linux-kernel - Re: [PATCH v4 2/3] dt-bindings: phy: ti,phy-j721e-wiz: Add Type-C dir GPIO

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Date:   Mon, 4 Nov 2019 19:28:45 -0600
From:   Rob Herring <robh@...nel.org>
To:     Roger Quadros <rogerq@...com>
Cc:     kishon@...com, aniljoy@...ence.com, adouglas@...ence.com,
        nsekhar@...com, jsarha@...com, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Roger Quadros <rogerq@...com>,
        Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v4 2/3] dt-bindings: phy: ti,phy-j721e-wiz: Add Type-C
 dir GPIO

On Mon, 28 Oct 2019 12:21:52 +0200, Roger Quadros wrote:
> This is an optional GPIO, if specified will be used to
> swap lane 0 and lane 1 based on GPIO status. This is required
> to achieve plug flip support for USB Type-C.
> 
> Type-C companions typically need some time after the cable is
> plugged before and before they reflect the correct status of
> Type-C plug orientation on the DIR line.
> 
> Type-C Spec specifies CC attachment debounce time (tCCDebounce)
> of 100 ms (min) to 200 ms (max).
> 
> Allow the DT node to specify the time (in ms) that we need
> to wait before sampling the DIR line.
> 
> Signed-off-by: Roger Quadros <rogerq@...com>
> Cc: Rob Herring <robh@...nel.org>
> ---
>  .../bindings/phy/ti,phy-j721e-wiz.yaml          | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 

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