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Message-Id: <172356649976.1163565.8068313360737284707.robh@kernel.org>
Date: Tue, 13 Aug 2024 10:28:19 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Frank Li <Frank.Li@....com>
Cc: Paolo Abeni <pabeni@...hat.com>, Andrew Lunn <andrew@...n.ch>, 
 devicetree@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>, 
 linux-kernel@...r.kernel.org, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Eric Dumazet <edumazet@...gle.com>, imx@...ts.linux.dev, 
 netdev@...r.kernel.org, Florian Fainelli <f.fainelli@...il.com>, 
 Conor Dooley <conor+dt@...nel.org>, Heiner Kallweit <hkallweit1@...il.com>, 
 "David S. Miller" <davem@...emloft.net>, 
 Russell King <linux@...linux.org.uk>
Subject: Re: [PATCH v2 1/1] dt-bindings: net: mdio: change nodename match
 pattern


On Tue, 13 Aug 2024 11:06:14 -0400, Frank Li wrote:
> 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@....com>
> ---
> 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(-)
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/mdio-gpio.example.dtb: mdio: $nodename:0: 'mdio' does not match '^mdio(-(bus|external))?(@.+|-([0-9]+))$'
	from schema $id: http://devicetree.org/schemas/net/mdio-gpio.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240813150615.3866759-1-Frank.Li@nxp.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.


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