[RESEND PATCH v4 3/3] dt-bindings: display: novatek, nt36523: define ports

[Krzysztof Kozlowski]

The panel-common schema does not define what "ports" property is, so
bring the definition by referencing the panel-common-dual.yaml. Panels
can be single- or dual-link, depending on the compatible, thus add
if:then:else: block narrowing ports per variant.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
Reviewed-by: Rob Herring <robh at kernel.org>

---

Changes since v3:
1. Rb tag

Changes since v2:
1. Use panel-common-dual.
2. Add if:then:else:

Changes since v1:
1. Rework to add ports to device schema, not to panel-common.
---
 .../display/panel/novatek,nt36523.yaml        | 25 +++++++++++++++----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml
index 5f7e4c486094..bbeea8cfa5fb 100644
--- a/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml
+++ b/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml
@@ -14,9 +14,6 @@ description: |
   panels. Support video mode panels from China Star Optoelectronics
   Technology (CSOT) and BOE Technology.
 
-allOf:
-  - $ref: panel-common.yaml#
-
 properties:
   compatible:
     oneOf:
@@ -38,7 +35,6 @@ properties:
     description: regulator that supplies the I/O voltage
 
   reg: true
-  ports: true
   rotation: true
   backlight: true
 
@@ -47,7 +43,26 @@ required:
   - reg
   - vddio-supply
   - reset-gpios
-  - ports
+
+allOf:
+  - $ref: panel-common-dual.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - novatek,nt36523w
+    then:
+      properties:
+        ports:
+          properties:
+            port at 1: false
+    else:
+      properties:
+        port: false
+        ports:
+          required:
+            - port at 1
 
 unevaluatedProperties: false
 
-- 
2.34.1