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

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Message-ID: <20251211194756.234043-2-ivecera@redhat.com>
Date: Thu, 11 Dec 2025 20:47:44 +0100
From: Ivan Vecera <ivecera@...hat.com>
To: 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>,
	Rob Herring <robh@...nel.org>,
	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: [PATCH RFC net-next 01/13] dt-bindings: net: ethernet-controller: Add DPLL pin properties

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.

Signed-off-by: Ivan Vecera <ivecera@...hat.com>
---
 .../bindings/net/ethernet-controller.yaml           | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/ethernet-controller.yaml b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
index 1bafd687dcb18..03d91f786294e 100644
--- a/Documentation/devicetree/bindings/net/ethernet-controller.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
@@ -13,6 +13,19 @@ properties:
   $nodename:
     pattern: "^ethernet(@.*)?$"
 
+  dpll-pins:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description:
+      List of phandle to a DPLL pin node of the pins that are
+      connected with this ethernet controller.
+
+  dpll-pin-names:
+    $ref: /schemas/types.yaml#/definitions/string-array
+    description:
+      List of DPLL pin name strings in the same order as the dpll-pins,
+      with one name per pin. The dpll-pin-names can be used to match and
+      get a specific DPLL pin.
+
   label:
     description: Human readable label on a port of a box.
 
-- 
2.51.2