linux-kernel - [PATCH net-next v3 1/2] dt-bindings: net: marvell,aquantia: add property to override MDI

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Message-ID: <7ccf25d6d7859f1ce9983c81a2051cfdfb0e0a99.1728058550.git.daniel@makrotopia.org>
Date: Fri, 4 Oct 2024 17:18:05 +0100
From: Daniel Golle <daniel@...rotopia.org>
To: "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>, Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Christian Marangi <ansuelsmth@...il.com>,
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
	Daniel Golle <daniel@...rotopia.org>,
	Robert Marko <robimarko@...il.com>,
	Paweł Owoc <frut3k7@...il.com>,
	netdev@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH net-next v3 1/2] dt-bindings: net: marvell,aquantia: add
 property to override MDI_CFG

Usually the MDI pair order reversal configuration is defined by
bootstrap pin MDI_CFG. Some designs, however, require overriding the MDI
pair order and force either normal or reverse order.

Add property 'marvell,mdi-cfg-order' to allow forcing either normal or
reverse order of the MDI pairs.

Signed-off-by: Daniel Golle <daniel@...rotopia.org>
---
v3: use integer enum instead of two properties as suggested
v2: enforce mutually exclusive relationship of the two new properties in
    dt-schema.

 Documentation/devicetree/bindings/net/marvell,aquantia.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/marvell,aquantia.yaml b/Documentation/devicetree/bindings/net/marvell,aquantia.yaml
index 9854fab4c4db..f269615126d8 100644
--- a/Documentation/devicetree/bindings/net/marvell,aquantia.yaml
+++ b/Documentation/devicetree/bindings/net/marvell,aquantia.yaml
@@ -48,6 +48,12 @@ properties:
   firmware-name:
     description: specify the name of PHY firmware to load
 
+  marvell,mdi-cfg-order:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1]
+    description:
+      force normal (0) or reverse (1) order of MDI pairs, overriding MDI_CFG bootstrap pin.
+
   nvmem-cells:
     description: phandle to the firmware nvmem cell
     maxItems: 1
-- 
2.46.2