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

[Alexander Stein <alexander.stein@ew.tq-group.com>]

Am Donnerstag, 13. August 2026, 11:03:06 CEST schrieb Krzysztof Kozlowski:
> On 13/08/2026 10:56, Alexander Stein wrote:
> > 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@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@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?
> 
> Yes
> 
> >>
> >> 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@ew.tq-group.com>
> 
> Please do not. Build testing is not testing (in the meaning of
> "Tested-by" tag), otherwise where is Rob's tested-by tag for all the
> patches he build tested?

Well, I tested this on actual hardware, see patch 2. But then this
is irrelevant for for dt-bindings. So let's go with:
Acked-by: Alexander Stein <alexander.stein@ew.tq-group.com>

Thanks and best regards,
Alexander
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