[PATCH] dt-bindings: virtio: pci-iommu: Add ref to pci-device.yaml

Rob Herring (Arm)
2025-04-07T16:53:50Z

The virtio pci-iommu is a PCI device, so it should have a reference to
the pci-device.yaml schema. The pci-device.yaml schema defines the 'reg'
format as a schema, so the text description for 'reg' can be dropped.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
.../devicetree/bindings/virtio/pci-iommu.yaml | 10 ++++------
1 file 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
--
2.47.2