[net-next PATCH 1/2] dt-bindings: net: macb: Add mdio bus child node

[Sean Anderson]

This adds an optional mdio bus child node. If present, the mac will
look for PHYs there instead of directly under the top-level node. This
eliminates any ambiguity about whether child nodes are PHYs, and allows
the MDIO bus to contain non-PHY devices.

Signed-off-by: Sean Anderson <sean.anderson@xxxxxxxx>
---

 Documentation/devicetree/bindings/net/macb.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/macb.txt b/Documentation/devicetree/bindings/net/macb.txt
index af9df2f01a1c..a1b06fd1962e 100644
--- a/Documentation/devicetree/bindings/net/macb.txt
+++ b/Documentation/devicetree/bindings/net/macb.txt
@@ -30,6 +30,10 @@ Required properties:
 	Optional elements: 'tsu_clk'
 - clocks: Phandles to input clocks.
 
+Optional properties:
+- mdio: node containing PHY children. If this node is not present, then PHYs
+        will be direct children.
+
 The MAC address will be determined using the optional properties
 defined in ethernet.txt.
 
-- 
2.25.1