Re: [PATCH v13 1/6] dt-bindings: media: add pclk-sample dual edge property

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Hi, Jitao:

I agree with Neil, so please base on Boris' effort to negotiate with bridge.

Regards,
Chun-Kuang Hu

Neil Armstrong <narmstrong@xxxxxxxxxxxx> 於 2020年3月11日 週三 下午9:53寫道:

>
> Hi,
>
> On 11/03/2020 08:18, Jitao Shi wrote:
> > Some chips's sample mode are rising, falling and dual edge (both
> > falling and rising edge).
> > Extern the pclk-sample property to support dual edge.
> >
> > Acked-by: Rob Herring <robh@xxxxxxxxxx>
> > Reviewed-by: CK Hu <ck.hu@xxxxxxxxxxxx>
> > Signed-off-by: Jitao Shi <jitao.shi@xxxxxxxxxxxx>
> > ---
> >  Documentation/devicetree/bindings/media/video-interfaces.txt | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt
> > index f884ada0bffc..da9ad24935db 100644
> > --- a/Documentation/devicetree/bindings/media/video-interfaces.txt
> > +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt
> > @@ -118,8 +118,8 @@ Optional endpoint properties
> >  - data-enable-active: similar to HSYNC and VSYNC, specifies the data enable
> >    signal polarity.
> >  - field-even-active: field signal level during the even field data transmission.
> > -- pclk-sample: sample data on rising (1) or falling (0) edge of the pixel clock
> > -  signal.
> > +- pclk-sample: sample data on rising (1), falling (0) or both rising and
> > +  falling (2) edge of the pixel clock signal.
> >  - sync-on-green-active: active state of Sync-on-green (SoG) signal, 0/1 for
> >    LOW/HIGH respectively.
> >  - data-lanes: an array of physical data lane indexes. Position of an entry
> >
>
> This changes the bus format, but we recently introduced a bus format negociation
> between bridges to avoid adding such properties into DT, and make bus format setup
> dynamic between an encoder and a bridge.
>
> It would be great to use that instead.
>
> Neil
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