[PATCH v3 17/34] xlink-ipc: Add xlink ipc device tree bindings

[mgross]

From: Seamus Kelly <seamus.kelly@xxxxxxxxx>

Add device tree bindings for the xLink IPC driver which enables xLink to
control and communicate with the VPU IP present on the Intel Keem Bay
SoC.

Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Reviewed-by: Mark Gross <mgross@xxxxxxxxxxxxxxx>
Signed-off-by: Seamus Kelly <seamus.kelly@xxxxxxxxx>
Signed-off-by: Ryan Carnaghi <ryan.r.carnaghi@xxxxxxxxx>
---
 .../misc/intel,keembay-xlink-ipc.yaml         | 49 +++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/misc/intel,keembay-xlink-ipc.yaml

diff --git a/Documentation/devicetree/bindings/misc/intel,keembay-xlink-ipc.yaml b/Documentation/devicetree/bindings/misc/intel,keembay-xlink-ipc.yaml
new file mode 100644
index 000000000000..699e43c4cd40
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/intel,keembay-xlink-ipc.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (c) Intel Corporation. All rights reserved.
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/misc/intel,keembay-xlink-ipc.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: Intel Keem Bay xlink IPC
+
+maintainers:
+  - Kelly Seamus <seamus.kelly@xxxxxxxxx>
+
+description: |
+  The Keem Bay xlink IPC driver enables the communication/control sub-system
+  for internal IPC communications within the Intel Keem Bay SoC.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+        - const: intel,keembay-xlink-ipc
+
+  memory-region:
+    items:
+      - description: reference to the CSS xlink IPC reserved memory region.
+      - description: reference to the MSS xlink IPC reserved memory region.
+
+  intel,keembay-vpu-ipc-id:
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    description: The numeric ID identifying the VPU within the xLink stack.
+
+  intel,keembay-vpu-ipc-name:
+    $ref: "/schemas/types.yaml#/definitions/string"
+    description: User-friendly name for the VPU within the xLink stack.
+
+  intel,keembay-vpu-ipc:
+    $ref: "/schemas/types.yaml#/definitions/phandle"
+    description: reference to the corresponding intel,keembay-vpu-ipc node.
+
+examples:
+  - |
+    xlink-ipc {
+        compatible = "intel,keembay-xlink-ipc";
+        memory-region = <&css_xlink_reserved>,
+                        <&mss_xlink_reserved>;
+        intel,keembay-vpu-ipc-id = <0x0>;
+        intel,keembay-vpu-ipc-name = "vpu-slice-0";
+        intel,keembay-vpu-ipc = <&vpuipc>;
+    };
-- 
2.17.1