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* [PATCH v2] dt-bindings: dma: arm,pl330: Add missing 'iommus' property
@ 2022-08-01 21:02 Rob Herring
  2022-09-02 16:06 ` Rob Herring
  2022-09-04 16:11 ` Vinod Koul
  0 siblings, 2 replies; 3+ messages in thread
From: Rob Herring @ 2022-08-01 21:02 UTC (permalink / raw)
  To: Vinod Koul, Krzysztof Kozlowski; +Cc: dmaengine, devicetree, linux-kernel

The pl330 can be behind an IOMMU which is the case for Arm Juno board.
Add the 'iommus' property allowing for 1 IOMMU entry per channel for
writes and 1 IOMMU entry for reads.

Signed-off-by: Rob Herring <robh@kernel.org>
---
v2:
 - Include IOMMU entry for read channel
---
 Documentation/devicetree/bindings/dma/arm,pl330.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/dma/arm,pl330.yaml b/Documentation/devicetree/bindings/dma/arm,pl330.yaml
index 2bec69b308f8..4a3dd6f5309b 100644
--- a/Documentation/devicetree/bindings/dma/arm,pl330.yaml
+++ b/Documentation/devicetree/bindings/dma/arm,pl330.yaml
@@ -55,6 +55,12 @@ properties:
 
   dma-coherent: true
 
+  iommus:
+    minItems: 1
+    maxItems: 9
+    description: Up to 1 IOMMU entry per DMA channel for writes and 1
+      IOMMU entry for reads.
+
   power-domains:
     maxItems: 1
 
-- 
2.34.1


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2022-08-01 21:02 [PATCH v2] dt-bindings: dma: arm,pl330: Add missing 'iommus' property Rob Herring
2022-09-02 16:06 ` Rob Herring
2022-09-04 16:11 ` Vinod Koul

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