[PATCH] dt-bindings: display: st,stm32-dsi: Handle data-lanes in DSI port node

[Marek Vasut]

Handle 'data-lanes' property of the DSI output endpoint, it is possible
to describe DSI link with 1 or 2 data lanes this way.

Signed-off-by: Marek Vasut <marex at denx.de>
---
Cc: Alexandre Torgue <alexandre.torgue at foss.st.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
Cc: Maxime Coquelin <mcoquelin.stm32 at gmail.com>
Cc: Philippe Cornu <philippe.cornu at foss.st.com>
Cc: Rob Herring <robh+dt at kernel.org>
Cc: Yannick Fertre <yannick.fertre at foss.st.com>
Cc: devicetree at vger.kernel.org
Cc: dri-devel at lists.freedesktop.org
Cc: linux-stm32 at st-md-mailman.stormreply.com
To: linux-arm-kernel at lists.infradead.org
---
 .../bindings/display/st,stm32-dsi.yaml          | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/st,stm32-dsi.yaml b/Documentation/devicetree/bindings/display/st,stm32-dsi.yaml
index 54f67cb510401..c488308d7be13 100644
--- a/Documentation/devicetree/bindings/display/st,stm32-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/st,stm32-dsi.yaml
@@ -58,9 +58,20 @@ properties:
           DSI input port node, connected to the ltdc rgb output port.
 
       port at 1:
-        $ref: /schemas/graph.yaml#/properties/port
-        description:
-          DSI output port node, connected to a panel or a bridge input port"
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: |
+          DSI output port node, connected to a panel or a bridge input port.
+        properties:
+          endpoint:
+            $ref: /schemas/media/video-interfaces.yaml#
+            unevaluatedProperties: false
+            properties:
+              data-lanes:
+                minItems: 1
+                items:
+                  - const: 1
+                  - const: 2
 
 required:
   - "#address-cells"
-- 
2.35.1