[PATCH v4 03/10] dt-bindings: gpu: host1x: Document memory-regions for NVDEC

Thierry Reding <[email protected]>
Newsgroups org.freedesktop.lists.dri-devel,dev.linux.lists.iommu,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.linux-media,org.kernel.vger.linux-s390,org.kernel.vger.linux-tegra,org.kernel.vger.linux-trace-kernel,org.kvack.linux-mm
Message-ID <[email protected]>
From: Thierry Reding <[email protected]>

The video protection region is a reserved memory region that can be used
for secure video playback. NVDEC can access this region to decode images
into securely.

Signed-off-by: Thierry Reding <[email protected]>
---
 .../devicetree/bindings/gpu/host1x/nvidia,tegra234-nvdec.yaml     | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra234-nvdec.yaml b/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra234-nvdec.yaml
index 4eb325cfd296..bcaaabca945d 100644
--- a/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra234-nvdec.yaml
+++ b/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra234-nvdec.yaml
@@ -60,6 +60,14 @@ properties:
       - const: dma-mem
       - const: write
 
+  memory-region:
+    items:
+      - description: reference to the video protection memory region
+
+  memory-region-names:
+    items:
+      - const: protected
+
   nvidia,memory-controller:
     $ref: /schemas/types.yaml#/definitions/phandle
     description:

-- 
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