Update the AM65x DSS bindings to support AM62L which has a single video
port. Add conditional constraints for AM62L.

Signed-off-by: Swamil Jain <[email protected]>
---
 .../bindings/display/ti/ti,am65x-dss.yaml     | 95 +++++++++++++++----
 1 file changed, 76 insertions(+), 19 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml 
b/Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml
index 38fcee91211e..ce39690df4e5 100644
--- a/Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml
+++ b/Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml
@@ -36,34 +36,50 @@ properties:
   reg:
     description:
       Addresses to each DSS memory region described in the SoC's TRM.
-    items:
-      - description: common DSS register area
-      - description: VIDL1 light video plane
-      - description: VID video plane
-      - description: OVR1 overlay manager for vp1
-      - description: OVR2 overlay manager for vp2
-      - description: VP1 video port 1
-      - description: VP2 video port 2
-      - description: common1 DSS register area
+    oneOf:
+      - items:
+          - description: common DSS register area
+          - description: VIDL1 light video plane
+          - description: VID video plane
+          - description: OVR1 overlay manager for vp1
+          - description: OVR2 overlay manager for vp2
+          - description: VP1 video port 1
+          - description: VP2 video port 2
+          - description: common1 DSS register area
+      - items:
+          - description: common DSS register area
+          - description: VIDL1 light video plane
+          - description: OVR1 overlay manager for vp1
+          - description: VP1 video port 1
+          - description: common1 DSS register area
 
   reg-names:
-    items:
-      - const: common
-      - const: vidl1
-      - const: vid
-      - const: ovr1
-      - const: ovr2
-      - const: vp1
-      - const: vp2
-      - const: common1
+    oneOf:
+      - items:
+          - const: common
+          - const: vidl1
+          - const: vid
+          - const: ovr1
+          - const: ovr2
+          - const: vp1
+          - const: vp2
+          - const: common1
+      - items:
+          - const: common
+          - const: vidl1
+          - const: ovr1
+          - const: vp1
+          - const: common1
 
   clocks:
+    minItems: 2
     items:
       - description: fck DSS functional clock
       - description: vp1 Video Port 1 pixel clock
       - description: vp2 Video Port 2 pixel clock
 
   clock-names:
+    minItems: 2
     items:
       - const: fck
       - const: vp1
@@ -84,7 +100,8 @@ properties:
     maxItems: 1
     description: phandle to the associated power domain
 
-  dma-coherent: true
+  dma-coherent:
+    type: boolean
 
   ports:
     $ref: /schemas/graph.yaml#/properties/ports
@@ -195,6 +212,46 @@ allOf:
             port@0:
               properties:
                 endpoint@1: false
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ti,am62l-dss
+    then:
+      properties:
+        clock-names:
+          maxItems: 2
+        clocks:
+          maxItems: 2
+        reg:
+          maxItems: 5
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ti,am62l-dss
+    then:
+      properties:
+        reg-names:
+          items:
+            - const: common
+            - const: vidl1
+            - const: ovr1
+            - const: vp1
+            - const: common1
+    else:
+      properties:
+        reg-names:
+          items:
+            - const: common
+            - const: vidl1
+            - const: vid
+            - const: ovr1
+            - const: ovr2
+            - const: vp1
+            - const: vp2
+            - const: common1
 
 required:
   - compatible

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