Introduce `mdio-parent-bus` property in the ksz DSA bindings to reference the parent MDIO bus when the internal MDIO bus is attached to it, bypassing the main management interface. Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx> Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx> Reviewed-by: Andrew Lunn <andrew@xxxxxxx> --- .../devicetree/bindings/net/dsa/microchip,ksz.yaml | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml b/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml index a4e463819d4d7..121a4bbd147be 100644 --- a/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml +++ b/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml @@ -84,6 +84,15 @@ properties: mdio: $ref: /schemas/net/mdio.yaml# unevaluatedProperties: false + properties: + mdio-parent-bus: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle pointing to the MDIO bus controller connected to the + secondary MDIO interface. This property should be used when + the internal MDIO bus is accessed via a secondary MDIO + interface rather than the primary management interface. + patternProperties: "^ethernet-phy@[0-9a-f]$": type: object -- 2.39.5