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From: Vladimir Oltean <olteanv@gmail.com>
To: Daniel Golle <daniel@makrotopia.org>
Cc: Hauke Mehrtens <hauke@hauke-m.de>, Andrew Lunn <andrew@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	netdev@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 1/3] dt-bindings: net: dsa: lantiq,gswip: reference common PHY properties
Date: Tue, 27 Jan 2026 17:07:47 +0200	[thread overview]
Message-ID: <20260127150747.lzlfzhusywluuxhs@skbuf> (raw)
In-Reply-To: <aXjGh1nzeAz8TQzH@makrotopia.org>

On Tue, Jan 27, 2026 at 02:07:03PM +0000, Daniel Golle wrote:
> Yeah, I thought about that, but it would be a lot of work to
> let the driver expose and simple-bus as MFD with devices (clk controller,
> reset controller, pcs, ...) sitting on register ranges. Imho not worth
> the effort in this case, we discussed it.

Possibly so; I don't have access from this computer to my previous notes
on this topic.

> However, even in that case imho it's fine to let it share the OF node
> with the ethernet-port. Why not?

I don't have a good feeling of how reusable this PCS IP truly is.
For example the XPCS gained DT bindings before I needed to customize the
lane polarity for its SJA1105 instantiation, so now I have to work with
and somehow adapt those.

If the PCS has a fixed mapping to that port then I suppose it can use
its OF node space without any extra overengineering. There should exist
ways to keep compatibility with this scheme even if there will be
efforts to have a reusable driver later.

  reply	other threads:[~2026-01-27 15:07 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-27 13:18 [PATCH net-next 0/3] net: dsa: mxl-gsw1xx: setup polarities and validate chip Daniel Golle
2026-01-27 13:18 ` [PATCH net-next 1/3] dt-bindings: net: dsa: lantiq,gswip: reference common PHY properties Daniel Golle
2026-01-27 13:29   ` Vladimir Oltean
2026-01-27 14:07     ` Daniel Golle
2026-01-27 15:07       ` Vladimir Oltean [this message]
2026-01-27 22:10         ` Daniel Golle
2026-01-27 22:25           ` Vladimir Oltean
2026-01-28  1:47             ` Daniel Golle
2026-01-27 15:21       ` Andrew Lunn
2026-01-27 16:22         ` Daniel Golle
2026-01-27 13:18 ` [PATCH net-next 2/3] net: dsa: mxl-gsw1xx: configure PCS polarities Daniel Golle
2026-01-27 13:25   ` Vladimir Oltean
2026-01-27 13:18 ` [PATCH net-next 3/3] net: dsa: mxl-gsw1xx: validate chip ID Daniel Golle

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