netdev - [net-next,v4 1/2] dt-bindings: net: renesas,etheravb: Add optional MDIO bus node

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Message-ID: <20240325153451.2366083-2-niklas.soderlund+renesas@ragnatech.se>
Date: Mon, 25 Mar 2024 16:34:50 +0100
From: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>
To: Sergey Shtylyov <s.shtylyov@....ru>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	netdev@...r.kernel.org,
	devicetree@...r.kernel.org
Cc: linux-renesas-soc@...r.kernel.org,
	Niklas Söderlund <niklas.soderlund+renesas@...natech.se>,
	Rob Herring <robh@...nel.org>
Subject: [net-next,v4 1/2] dt-bindings: net: renesas,etheravb: Add optional MDIO bus node

The Renesas Ethernet AVB bindings do not allow the MDIO bus to be
described. This has not been needed as only a single PHY is
supported and no MDIO bus properties have been needed.

Add an optional mdio node to the binding which allows the MDIO bus to be
described and allow bus properties to be set.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>
Reviewed-by: Sergey Shtylyov <s.shtylyov@....ru>
Reviewed-by: Rob Herring <robh@...nel.org>
---
* Changes since v3
- Marked the '#address-cells' and '#size-cells' properties as depricated
  as well as making them optional.

* Changes since v2
- Mark the PHY pattern as deprecated and add a comment that new bindings
  should describe the PHY inside the MDIO node.
---
 .../devicetree/bindings/net/renesas,etheravb.yaml    | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/renesas,etheravb.yaml b/Documentation/devicetree/bindings/net/renesas,etheravb.yaml
index de7ba7f345a9..21a92f179093 100644
--- a/Documentation/devicetree/bindings/net/renesas,etheravb.yaml
+++ b/Documentation/devicetree/bindings/net/renesas,etheravb.yaml
@@ -88,10 +88,16 @@ properties:
   '#address-cells':
     description: Number of address cells for the MDIO bus.
     const: 1
+    deprecated: true
 
   '#size-cells':
     description: Number of size cells on the MDIO bus.
     const: 0
+    deprecated: true
+
+  mdio:
+    $ref: /schemas/net/mdio.yaml#
+    unevaluatedProperties: false
 
   renesas,no-ether-link:
     type: boolean
@@ -110,9 +116,13 @@ properties:
   tx-internal-delay-ps:
     enum: [0, 2000]
 
+# In older bindings there where no mdio child-node to describe the MDIO bus
+# and the PHY. To not fail older bindings accept any node with an address. New
+# users should describe the PHY inside the mdio child-node.
 patternProperties:
   "@[0-9a-f]$":
     type: object
+    deprecated: true
 
 required:
   - compatible
@@ -123,8 +133,6 @@ required:
   - resets
   - phy-mode
   - phy-handle
-  - '#address-cells'
-  - '#size-cells'
 
 allOf:
   - $ref: ethernet-controller.yaml#
-- 
2.44.0