On Tue, Dec 16, 2025 at 01:17:00PM +0100, A. Sverdlin wrote:
> From: Alexander Sverdlin <alexander.sverdlin@siemens.com>
>
> Add new maxlinear,mii-slew-rate-slow boolean property. This property is
> only applicable for ports in R(G)MII mode and allows for slew rate
> reduction in comparison to "normal" default configuration with the purpose
> to reduce radiated emissions.
>
> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
> ---
> Changelog:
> v2:
> - unchanged
>
> Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml b/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml
> index 205b683849a53..6cd5c6152c9e9 100644
> --- a/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml
> +++ b/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml
> @@ -106,6 +106,11 @@ patternProperties:
> unevaluatedProperties: false
>
> properties:
> + maxlinear,mii-slew-rate-slow:
I would just reuse the pinctrl "slew-rate" property here. The values are
binding specific.
> + type: boolean
> + description:
> + Configure R(G)MII TXD/TXC pads' slew rate to "slow" instead
> + of "normal" to reduce radiated emissions.
> maxlinear,rmii-refclk-out:
> type: boolean
> description:
> --
> 2.52.0
>