On Fri, Feb 24, 2023 at 04:28:55PM +0530, Manivannan Sadhasivam wrote: > Most of the PCIe controllers require iommu support to function properly. > So let's add them to the binding. > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> > --- > Documentation/devicetree/bindings/pci/qcom,pcie.yaml | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml > index a3639920fcbb..f48d0792aa57 100644 > --- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml > +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml > @@ -64,6 +64,11 @@ properties: > > dma-coherent: true > > + iommus: > + maxItems: 1 > + > + iommu-map: true > + I think both properties together doesn't make sense unless the PCI host itself does DMA in addition to PCI bus devices doing DMA. Rob
