On 1/28/26 12:15, Hongyang Zhao wrote:
The LT9611 has two DSI input ports (Port A and Port B). Update the
binding to clearly document the port mapping and allow using Port B
alone when DSI is physically connected to Port B only.

Changes:
- Clarify port@0 corresponds to DSI Port A input
- Clarify port@1 corresponds to DSI Port B input
- Change port requirement from mandatory port@0 to anyOf port@0/port@1,
   allowing either port to be used independently

Signed-off-by: Hongyang Zhao <[email protected]>
Reviewed-by: Roger Shimizu <[email protected]>
---
  .../bindings/display/bridge/lontium,lt9611.yaml           | 15 +++++++++++----
  1 file changed, 11 insertions(+), 4 deletions(-)

diff --git 
a/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml 
b/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml
index 655db8cfdc25..429a06057ae8 100644
--- a/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml
@@ -44,21 +44,28 @@ properties:
        port@0:
          $ref: /schemas/graph.yaml#/properties/port
          description:
-          Primary MIPI port-1 for MIPI input
+          DSI Port A input. directly drives the display, or works in
+          combination with Port B for higher resolution displays.
port@1:
          $ref: /schemas/graph.yaml#/properties/port
          description:
-          Additional MIPI port-2 for MIPI input, used in combination
-          with primary MIPI port-1 to drive higher resolution displays
+          DSI Port B input. Can be used alone if DSI is physically
+          connected to Port B, or in combination with Port A for higher
+          resolution displays.
port@2:
          $ref: /schemas/graph.yaml#/properties/port
          description:
            HDMI port for HDMI output
+ anyOf:
+      - required:
+          - port@0
+      - required:
+          - port@1
+
      required:
-      - port@0
        - port@2
required:


Reviewed-by: Neil Armstrong <[email protected]>

Thanks,
Neil

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