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Message-ID: <3dbb38af-4813-3c5d-8a12-cdd63bdbe3c2@linaro.org>
Date:   Tue, 14 Jun 2022 13:53:19 -0700
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Prashant Malani <pmalani@...omium.org>,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Cc:     bleung@...omium.org, swboyd@...omium.org,
        heikki.krogerus@...ux.intel.com,
        Nícolas F . R . A . Prado 
        <nfraprado@...labora.com>, Andrzej Hajda <andrzej.hajda@...el.com>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "open list:DRM DRIVERS" <dri-devel@...ts.freedesktop.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Jonas Karlman <jonas@...boo.se>,
        José Expósito <jose.exposito89@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Maxime Ripard <maxime@...no.tech>,
        Neil Armstrong <narmstrong@...libre.com>,
        Pin-Yen Lin <treapking@...omium.org>,
        Robert Foss <robert.foss@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sam Ravnborg <sam@...nborg.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Xin Ji <xji@...logixsemi.com>
Subject: Re: [PATCH v3 4/7] dt-bindings: drm/bridge: anx7625: Add mode-switch
 support

On 14/06/2022 12:34, Prashant Malani wrote:
> Analogix 7625 can be used in systems to switch USB Type-C DisplayPort
> alternate mode lane traffic between 2 Type-C ports.
> 
> Update the binding to accommodate this usage by introducing a switch
> property.
> 
> Reviewed-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
> Tested-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
> Signed-off-by: Prashant Malani <pmalani@...omium.org>
> ---
> 
> Changes since v2:
> - Added Reviewed-by and Tested-by tags.
> 
> Changes since v1:
> - Introduced patternProperties for "switch" children (suggested by Krzysztof Kozlowski).
> - Added unevaluatedProperties descriptor (suggested by Krzysztof Kozlowski).
> - Added "address-cells" and "size-cells" properties to "switches".
> 
>  .../display/bridge/analogix,anx7625.yaml      | 63 +++++++++++++++++++
>  1 file changed, 63 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml
> index 35a48515836e..cb4a23391244 100644
> --- a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml
> +++ b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml
> @@ -105,6 +105,33 @@ properties:
>        - port@0
>        - port@1
>  
> +  switches:
> +    type: object
> +    description: Set of switches controlling DisplayPort traffic on
> +      outgoing RX/TX lanes to Type C ports.
> +    unevaluatedProperties: false

This should be additionalProperties:false.

> +
> +    properties:
> +      "#address-cells":
> +        const: 1
> +
> +      "#size-cells":
> +        const: 0
> +
> +    patternProperties:
> +      'switch@[01]':

You also need ^ and $. Please use the same quotes as in other places
(here is ' but few lines above ")

> +        $ref: /schemas/usb/typec-switch.yaml#

You need unevaluatedProperties:false on this level.

> +
> +        properties:
> +          reg:
> +            maxItems: 1
> +
> +        required:
> +          - reg
> +
> +    required:
> +      - switch@0
> +


Best regards,
Krzysztof

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