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: <aLa6IeZsGeESpMKQ@shell.armlinux.org.uk>
Date: Tue, 2 Sep 2025 10:34:25 +0100
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Prabhakar <prabhakar.csengg@...il.com>
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

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.

Thanks.
-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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