netdev - Re: [PATCH v8 net-next 4/4] net: axiemac: use a phandle to reference pcs

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Date:   Tue, 5 Apr 2022 14:18:52 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Andy Chiu <andy.chiu@...ive.com>
Cc:     davem@...emloft.net, michal.simek@...inx.com,
        radhey.shyam.pandey@...inx.com, kuba@...nel.org, pabeni@...hat.com,
        robh+dt@...nel.org, krzk+dt@...nel.org, linux@...linux.org.uk,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        Greentime Hu <greentime.hu@...ive.com>,
        Robert Hancock <robert.hancock@...ian.com>
Subject: Re: [PATCH v8 net-next 4/4] net: axiemac: use a phandle to reference
 pcs_phy

On Tue, Apr 05, 2022 at 05:19:29PM +0800, Andy Chiu wrote:
> In some SGMII use cases where both a fixed link external PHY and the
> internal PCS/PMA PHY need to be configured, we should explicitly use a
> phandle "pcs-phy" to get the reference to the PCS/PMA PHY. Otherwise, the
> driver would use "phy-handle" in the DT as the reference to both the
> external and the internal PCS/PMA PHY.
> 
> In other cases where the core is connected to a SFP cage, we could still
> point phy-handle to the intenal PCS/PMA PHY, and let the driver connect
> to the SFP module, if exist, via phylink.
> 
> Signed-off-by: Andy Chiu <andy.chiu@...ive.com>
> Reviewed-by: Greentime Hu <greentime.hu@...ive.com>
> Reviewed-by: Robert Hancock <robert.hancock@...ian.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew