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From:   mgross@linux.intel.com
To:     markgross@kernel.org, mgross@linux.intel.com, arnd@arndb.de,
        bp@suse.de, damien.lemoal@wdc.com, dragan.cvetic@xilinx.com,
        gregkh@linuxfoundation.org, corbet@lwn.net,
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        peng.fan@nxp.com, robh+dt@kernel.org, shawnguo@kernel.org,
        jassisinghbrar@gmail.com
Cc:     linux-kernel@vger.kernel.org,
        Daniele Alessandrelli <daniele.alessandrelli@intel.com>,
        devicetree@vger.kernel.org
Subject: [PATCH v4 04/34] dt-bindings: Add bindings for Keem Bay IPC driver
Date:   Fri, 29 Jan 2021 18:20:54 -0800
Message-Id: <20210130022124.65083-40-mgross@linux.intel.com>
In-Reply-To: <20210130022124.65083-1-mgross@linux.intel.com>
References: <20210130022124.65083-1-mgross@linux.intel.com>
Precedence: bulk

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