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

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* [PATCH 1/1] dt-bindings: display: imx: add deprecated property 'port' and 'display-timings'
@ 2026-05-11 22:09 Frank Li
  2026-05-12 16:47 ` Conor Dooley
  2026-05-13 16:45 ` Rob Herring (Arm)
  0 siblings, 2 replies; 5+ messages in thread
From: Frank Li @ 2026-05-11 22:09 UTC (permalink / raw)
  To: Philipp Zabel, Maarten Lankhorst, Maxime Ripard,
	Thomas Zimmermann, David Airlie, Simona Vetter, Rob Herring,
	Krzysztof Kozlowski, Conor Dooley, Frank Li, Sascha Hauer,
	Pengutronix Kernel Team, Fabio Estevam,
	open list:DRM DRIVERS FOR FREESCALE IMX 5/6,
	open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
	open list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE,
	moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE,
	open list
  Cc: imx

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

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


^ permalink raw reply related	[flat|nested] 5+ messages in thread

* Re: [PATCH 1/1] dt-bindings: display: imx: add deprecated property 'port' and 'display-timings'
  2026-05-11 22:09 [PATCH 1/1] dt-bindings: display: imx: add deprecated property 'port' and 'display-timings' Frank Li
@ 2026-05-12 16:47 ` Conor Dooley
  2026-05-12 18:21   ` Frank Li
  2026-05-13 16:45 ` Rob Herring (Arm)
  1 sibling, 1 reply; 5+ messages in thread
From: Conor Dooley @ 2026-05-12 16:47 UTC (permalink / raw)
  To: Frank Li
  Cc: Philipp Zabel, Maarten Lankhorst, Maxime Ripard,
	Thomas Zimmermann, David Airlie, Simona Vetter, Rob Herring,
	Krzysztof Kozlowski, Conor Dooley, Sascha Hauer,
	Pengutronix Kernel Team, Fabio Estevam,
	open list:DRM DRIVERS FOR FREESCALE IMX 5/6,
	open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
	open list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE,
	moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE,
	open list

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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?

> 
> 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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^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH 1/1] dt-bindings: display: imx: add deprecated property 'port' and 'display-timings'
  2026-05-12 16:47 ` Conor Dooley
@ 2026-05-12 18:21   ` Frank Li
  2026-05-12 20:25     ` Conor Dooley
  0 siblings, 1 reply; 5+ messages in thread
From: Frank Li @ 2026-05-12 18:21 UTC (permalink / raw)
  To: Conor Dooley
  Cc: Philipp Zabel, Maarten Lankhorst, Maxime Ripard,
	Thomas Zimmermann, David Airlie, Simona Vetter, Rob Herring,
	Krzysztof Kozlowski, Conor Dooley, Sascha Hauer,
	Pengutronix Kernel Team, Fabio Estevam,
	open list:DRM DRIVERS FOR FREESCALE IMX 5/6,
	open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
	open list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE,
	moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE,
	open list

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
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
> >



^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH 1/1] dt-bindings: display: imx: add deprecated property 'port' and 'display-timings'
  2026-05-12 18:21   ` Frank Li
@ 2026-05-12 20:25     ` Conor Dooley
  0 siblings, 0 replies; 5+ messages in thread
From: Conor Dooley @ 2026-05-12 20:25 UTC (permalink / raw)
  To: Frank Li
  Cc: Philipp Zabel, Maarten Lankhorst, Maxime Ripard,
	Thomas Zimmermann, David Airlie, Simona Vetter, Rob Herring,
	Krzysztof Kozlowski, Conor Dooley, Sascha Hauer,
	Pengutronix Kernel Team, Fabio Estevam,
	open list:DRM DRIVERS FOR FREESCALE IMX 5/6,
	open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
	open list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE,
	moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE,
	open list

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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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^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH 1/1] dt-bindings: display: imx: add deprecated property 'port' and 'display-timings'
  2026-05-11 22:09 [PATCH 1/1] dt-bindings: display: imx: add deprecated property 'port' and 'display-timings' Frank Li
  2026-05-12 16:47 ` Conor Dooley
@ 2026-05-13 16:45 ` Rob Herring (Arm)
  1 sibling, 0 replies; 5+ messages in thread
From: Rob Herring (Arm) @ 2026-05-13 16:45 UTC (permalink / raw)
  To: Frank Li
  Cc: linux-kernel, imx, Thomas Zimmermann, Philipp Zabel,
	Simona Vetter, devicetree, linux-arm-kernel,
	Pengutronix Kernel Team, Fabio Estevam, David Airlie,
	Sascha Hauer, Maxime Ripard, Maarten Lankhorst, dri-devel,
	Krzysztof Kozlowski, Conor Dooley


On Mon, 11 May 2026 18:09:24 -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
> 
> Signed-off-by: Frank Li <Frank.Li@nxp.com>
> ---
>  .../display/imx/fsl,imx-parallel-display.yaml         | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 

Applied, thanks!


^ permalink raw reply	[flat|nested] 5+ messages in thread

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2026-05-11 22:09 [PATCH 1/1] dt-bindings: display: imx: add deprecated property 'port' and 'display-timings' Frank Li
2026-05-12 16:47 ` Conor Dooley
2026-05-12 18:21   ` Frank Li
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