[PATCH v5 04/34] dt-bindings: Add bindings for Keem Bay IPC driver

mgross
2021-02-06T04:24:11Z

From: Daniele Alessandrelli <daniele.alessandrelli@intel.com>

Add DT binding documentation for the Intel Keem Bay IPC driver, which
enables communication between the Computing Sub-System (CSS) and the
Multimedia Sub-System (MSS) of the Intel Movidius SoC code named Keem
Bay.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Reviewed-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: Mark Gross <mgross@linux.intel.com>
---
.../bindings/soc/intel/intel,keembay-ipc.yaml | 45 +++++++++++++++++++
1 file changed, 45 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/intel/intel,keembay-ipc.yaml

diff --git a/Documentation/devicetree/bindings/soc/intel/intel,keembay-ipc.yaml b/Documentation/devicetree/bindings/soc/intel/intel,keembay-ipc.yaml
new file mode 100644
index 000000000000..586fe73f4cd4
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/intel/intel,keembay-ipc.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2020 Intel Corporation
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/soc/intel/intel,keembay-ipc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Keem Bay IPC
+
+maintainers:
+ - Daniele Alessandrelli <daniele.alessandrelli@intel.com>
+
+description:
+ The Keem Bay IPC driver enables Inter-Processor Communication (IPC) with the
+ Visual Processor Unit (VPU) embedded in the Intel Movidius SoC code named
+ Keem Bay.
+
+properties:
+ compatible:
+ const: intel,keembay-ipc
+
+ memory-region:
+ items:
+ - description:
+ Reserved memory region used by the CPU to allocate IPC packets.
+ - description:
+ Reserved memory region used by the VPU to allocate IPC packets.
+
+ mboxes:
+ description: VPU IPC Mailbox.
+
+required:
+ - compatible
+ - memory-region
+ - mboxes
+
+additionalProperties: false
+
+examples:
+ - |
+ ipc {
+ compatible = "intel,keembay-ipc";
+ memory-region = <&ipc_cpu_reserved>, <&ipc_vpu_reserved>;
+ mboxes = <&vpu_ipc_mbox 0>;
+ };
--
2.17.1