linux-kernel - [PATCH 8/9] dt-bindings: reserved-memory: MediaTek: Add reserved memory for SVP

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Message-ID: <20230911023038.30649-9-yong.wu@mediatek.com>
Date:   Mon, 11 Sep 2023 10:30:37 +0800
From:   Yong Wu <yong.wu@...iatek.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        <christian.koenig@....com>,
        Matthias Brugger <matthias.bgg@...il.com>
CC:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Brian Starkey <Brian.Starkey@....com>,
        John Stultz <jstultz@...gle.com>, <tjmercier@...gle.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Yong Wu <yong.wu@...iatek.com>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-media@...r.kernel.org>,
        <dri-devel@...ts.freedesktop.org>,
        <linaro-mm-sig@...ts.linaro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <jianjiao.zeng@...iatek.com>,
        <kuohong.wang@...iatek.com>
Subject: [PATCH 8/9] dt-bindings: reserved-memory: MediaTek: Add reserved memory for SVP

This adds the binding for describing a CMA memory for MediaTek SVP(Secure
Video Path).

Signed-off-by: Yong Wu <yong.wu@...iatek.com>
---
 .../mediatek,secure_cma_chunkmem.yaml         | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reserved-memory/mediatek,secure_cma_chunkmem.yaml

diff --git a/Documentation/devicetree/bindings/reserved-memory/mediatek,secure_cma_chunkmem.yaml b/Documentation/devicetree/bindings/reserved-memory/mediatek,secure_cma_chunkmem.yaml
new file mode 100644
index 000000000000..cc10e00d35c4
--- /dev/null
+++ b/Documentation/devicetree/bindings/reserved-memory/mediatek,secure_cma_chunkmem.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reserved-memory/mediatek,secure_cma_chunkmem.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Secure Video Path Reserved Memory
+
+description:
+  This binding describes the reserved memory for secure video path.
+
+maintainers:
+  - Yong Wu <yong.wu@...iatek.com>
+
+allOf:
+  - $ref: reserved-memory.yaml
+
+properties:
+  compatible:
+    const: mediatek,secure_cma_chunkmem
+
+required:
+  - compatible
+  - reg
+  - reusable
+
+unevaluatedProperties: false
+
+examples:
+  - |
+
+    reserved-memory {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        ranges;
+
+        reserved-memory@...00000 {
+            compatible = "mediatek,secure_cma_chunkmem";
+            reusable;
+            reg = <0x80000000 0x18000000>;
+        };
+    };
-- 
2.25.1