On Mon, Oct 04, 2021 at 03:15:17PM -0400, Sean Anderson wrote:

This adds a function to set the PCS only if there is not one currently
set. The intention here is to allow MAC drivers to have a "default" PCS
(such as an internal one) which may be used when one has not been set
via the device tree. This allows for backwards compatibility for cases
where a PCS was automatically attached if necessary.

I'm not sure I entirely like this approach. Why can't the network
driver check for the pcs-handle property and avoid using its
"default" if present?

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