Messages in this thread | | | Date | Wed, 10 Feb 2021 16:53:23 -0600 | From | Rob Herring <> | Subject | Re: [PATCH 1/5] dt-bindings: media: mtk-vcodec: Add dma-ranges property |
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On Wed, Feb 03, 2021 at 04:37:48PM +0800, Irui Wang wrote: > Adds dma-ranges property for DMA addresses translation. > > Signed-off-by: Irui Wang <irui.wang@mediatek.com> > --- > 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.
dma-ranges is supposed to be in a bus/parent node.
> 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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