg (PCH) DeviceIDs for iTCO Watchdog.
 
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-10-28 21:33:01 +00:00
Linus Torvalds 7b6181e068 Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (163 commits)
  omap: complete removal of machine_desc.io_pg_offst and .phys_io
  omap: UART: fix wakeup registers for OMAP24xx UART2
  omap: Fix spotty MMC voltages
  ASoC: OMAP4: MCPDM: Remove unnecessary include of plat/control.h
  serial: omap-serial: fix signess error
  OMAP3: DMA: Errata i541: sDMA FIFO draining does not finish
  omap: dma: Fix buffering disable bit setting for omap24xx
  omap: serial: Fix the boot-up crash/reboot without CONFIG_PM
  OMAP3: PM: fix scratchpad memory accesses for off-mode
  omap4: pandaboard: enable the ehci port on pandaboard
  omap4: pandaboard: Fix the init if CONFIG_MMC_OMAP_HS is not set
  omap4: pandaboard: remove unused hsmmc definition
  OMAP: McBSP: Remove null omap44xx ops comment
  OMAP: McBSP: Swap CLKS source definition
  OMAP: McBSP: Fix CLKR and FSR signal muxing
  OMAP2+: clock: reduce the amount of standard debugging while disabling unused clocks
  OMAP: control: move plat-omap/control.h to mach-omap2/control.h
  OMAP: split plat-omap/common.c
  OMAP: McBSP: implement functional clock switching via clock framework
  OMAP: McBSP: implement McBSP CLKR and FSR signal muxing via mach-omap2/mcbsp.c
  ...

Fixed up trivial conflicts in arch/arm/mach-omap2/
{board-zoom-peripherals.c,devices.c} as per Tony
2010-10-25 13:46:56 -07:00
Linus Torvalds 092e0e7e52 Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl
* 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl:
  vfs: make no_llseek the default
  vfs: don't use BKL in default_llseek
  llseek: automatically add .llseek fop
  libfs: use generic_file_llseek for simple_attr
  mac80211: disallow seeks in minstrel debug code
  lirc: make chardev nonseekable
  viotape: use noop_llseek
  raw: use explicit llseek file operations
  ibmasmfs: use generic_file_llseek
  spufs: use llseek in all file operations
  arm/omap: use generic_file_llseek in iommu_debug
  lkdtm: use generic_file_llseek in debugfs
  net/wireless: use generic_file_llseek in debugfs
  drm: use noop_llseek
2010-10-22 10:52:56 -07:00
Linus Torvalds c37927d435 Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl
* 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl:
  block: autoconvert trivial BKL users to private mutex
  drivers: autoconvert trivial BKL users to private mutex
  ipmi: autoconvert trivial BKL users to private mutex
  mac: autoconvert trivial BKL users to private mutex
  mtd: autoconvert trivial BKL users to private mutex
  scsi: autoconvert trivial BKL users to private mutex

Fix up trivial conflicts (due to addition of private mutex right next to
deletion of a version string) in drivers/char/pcmcia/cm40[04]0_cs.c
2010-10-22 10:49:54 -07:00
Linus Torvalds d4429f608a Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (71 commits)
  powerpc/44x: Update ppc44x_defconfig
  powerpc/watchdog: Make default timeout for Book-E watchdog a Kconfig option
  fsl_rio: Add comments for sRIO registers.
  powerpc/fsl-booke: Add e55xx (64-bit) smp defconfig
  powerpc/fsl-booke: Add p5020 DS board support
  powerpc/fsl-booke64: Use TLB CAMs to cover linear mapping on FSL 64-bit chips
  powerpc/fsl-booke: Add support for FSL Arch v1.0 MMU in setup_page_sizes
  powerpc/fsl-booke: Add support for FSL 64-bit e5500 core
  powerpc/85xx: add cache-sram support
  powerpc/85xx: add ngPIXIS FPGA device tree node to the P1022DS board
  powerpc: Fix compile error with paca code on ppc64e
  powerpc/fsl-booke: Add p3041 DS board support
  oprofile/fsl emb: Don't set MSR[PMM] until after clearing the interrupt.
  powerpc/fsl-booke: Add PCI device ids for P2040/P3041/P5010/P5020 QoirQ chips
  powerpc/mpc8xxx_gpio: Add support for 'qoriq-gpio' controllers
  powerpc/fsl_booke: Add support to boot from core other than 0
  powerpc/p1022: Add probing for individual DMA channels
  powerpc/fsl_soc: Search all global-utilities nodes for rstccr
  powerpc: Fix invalid page flags in create TLB CAM path for PTE_64BIT
  powerpc/mpc83xx: Support for MPC8308 P1M board
  ...

Fix up conflict with the generic irq_work changes in arch/powerpc/kernel/time.c
2010-10-21 21:19:54 -07:00
Arnd Bergmann 6038f373a3 llseek: automatically add .llseek fop
All file_operations should get a .llseek operation so we can make
nonseekable_open the default for future file operations without a
.llseek pointer.

The three cases that we can automatically detect are no_llseek, seq_lseek
and default_llseek. For cases where we can we can automatically prove that
the file offset is always ignored, we use noop_llseek, which maintains
the current behavior of not returning an error from a seek.

New drivers should normally not use noop_llseek but instead use no_llseek
and call nonseekable_open at open time.  Existing drivers can be converted
to do the same when the maintainer knows for certain that no user code
relies on calling seek on the device file.

The generated code is often incorrectly indented and right now contains
comments that clarify for each added line why a specific variant was
chosen. In the version that gets submitted upstream, the comments will
be gone and I will manually fix the indentation, because there does not
seem to be a way to do that using coccinelle.

Some amount of new code is currently sitting in linux-next that should get
the same modifications, which I will do at the end of the merge window.

Many thanks to Julia Lawall for helping me learn to write a semantic
patch that does all this.

===== begin semantic patch =====
// This adds an llseek= method to all file operations,
// as a preparation for making no_llseek the default.
//
// The rules are
// - use no_llseek explicitly if we do nonseekable_open
// - use seq_lseek for sequential files
// - use default_llseek if we know we access f_pos
// - use noop_llseek if we know we don't access f_pos,
//   but we still want to allow users to call lseek
//
@ open1 exists @
identifier nested_open;
@@
nested_open(...)
{
<+...
nonseekable_open(...)
...+>
}

@ open exists@
identifier open_f;
identifier i, f;
identifier open1.nested_open;
@@
int open_f(struct inode *i, struct file *f)
{
<+...
(
nonseekable_open(...)
|
nested_open(...)
)
...+>
}

@ read disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
<+...
(
   *off = E
|
   *off += E
|
   func(..., off, ...)
|
   E = *off
)
...+>
}

@ read_no_fpos disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
... when != off
}

@ write @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
<+...
(
  *off = E
|
  *off += E
|
  func(..., off, ...)
|
  E = *off
)
...+>
}

@ write_no_fpos @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
... when != off
}

@ fops0 @
identifier fops;
@@
struct file_operations fops = {
 ...
};

@ has_llseek depends on fops0 @
identifier fops0.fops;
identifier llseek_f;
@@
struct file_operations fops = {
...
 .llseek = llseek_f,
...
};

@ has_read depends on fops0 @
identifier fops0.fops;
identifier read_f;
@@
struct file_operations fops = {
...
 .read = read_f,
...
};

@ has_write depends on fops0 @
identifier fops0.fops;
identifier write_f;
@@
struct file_operations fops = {
...
 .write = write_f,
...
};

@ has_open depends on fops0 @
identifier fops0.fops;
identifier open_f;
@@
struct file_operations fops = {
...
 .open = open_f,
...
};

// use no_llseek if we call nonseekable_open
////////////////////////////////////////////
@ nonseekable1 depends on !has_llseek && has_open @
identifier fops0.fops;
identifier nso ~= "nonseekable_open";
@@
struct file_operations fops = {
...  .open = nso, ...
+.llseek = no_llseek, /* nonseekable */
};

@ nonseekable2 depends on !has_llseek @
identifier fops0.fops;
identifier open.open_f;
@@
struct file_operations fops = {
...  .open = open_f, ...
+.llseek = no_llseek, /* open uses nonseekable */
};

// use seq_lseek for sequential files
/////////////////////////////////////
@ seq depends on !has_llseek @
identifier fops0.fops;
identifier sr ~= "seq_read";
@@
struct file_operations fops = {
...  .read = sr, ...
+.llseek = seq_lseek, /* we have seq_read */
};

// use default_llseek if there is a readdir
///////////////////////////////////////////
@ fops1 depends on !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier readdir_e;
@@
// any other fop is used that changes pos
struct file_operations fops = {
... .readdir = readdir_e, ...
+.llseek = default_llseek, /* readdir is present */
};

// use default_llseek if at least one of read/write touches f_pos
/////////////////////////////////////////////////////////////////
@ fops2 depends on !fops1 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read.read_f;
@@
// read fops use offset
struct file_operations fops = {
... .read = read_f, ...
+.llseek = default_llseek, /* read accesses f_pos */
};

@ fops3 depends on !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write.write_f;
@@
// write fops use offset
struct file_operations fops = {
... .write = write_f, ...
+	.llseek = default_llseek, /* write accesses f_pos */
};

// Use noop_llseek if neither read nor write accesses f_pos
///////////////////////////////////////////////////////////

@ fops4 depends on !fops1 && !fops2 && !fops3 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
identifier write_no_fpos.write_f;
@@
// write fops use offset
struct file_operations fops = {
...
 .write = write_f,
 .read = read_f,
...
+.llseek = noop_llseek, /* read and write both use no f_pos */
};

@ depends on has_write && !has_read && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write_no_fpos.write_f;
@@
struct file_operations fops = {
... .write = write_f, ...
+.llseek = noop_llseek, /* write uses no f_pos */
};

@ depends on has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
@@
struct file_operations fops = {
... .read = read_f, ...
+.llseek = noop_llseek, /* read uses no f_pos */
};

@ depends on !has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
@@
struct file_operations fops = {
...
+.llseek = noop_llseek, /* no read or write fn */
};
===== End semantic patch =====

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Julia Lawall <julia@diku.dk>
Cc: Christoph Hellwig <hch@infradead.org>
2010-10-15 15:53:27 +02:00
Timur Tabi e0dc09ff9a powerpc/watchdog: Make default timeout for Book-E watchdog a Kconfig option
The PowerPC Book-E watchdog driver (booke_wdt.c) defines a default timeout
value in the code based on whether it's a Freescale Book-E part of not.
Instead of having hard-coded values in the driver, make it a Kconfig
option.

As newer chips gets faster, the current default values become less
appropriate, since the timeout sometimes occurs before the kernel finishes
booting.  Making the value a Kconfig option allows BSPs to configure a new
value without requiring the wdt_period command-line parameter to be set.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-10-14 01:05:32 -05:00
Timur Tabi fbdd7144ce powerpc/watchdog: Allow the Book-E driver to be compiled as a module
Register the __init and __exit functions in the PowerPC Book-E Watchdog
driver as module entry/exit functions, and modify the Kconfig entry.

Add a .release method for the PowerPC Book-E Watchdog driver, so that the
watchdog is disabled when the driver is closed.

Loosely based on original code from Jiang Yutang <b14898@freescale.com>.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-10-14 00:52:44 -05:00
David Howells ca4d3e6746 MIPS: Add missing #inclusions of <linux/irq.h>
Add missing #inclusions of <linux/irq.h> to a whole bunch of files that should
really include it.  Note that this can replace #inclusions of <asm/irq.h>.

This is required for the patch to sort out irqflags handling function naming to
compile on MIPS.

The problem is that these files require access to things like setup_irq() -
which isn't available by #including <linux/interrupt.h>

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-07 14:08:54 +01:00
Arnd Bergmann 613655fa39 drivers: autoconvert trivial BKL users to private mutex
All these files use the big kernel lock in a trivial
way to serialize their private file operations,
typically resulting from an earlier semi-automatic
pushdown from VFS.

None of these drivers appears to want to lock against
other code, and they all use the BKL as the top-level
lock in their file operations, meaning that there
is no lock-order inversion problem.

Consequently, we can remove the BKL completely,
replacing it with a per-file mutex in every case.
Using a scripted approach means we can avoid
typos.

These drivers do not seem to be under active
maintainance from my brief investigation. Apologies
to those maintainers that I have missed.

file=$1
name=$2
if grep -q lock_kernel ${file} ; then
    if grep -q 'include.*linux.mutex.h' ${file} ; then
            sed -i '/include.*<linux\/smp_lock.h>/d' ${file}
    else
            sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file}
    fi
    sed -i ${file} \
        -e "/^#include.*linux.mutex.h/,$ {
                1,/^\(static\|int\|long\)/ {
                     /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex);

} }"  \
    -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \
    -e '/[      ]*cycle_kernel_lock();/d'
else
    sed -i -e '/include.*\<smp_lock.h\>/d' ${file}  \
                -e '/cycle_kernel_lock()/d'
fi

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2010-10-05 15:01:04 +02:00
Varadarajan, Charulatha 7ec5ad0f3c OMAP: WDT: Use PM runtime APIs instead of clk FW APIs
Call runtime pm APIs pm_runtime_put_sync() and pm_runtime_get_sync()
for enabling/disabling the clocks, sysconfig settings instead of using
clock FW APIs.

Signed-off-by: Charulatha V <charu@ti.com>
Acked-by: Cousson, Benoit <b-cousson@ti.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-09-29 12:21:58 -07:00
Kevin Wells 0a18e15598 watchdog: Enable NXP LPC32XX support in Kconfig (resend)
The NXP LPC32XX processor use the same watchdog as the Philips
PNX4008 processor.

Signed-off-by: Kevin Wells <wellsk40@gmail.com>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-09-15 18:43:58 +00:00
Mika Westerberg 0e901bed4e watchdog: ts72xx_wdt: disable watchdog at probe
Since it may be already enabled by bootloader or some other utility. This patch
makes sure that the watchdog is disabled before any userspace daemon opens the
device. It is also required by the watchdog API.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-09-15 18:43:52 +00:00
Akinobu Mita ae44855ae8 watchdog: sb_wdog: release irq and reboot notifier in error path and module_exit()
irq and reboot notifier are acquired in module_init() but never released.
They should be released correctly, otherwise reloading the module or error
during module_init() will cause a problem.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Andrew Sharp <andy.sharp@lsi.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-09-15 18:43:47 +00:00
dann frazier 86ded1f35d watchdog: hpwdt (12/12): Make NMI decoding a compile-time option
hpwdt is quite functional without the NMI decoding feature.
This change lets users disable the NMI portion at compile-time
via the new HPWDT_NMI_DECODING config option.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-08-13 20:54:53 +00:00
dann frazier 2ec7ed67dc watchdog: hpwdt (11/12): move NMI-decoding init and exit to seperate functions
Move NMI-decoding initialisation and exit code to seperate functions so that
we can ifdef-out parts of it in the future.

Also, this is for a device, so let's use dev_info instead of printk.
    
Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-08-13 20:54:52 +00:00
dann frazier 34572b29dd watchdog: hpwdt (10/12): Use "decoding" instead of "sourcing"
The term "decoding" more clearly explains what hpwdt is doing. It isn't
just finding the source of the interrupt, but rather aids in decoding what
the interrupt means.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-08-13 20:54:50 +00:00
dann frazier 243066bad7 watchdog: hpwdt (9/12): hpwdt_pretimeout reorganization
Reorganize this function to remove excess indentation and highlight
the single return code. (No functional change).

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-08-13 20:54:48 +00:00
dann frazier aae67f3602 watchdog: hpwdt (8/12): implement WDIOC_GETTIMELEFT
Let applications check the amount of time left before the watchdog will fire.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-08-13 20:54:46 +00:00
dann frazier 6f681c2eab watchdog: hpwdt (7/12): allow full range of timer values supported by hardware
The hpwdt timer is a 16 bit value with 128ms resolution.
Let applications use this entire range.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-08-13 20:54:42 +00:00
dann frazier e802e32d2b watchdog: hpwdt (6/12): Introduce SECS_TO_TICKS() macro
Define a macro to convert from seconds to timer ticks.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-08-13 20:54:39 +00:00
dann frazier 6b7f3d5321 watchdog: hpwdt (5/12): Make x86 assembly ifdef guard more strict
The 32-bit assembly is guarded by an #ifndef CONFIG_X86_64. Kconfig prevents
us from building this driver on !X86, so that happens to suffice - but we
should really lock it down to #ifdef CONFIG_X86_32.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-08-13 20:54:37 +00:00
dann frazier 36e3ff44ce watchdog: hpwdt (4/12): Despecificate driver from iLO2
This driver supports both iLO2 and iLO3, but our user-visible strings
currently only reference iLO2. Let's just call it "iLO2+" to avoid having
to update strings for each iLO generation. This driver doesn't support
iLO ASICs prior to iLO2, but that is sufficiently explained in Kconfig.

Signed-off-by: dann frazier <dannf@hp.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-08-13 20:54:35 +00:00