Re: [PATCH 1/5] Documentation: DT: Add optional 'timeout-sec' property for sp805

[Robin Murphy]

On 22/05/18 19:47, Ray Jui wrote:
> Update the SP805 binding document to add optional 'timeout-sec'
> devicetree property
>
> Signed-off-by: Ray Jui <ray.jui@xxxxxxxxxxxx>
> Reviewed-by: Scott Branden <scott.branden@xxxxxxxxxxxx>
> ---
>   Documentation/devicetree/bindings/watchdog/sp805-wdt.txt | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt b/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt
> index edc4f0e..f898a86 100644
> --- a/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt
> +++ b/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt
> @@ -19,6 +19,8 @@ Required properties:
>   
>   Optional properties:
>   - interrupts : Should specify WDT interrupt number.
> +- timeout-sec : Should specify default WDT timeout in seconds. If unset, the
> +                default timeout is 30 seconds

According to the SP805 TRM, the default interval is dependent on the 
rate of WDOGCLK, but would typically be a lot longer than that :/

On a related note, anyone have any idea why we seem to have two subtly 
different SP805 bindings defined?

Robin.

>   
>   Examples:
>