dt-bindings: qcom: Add gh-large-dmabuf-test binding

Add gh-large-dmabuf-test binding description and requirements
which include compatible, label and optional properties.

Change-Id: Ief22a3b609539ea307f289fb62e7c90b3a1284f6
Signed-off-by: Georgi Djakov <quic_c_gdjako@quicinc.com>

bindings/soc/qcom/qcom,gh-large-dmabuf-test.yaml

@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/qcom/qcom,gh-large-dmabuf-test.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: QTI Gunyah Hypervisor Large DMA-BUF Test Driver
+
+maintainers:
+  - Georgi Djakov <quic_c_gdjako@quicinc.com>
+
+description: |
+  The Gunyah Hypervisor Test Driver is used to validate gunyah hypervisor
+  functionality. It includes test nodes for transferring large dma-bufs
+  between VMs.
+
+properties:
+  compatible:
+    const: qcom,gh-large-dmabuf-test
+
+  gunyah-label:
+    $ref: '/schemas/types.yaml#/definitions/uint32'
+    description: The test driver will request interrupts with this label
+                 from the gunyah doorbell driver.
+
+  qcom,primary:
+    type: boolean
+    description: Specify if this device is on the primary virtual machine.
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    Master: qcom,test-large-dmabuf {
+      compatible = "qcom,gh-large-dmabuf-test";
+      gunyah-label = <4>;
+      qcom,primary;
+    };
+    Client: qcom,test-large-dmabuf {
+      compatible = "qcom,gh-large-dmabuf-test";
+      gunyah-label = <4>;
+    };