linux-kernel - Re: [PATCH 1/2] dt-bindings: chrome: Add cros-ec-typec mux props

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Date:   Thu, 30 Apr 2020 00:13:17 +0200
From:   Enric Balletbo i Serra <enric.balletbo@...labora.com>
To:     Prashant Malani <pmalani@...omium.org>,
        linux-kernel@...r.kernel.org
Cc:     heikki.krogerus@...ux.intel.com, twawrzynczak@...omium.org,
        Benson Leung <bleung@...omium.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, Guenter Roeck <groeck@...omium.org>,
        Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH 1/2] dt-bindings: chrome: Add cros-ec-typec mux props

Hi Prashant,

Thank you for the patch.

On 23/4/20 0:22, Prashant Malani wrote:
> Add properties for mode, orientation and USB data role switches for
> Type C connectors. When available, these will allow the Type C connector
> class port driver to configure the various switches according to USB PD
> information (like orientation, alt mode etc.) provided by the Chrome OS
> EC controller.
> 
> Signed-off-by: Prashant Malani <pmalani@...omium.org>

This patch still needs a review from Rob.

> ---
>  .../bindings/chrome/google,cros-ec-typec.yaml | 27 ++++++++++++++++++-
>  1 file changed, 26 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml b/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml
> index 6d7396ab8bee..b5814640aa32 100644
> --- a/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml
> +++ b/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml
> @@ -21,7 +21,21 @@ properties:
>      const: google,cros-ec-typec
>  
>    connector:
> -    $ref: /schemas/connector/usb-connector.yaml#
> +    allOf:
> +      - $ref: /schemas/connector/usb-connector.yaml#
> +      - type: object
> +        properties:
> +          mode-switch:
> +            description: Reference to a DT node for the USB Type C Multiplexer
> +              controlling the data lines routing for this connector.
> +
> +          orientation-switch:
> +            description: Reference to a DT node for the USB Type C orientation
> +              switch for this connector.
> +
> +          usb-role-switch:
> +            description: Reference to a DT node for the USB Data role switch
> +              for this connector.
>  
>  required:
>    - compatible
> @@ -49,6 +63,17 @@ examples:
>              data-role = "dual";
>              try-power-role = "source";
>            };
> +
> +          connector@1 {
> +            compatible = "usb-c-connector";
> +            reg = <1>;
> +            power-role = "dual";
> +            data-role = "host";
> +            try-power-role = "source";
> +            mode-switch = <&typec_mux>;
> +            orientation-switch = <&typec_orientation_switch>;
> +            usb-role-switch = <&typec_mux>;
> +          };
>          };
>        };
>      };
>