[PATCH v2 1/1] dt-bindings: net: mdio: change nodename match pattern

[Frank Li <Frank.Li@xxxxxxx>]

Change mdio.yaml nodename match pattern to
	'^mdio(-(bus|external))?(@.+|-([0-9]+))$'

Fix mdio.yaml wrong parser mdio controller's address instead phy's address
when mdio-mux exist.

For example:
mdio-mux-emi1@54 {
	compatible = "mdio-mux-mmioreg", "mdio-mux";

        mdio@20 {
		reg = <0x20>;
		       ^^^ This is mdio controller register

		ethernet-phy@2 {
			reg = <0x2>;
                              ^^^ This phy's address
		};
	};
};

Only phy's address is limited to 31 because MDIO bus definition.

But CHECK_DTBS report below warning:

arch/arm64/boot/dts/freescale/fsl-ls1043a-qds.dtb: mdio-mux-emi1@54:
	mdio@20:reg:0:0: 32 is greater than the maximum of 31

The reason is that "mdio-mux-emi1@54" match "nodename: '^mdio(@.*)?'" in
mdio.yaml.

Change to '^mdio(-(bus|external))?(@.+|-([0-9]+))$' to avoid wrong match
mdio mux controller's node.

Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
---
Change from v1 to v2
- use rob's suggest to fix node name pattern.
---
 Documentation/devicetree/bindings/net/mdio.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/mdio.yaml b/Documentation/devicetree/bindings/net/mdio.yaml
index a266ade918ca7..2ed787e4fbbf2 100644
--- a/Documentation/devicetree/bindings/net/mdio.yaml
+++ b/Documentation/devicetree/bindings/net/mdio.yaml
@@ -19,7 +19,7 @@ description:
 
 properties:
   $nodename:
-    pattern: "^mdio(@.*)?"
+    pattern: '^mdio(-(bus|external))?(@.+|-([0-9]+))$'
 
   "#address-cells":
     const: 1
-- 
2.34.1