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-rw-r--r--Documentation/devicetree/bindings/virtio/pci-iommu.yaml10
1 files changed, 4 insertions, 6 deletions
diff --git a/Documentation/devicetree/bindings/virtio/pci-iommu.yaml b/Documentation/devicetree/bindings/virtio/pci-iommu.yaml
index 972a785a42de..8bd6ad72ac7a 100644
--- a/Documentation/devicetree/bindings/virtio/pci-iommu.yaml
+++ b/Documentation/devicetree/bindings/virtio/pci-iommu.yaml
@@ -20,6 +20,9 @@ description: |
virtio-iommu node doesn't have an "iommus" property, and is omitted from
the iommu-map property of the root complex.
+allOf:
+ - $ref: /schemas/pci/pci-device.yaml#
+
properties:
# If compatible is present, it should contain the vendor and device ID
# according to the PCI Bus Binding specification. Since PCI provides
@@ -33,12 +36,7 @@ properties:
- const: pci1af4,1057
reg:
- description: |
- PCI address of the IOMMU. As defined in the PCI Bus Binding
- reference, the reg property is a five-cell address encoded as (phys.hi
- phys.mid phys.lo size.hi size.lo). phys.hi should contain the device's
- BDF as 0b00000000 bbbbbbbb dddddfff 00000000. The other cells should be
- zero. See Documentation/devicetree/bindings/pci/pci.txt
+ maxItems: 1
'#iommu-cells':
const: 1