From: Alexander Sverdlin Date: Wed, 14 Jan 2026 10:45:03 +0000 (+0100) Subject: dt-bindings: net: dsa: lantiq,gswip: add MaxLinear R(G)MII slew rate X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4cc265663da54944b22fa012e506592eab146388;p=thirdparty%2Fkernel%2Flinux.git dt-bindings: net: dsa: lantiq,gswip: add MaxLinear R(G)MII slew rate Add new maxlinear,slew-rate-txc and maxlinear,slew-rate-txd uint32 properties. The properties are only applicable for ports in R(G)MII mode and allow for slew rate reduction in comparison to "normal" default configuration with the purpose to reduce radiated emissions. Signed-off-by: Alexander Sverdlin Reviewed-by: Rob Herring (Arm) Link: https://patch.msgid.link/20260114104509.618984-2-alexander.sverdlin@siemens.com Signed-off-by: Jakub Kicinski --- diff --git a/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml b/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml index 205b683849a53..37d64b8a76ac7 100644 --- a/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml +++ b/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml @@ -106,6 +106,28 @@ patternProperties: unevaluatedProperties: false properties: + maxlinear,slew-rate-txc: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1] + description: | + RMII/RGMII TX Clock Slew Rate: + + 0: Normal + 1: Slow + + If not present, the configuration made by the switch bootloader is + preserved. + maxlinear,slew-rate-txd: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1] + description: | + RMII/RGMII TX Non-Clock PAD Slew Rate: + + 0: Normal + 1: Slow + + If not present, the configuration made by the switch bootloader is + preserved. maxlinear,rmii-refclk-out: type: boolean description: