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@xxxxxxxxxxxx> > --- > 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 >
