linux-kernel - Re: [PATCH net-next 10/10] net: pcs: rzn1-miic: Add PCS validate callback for RZ/T2H MIIC

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Message-ID: <CA+V-a8vPJ45ZB8RvLaw7Vhm35f28VrHj3zZkCdN-MZzhcd5CiQ@mail.gmail.com>
Date: Tue, 2 Sep 2025 11:26:25 +0100
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To: "Russell King (Oracle)" <linux@...linux.org.uk>
Cc: Clément Léger <clement.leger@...tlin.com>, 
	Andrew Lunn <andrew+netdev@...n.ch>, "David S. Miller" <davem@...emloft.net>, 
	Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Heiner Kallweit <hkallweit1@...il.com>, Philipp Zabel <p.zabel@...gutronix.de>, 
	Geert Uytterhoeven <geert+renesas@...der.be>, Magnus Damm <magnus.damm@...il.com>, 
	Wolfram Sang <wsa+renesas@...g-engineering.com>, linux-renesas-soc@...r.kernel.org, 
	netdev@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Biju Das <biju.das.jz@...renesas.com>, 
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>, 
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH net-next 10/10] net: pcs: rzn1-miic: Add PCS validate
 callback for RZ/T2H MIIC

Hi Russell,

On Tue, Sep 2, 2025 at 10:34 AM Russell King (Oracle)
<linux@...linux.org.uk> wrote:
>
> On Mon, Sep 01, 2025 at 11:43:23PM +0100, Prabhakar wrote:
> > Add a SoC-specific `pcs_ops` pointer in `miic_of_data` to allow
> > custom phylink PCS callbacks. For RZ/T2H MIIC, implement
> > `rzt2h_miic_validate` to restrict valid interfaces to RGMII, RMII,
> > and MII. Assign `rzt2h_miic_phylink_ops` with the new validate
> > callback to the RZ/T2H MIIC SoC data structure, keeping existing
> > PCS support intact for other SoCs.
>
> This seems completely pointless. Please review commit 508df2de7b3e
> ("net: pcs: rzn1-miic: fill in PCS supported_interfaces") to find
> out why.
>
Thank you for pointing this out. I'll drop this patch while sending a v2.

Cheers,
Prabhakar