linux-kernel - Re: [PATCH RFC net-next 01/13] dt-bindings: net: ethernet-controller: Add DPLL pin properties

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Message-ID: <20251217004946.GA3445804-robh@kernel.org>
Date: Tue, 16 Dec 2025 18:49:46 -0600
From: Rob Herring <robh@...nel.org>
To: Andrew Lunn <andrew@...n.ch>
Cc: Ivan Vecera <ivecera@...hat.com>, netdev@...r.kernel.org,
	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>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Vadim Fedorenko <vadim.fedorenko@...ux.dev>,
	Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>,
	Grzegorz Nitka <grzegorz.nitka@...el.com>,
	Jiri Pirko <jiri@...nulli.us>, Petr Oros <poros@...hat.com>,
	Michal Schmidt <mschmidt@...hat.com>,
	Prathosh Satish <Prathosh.Satish@...rochip.com>,
	Tony Nguyen <anthony.l.nguyen@...el.com>,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	Saeed Mahameed <saeedm@...dia.com>,
	Leon Romanovsky <leon@...nel.org>, Tariq Toukan <tariqt@...dia.com>,
	Mark Bloch <mbloch@...dia.com>,
	Richard Cochran <richardcochran@...il.com>,
	Jonathan Lemon <jonathan.lemon@...il.com>,
	Simon Horman <horms@...nel.org>,
	Alexander Lobakin <aleksander.lobakin@...el.com>,
	Willem de Bruijn <willemb@...gle.com>,
	Stefan Wahren <wahrenst@....net>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, intel-wired-lan@...ts.osuosl.org,
	linux-rdma@...r.kernel.org
Subject: Re: [PATCH RFC net-next 01/13] dt-bindings: net:
 ethernet-controller: Add DPLL pin properties

On Thu, Dec 11, 2025 at 08:56:52PM +0100, Andrew Lunn wrote:
> On Thu, Dec 11, 2025 at 08:47:44PM +0100, Ivan Vecera wrote:
> > Ethernet controllers may be connected to DPLL (Digital Phase Locked Loop)
> > pins for frequency synchronization purposes, such as in Synchronous
> > Ethernet (SyncE) configurations.
> > 
> > Add 'dpll-pins' and 'dpll-pin-names' properties to the generic
> > ethernet-controller schema. This allows describing the physical
> > connections between the Ethernet controller and the DPLL subsystem pins
> > in the Device Tree, enabling drivers to request and manage these
> > resources.
> 
> Please include a .dts patch in the series which actually makes use of
> these new properties.

Actually, first you need a device (i.e. a specific ethernet 
controller bindings) using this and defining the number of dpll-pins 
entries and the names. 

Rob