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Date:   Mon, 28 Jun 2021 16:14:29 +0200
From:   Lukasz Majewski <lukma@denx.de>
To:     Andrew Lunn <andrew@lunn.ch>
Cc:     "David S . Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Madalin Bucur <madalin.bucur@oss.nxp.com>,
        Nicolas Ferre <nicolas.ferre@microchip.com>,
        Joakim Zhang <qiangqing.zhang@nxp.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Vladimir Oltean <olteanv@gmail.com>, netdev@vger.kernel.org,
        Arnd Bergmann <arnd@arndb.de>,
        Mark Einon <mark.einon@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        linux-kernel@vger.kernel.org
Subject: Re: [RFC 2/3] net: Provide switchdev driver for NXP's More Than IP
 L2 switch
Message-ID: <20210628161429.5650221e@ktm>
In-Reply-To: <YNnNNkjOiH6hd2l9@lunn.ch>
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Hi Andrew,

> > The best I could get would be:
> >=20
> > &eth_switch {
> > 	compatible =3D "imx,mtip-l2switch";
> > 	reg =3D <0x800f8000 0x400>, <0x800fC000 0x4000>;
> >=20
> > 	interrupts =3D <100>;
> > 	status =3D "okay";
> >=20
> > 	ethernet-ports {
> > 		port1@1 {
> > 			reg =3D <1>;
> > 			label =3D "eth0";
> > 			phys =3D <&mac0 0>;
> > 		};
> >=20
> > 		port2@2 {
> > 			reg =3D <2>;
> > 			label =3D "eth1";
> > 			phys =3D <&mac1 1>;
> > 		};
> > 	};
> > };
> >=20
> > Which would abuse the "phys" properties usages - as 'mac[01]' are
> > referring to ethernet controllers. =20
>=20
> This is not how a dedicated driver would have its binding. We should
> not establish this as ABI.
>=20
> So, sorry, but no.

Thanks for the clear statement about upstream requirements.

>=20
>     Andrew


Best regards,

Lukasz Majewski

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DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
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