linux-toradex.git/drivers/watchdog, branch v3.11

Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

2013-07-13T21:52:21+00:00

Pull MIPS updates from Ralf Baechle:
 "MIPS updates:

   - All the things that didn't make 3.10.
   - Removes the Windriver PPMC platform.  Nobody will miss it.
   - Remove a workaround from kernel/irq/irqdomain.c which was there
     exclusivly for MIPS.  Patch by Grant Likely.
   - More small improvments for the SEAD 3 platform
   - Improvments on the BMIPS / SMP support for the BCM63xx series.
   - Various cleanups of dead leftovers.
   - Platform support for the Cavium Octeon-based EdgeRouter Lite.

  Two large KVM patchsets didn't make it for this pull request because
  their respective authors are vacationing"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (124 commits)
  MIPS: Kconfig: Add missing MODULES dependency to VPE_LOADER
  MIPS: BCM63xx: CLK: Add dummy clk_{set,round}_rate() functions
  MIPS: SEAD3: Disable L2 cache on SEAD-3.
  MIPS: BCM63xx: Enable second core SMP on BCM6328 if available
  MIPS: BCM63xx: Add SMP support to prom.c
  MIPS: define write{b,w,l,q}_relaxed
  MIPS: Expose missing pci_io{map,unmap} declarations
  MIPS: Malta: Update GCMP detection.
  Revert "MIPS: make CAC_ADDR and UNCAC_ADDR account for PHYS_OFFSET"
  MIPS: APSP: Remove 
  SSB: Kconfig: Amend SSB_EMBEDDED dependencies
  MIPS: microMIPS: Fix improper definition of ISA exception bit.
  MIPS: Don't try to decode microMIPS branch instructions where they cannot exist.
  MIPS: Declare emulate_load_store_microMIPS as a static function.
  MIPS: Fix typos and cleanup comment
  MIPS: Cleanup indentation and whitespace
  MIPS: BMIPS: support booting from physical CPU other than 0
  MIPS: Only set cpu_has_mmips if SYS_SUPPORTS_MICROMIPS
  MIPS: GIC: Fix gic_set_affinity infinite loop
  MIPS: Don't save/restore OCTEON wide multiplier state on syscalls.
  ...

Merge branch '3.10-fixes' into mips-for-linux-next

2013-07-12T16:11:43+00:00

This that should have been fixed but weren't, way to much, intrusive
and late.

watchdog: hpwdt: Add check for UEFI bits

2013-07-11T20:20:06+00:00

This patch is being created to use the UEFI bits in the type 219 SMBIOS
record in order to decide whether or not to execute BIOS code. This is a
better solution than to depend on the iCRU bit since not all future servers
will use iCRU.

Signed-off-by: Thomas Mingarelli 
Signed-off-by: Wim Van Sebroeck 
----
drivers/watchdog/hpwdt.c |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

watchdog: softdog: remove replaceable ping operation

2013-07-11T20:19:30+00:00

In watchdog_ping(), 'start' is called automatically when 'ping' function call
is not configured.
Softdog driver has same handling in both cases - start and ping, so 'ping' OPS
can be removed.

Signed-off-by: Milo(Woogyom) Kim 
Signed-off-by: Wim Van Sebroeck

watchdog: New watchdog driver for MEN A21 watchdogs

2013-07-11T20:19:05+00:00

This patch adds the driver for the watchdog devices found on MEN Mikro
Elektronik A21 VMEbus CPU Carrier Boards. It has DT-support and uses the
watchdog framework.

Signed-off-by: Johannes Thumshirn 
Reviewed-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

Watchdog: fix clearing of the watchdog interrupt

2013-07-11T20:18:30+00:00

The bits in BRIDGE_CAUSE are documented as RW0C - read, write 0 to
clear.  If we read the register, mask off the watchdog bit, and
write it back, we're actually clearing every interrupt which wasn't
pending at the time we read the register - and that is racy.

Fix this to only write ~WATCHDOG_BIT to the register, which means
we write as zero only the watchdog bit.

Signed-off-by: Russell King 
Acked-by: Jason Cooper 
Tested-by: Andrew Lunn 
Signed-off-by: Wim Van Sebroeck

Watchdog: allow orion_wdt to be built for Dove

2013-07-11T20:17:56+00:00

The watchdog infrastructure in Dove is no different from that in
Orion5x or Kirkwood, so let's enable it for Dove.  The only things
missing are a few register settings in Dove's bridge-regs.h.

Rather than duplicating the same register bit masks for the RSTOUTn_MASK
and BRIDGE_CAUSE registers, move the definitions into the watchdog
driver itself.

Signed-off-by: Russell King 
Acked-by: Jason Cooper 
Tested-by: Andrew Lunn 
Signed-off-by: Wim Van Sebroeck

watchdog: Add Broadcom BCM2835 watchdog timer driver

2013-07-11T20:17:30+00:00

This adds a driver for watchdog timer hardware present on Broadcom BCM2835 SoC,
used in Raspberry Pi and Roku 2 devices.

Signed-off-by: Lubomir Rintel 
Tested-by: Stephen Warren 
Reviewed-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck 
Cc: linux-rpi-kernel@lists.infradead.org
Cc: linux-watchdog@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org

watchdog: delete mpcore_wdt driver

2013-07-11T19:47:58+00:00

Interrupt request doesn't use the right API: The TWD watchdog uses a per-cpu
interrupt (usually interrupt #30), and the GIC configuration should flag it as
such. With this setup, request_irq() should fail, and the right API is
request_percpu_irq(), together with enable_percpu_irq()/disable_percpu_irq().

Nothing ensures the userspace ioctl() will end-up kicking the watchdog on the
right CPU.

There are no users of this driver since a long time and it makes more sense to
get rid of it as nobody is looking to fix it.

In case somebody wakes up after this has been removed and needs it, please
revert this driver and pick these updates (These were never pushed to mainline):

http://comments.gmane.org/gmane.linux.ports.arm.kernel/245998

Signed-off-by: Viresh Kumar 
Acked-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: xilinx: Setup the origin compatible string

2013-07-11T19:47:22+00:00

Watchdog 1.01.a is also compatible with 1.00.a.
Add the origin version to compatible list.

Signed-off-by: Michal Simek 
Reviewed-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck