linux-kernel - [net-next PATCH v3 07/11] dt-bindings: net: ethernet-controller: permit to define multiple PCS

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Message-ID: <20250510102348.14134-8-ansuelsmth@gmail.com>
Date: Sat, 10 May 2025 12:23:27 +0200
From: Christian Marangi <ansuelsmth@...il.com>
To: 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>,
	Lorenzo Bianconi <lorenzo@...nel.org>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Christian Marangi <ansuelsmth@...il.com>,
	Daniel Golle <daniel@...rotopia.org>,
	netdev@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Subject: [net-next PATCH v3 07/11] dt-bindings: net: ethernet-controller: permit to define multiple PCS

Drop the limitation of a single PCS in pcs-handle property. Multiple PCS
can be defined for an ethrnet-controller node to support various PHY
interface mode type.

It's very common for SoCs to have a 2 or more dedicated PCS for Base-X
(for example SGMII, 1000base-x, 2500base-x, ...) and Base-R (for example
USXGMII,10base-r, ...) with the MAC selecting one of the other based on
the attached PHY.

Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
---
 Documentation/devicetree/bindings/net/ethernet-controller.yaml | 2 --
 1 file changed, 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/ethernet-controller.yaml b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
index 7cbf11bbe99c..60605b34d242 100644
--- a/Documentation/devicetree/bindings/net/ethernet-controller.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
@@ -84,8 +84,6 @@ properties:
 
   pcs-handle:
     $ref: /schemas/types.yaml#/definitions/phandle-array
-    items:
-      maxItems: 1
     description:
       Specifies a reference to a node representing a PCS PHY device on a MDIO
       bus to link with an external PHY (phy-handle) if exists.
-- 
2.48.1