Some IOMMUs on some platforms (there doesn't seem to be a good denominator
for this) require the presence of a third clock, specifically for
accessing the IOMMU's Translation Buffer Unit (TBU). Allow it.
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
---
Documentation/devicetree/bindings/iommu/qcom,iommu.yaml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/iommu/qcom,iommu.yaml b/Documentation/devicetree/bindings/iommu/qcom,iommu.yaml
index d9fabdf930d9..3b7acb459f8e 100644
--- a/Documentation/devicetree/bindings/iommu/qcom,iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/qcom,iommu.yaml
@@ -24,14 +24,18 @@ properties:
- const: qcom,msm-iommu-v1
clocks:
+ minItems: 2
items:
- description: Clock required for IOMMU register group access
- description: Clock required for underlying bus access
+ - description: Clock required for Translation Buffer Unit access
clock-names:
+ minItems: 2
items:
- const: iface
- const: bus
+ - const: tbu
power-domains:
maxItems: 1
--
2.41.0
