[net-next,PATCH 1/2] dt-bindings: net: enetc-mdio: Document optional MDC clock

[Marek Vasut]

Document clock from which the MDIO MDC clock are derived from.
While those clock are always present in every SoC, they are not
described in legacy DTs, make them optional. The clock-frequency
DT property is not described here, it is already part of mdio.yaml .

Signed-off-by: Marek Vasut <marex@xxxxxxxxxxxx>
---
Cc: "Christophe Leroy (CS GROUP)" <chleroy@xxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Andrew Lunn <andrew+netdev@xxxxxxx>
Cc: Clark Wang <xiaoning.wang@xxxxxxx>
Cc: Claudiu Manoil <claudiu.manoil@xxxxxxx>
Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
Cc: Eric Dumazet <edumazet@xxxxxxxxxx>
Cc: Frank Li <Frank.Li@xxxxxxx>
Cc: Jakub Kicinski <kuba@xxxxxxxxxx>
Cc: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
Cc: Paolo Abeni <pabeni@xxxxxxxxxx>
Cc: Rob Herring <robh@xxxxxxxxxx>
Cc: UNGLinuxDriver@xxxxxxxxxxxxx
Cc: Vladimir Oltean <vladimir.oltean@xxxxxxx>
Cc: Wei Fang <wei.fang@xxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: imx@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
Cc: netdev@xxxxxxxxxxxxxxx
---
 Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml b/Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml
index 71c43ece82954..708d410187baa 100644
--- a/Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml
+++ b/Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml
@@ -31,6 +31,11 @@ properties:
   reg:
     maxItems: 1
 
+  clocks:
+    items:
+      - description: A reference to the input clock of the controller
+          from which the MDC frequency is derived.
+
 required:
   - compatible
   - reg
-- 
2.53.0