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Date:   Thu, 5 May 2022 10:46:55 +0200
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Subject: Re: [RFC v2 4/4] arm64: dts: rockchip: Add mt7531 dsa node to
 BPI-R2-Pro board
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To:     Vladimir Oltean <olteanv@gmail.com>,
        Frank Wunderlich <frank-w@public-files.de>
Cc:     Frank Wunderlich <linux@fw-web.de>,
        linux-mediatek@lists.infradead.org,
        linux-rockchip@lists.infradead.org,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Heiko Stuebner <heiko@sntech.de>,
        Sean Wang <sean.wang@mediatek.com>,
        Landen Chao <Landen.Chao@mediatek.com>,
        DENG Qingfang <dqfext@gmail.com>, Andrew Lunn <andrew@lunn.ch>,
        Vivien Didelot <vivien.didelot@gmail.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Peter Geis <pgwipeout@gmail.com>, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        netdev@vger.kernel.org
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From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <20220504154720.62cwrz7frjkjbb7u@skbuf>
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On 04/05/2022 17:47, Vladimir Oltean wrote:
>>
>> current device-tree nodes using "switch" and "ports"
>>
>> see discussioon here about make it fixed to "ports" property instead of PatternProperties including optional "ethernet-"
>>
>> https://patchwork.kernel.org/project/linux-mediatek/patch/20220502153238.85090-1-linux@fw-web.de/#24843155
> 
> Hmm, I don't get why Krzysztof said to just keep what is used in
> existing device trees. The schema validator should describe what is
> valid, 

These were talks about bindings which describe hardware. The node name,
except Devicetree spec asking for generic names, does not matter here
actually.

> and since the mt7530 driver does not care one way or another
> (some drivers do explicitly parse the "ports"/"ethernet-ports" node),
> then whatever is valid for the DSA core is also valid for the mt7530
> bindings. And "ethernet-ports" is valid too, so I think it should be
> accepted by mediatek.yaml...

You can make it "(ethernet-)?ports" as well. My comment was purely to
make it simpler, for bindings (goes into properties, not
patternProperties) and for us. If you prefer to keep it like DSA core,
also fine.

Best regards,
Krzysztof