linux-toradex.git/drivers/watchdog, branch v4.1.13

watchdog: sunxi: fix activation of system reset

2015-10-22T21:43:12+00:00

commit 0919e4445190da18496d31aac08b90828a47d45f upstream.

Commit f2147de33470 ("watchdog: sunxi: support parameterized compatible
strings") introduced a regression in sunxi_wdt_start(), by which
the system reset function of the watchdog is not enabled upon
starting the watchdog. As a result, the system is not reset when the
watchdog expires. Fix it.

Fixes: f2147de33470 ("watchdog: sunxi: support parameterized compatible strings")
Signed-off-by: Francesco Lavra 
Acked-by: Maxime Ripard 
Reviewed-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck 
Signed-off-by: Greg Kroah-Hartman

watchdog: omap: assert the counter being stopped before reprogramming

2015-08-03T16:29:16+00:00

commit 530c11d432727c697629ad5f9d00ee8e2864d453 upstream.

The omap watchdog has the annoying behaviour that writes to most
registers don't have any effect when the watchdog is already running.
Quoting the AM335x reference manual:

	To modify the timer counter value (the WDT_WCRR register),
	prescaler ratio (the WDT_WCLR[4:2] PTV bit field), delay
	configuration value (the WDT_WDLY[31:0] DLY_VALUE bit field), or
	the load value (the WDT_WLDR[31:0] TIMER_LOAD bit field), the
	watchdog timer must be disabled by using the start/stop sequence
	(the WDT_WSPR register).

Currently the timer is stopped in the .probe callback but still there
are possibilities that yield to a situation where omap_wdt_start is
entered with the timer running (e.g. when /dev/watchdog is closed
without stopping and then reopened). In such a case programming the
timeout silently fails!

To circumvent this stop the timer before reprogramming.

Assuming one of the first things the watchdog user does is setting the
timeout explicitly nothing too bad should happen because this explicit
setting works fine.

Fixes: 7768a13c252a ("[PATCH] OMAP: Add Watchdog driver support")
Signed-off-by: Uwe Kleine-König 
Reviewed-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck 
Signed-off-by: Greg Kroah-Hartman

Merge git://www.linux-watchdog.org/linux-watchdog

2015-04-22T18:22:55+00:00

Pull watchdog updates from Wim Van Sebroeck:
 "This contains following changes:

   - Octeon: convert to watchdog-API and apply some fixes
   - Cadence wdt: remove dependency on ARCH
   - add DT bindings for qcom + msm
   - bcm281xx: Remove use of seq_printf return value
   - stmp3xxx_rtc_wdt + pnx4008_wdt: fix broken email addresses"

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: stmp3xxx_rtc_wdt: fix broken email address
  watchdog: pnx4008_wdt: fix broken email address
  watchdog: octeon: use fixed length string for register names
  watchdog: octeon: fix some trivial coding style issues
  watchdog: octeon: convert to WATCHDOG_CORE API
  watchdog: cadence: Remove Kconfig dependency on ARCH
  ARM: msm: add watchdog entries to DT timer binding doc
  ARM: qcom: add description of KPSS WDT for IPQ8064
  watchdog: qcom: use timer devicetree binding
  watchdog: bcm281xx: Remove use of seq_printf return value

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2015-04-22T16:18:17+00:00

Pull ARM SoC driver updates from Olof Johansson:
 "Driver updates for v4.1.  Some of these are for drivers/soc, where we
  find more and more SoC-specific drivers these days.  Some are for
  other driver subsystems where we have received acks from the
  appropriate maintainers.

  The larger parts of this branch are:

   - MediaTek support for their PMIC wrapper interface, a high-level
     interface for talking to the system PMIC over a dedicated I2C
     interface.

   - Qualcomm SCM driver has been moved to drivers/firmware.  It's used
     for CPU up/down and needs to be in a shared location for arm/arm64
     common code.

   - cleanup of ARM-CCI PMU code.

   - another set of cleanusp to the OMAP GPMC code"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits)
  soc/mediatek: Remove unused variables
  clocksource: atmel-st: select MFD_SYSCON
  soc: mediatek: Add PMIC wrapper for MT8135 and MT8173 SoCs
  arm-cci: Fix CCI PMU event validation
  arm-cci: Split the code for PMU vs driver support
  arm-cci: Get rid of secure transactions for PMU driver
  arm-cci: Abstract the CCI400 PMU specific definitions
  arm-cci: Rearrange code for splitting PMU vs driver code
  drivers: cci: reject groups spanning multiple HW PMUs
  ARM: at91: remove useless include
  clocksource: atmel-st: remove mach/hardware dependency
  clocksource: atmel-st: use syscon/regmap
  ARM: at91: time: move the system timer driver to drivers/clocksource
  ARM: at91: properly initialize timer
  ARM: at91: at91rm9200: remove deprecated arm_pm_restart
  watchdog: at91rm9200: implement restart handler
  watchdog: at91rm9200: use the system timer syscon
  mfd: syscon: Add atmel system timer registers definition
  ARM: at91/dt: declare atmel,at91rm9200-st as a syscon
  soc: qcom: gsbi: Add support for ADM CRCI muxing
  ...

watchdog: stmp3xxx_rtc_wdt: fix broken email address

2015-04-22T13:30:45+00:00

My Pengutronix address is not valid anymore, redirect people to the Pengutronix
kernel team.

Reported-by: Harald Geyer 
Signed-off-by: Wolfram Sang 
Acked-by: Robert Schwebel 
Signed-off-by: Wim Van Sebroeck

watchdog: pnx4008_wdt: fix broken email address

2015-04-22T13:30:41+00:00

My Pengutronix address is not valid anymore, redirect people to the Pengutronix
kernel team.

Reported-by: Harald Geyer 
Signed-off-by: Wolfram Sang 
Acked-by: Robert Schwebel 
Signed-off-by: Wim Van Sebroeck

watchdog: octeon: use fixed length string for register names

2015-04-22T13:28:40+00:00

Use fixed length string for register names. This saves 416 bytes
in text size.

Signed-off-by: Aaro Koskinen 
Reviewed-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: octeon: fix some trivial coding style issues

2015-04-22T13:28:35+00:00

Fix some trivial coding style issues to reduce noise from static analyzers.

Signed-off-by: Aaro Koskinen 
Reviewed-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: octeon: convert to WATCHDOG_CORE API

2015-04-22T13:28:31+00:00

Convert OCTEON watchdog to WATCHDOG_CORE API. This enables support
for multiple watchdogs on OCTEON boards.

Signed-off-by: Aaro Koskinen 
Reviewed-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: cadence: Remove Kconfig dependency on ARCH

2015-04-22T13:28:21+00:00

Remove Kconfig dependency and enable driver for
all ARCHs.

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