linux-kernel - Re: [v3 PATCH] dt-binding: usb: add usb-role-switch property

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Date:   Mon, 13 May 2019 12:28:47 -0500
From:   Rob Herring <robh@...nel.org>
To:     Chunfeng Yun <chunfeng.yun@...iatek.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Biju Das <biju.das@...renesas.com>,
        Yu Chen <chenyu56@...wei.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Min Guo <min.guo@...iatek.com>,
        Felipe Balbi <felipe.balbi@...ux.intel.com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>
Subject: Re: [v3 PATCH] dt-binding: usb: add usb-role-switch property

On Wed, 8 May 2019 17:17:44 +0800, Chunfeng Yun wrote:
> Add a property usb-role-switch to tell the driver that use
> USB Role Switch framework to handle the role switch,
> it's useful when the driver has already supported other ways,
> such as extcon framework etc.
> 
> Cc: Biju Das <biju.das@...renesas.com>
> Cc: Yu Chen <chenyu56@...wei.com>
> Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
> ---
> v3:
>     add property type, modify description suggested by Heikki
> 
> v2:
>     describe it in terms of h/w functionality suggested by Rob
> 
> v1:
>     the property is discussed in:
>     [v2,2/7] dt-bindings: usb: renesas_usb3: add usb-role-switch property
>     https://patchwork.kernel.org/patch/10852497/
> 
>     Mediatek and Hisilicon also try to use it:
>     [v4,3/6] dt-bindings: usb: mtu3: add properties about USB Role Switch
>     https://patchwork.kernel.org/patch/10918385/
>     [v4,6/6] usb: mtu3: register a USB Role Switch for dual role mode
>     https://patchwork.kernel.org/patch/10918367/
> 
>     [v6,10/13] usb: dwc3: Registering a role switch in the DRD code
>     https://patchwork.kernel.org/patch/10909981/
> ---
>  Documentation/devicetree/bindings/usb/generic.txt | 4 ++++
>  1 file changed, 4 insertions(+)
> 

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