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Message-ID: <YMGPpIH0OXNS9TuA@lunn.ch>
Date:   Thu, 10 Jun 2021 06:05:56 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Wong Vee Khee <vee.khee.wong@...ux.intel.com>
Cc:     Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: [PATCH net-next 1/1] net: phy: probe for C45 PHYs that return
 PHY ID of zero in C22 space

On Mon, Jun 07, 2021 at 10:36:45AM +0800, Wong Vee Khee wrote:
> PHY devices such as the Marvell Alaska 88E2110 does not return a valid
> PHY ID when probed using Clause-22. The current implementation treats
> PHY ID of zero as a non-error and valid PHY ID, and causing the PHY
> device failed to bind to the Marvell driver.
> 
> For such devices, we do an additional probe in the Clause-45 space,
> if a valid PHY ID is returned, we then proceed to attach the PHY
> device to the matching PHY ID driver.
> 
> Signed-off-by: Wong Vee Khee <vee.khee.wong@...ux.intel.com>

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

    Andrew

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