Re: [PATCH 1/6] dt-bindings: media: rcar-vin: Describe optional ep properties

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On Wed, May 23, 2018 at 2:38 PM, Laurent Pinchart
<laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
> Hi Rob,
>
> On Wednesday, 23 May 2018 19:29:47 EEST Rob Herring wrote:
>> On Wed, May 16, 2018 at 06:32:27PM +0200, Jacopo Mondi wrote:
>> > Describe the optional endpoint properties for endpoint nodes of port@0
>> > and port@1 of the R-Car VIN driver device tree bindings documentation.
>> >
>> > Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
>> > ---
>> >
>> >  Documentation/devicetree/bindings/media/rcar_vin.txt | 13 ++++++++++++-
>> >  1 file changed, 12 insertions(+), 1 deletion(-)
>> >
>> > diff --git a/Documentation/devicetree/bindings/media/rcar_vin.txt
>> > b/Documentation/devicetree/bindings/media/rcar_vin.txt index
>> > a19517e1..c53ce4e 100644
>> > --- a/Documentation/devicetree/bindings/media/rcar_vin.txt
>> > +++ b/Documentation/devicetree/bindings/media/rcar_vin.txt
>> > @@ -53,6 +53,16 @@ from local SoC CSI-2 receivers (port1) depending on
>> > SoC.
>> >
>> >        from external SoC pins described in video-interfaces.txt[1].
>> >        Describing more then one endpoint in port 0 is invalid. Only VIN
>> >        instances that are connected to external pins should have port 0.
>> >
>> > +
>> > +      - Optional properties for endpoint nodes of port@0:
>> > +        - hsync-active: active state of the HSYNC signal, 0/1 for
>> > LOW/HIGH
>> > +     respectively. Default is active high.
>> > +        - vsync-active: active state of the VSYNC signal, 0/1 for
>> > LOW/HIGH
>> > +     respectively. Default is active high.
>> > +
>> > +   If both HSYNC and VSYNC polarities are not specified, embedded
>> > +   synchronization is selected.
>>
>> No need to copy-n-paste from video-interfaces.txt. Just "see
>> video-interfaces.txt" for the description is fine.
>
> I would still explicitly list the properties that apply to this binding. I
> agree that there's no need to copy & paste the description of those properties
> though.

Yes, that's what I meant. List each property with "see
video-interfaces.txt" for the description of each.

Rob



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