linux-kernel - Re: [PATCH 2/6] net: bcmgenet: refactor phy mode configuration

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Date:   Mon, 3 Feb 2020 02:17:32 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     Jeremy Linton <jeremy.linton@....com>, netdev@...r.kernel.org,
        opendmb@...il.com, davem@...emloft.net,
        bcm-kernel-feedback-list@...adcom.com,
        linux-kernel@...r.kernel.org, wahrenst@....net,
        hkallweit1@...il.com
Subject: Re: [PATCH 2/6] net: bcmgenet: refactor phy mode configuration

On Sat, Feb 01, 2020 at 08:24:14AM -0800, Florian Fainelli wrote:
> 
> 
> On 1/31/2020 11:46 PM, Jeremy Linton wrote:
> > The DT phy mode is similar to what we want for ACPI
> > lets factor it out of the of path, and change the
> > of_ call to device_. Further if the phy-mode property
> > cannot be found instead of failing the driver load lets
> > just default it to RGMII.
> 
> Humm no please do not provide a fallback, if we cannot find a valid
> 'phy-mode' property we error out. This controller can be used with a
> variety of configurations (internal EPHY/GPHY, MoCA, external
> MII/Reverse MII/RGMII) and from a support perspective it is much easier
> for us if the driver errors out if one of those essential properties are
> omitted.

Hi Florian

Does any of the silicon variants have two or more MACs sharing one
MDIO bus? I'm thinking about the next patch in the series.

     Thanks
	Andrew