[PATCH v2 3/5] dt-bindings: iommu: add new compatible strings

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The Allwinner H616 and A523 contain IOMMU IP very similar to the H6, but
use a different reset value for the bypass register, which makes them
strictly speaking incompatible.

Add a new compatible string for the H616, and a version for the A523,
falling back to the H616.

Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
 .../bindings/iommu/allwinner,sun50i-h6-iommu.yaml          | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml b/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml
index e20016f120175..a8409db4a3e3d 100644
--- a/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml
@@ -17,7 +17,12 @@ properties:
       The content of the cell is the master ID.
 
   compatible:
-    const: allwinner,sun50i-h6-iommu
+    oneOf:
+      - const: allwinner,sun50i-h6-iommu
+      - const: allwinner,sun50i-h616-iommu
+      - items:
+          - const: allwinner,sun55i-a523-iommu
+          - const: allwinner,sun50i-h616-iommu
 
   reg:
     maxItems: 1
-- 
2.39.4





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