netdev - Re: [PATCH] Documentation: net: phy: improve explanation when to specify the PHY ID

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Message-ID: <20170122165704.GB26560@lunn.ch>
Date:   Sun, 22 Jan 2017 17:57:04 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc:     devicetree@...r.kernel.org, netdev@...r.kernel.org,
        davem@...emloft.net, f.fainelli@...il.com, mark.rutland@....com,
        robh+dt@...nel.org
Subject: Re: [PATCH] Documentation: net: phy: improve explanation when to
 specify the PHY ID

On Sun, Jan 22, 2017 at 05:41:32PM +0100, Martin Blumenstingl wrote:
> The old description basically read like "ethernet-phy-idAAAA.BBBB" can
> be specified when you know the actual PHY ID. However, specifying this
> has a side-effect: it forces Linux to bind to a certain PHY driver (the
> one that matches the ID given in the compatible string), ignoring the ID
> which is reported by the actual PHY.
> Whenever a device is shipped with (multiple) different PHYs during it's
> production lifetime then explicitly specifying
> "ethernet-phy-idAAAA.BBBB" could break certain revisions of that device.
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>

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

Thanks
    Andrew