On 09/06/2022 12:08, AngeloGioacchino Del Regno wrote:
Add property "mediatek,pericfg" to let the mtk_iommu driver retrieve
a phandle to the infracfg syscon instead of performing a per-soc
compatible lookup in the entire devicetree and set it as a required
property for MT8195's infra IOMMU.

Signed-off-by: AngeloGioacchino Del Regno 
<angelogioacchino.delre...@collabora.com>

Reviewd-by: Matthias Brugger <matthias....@gmail.com>

---
  .../devicetree/bindings/iommu/mediatek,iommu.yaml  | 14 ++++++++++++++
  1 file changed, 14 insertions(+)

diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml 
b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
index 4142a568b293..d5e3272a54e8 100644
--- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
@@ -116,6 +116,10 @@ properties:
        Refer to bindings/memory-controllers/mediatek,smi-larb.yaml. It must 
sort
        according to the local arbiter index, like larb0, larb1, larb2...
+ mediatek,pericfg:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: The phandle to the mediatek pericfg syscon
+
    '#iommu-cells':
      const: 1
      description: |
@@ -183,6 +187,16 @@ allOf:
        required:
          - mediatek,infracfg
+ - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt8195-iommu-infra
+
+    then:
+      required:
+        - mediatek,pericfg
+
    - if: # The IOMMUs don't have larbs.
        not:
          properties:
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

Reply via email to