Add optional ether-port property link-pin <empty>

Signed-off-by: Michael Dege <michael.dege@renesas.com>
---
 .../devicetree/bindings/net/renesas,r8a779f0-ether-switch.yaml         | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/renesas,r8a779f0-ether-switch.yaml b/Documentation/devicetree/bindings/net/renesas,r8a779f0-ether-switch.yaml
index e933a1e48d67..54cd427d8ae5 100644
--- a/Documentation/devicetree/bindings/net/renesas,r8a779f0-ether-switch.yaml
+++ b/Documentation/devicetree/bindings/net/renesas,r8a779f0-ether-switch.yaml
@@ -126,6 +126,9 @@ properties:
           - phys
           - mdio
 
+	optional:
+	  - link-pin
+
 required:
   - compatible
   - reg

-- 
2.43.0