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-rw-r--r--Documentation/devicetree/bindings/pci/pci-ep.yaml11
-rw-r--r--Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml1
2 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/pci-ep.yaml b/Documentation/devicetree/bindings/pci/pci-ep.yaml
index 0b5456ee21eb..f75000e3093d 100644
--- a/Documentation/devicetree/bindings/pci/pci-ep.yaml
+++ b/Documentation/devicetree/bindings/pci/pci-ep.yaml
@@ -42,6 +42,17 @@ properties:
default: 1
maximum: 16
+ linux,pci-domain:
+ description:
+ If present this property assigns a fixed PCI domain number to a PCI
+ Endpoint Controller, otherwise an unstable (across boots) unique number
+ will be assigned. It is required to either not set this property at all
+ or set it for all PCI endpoint controllers in the system, otherwise
+ potentially conflicting domain numbers may be assigned to endpoint
+ controllers. The domain number for each endpoint controller in the system
+ must be unique.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
required:
- compatible
diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
index 46802f7d9482..1226ee5d08d1 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
@@ -280,4 +280,5 @@ examples:
phy-names = "pciephy";
max-link-speed = <3>;
num-lanes = <2>;
+ linux,pci-domain = <0>;
};