diff --git a/Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml b/Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml
index 361e9cae6896..38fcee91211e 100644
--- a/Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml
+++ b/Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml
@@ -84,8 +84,7 @@ properties:
     maxItems: 1
     description: phandle to the associated power domain
 
-  dma-coherent:
-    type: boolean
+  dma-coherent: true
 
   ports:
     $ref: /schemas/graph.yaml#/properties/ports
diff --git a/Documentation/devicetree/bindings/display/ti/ti,j721e-dss.yaml b/Documentation/devicetree/bindings/display/ti/ti,j721e-dss.yaml
index fad7cba58d39..65ae8a1c3998 100644
--- a/Documentation/devicetree/bindings/display/ti/ti,j721e-dss.yaml
+++ b/Documentation/devicetree/bindings/display/ti/ti,j721e-dss.yaml
@@ -103,8 +103,7 @@ properties:
     maxItems: 1
     description: phandle to the associated power domain
 
-  dma-coherent:
-    type: boolean
+  dma-coherent: true
 
   ports:
     $ref: /schemas/graph.yaml#/properties/ports