netdev - Re: [PATCH devicetree 2/2] dt-bindings: phy: Add `tx-amplitude-microvolt` property binding

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Message-ID: <YbnJhI2Z3lwC3vF9@lunn.ch>
Date:   Wed, 15 Dec 2021 11:55:00 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Marek Behún <kabel@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        Vladimir Oltean <olteanv@...il.com>,
        Holger Brunck <holger.brunck@...achienergy.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Russell King <rmk+kernel@...linux.org.uk>,
        linux-phy@...ts.infradead.org, Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...com>
Subject: Re: [PATCH devicetree 2/2] dt-bindings: phy: Add
 `tx-amplitude-microvolt` property binding

On Wed, Dec 15, 2021 at 12:34:32AM +0100, Marek Behún wrote:
> Common PHYs often have the possibility to specify peak-to-peak voltage
> on the differential pair - the default voltage sometimes needs to be
> changed for a particular board.

Hi Marek

Common PHYs are not the only user of this. Ethernet PHYs can also use
it, as well as SERDESes embedded within Ethernet switches.

That is why i suggested these properties go into something like
serdes.yaml. That can then be included into Common PHY, Ethernet PHYs,
switch drivers etc.

Please could you make such a split?

       Andrew