[v2] media: dt-bindings: media: renesas,csi2: Update data-lanes property

  CSI-2 (CSI4LNK0) on R-Car and RZ/G2 supports 4-lane mode which is already
handled by rcar-csi2.c driver. This patch updates the data-lanes property
to describe the same.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
Hi All,

Instead of adding uniqueItems:true into SoC binding doc's I think we could
add this in video-interfaces.yaml for data-lanes property. Any thoughts on this?

Cheers,
Prabhakar

v1->v2
* Dropped const items
* Added uniqueItems

v1:
https://lore.kernel.org/lkml/20220118163413.ge2b4g75yhfqvq3x@uno.localdomain/T/
---
 Documentation/devicetree/bindings/media/renesas,csi2.yaml | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
  

Hello Prabhakar

On Thu, Jan 20, 2022 at 01:25:53AM +0000, Lad Prabhakar wrote:
> CSI-2 (CSI4LNK0) on R-Car and RZ/G2 supports 4-lane mode which is already
> handled by rcar-csi2.c driver. This patch updates the data-lanes property
> to describe the same.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
> Hi All,
>
> Instead of adding uniqueItems:true into SoC binding doc's I think we could
> add this in video-interfaces.yaml for data-lanes property. Any thoughts on this?
>

As repeating items are not allowed I think it's a good idea.
In the meantime this patch looks good to me

Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>

Thanks
  j

> Cheers,
> Prabhakar
>
> v1->v2
> * Dropped const items
> * Added uniqueItems
>
> v1:
> https://lore.kernel.org/lkml/20220118163413.ge2b4g75yhfqvq3x@uno.localdomain/T/
> ---
>  Documentation/devicetree/bindings/media/renesas,csi2.yaml | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/media/renesas,csi2.yaml b/Documentation/devicetree/bindings/media/renesas,csi2.yaml
> index e6a036721082..a5a1b570025a 100644
> --- a/Documentation/devicetree/bindings/media/renesas,csi2.yaml
> +++ b/Documentation/devicetree/bindings/media/renesas,csi2.yaml
> @@ -67,7 +67,11 @@ properties:
>                  maxItems: 1
>
>                data-lanes:
> -                maxItems: 1
> +                minItems: 1
> +                maxItems: 4
> +                uniqueItems: true
> +                items:
> +                  maximum: 4
>
>              required:
>                - clock-lanes
> --
> 2.17.1
>
  

On Thu, Jan 20, 2022 at 11:40:29AM +0100, Jacopo Mondi wrote:
> Hello Prabhakar
> 
> On Thu, Jan 20, 2022 at 01:25:53AM +0000, Lad Prabhakar wrote:
> > CSI-2 (CSI4LNK0) on R-Car and RZ/G2 supports 4-lane mode which is already
> > handled by rcar-csi2.c driver. This patch updates the data-lanes property
> > to describe the same.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > ---
> > Hi All,
> >
> > Instead of adding uniqueItems:true into SoC binding doc's I think we could
> > add this in video-interfaces.yaml for data-lanes property. Any thoughts on this?
> >
> 
> As repeating items are not allowed I think it's a good idea.

Could this be put into the schema instead? The same holds true for all
devices.
  

Hi Sakari and Jacopo,

On Thu, Jan 20, 2022 at 10:41 AM Sakari Ailus
<sakari.ailus@linux.intel.com> wrote:
>
> On Thu, Jan 20, 2022 at 11:40:29AM +0100, Jacopo Mondi wrote:
> > Hello Prabhakar
> >
> > On Thu, Jan 20, 2022 at 01:25:53AM +0000, Lad Prabhakar wrote:
> > > CSI-2 (CSI4LNK0) on R-Car and RZ/G2 supports 4-lane mode which is already
> > > handled by rcar-csi2.c driver. This patch updates the data-lanes property
> > > to describe the same.
> > >
> > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > > ---
> > > Hi All,
> > >
> > > Instead of adding uniqueItems:true into SoC binding doc's I think we could
> > > add this in video-interfaces.yaml for data-lanes property. Any thoughts on this?
> > >
> >
> > As repeating items are not allowed I think it's a good idea.
>
> Could this be put into the schema instead? The same holds true for all
> devices.
>
I just came across this patch [0] which does this! Hopefully this will
get merged soon. I'll resend a v3 dropping uniqueItems from
renesas,csi2.yaml.

[0] https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20211223191615.17803-13-p.yadav@ti.com/

Cheers,
Prabhakar