Re: [PATCH 1/1] dt-bindings: display: imx: add deprecated property 'port' and 'display-timings'

[Conor Dooley <conor@kernel.org>]

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On Tue, May 12, 2026 at 02:21:43PM -0400, Frank Li wrote:
> On Tue, May 12, 2026 at 05:47:11PM +0100, Conor Dooley wrote:
> > On Mon, May 11, 2026 at 06:09:24PM -0400, Frank Li wrote:
> > > Add deprecated property 'port' and 'display-timings' for i.MX5 SoCs (over
> > > 15 years) to fix below CHECK_DTBS warnings:
> > >   arm/boot/dts/nxp/imx/imx51-apf51dev.dtb: disp1 (fsl,imx-parallel-display): 'display-timings', 'port' do not match any of the regexes: '^pinctrl-[0-9]+$'
> > >         from schema $id: http://devicetree.org/schemas/display/imx/fsl,imx-parallel-display.yaml
> >
> > Instead of documenting the deprecated properties, could this
> > device/devicetree be converted to non-deprecated properties?
> 
> Change dts will cause break back compatiblity. This is too old chips and

How would changing the dts impact backwards compatibility? That argument
doesn't make sense to me, I am of course not suggesting removing support
from these properties from the driver.

I do accept that the argument of lacking info on the panel.
Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable

> I have not information panel's detail information.
> 
> Frank
> 
> >
> > >
> > > Signed-off-by: Frank Li <Frank.Li@nxp.com>
> > > ---
> > >  .../display/imx/fsl,imx-parallel-display.yaml         | 11 +++++++++++
> > >  1 file changed, 11 insertions(+)
> > >
> > > diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx-parallel-display.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx-parallel-display.yaml
> > > index bbcfe7e2958b7..b0c5869771fae 100644
> > > --- a/Documentation/devicetree/bindings/display/imx/fsl,imx-parallel-display.yaml
> > > +++ b/Documentation/devicetree/bindings/display/imx/fsl,imx-parallel-display.yaml
> > > @@ -42,6 +42,17 @@ properties:
> > >      unevaluatedProperties: false
> > >      description: output port connected to a panel
> > >
> > > +  port:
> > > +    $ref: /schemas/graph.yaml#/properties/port
> > > +    unevaluatedProperties: false
> > > +    deprecated: true
> > > +    description: input port connected to the IPU display interface, see port@0
> > > +
> > > +  display-timings:
> > > +    $ref: /schemas/display/panel/display-timings.yaml#
> > > +    unevaluatedProperties: false
> > > +    deprecated: true
> > > +
> > >  required:
> > >    - compatible
> > >
> > > --
> > > 2.43.0
> > >
> 
> 

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