[PATCH v3 1/4] dt-bindings: lcdif: Add endpoint bus-width property

[Alexander Stein]

Am Donnerstag, 13. August 2026, 10:34:02 CEST schrieb Francesco Dolcini:
> On Thu, Aug 13, 2026 at 10:10:43AM +0200, Krzysztof Kozlowski wrote:
> > On Wed, Aug 12, 2026 at 03:29:49PM +0200, Francesco Dolcini wrote:
> > > From: Francesco Dolcini <francesco.dolcini at toradex.com>
> > > 
> > > The DPI output of the LCD interface can be configured with a bus width
> > > of 16, 18, or 24 bits. Introduce a bus-width property to the output
> > > endpoint, specifying the number of parallel RGB bits connected.
> > > 
> > > Signed-off-by: Francesco Dolcini <francesco.dolcini at toradex.com>
> > > ---
> > > v3: use video-interfaces.yaml
> > > v2: use the common bus-width property instead of the legacy interface-pix-fmt
> > > ---
> > >  Documentation/devicetree/bindings/display/fsl,lcdif.yaml | 9 +++++++++
> > >  1 file changed, 9 insertions(+)
> > > 
> > > diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > > index 2dd0411ec651..1f3daf002707 100644
> > > --- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > > +++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > > @@ -71,6 +71,15 @@ properties:
> > >      $ref: /schemas/graph.yaml#/properties/port
> > >      description: The LCDIF output port
> > >  
> > > +    properties:
> > > +      endpoint:
> > > +        $ref: /schemas/media/video-interfaces.yaml
> > 
> > This won't work, you need to test your DTS. The port schema does not
> > allow video-interfaces properties. You need port-base, like in every
> > other case.
> 
> Thanks for the review Krzysztof
> 
> Given my testing was not ok, and I am not sure what I did wrong exactly
> on my tests, is this the change I should do?
> 
> diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> index 1f3daf002707..89cea0c14cf1 100644
> --- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> +++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> @@ -68,7 +68,8 @@ properties:
>      maxItems: 1
>  
>    port:
> -    $ref: /schemas/graph.yaml#/properties/port
> +    $ref: /schemas/graph.yaml#/$defs/port-base
> +    unevaluatedProperties: false
>      description: The LCDIF output port

With that change:
Tested-by: Alexander Stein <alexander.stein at ew.tq-group.com>

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