netdev - Re: [v3 2/2] dsa: mv88e6xxx: make serdes SGMII/Fiber output amplitude configurable

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Message-ID: <YbDkldWhZNDRkZDO@lunn.ch>
Date:   Wed, 8 Dec 2021 18:00:05 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Marek Behún <kabel@...nel.org>
Cc:     Holger Brunck <holger.brunck@...achienergy.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Jakub Kicinski <kuba@...nel.org>
Subject: Re: [v3 2/2] dsa: mv88e6xxx: make serdes SGMII/Fiber output
 amplitude configurable

> Or maybe two properties:
>   serdes-tx-amplitude-millivolt = <700 1000 1100>;
>   serdes-tx-amplitude-modes = "sgmii", "2500base-x", "10gbase-r";

I think this is good. But you are missing the DT email list from Cc:
You need Robs input.

We probably should list the accepted mode values somehow. I don't know
if we can reference ethernet-controller.yaml : phy-connection-type, or
if we need a new list. This gets interesting when PCIe and USB needs
to use this property, what names are used, and if it is possible to
combine two different lists?

	Andrew