On Fri, May 05, 2017 at 03:32:59PM -0400, Sebastien Bourdelin wrote: > This watchdog is instantiated in a FPGA and can only be access using a > GPIOs bit-banged bus, called the NBUS by Technologic Systems. > The watchdog is made of only one register, called the feed register. > Writing to this register will re-arm the watchdog for a given time (and > enable it if it was disable). It can be disabled by writing a special > value into it. > > Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@xxxxxxxxxxxxxxxxxxxx> > --- > Changes v2 -> v3: > - rebase on master > - remove the timeout table to simplify the logic (suggested by > Guenter Roeck) > - fix the set_timeout function (suggested by Guenter Roeck) > - hardcode the max_hw_heartbeat_ms value based on the ts4600 max > timeout value supported (suggested by Guenter Roeck) > - remove the max_timeout usage and set a default timeout value > (suggested by Guenter Roeck) > - use the devm_watchdog_register_device function instead of > watchdog_register_device (suggested by Guenter Roeck) > > Changes v1 -> v2: > - rebase on master > - retrieve the ts_nbus instantiated by the parent node (suggested by > Linus Walleij) > - rename the wdt by watchdog in the device tree and in the > documentation (suggested by Rob Herring) > - add a dependency to the TS_NBUS driver in the Kconfig (suggested by > Guenter Roeck) > - simplify the set_timeout function (suggested by Guenter Roeck) > - use the max_hw_heartbeat_ms callback instead of the max_timeout > callback (suggested by Guenter Roeck) > --- > .../devicetree/bindings/watchdog/ts4600-wdt.txt | 16 ++ > arch/arm/boot/dts/imx28-ts4600-common.dtsi | 5 + The dts change shouldn't be mixed within driver patch. Shawn > drivers/watchdog/Kconfig | 11 ++ > drivers/watchdog/Makefile | 1 + > drivers/watchdog/ts4600_wdt.c | 185 +++++++++++++++++++++ > 5 files changed, 218 insertions(+) > create mode 100644 Documentation/devicetree/bindings/watchdog/ts4600-wdt.txt > create mode 100644 drivers/watchdog/ts4600_wdt.c -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
