Re: [PATCH] ARM: at91/dt: ov2640: add hsync/vsync-active property

[Josh Wu]

Hi, Nicolas

On 9/18/2015 10:09 PM, Nicolas Ferre wrote:
> Le 18/09/2015 13:28, Josh Wu a écrit :
> > On at91sam9x5ek/at91sam9m10g45ek/sama5d3xek boards, we use the parallel
> > connection for ov2640. So we must set the hsync/vsync property (1 means
> > active high).
> > Otherwise, the connection would be seen as BT.656 or BT.1120.
> >
> > Signed-off-by: Josh Wu <josh.wu@xxxxxxxxx>
> Hi Josh,
>
> Does this patch apply because of the new enhancement that you had
> proposed in "media: atmel-isi: parse the DT parameters for
> vsync/hsync/pixclock polarity" or does it apply even before?
> Is it a fix that applies to older kernels?
It's is a fix, according to the dt binding of video interface.
So it should be applied before:

"media: atmel-isi: parse the DT parameters for
vsync/hsync/pixclock polarity".


it has no impact in older kernel as the driver doesn't parse that 
property yet.

> So, should I wait for the enhancements to enter media git tree or can I
> take them anyway?

yes, you can take it without waiting for the media tree. Thanks.

Best Regards,
Josh Wu

> Bye,
>
> > ---
> >
> >   arch/arm/boot/dts/at91sam9m10g45ek.dts | 2 ++
> >   arch/arm/boot/dts/at91sam9x5ek.dtsi    | 2 ++
> >   arch/arm/boot/dts/sama5d3xmb.dtsi      | 2 ++
> >   3 files changed, 6 insertions(+)
> >
> > diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts
> > index d1ae60a..9d16ef8 100644
> > --- a/arch/arm/boot/dts/at91sam9m10g45ek.dts
> > +++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts
> > @@ -198,6 +198,8 @@
> >   					isi_0: endpoint {
> >   						remote-endpoint = <&ov2640_0>;
> >   						bus-width = <8>;
> > +						vsync-active = <1>;
> > +						hsync-active = <1>;
> >   					};
> >   				};
> >   			};
> > diff --git a/arch/arm/boot/dts/at91sam9x5ek.dtsi b/arch/arm/boot/dts/at91sam9x5ek.dtsi
> > index d237c46..479f200 100644
> > --- a/arch/arm/boot/dts/at91sam9x5ek.dtsi
> > +++ b/arch/arm/boot/dts/at91sam9x5ek.dtsi
> > @@ -66,6 +66,8 @@
> >   					isi_0: endpoint@0 {
> >   						remote-endpoint = <&ov2640_0>;
> >   						bus-width = <8>;
> > +						vsync-active = <1>;
> > +						hsync-active = <1>;
> >   					};
> >   				};
> >   			};
> > diff --git a/arch/arm/boot/dts/sama5d3xmb.dtsi b/arch/arm/boot/dts/sama5d3xmb.dtsi
> > index 83bee7a..8901042 100644
> > --- a/arch/arm/boot/dts/sama5d3xmb.dtsi
> > +++ b/arch/arm/boot/dts/sama5d3xmb.dtsi
> > @@ -87,6 +87,8 @@
> >   					isi_0: endpoint {
> >   						remote-endpoint = <&ov2640_0>;
> >   						bus-width = <8>;
> > +						vsync-active = <1>;
> > +						hsync-active = <1>;
> >   					};
> >   				};
> >   			};

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