linux-kernel - Re: [PATCH] dt-bindings: phy: qcom,sc8280xp-qmp-usb43dp: do not reference whole usb-switch.yaml

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Message-ID: <20250905175533.GA1000951-robh@kernel.org>
Date: Fri, 5 Sep 2025 12:55:33 -0500
From: Rob Herring <robh@...nel.org>
To: Neil Armstrong <neil.armstrong@...aro.org>
Cc: Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: phy: qcom,sc8280xp-qmp-usb43dp: do not
 reference whole usb-switch.yaml

On Tue, Sep 02, 2025 at 06:10:05PM +0200, Neil Armstrong wrote:
> Both bindings describe a different layout of the ports properties,
> leading to errors when validating DT using this PHY bindings as
> reported by Rob Herring.
> 
> Reported-by: Rob Herring <robh@...nel.org>
> Closes: https://lore.kernel.org/all/175462129176.394940.16810637795278334342.robh@kernel.org/
> Fixes: 3bad7fe22796 ("dt-bindings: phy: qcom,sc8280xp-qmp-usb43dp: Reference usb-switch.yaml to allow mode-switch")
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
> ---
>  .../devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml    | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml
> index c8bc512df08b5694c8599f475de78679a4438449..5005514d7c3a1e4a8893883497fd204bc04e12be 100644
> --- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml
> @@ -73,8 +73,11 @@ properties:
>      description:
>        See include/dt-bindings/phy/phy-qcom-qmp.h
>  
> -  mode-switch: true
> -  orientation-switch: true
> +  mode-switch:
> +    $ref: /schemas/usb/usb-switch.yaml#properties/mode-switch
> +
> +  orientation-switch:
> +    $ref: /schemas/usb/usb-switch.yaml#properties/orientation-switch

This is a pattern we try to avoid with references at a property level. I 
prefer you make port and ports not required in usb-switch.yaml.

Rob