linux-stable.git/drivers/watchdog, branch linux-4.5.y

watchdog: sp5100_tco: properly check for new register layouts

2016-06-01T19:17:02+00:00

commit 46856fabe40cc80f92134683cdec7dc0fc8f4000 upstream.

Commits 190aa4304de6 (Add AMD Mullins platform support) and
cca118fa2a0a94 (Add AMD Carrizo platform support) enabled the
driver on a lot more devices, but the following commit missed
a single location in the code when checking if the SB800 register
offsets should be used. This leads to the wrong register being
written which in turn causes ACPI to go haywire.

Fix this by introducing a helper function to check for the new
register layout and use this consistently.

https://bugzilla.kernel.org/show_bug.cgi?id=114201
https://bugzilla.redhat.com/show_bug.cgi?id=1329910
Fixes: bdecfcdb5461 (sp5100_tco: fix the device check for SB800
and later chipsets)
Signed-off-by: Lucas Stach 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck 
Signed-off-by: Greg Kroah-Hartman

watchdog: rc32434_wdt: fix ioctl error handling

2016-04-12T14:33:36+00:00

commit 10e7ac22cdd4d211cef99afcb9371b70cb175be6 upstream.

Calling return copy_to_user(...) in an ioctl will not do the right thing
if there's a pagefault: copy_to_user returns the number of bytes not
copied in this case.

Fix up watchdog/rc32434_wdt to do
	return copy_to_user(...)) ?  -EFAULT : 0;

instead.

Signed-off-by: Michael S. Tsirkin 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck 
Signed-off-by: Greg Kroah-Hartman

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

2016-03-01T16:57:34+00:00

Pull sparc fixes from David Miller:

 1) System call tracing doesn't handle register contents properly across
    the trace.  From Mike Frysinger.

 2) Hook up copy_file_range

 3) Build fix for 32-bit with newer tools.

 4) New sun4v watchdog driver, from Wim Coekaerts.

 5) Set context system call has to allow for servicable faults when we
    flush the register windows to memory

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Fix sparc64_set_context stack handling.
  sparc32: Add -Wa,-Av8 to KBUILD_CFLAGS.
  Add sun4v_wdt watchdog driver
  sparc: Fix system call tracing register handling.
  sparc: Hook up copy_file_range syscall.

Add sun4v_wdt watchdog driver

2016-01-31T19:06:24+00:00

This driver adds sparc hypervisor watchdog support. The default
timeout is 60 seconds and the range is between 1 and
31536000 seconds. Both watchdog-resolution and
watchdog-max-timeout MD properties settings are supported.

Signed-off-by: Wim Coekaerts 
Reviewed-by: Julian Calaby 
Reviewed-by: Guenter Roeck 
Signed-off-by: David S. Miller

watchdog: Fix dependencies for !HAS_IOMEM archs

2016-01-31T15:54:36+00:00

Not every arch has io memory.
So, unbreak the build by fixing the dependencies.

Signed-off-by: Richard Weinberger 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: imgdpc: select WATCHDOG_CORE

2016-01-31T15:52:56+00:00

The imgpdc_wdt driver can be built on all architectures with
CONFIG_COMPILE_TEST, but fails if no other watchdog driver is
enabled:

drivers/watchdog/built-in.o: In function `pdc_wdt_remove':
imgpdc_wdt.c:(.text+0x74): undefined reference to `watchdog_unregister_device'

This adds the normal 'select WATCHDOG_CORE' that is needed to
ensure the driver always builds cleanly.

Signed-off-by: Arnd Bergmann 
Reviewed-by: James Hogan 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: tango: rename ARCH_TANGOX to ARCH_TANGO

2016-01-31T15:52:29+00:00

This change was requested by arm-soc maintainer Kevin Hilman
because the X in TANGOX is a wildcard.

Signed-off-by: Marc Gonzalez 
Acked-by: Mans Rullgard 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: pcwd_usb: fix compilation warning

2016-01-31T15:52:15+00:00

In function ‘usb_pcwd_probe’:
drivers/watchdog/pcwd_usb.c:611:12: warning: variable ‘maxp’ set but not
used [-Wunused-but-set-variable]
  int pipe, maxp;

Signed-off-by: Tomas Winkler 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: sp805: ping fails to abort wdt reset

2016-01-31T15:52:08+00:00

sp805 wdt asserts interrupt for the first expiry and
reloads the counter. If wdt interrupt is set and count
reaches zero then wdt reset event is generated. To get
wdt reset at 't' timeout the driver loads wdt counter
with 't/2'. A ping before time 't'  *should* prevent
wdt reset. Currently if ping is done after 't/2' then
wdt interrupt condition gets set. On the next countdown
of loadval wdt reset event occurs eventhough wdt was
reloaded before the set timeout 't'.

This patch clears the interrupt condition on ping.

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

watchdog: max63xx: make module's license marker match the header

2016-01-31T15:51:56+00:00

The header specifies GPL version 2 only, so make the MODULE_LICENSE
string use the respective string for that.

Signed-off-by: Uwe Kleine-König 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck