[PATCH v4 17/18] dt-bindings: usb: keystone-dwc3: Validate DWC3 sub-node

[Serge Semin]

TI Keystone DWC3 compatible DT node is supposed to have a DWC USB3
compatible sub-node to describe a fully functioning USB interface.
Since DWC USB3 has now got a DT schema describing its DT node, let's make
sure the TI Keystone DWC3 sub-node passes validation against it.

Signed-off-by: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>

---

Changelog v2:
- Grammar fix: "s/it'/its"
---
 Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml b/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml
index c1b19fc5d0a2..ca7fbe3ed22e 100644
--- a/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml
@@ -64,9 +64,7 @@ properties:
 
 patternProperties:
   "usb@[a-f0-9]+$":
-    type: object
-    description: This is the node representing the DWC3 controller instance
-      Documentation/devicetree/bindings/usb/dwc3.txt
+    $ref: snps,dwc3.yaml#
 
 required:
   - compatible
-- 
2.28.0