Document the optional port node, which is required for correctly modeling
a dual-mode panel.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
---
 .../bindings/display/tegra/nvidia,tegra20-dsi.yaml          | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml
index 59e1dc0813e7..0f4837648d17 100644
--- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml
@@ -83,6 +83,12 @@ properties:
       gang up with in order to support up to 8 data lanes
     $ref: /schemas/types.yaml#/definitions/phandle
 
+  port:
+    description: specifies the connection port for the dual-mode panel
+      and is required only when the panel is operating in dual-mode
+      configuration.
+    $ref: /schemas/graph.yaml#/properties/port
+
 allOf:
   - $ref: ../dsi-controller.yaml#
   - if:
-- 
2.51.0

On Thu, Mar 05, 2026 at 06:10:34PM +0200, Svyatoslav Ryhel wrote:
> Document the optional port node, which is required for correctly modeling
> a dual-mode panel.

Dual mode as in command mode and sync mode? Or do you mean dual link 
like panel-common-dual.yaml defines?

> 
> Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
> ---
>  .../bindings/display/tegra/nvidia,tegra20-dsi.yaml          | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml
> index 59e1dc0813e7..0f4837648d17 100644
> --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml
> +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml
> @@ -83,6 +83,12 @@ properties:
>        gang up with in order to support up to 8 data lanes
>      $ref: /schemas/types.yaml#/definitions/phandle
>  
> +  port:
> +    description: specifies the connection port for the dual-mode panel
> +      and is required only when the panel is operating in dual-mode
> +      configuration.
> +    $ref: /schemas/graph.yaml#/properties/port
> +
>  allOf:
>    - $ref: ../dsi-controller.yaml#
>    - if:
> -- 
> 2.51.0
>

чт, 12 бер. 2026 р. о 16:57 Rob Herring <robh@kernel.org> пише:
>
> On Thu, Mar 05, 2026 at 06:10:34PM +0200, Svyatoslav Ryhel wrote:
> > Document the optional port node, which is required for correctly modeling
> > a dual-mode panel.
>
> Dual mode as in command mode and sync mode? Or do you mean dual link
> like panel-common-dual.yaml defines?
>

Dual link like in panel-common-dual but that panel-common-dual should
not be suitable for DSI controller/host. Tegra DSI expects panel to be
defined as in dsi-controller.yaml while this port node is solely to
cover dual-link mode panels.

Command mode and video/sync mode usually refer to how driver should
work and usually are not mentioned in the schema.

> >
> > Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
> > ---
> >  .../bindings/display/tegra/nvidia,tegra20-dsi.yaml          | 6 ++++++
> >  1 file changed, 6 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml
> > index 59e1dc0813e7..0f4837648d17 100644
> > --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml
> > +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml
> > @@ -83,6 +83,12 @@ properties:
> >        gang up with in order to support up to 8 data lanes
> >      $ref: /schemas/types.yaml#/definitions/phandle
> >
> > +  port:
> > +    description: specifies the connection port for the dual-mode panel
> > +      and is required only when the panel is operating in dual-mode
> > +      configuration.
> > +    $ref: /schemas/graph.yaml#/properties/port
> > +
> >  allOf:
> >    - $ref: ../dsi-controller.yaml#
> >    - if:
> > --
> > 2.51.0
> >