[PATCH v2 6/7] dt-bindings: iommu: mediatek: Require mediatek, infracfg for mt2712/8173

[AngeloGioacchino Del Regno]

Both MT2712 and MT8173 got a mediatek,infracfg phandle: add that to
the required properties for these SoCs to deprecate the old way of
looking for SoC-specific infracfg compatible in the entire devicetree.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
Acked-by: Rob Herring <robh at kernel.org>
---
 .../devicetree/bindings/iommu/mediatek,iommu.yaml    | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
index c4af41947593..acc2d7e63a9f 100644
--- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
@@ -175,6 +175,18 @@ allOf:
       required:
         - power-domains
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mediatek,mt2712-m4u
+              - mediatek,mt8173-m4u
+
+    then:
+      required:
+        - mediatek,infracfg
+
   - if: # The IOMMUs don't have larbs.
       not:
         properties:
-- 
2.35.1