[PATCH 1/5] dt-bindings: fsi: Document gpios

[Andrew Jeffery]

On Tue, 28 Jul 2020, at 12:25, Joel Stanley wrote:
> The FSI master has some associated GPIOs that may be present on some
> hardware configurations.
> 
> Signed-off-by: Joel Stanley <joel at jms.id.au>
> ---
>  .../devicetree/bindings/fsi/fsi-master-aspeed.txt    | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git 
> a/Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt 
> b/Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt
> index b758f91914f7..a513e65ec0c9 100644
> --- a/Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt
> +++ b/Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt
> @@ -12,6 +12,13 @@ Required properties:
>   - pinctrl-0: phandle to pinctrl node
>   - pinctrl-names: pinctrl state
>  
> +Optional properties:
> + - cfam-reset-gpios: GPIO for CFAM reset
> +
> + - fsi-routing-gpios: GPIO for setting the FSI mux (internal or cabled)
> + - fsi-mux-gpios: GPIO for detecting the desired FSI mux state
> +
> +

Is the double-linebreak intentional? Anyway:

Reviewed-by: Andrew Jeffery <andrew at aj.id.au>

>  Examples:
>  
>      fsi-master {
> @@ -21,4 +28,9 @@ Examples:
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&pinctrl_fsi1_default>;
>  	clocks = <&syscon ASPEED_CLK_GATE_FSICLK>;
> +
> +	fsi-routing-gpios = <&gpio0 ASPEED_GPIO(Q, 7) GPIO_ACTIVE_HIGH>;
> +	fsi-mux-gpios = <&gpio0 ASPEED_GPIO(B, 0) GPIO_ACTIVE_HIGH>;
> +
> +	cfam-reset-gpios = <&gpio0 ASPEED_GPIO(Q, 0) GPIO_ACTIVE_LOW>;
>      };
> -- 
> 2.27.0
> 
>