linux-kernel - [PATCH v2] dt-bindings: iommu: mediatek: mt8195: Fix max interrupts

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Message-Id: <20220908141529.1478-1-matthias.bgg@kernel.org>
Date:   Thu,  8 Sep 2022 16:15:29 +0200
From:   matthias.bgg@...nel.org
To:     Yong Wu <yong.wu@...iatek.com>, Joerg Roedel <joro@...tes.org>,
        Will Deacon <will@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     devicetree@...r.kernel.org, Robin Murphy <robin.murphy@....com>,
        linux-kernel@...r.kernel.org, iommu@...ts.linux.dev,
        Rob Herring <robh+dt@...nel.org>,
        linux-mediatek@...ts.infradead.org,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-arm-kernel@...ts.infradead.org,
        Matthias Brugger <mbrugger@...e.com>
Subject: [PATCH v2] dt-bindings: iommu: mediatek: mt8195: Fix max interrupts

From: Matthias Brugger <mbrugger@...e.com>

The mt8195-iommu-infra has five banks and one interrupt for each.
Reflect that in the binding.

Signed-off-by: Matthias Brugger <mbrugger@...e.com>

---

Changes in v2:
- keep wide constrains for minItems and maxItems
- delete unrealted required: - interrupts
- use minItems for mediatek,mt8195-iommu-infra case

 .../bindings/iommu/mediatek,iommu.yaml         | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
index fee0241b50988..4461dc027d1c4 100644
--- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
@@ -91,7 +91,9 @@ properties:
     maxItems: 1
 
   interrupts:
-    maxItems: 1
+    minItems: 1
+    maxItems: 5
+    description: each bank has one dedicated interrupt
 
   clocks:
     items:
@@ -183,6 +185,17 @@ allOf:
       required:
         - mediatek,infracfg
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt8195-iommu-infra
+
+    then:
+      properties:
+        interrupts:
+          minItems: 5
+
   - if: # The IOMMUs don't have larbs.
       not:
         properties:
@@ -191,6 +204,9 @@ allOf:
               const: mediatek,mt8195-iommu-infra
 
     then:
+      properties:
+        interrupts:
+          maxItems: 1
       required:
         - mediatek,larbs
 
-- 
2.37.3