[PATCH 1/1] dt-bindings: net: mdio: Add negative patten match for child node

[Frank Li <Frank.Li@xxxxxxx>]

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 defination.

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@20" match "patternProperties: '@[0-9a-f]+$'" in
mdio.yaml.

Change to '^(?!mdio@).*@[0-9a-f]+$' to avoid match parent's mdio
controller's address.

Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
---
 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..a7def3eb4674d 100644
--- a/Documentation/devicetree/bindings/net/mdio.yaml
+++ b/Documentation/devicetree/bindings/net/mdio.yaml
@@ -59,7 +59,7 @@ properties:
     type: boolean
 
 patternProperties:
-  '@[0-9a-f]+$':
+  '^(?!mdio@).*@[0-9a-f]+$':
     type: object
 
     properties:
-- 
2.34.1