Some of Qualcomm platforms have an IOMMU unit between the PCIe IP and
DDR. For example, SA8775P specifies the iommu alththough it is not a
part of bindings. Change the schema in order to require the IOMMU for
SA8775P and forbid it from being used on SDX55 (SM8450 will be handled
in a later patch).
This fixes the following warning:
pcie-ep@1c10000: Unevaluated properties are not allowed ('iommus' was unexpected)
Fixes: 9d3d5e75f31c ("dt-bindings: PCI: qcom-ep: Add support for SA8775P SoC")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
index 0c2ca4cfa3b190b3fb204f0d7142370734fb3534..6075361348352bb8d607acecc76189e28b03dc5b 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
@@ -75,6 +75,9 @@ properties:
- const: doorbell
- const: dma
+ iommus:
+ maxItems: 1
+
reset-gpios:
description: GPIO used as PERST# input signal
maxItems: 1
@@ -162,6 +165,7 @@ allOf:
maxItems: 2
interrupt-names:
maxItems: 2
+ iommus: false
- if:
properties:
@@ -234,6 +238,8 @@ allOf:
interrupt-names:
minItems: 3
maxItems: 3
+ required:
+ - iommus
unevaluatedProperties: false
--
2.39.5
