linux-kernel - Re: [PATCH v3 1/3] dt-bindings: connector: usb: add altmodes description

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Message-ID: <ac3f3304-6dcd-470a-907c-32a63d3c39cf@linaro.org>
Date:   Tue, 21 Nov 2023 09:31:13 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        Mark Gross <markgross@...nel.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: Re: [PATCH v3 1/3] dt-bindings: connector: usb: add altmodes
 description

On 20/11/2023 23:00, Dmitry Baryshkov wrote:
> Add description of the USB-C AltModes supported on the particular USB-C
> connector. This is required for devices like Qualcomm Robotics RB5,
> which have no other way to express alternative modes supported by the
> hardware platform.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> ---
>  .../bindings/connector/usb-connector.yaml     | 29 +++++++++++++++++++
>  1 file changed, 29 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml
> index 7c8a3e8430d3..c1aaac861d9d 100644
> --- a/Documentation/devicetree/bindings/connector/usb-connector.yaml
> +++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml
> @@ -171,6 +171,28 @@ properties:
>        offer the power, Capability Mismatch is set. Required for power sink and
>        power dual role.
>  
> +  altmodes:
> +    type: object
> +    description: List of Alternative Modes supported by the schematics on the
> +      particular device. This is only necessary if there are no other means to
> +      discover supported alternative modes (e.g. through the UCSI firmware
> +      interface).
> +
> +    patternProperties:
> +      "^(displayport)$":

This is just a property, so should be under "properties:".

The rest looks good to me, but I don't know USB that much to judge.

Best regards,
Krzysztof