[PATCH linux dev-4.10 v2 4/4] ARM: dts: aspeed: Witherspoon WDT1 external signal is push-pull

[Matt Spinler]

On 7/26/2017 11:08 AM, Andrew Jeffery wrote:
> Correctly drive the latch asserting the FAULT pin on the MAX31785 when
> the watchdog bites. This ensures the fan outputs are ramped to 100% PWM
> duty.
>
> Signed-off-by: Andrew Jeffery <andrew at aj.id.au>
> ---
>   arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
> index c28222c17d03..df36b87ba105 100644
> --- a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
> +++ b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
> @@ -488,6 +488,7 @@
>   &wdt1 {
>   	aspeed,reset-type = "none";
>   	aspeed,external-signal;
> +	aspeed,ext-push-pull;

We need active-high for sure.  It still works without push-pull, but not 
sure if that is totally electronically ideal or not as the HW designer 
requested for this to be push-pull.

>
>   	pinctrl-names = "default";
>   	pinctrl-0 = <&pinctrl_wdtrst1_default>;