[PATCH v2 0/4] watchdog: add driver for Renesas Gen3 WDT watchdogs

[Wolfram Sang <wsa@the-dreams.de>]

Here is V2 of this series with the following changes:

* include bitops.h
* s/unsigned/unsigned int/
* drop set_timeout() because core does it already
* add get_timeleft()
* don't make "nowayout" a readable parameter
* use "watchdog" instead of "wdt" in the dt bindings

The dts and defconfig changes should go via Simon's tree once the driver is
accepted.

To use this driver, you need a recent firmware/uboot which initializes the
WDTRSTCR register which can only be changed in secure mode. 'md 0xe6160054 4'
should give you 0x8002 or something else with bit 15 set and bit 0 cleared.

Also, you need the clock enablement patches which just have been posted in
their newest version to the renesas-soc mailing list and are also in
close-to-be-applied state.

A complete branch to test can be found here:

git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/v8-wdt

Please review, test, comment...

Thanks,

   Wolfram


Wolfram Sang (4):
  watchdog: renesas-wdt: add driver
  arm64: dts: r8a7795: Add RWDT node
  arm64: dts: salvator-x: Enable watchdog timer
  arm64: defconfig: enable Renesas Watchdog Timer

 .../devicetree/bindings/watchdog/renesas-wdt.txt   |  25 +++
 arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts |   5 +
 arch/arm64/boot/dts/renesas/r8a7795.dtsi           |   8 +
 arch/arm64/configs/defconfig                       |   2 +
 drivers/watchdog/Kconfig                           |   8 +
 drivers/watchdog/Makefile                          |   1 +
 drivers/watchdog/renesas_wdt.c                     | 213 +++++++++++++++++++++
 7 files changed, 262 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/renesas-wdt.txt
 create mode 100644 drivers/watchdog/renesas_wdt.c

-- 
2.7.0