Thread (11 messages) 11 messages, 3 authors, 2021-05-17
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Revisions (5)
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[PATCH 1/5] dt-bindings: media: mtk-vcodec: Add dma-ranges property

From: Irui Wang <hidden>
Date: 2021-02-03 08:39:14
Also in: linux-arm-kernel, linux-devicetree, linux-media, lkml
Subsystem: media input infrastructure (v4l/dvb), open firmware and flattened device tree bindings, the rest · Maintainers: Mauro Carvalho Chehab, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

Adds dma-ranges property for DMA addresses translation.

Signed-off-by: Irui Wang <redacted>
---
 Documentation/devicetree/bindings/media/mediatek-vcodec.txt | 2 ++
 1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt b/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
index f85276e629bf..e4644f8caee9 100644
--- a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
+++ b/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
@@ -23,6 +23,8 @@ Required properties:
 - iommus : should point to the respective IOMMU block with master port as
   argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
   for details.
+- dma-ranges : describes how the physical address space of the IOMMU maps
+  to memory.
 One of the two following nodes:
 - mediatek,vpu : the node of the video processor unit, if using VPU.
 - mediatek,scp : the node of the SCP unit, if using SCP.
-- 
2.25.1
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