On Fri, Mar 02, 2018 at 05:07:45PM +1030, Joel Stanley wrote:
> These bindings describe the watchdog IP as used by the Nuvoton NPCM750
> (Poleg) BMC SoC.
> 
> Signed-off-by: Joel Stanley <j...@jms.id.au>
> ---
>  .../bindings/watchdog/nuvoton,npcm-wdt.txt         | 25 
> ++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
>  create mode 100644 
> Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt 
> b/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
> new file mode 100644
> index 000000000000..599db288337e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
> @@ -0,0 +1,25 @@
> +Nuvoton NPCM Watchdog
> +
> +Nuvoton NPCM timer module provides five 24-bit timer counters, and a 
> watchdog.
> +The watchdog supports a pre-timeout interrupt that fires 10ms before the
> +expiry.
> +
> +Required properties:
> +- compatible      : "nuvoton,npcm750-wdt" for NPCM750 (Poleg).
> +- reg             : Offset and length of the register set for the device.
> +- interrupts      : Contain the timer interrupt with flags for
> +                    falling edge.
> +
> +Required clocking property, have to be one of:
> +- clocks          : phandle of timer reference clock.
> +- clock-frequency : The frequency in Hz of the clock that drives the NPCM7xx
> +                    timer (usually 25000000).

Optional properties:
- timeout-sec : Contains the watchdog timeout in seconds

watchdog_init_timeout() will fix this for you.
> +
> +Example:
> +
> +timer@f00080c1 {
> +    compatible = "nuvoton,npcm750-wdt";
> +    interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
> +    reg = <0xf00080c1 0x4>;
> +    clocks = <&clk NPCM7XX_CLK_TIMER>;
> +};
> -- 
> 2.15.1
> 


Best regards
Marcus Folkesson

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