linux-kernel - Re: [PATCH v7 1/4] dt-bindings: reset: renesas,rzv2h-usb2phy: Add '#mux-state-cells' property

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Message-Id: <176971213156.1637421.14962977334514056951.robh@kernel.org>
Date: Thu, 29 Jan 2026 12:42:11 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
Cc: devicetree@...r.kernel.org, biju.das.jz@...renesas.com, 
 Fabrizio Castro <fabrizio.castro.jz@...esas.com>, 
 Philipp Zabel <p.zabel@...gutronix.de>, linux-kernel@...r.kernel.org, 
 Magnus Damm <magnus.damm@...il.com>, linux-renesas-soc@...r.kernel.org, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, tomm.merciai@...il.com, 
 Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>, 
 Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>, 
 Geert Uytterhoeven <geert+renesas@...der.be>
Subject: Re: [PATCH v7 1/4] dt-bindings: reset: renesas,rzv2h-usb2phy: Add
 '#mux-state-cells' property


On Thu, 29 Jan 2026 17:52:55 +0100, Tommaso Merciai wrote:
> Add the '#mux-state-cells' property to support describing the USB VBUS_SEL
> multiplexer as a mux-controller in the Renesas RZ/V2H(P) USB2PHY binding.
> 
> The mux-controller cannot be integrated into the parent USB2PHY node
> because the VBUS source selector is part of a separate hardware block,
> not the USB2PHY block itself.
> 
> This is required to properly configure USB PHY power selection on
> RZ/V2H(P) and RZ/G3E SoCs.
> 
> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
> Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
> ---
> v6->v7:
>  - No changes
> 
> v5->v6:
>  - Collected KKrzysztof tag
> 
> v4->v5:
>  - No changes
> 
> v3->v4:
>  - Switch back to v2 implementation.
>  - Improve commit body.
> 
> v2->v3:
>  - Manipulate mux-controller as an internal node.
>  - Improved commit body.
> 
> v1->v2:
>  - New patch
> 
>  .../bindings/reset/renesas,rzv2h-usb2phy-reset.yaml          | 5 +++++
>  1 file changed, 5 insertions(+)
> 

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/reset/renesas,rzv2h-usb2phy-reset.example.dtb: reset-controller@...30000 (renesas,r9a09g057-usb2phy-reset): $nodename:0: 'reset-controller@...30000' does not match '^mux-controller(@.*|-([0-9]|[1-9][0-9]+))?$'
	from schema $id: http://devicetree.org/schemas/mux/mux-controller.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/af75145b08e24034dcf367932002079363e5dd81.1769704000.git.tommaso.merciai.xr@bp.renesas.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.