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Message-ID: <20250407165341.2934499-1-robh@kernel.org>
Date: Mon, 7 Apr 2025 11:53:40 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: "Michael S. Tsirkin" <mst@...hat.com>,
Jason Wang <jasowang@...hat.com>,
Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
Eugenio PĂ©rez <eperezma@...hat.com>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Jean-Philippe Brucker <jean-philippe@...aro.org>
Cc: virtualization@...ts.linux.dev,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: virtio: pci-iommu: Add ref to pci-device.yaml
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@...nel.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
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