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The latter doesn't need to be described in the device tree, because it is discoverable from the SerDes lanes. The media type that is deployed on the link is not discoverable though, so the introduction of a fsl,backplane-mode boolean property appears necessary to determine whether the AN/LT block should be employed, or left bypassed. Signed-off-by: Vladimir Oltean --- v1->v2: patch is new .../devicetree/bindings/net/pcs/fsl,lynx-pcs.yaml | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/net/pcs/fsl,lynx-pcs.yaml b/Documentation/devicetree/bindings/net/pcs/fsl,lynx-pcs.yaml index fbedf696c555..40fbcd80ee2a 100644 --- a/Documentation/devicetree/bindings/net/pcs/fsl,lynx-pcs.yaml +++ b/Documentation/devicetree/bindings/net/pcs/fsl,lynx-pcs.yaml @@ -16,11 +16,24 @@ description: | properties: compatible: - const: fsl,lynx-pcs + enum: + - fsl,lx2160a-lynx-pcs + - fsl,lynx-pcs reg: maxItems: 1 + phys: + maxItems: 4 + description: + phandle for the SerDes lanes that act as PMA/PMD layer when the PCS is + part of a copper backplane PHY. + + fsl,backplane-mode: + $ref: /schemas/types.yaml#/definitions/flag + description: + Indicates that the PCS is deployed over a copper backplane link. + required: - compatible - reg