linux-kernel - Re: [net-next RFC PATCH 0/4] net: dsa: Add Airoha AN8855 support

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Message-ID: <20241021133605.yavvlsgp2yikeep4@skbuf>
Date: Mon, 21 Oct 2024 16:36:05 +0300
From: Vladimir Oltean <olteanv@...il.com>
To: Christian Marangi <ansuelsmth@...il.com>
Cc: Arınç ÜNAL <arinc.unal@...nc9.com>,
	Daniel Golle <daniel@...rotopia.org>,
	DENG Qingfang <dqfext@...il.com>,
	Sean Wang <sean.wang@...iatek.com>, Andrew Lunn <andrew@...n.ch>,
	Florian Fainelli <f.fainelli@...il.com>,
	"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>,
	Russell King <linux@...linux.org.uk>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org, netdev@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [net-next RFC PATCH 0/4] net: dsa: Add Airoha AN8855 support

On Mon, Oct 21, 2024 at 03:01:55PM +0200, Christian Marangi wrote:
> It's conceptually similar to mediatek switch but register and bits
> are different.

Is it impractical to use struct regmap_field to abstract those
differences away and reuse the mt7530 driver's control flow? What is the
relationship between the Airoha and Mediatek IP anyway? The mt7530
maintainers should also be consulted w.r.t. whether code sharing is in
the common interest (I copied them).