linux-kernel - Re: [PATCH v5 1/6] dt-bindings: add bindings for USB physical connector

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Message-ID: <20180305221458.lw5a4wznwjkbubox@rob-hp-laptop>
Date:   Mon, 5 Mar 2018 16:14:58 -0600
From:   Rob Herring <robh@...nel.org>
To:     Andrzej Hajda <a.hajda@...sung.com>
Cc:     "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, Mark Rutland <mark.rutland@....com>,
        linux-samsung-soc@...r.kernel.org,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [PATCH v5 1/6] dt-bindings: add bindings for USB physical
 connector

On Tue, Feb 27, 2018 at 08:11:29AM +0100, Andrzej Hajda wrote:
> These bindings allow to describe most known standard USB connectors
> and it should be possible to extend it if necessary.
> USB connectors, beside USB can be used to route other protocols,
> for example UART, Audio, MHL. In such case every device passing data
> through the connector should have appropriate graph bindings.
> 
> Signed-off-by: Andrzej Hajda <a.hajda@...sung.com>
> ---
> v4:
> - improved 'type' description (Rob),
> - improved description of 2nd example (Rob).
> v3:
> - removed MHL port (samsung connector will have separate bindings),
> - added 2nd example for USB-C,
> - improved formatting.
> v2:
> - moved connector type(A,B,C) to compatible string (Rob),
> - renamed size property to type (Rob),
> - changed type description to be less confusing (Laurent),
> - removed vendor specific compatibles (implied by graph port number),
> - added requirement of connector being a child of IC (Rob),
> - removed max-mode (subtly suggested by Rob, it should be detected anyway
>   by USB Controller in runtime, downside is that device is not able to
>   report its real capabilities, maybe better would be to make it optional(?)),
> - assigned port numbers to data buses (Rob).
> 
> Regards
> Andrzej
> ---
>  .../bindings/connector/usb-connector.txt           | 75 ++++++++++++++++++++++
>  1 file changed, 75 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/connector/usb-connector.txt

Reviewed-by: Rob Herring <robh@...nel.org>