Re: [PATCH net-next v16 01/15] dt-bindings: net: Introduce the ethernet-connector description

From: Andrew Lunn

Date: Thu Nov 13 2025 - 08:12:08 EST


On Thu, Nov 13, 2025 at 09:14:03AM +0100, Maxime Chevallier wrote:
> The ability to describe the physical ports of Ethernet devices is useful
> to describe multi-port devices, as well as to remove any ambiguity with
> regard to the nature of the port.
>
> Moreover, describing ports allows for a better description of features
> that are tied to connectors, such as PoE through the PSE-PD devices.
>
> Introduce a binding to allow describing the ports, for now with 2
> attributes :
>
> - The number of pairs, which is a quite generic property that allows
> differentating between multiple similar technologies such as BaseT1
> and "regular" BaseT (which usually means BaseT4).
>
> - The media that can be used on that port, such as BaseT for Twisted
> Copper, BaseC for coax copper, BaseS/L for Fiber, BaseK for backplane
> ethernet, etc. This allows defining the nature of the port, and
> therefore avoids the need for vendor-specific properties such as
> "micrel,fiber-mode" or "ti,fiber-mode".
>
> The port description lives in its own file, as it is intended in the
> future to allow describing the ports for phy-less devices.
>
> Signed-off-by: Maxime Chevallier <maxime.chevallier@xxxxxxxxxxx>

Reviewed-by: Andrew Lunn <andrew@xxxxxxx>

Andrew