dt-bindings: Add bindings for qmsgq gunyah transport

Add the bindings to describe a device node for the qmsgq gunyah
transport. This device enables communication between VMs through
gunyah message queues.

Change-Id: I4ee9b8b7d7069580a3f43eb9452b17ee13b74805
Signed-off-by: Kishore Kumar Ravi <quic_kiskum@quicinc.com>

bindings/net/qcom-qmsgq-gunyah.yaml

@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/net/qcom-qmsgq-gunyah.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Gunyah QMSGQ Transport Configuration
+
+maintainers:
+  - Chris Lew <quic_clew@quicinc.com>
+
+description: |
+  Configuration properties for the QMSGQ Gunyah Transport. This configuration
+  is to instantiate a transport for communication over vsock between primary
+  and secondary virtual machines on top of the Gunyah hypervisor.
+
+properties:
+  compatible:
+    const: qcom,qmsgq-gh
+
+  qcom,master:
+    type: boolean
+    description: Specify if this device is on the primary virtual machine.
+
+  msgq-label:
+    $ref: '/schemas/types.yaml#/definitions/uint32'
+    description: The label gunyah qmsgq transport should request msgq with
+                 from the gunyah message queue driver.
+
+required:
+  - compatible
+  - msgq-label
+
+additionalProperties: false
+
+examples:
+  - |
+    qmsgq-gunyah {
+        compatible = "qcom,qmsgq-gh";
+        qcom,master;
+        msgq-label = <3>;
+    };