linux-kernel - [PATCH v4 06/11] dt-bindings: net: mediatek,net: Correct bindings for MT7981

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Message-Id: <20251115-openwrt-one-network-v4-6-48cbda2969ac@collabora.com>
Date: Sat, 15 Nov 2025 21:58:09 +0100
From: Sjoerd Simons <sjoerd@...labora.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Ryder Lee <ryder.lee@...iatek.com>, 
 Jianjun Wang <jianjun.wang@...iatek.com>, 
 Bjorn Helgaas <bhelgaas@...gle.com>, 
 Lorenzo Pieralisi <lpieralisi@...nel.org>, 
 Krzysztof Wilczyński <kwilczynski@...nel.org>, 
 Manivannan Sadhasivam <mani@...nel.org>, 
 Chunfeng Yun <chunfeng.yun@...iatek.com>, Vinod Koul <vkoul@...nel.org>, 
 Kishon Vijay Abraham I <kishon@...nel.org>, Lee Jones <lee@...nel.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>, 
 Lorenzo Bianconi <lorenzo@...nel.org>, Felix Fietkau <nbd@....name>
Cc: kernel@...labora.com, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-mediatek@...ts.infradead.org, linux-pci@...r.kernel.org, 
 linux-phy@...ts.infradead.org, netdev@...r.kernel.org, 
 Daniel Golle <daniel@...rotopia.org>, Bryan Hinton <bryan@...anhinton.com>, 
 Sjoerd Simons <sjoerd@...labora.com>
Subject: [PATCH v4 06/11] dt-bindings: net: mediatek,net: Correct bindings
 for MT7981

Different SoCs have different numbers of Wireless Ethernet
Dispatch (WED) units:
- MT7981: Has 1 WED unit
- MT7986: Has 2 WED units
- MT7988: Has 2 WED units

Update the binding to reflect these hardware differences. The MT7981
also uses infracfg for PHY switching, so allow that property.

Signed-off-by: Sjoerd Simons <sjoerd@...labora.com>
--
V4:
  - Move back to V2 version (widening global constraint, constraining
    per compatible)
  - Ensure all compatibles are constraint in the amount of WEDs (2 for
    everything apart from mt7981). Specifically adding constraints for
    mediatek,mt7622-eth and ralink,rt5350-eth
V2 -> V3: Only update MT7981 constraints rather then defaults
V2: Only overwrite properties that are different from the default
---
 .../devicetree/bindings/net/mediatek,net.yaml      | 26 +++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/mediatek,net.yaml b/Documentation/devicetree/bindings/net/mediatek,net.yaml
index b45f67f92e80d..cc346946291af 100644
--- a/Documentation/devicetree/bindings/net/mediatek,net.yaml
+++ b/Documentation/devicetree/bindings/net/mediatek,net.yaml
@@ -112,7 +112,7 @@ properties:

   mediatek,wed:
     $ref: /schemas/types.yaml#/definitions/phandle-array
-    minItems: 2
+    minItems: 1
     maxItems: 2
     items:
       maxItems: 1
@@ -249,6 +249,9 @@ allOf:
           minItems: 1
           maxItems: 1

+        mediatek,wed:
+          minItems: 2
+
         mediatek,wed-pcie: false
     else:
       properties:
@@ -338,12 +341,13 @@ allOf:
             - const: netsys0
             - const: netsys1

-        mediatek,infracfg: false
-
         mediatek,sgmiisys:
           minItems: 2
           maxItems: 2

+        mediatek,wed:
+          maxItems: 1
+
   - if:
       properties:
         compatible:
@@ -385,6 +389,9 @@ allOf:
           minItems: 2
           maxItems: 2

+        mediatek,wed:
+          minItems: 2
+
   - if:
       properties:
         compatible:
@@ -429,6 +436,19 @@ allOf:
             - const: xgp2
             - const: xgp3

+        mediatek,wed:
+          minItems: 2
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ralink,rt5350-eth
+    then:
+      properties:
+        mediatek,wed:
+          minItems: 2
+
 patternProperties:
   "^mac@[0-2]$":
     type: object

-- 
2.51.0