linux-kernel - Re: [PATCH 08/10] mips: dts: ralink: mt7621: change mt7530 switch address

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Message-ID: <CAMhs-H-zYdjHX99vXpeDerhMNbX10BWtUq6WSeAHyDNG8ruXCA@mail.gmail.com>
Date:   Thu, 15 Sep 2022 07:09:13 +0200
From:   Sergio Paracuellos <sergio.paracuellos@...il.com>
To:     Arınç ÜNAL <arinc.unal@...nc9.com>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>, erkin.bozoglu@...ont.com,
        netdev <netdev@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, linux-arm-kernel@...ts.infradead.org,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "open list:MIPS" <linux-mips@...r.kernel.org>,
        Sungbo Eo <mans0n@...ani.run>
Subject: Re: [PATCH 08/10] mips: dts: ralink: mt7621: change mt7530 switch address

On Wed, Sep 14, 2022 at 10:56 AM Arınç ÜNAL <arinc.unal@...nc9.com> wrote:
>
> In the case of muxing phy0 of the MT7530 switch, the switch and the phy
> will have the same address on the mdio bus, 0. This causes the ethernet
> driver to fail since devices on the mdio bus cannot share an address.
>
> Any address can be used for the switch, therefore, change the switch
> address to 0x1f.
>
> Suggested-by: Sungbo Eo <mans0n@...ani.run>
> Signed-off-by: Arınç ÜNAL <arinc.unal@...nc9.com>
> ---
>  arch/mips/boot/dts/ralink/mt7621.dtsi | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Reviewed-by: Sergio Paracuellos <sergio.paracuellos@...il.com>

Thanks,
    Sergio Paracuellos