[PATCH v6 19/19] dt-bindings: usb: intel, keembay-dwc3: Validate DWC3 sub-node

[Serge Semin]

Intel Keem Bay DWC3 compatible DT nodes are supposed to have a DWC USB3
compatible sub-node to describe a fully functioning USB interface. Let's
use the available DWC USB3 DT schema to validate the Intel Keem Bay DWC3
sub-nodes.

Note since the generic DWC USB3 DT node is supposed to be named as generic
USB HCD ("^usb(@.*)?") one we have to accordingly fix the sub-nodes name
regexp and fix the DT node example.

Signed-off-by: Serge Semin <Sergey.Semin at baikalelectronics.ru>
Acked-by: Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad at intel.com>
Reviewed-by: Rob Herring <robh at kernel.org>

---

Changelog v5:
- This is a new patch created for the new Intel Keem Bay bindings file,
  which has been added just recently.

Changelog v6:
- Fix typo in the commit log: Qualcomm sub-node should be called as Intel
  Keem Bay sub-node
---
 .../devicetree/bindings/usb/intel,keembay-dwc3.yaml      | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/intel,keembay-dwc3.yaml b/Documentation/devicetree/bindings/usb/intel,keembay-dwc3.yaml
index dd32c10ce6c7..43b91ab62004 100644
--- a/Documentation/devicetree/bindings/usb/intel,keembay-dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/intel,keembay-dwc3.yaml
@@ -34,11 +34,8 @@ properties:
 # Required child node:
 
 patternProperties:
-  "^dwc3@[0-9a-f]+$":
-    type: object
-    description:
-      A child node must exist to represent the core DWC3 IP block.
-      The content of the node is defined in dwc3.txt.
+  "^usb@[0-9a-f]+$":
+    $ref: snps,dwc3.yaml#
 
 required:
   - compatible
@@ -68,7 +65,7 @@ examples:
           #address-cells = <1>;
           #size-cells = <1>;
 
-          dwc3 at 34000000 {
+          usb at 34000000 {
                 compatible = "snps,dwc3";
                 reg = <0x34000000 0x10000>;
                 interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
-- 
2.29.2