Thread (13 messages) 13 messages, 3 authors, 2d ago

[PATCH net-next v12 4/6] dt-bindings: net: rockchip-dwmac: document pcs-handle

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WARM2d LANDED: 1 (1M)

From: Coia Prant <coiaprant@gmail.com>
Date: 2026-10-17 05:45:32
Also in: linux-arm-kernel, linux-devicetree, linux-rockchip, lkml
Subsystem: networking drivers, open firmware and flattened device tree bindings, the rest · Maintainers: Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

Revision v12 of 11 in this series; 1 review trailer (1 from subsystem maintainers); landed in mainline as dffa8241fca5 on 2026-10-21.

Revisions (11)
  1. v3 [diff vs current]
  2. v4 [diff vs current]
  3. v5 [diff vs current]
  4. v6 [diff vs current]
  5. v7 [diff vs current]
  6. v8 [diff vs current]
  7. v9 [diff vs current]
  8. v10 [diff vs current]
  9. v10 [diff vs current]
  10. v11 [diff vs current]
  11. v12 current
The Rockchip GMAC binding needs to describe the PCS reference used by
the SGMII support added later in this series. The property will be
parsed by rk_pcs_init(), and a missing phandle fails the probe. Add it
and require it when phy-mode is "sgmii" on rockchip,rk3568-gmac, the
only SoC in this binding that has SGMII support.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Coia Prant <coiaprant@gmail.com>
---
 .../bindings/net/rockchip-dwmac.yaml          | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
index 80c252845349c..c434450fd07ff 100644
--- a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
@@ -120,6 +120,12 @@ properties:
     maximum: 0x7F
     default: 0x10
 
+  pcs-handle:
+    description:
+      Specifies a reference to a node representing the PCS device
+      connected to this GMAC. Required when phy-mode is "sgmii".
+    maxItems: 1
+
   phy-supply:
     description: PHY regulator
 
@@ -159,6 +165,27 @@ allOf:
         clocks:
           minItems: 5
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: rockchip,rk3568-gmac
+    then:
+      required:
+        - phy-mode
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: rockchip,rk3568-gmac
+        phy-mode:
+          contains:
+            const: sgmii
+    then:
+      required:
+        - pcs-handle
+
 unevaluatedProperties: false
 
 examples:
-- 
2.47.3
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