[PATCH] Documentation: Add MDIO bus node to PHY binding document

[Jonas Jensen <jonas.jensen@gmail.com>]

Add MDIO bus node segment and update the example,
allowing trivial bindings to break out boilerplate.

Signed-off-by: Jonas Jensen <jonas.jensen@gmail.com>
---

Notes:
    Changes per reply from Grant [0]
    
    [0] http://lists.infradead.org/pipermail/linux-arm-kernel/2013-November/208851.html
    
    Applies to next-20131111

 Documentation/devicetree/bindings/net/phy.txt | 37 +++++++++++++++++++++------
 1 file changed, 29 insertions(+), 8 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/phy.txt b/Documentation/devicetree/bindings/net/phy.txt
index 7cd18fb..4e58a5d 100644
--- a/Documentation/devicetree/bindings/net/phy.txt
+++ b/Documentation/devicetree/bindings/net/phy.txt
@@ -1,3 +1,13 @@
+MDIO Bus Nodes
+
+MDIO bus nodes describe an MDIO bus. It is a container for PHY nodes as
+described below.
+
+Required properties:
+- #address-cells = <1>;
+- #size-cells = <0>;
+
+
 PHY nodes
 
 Required properties:
@@ -23,13 +33,24 @@ Optional Properties:
   assume clause 22. The compatible list may also contain other
   elements.
 
+
 Example:
 
-ethernet-phy@0 {
-	compatible = "ethernet-phy-ieee802.3-c22";
-	linux,phandle = <2452000>;
-	interrupt-parent = <40000>;
-	interrupts = <35 1>;
-	reg = <0>;
-	device_type = "ethernet-phy";
-};
+mdio {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	ethernet-phy@0 {
+		device_type = "ethernet-phy";
+		compatible = "...", "ethernet-phy-ieee802.3-c22";
+		reg = <0>;
+		interrupts = <24 0>;
+	}
+
+	ethernet-phy@1 {
+		device_type = "ethernet-phy";
+		compatible = "...";
+		reg = <1>;
+		interrupts = <35 1>;
+	}
+}
-- 
1.8.2.1