diff mbox series

[07/11] dt-bindings: iommu: qcom_iommu: Allow 'tbu' clock

Message ID 20230627-topic-more_bindings-v1-7-6b4b6cd081e5@linaro.org
State New
Headers show
Series Even more msm bindings fixes | expand

Commit Message

Konrad Dybcio June 27, 2023, 4:24 p.m. UTC 
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@linaro.org>
---
 Documentation/devicetree/bindings/iommu/qcom,iommu.yaml | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Rob Herring (Arm) June 29, 2023, 3:19 p.m. UTC | #1 
On Tue, 27 Jun 2023 18:24:23 +0200, Konrad Dybcio wrote:
> 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@linaro.org>
> ---
>  Documentation/devicetree/bindings/iommu/qcom,iommu.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

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