From: "Rob Herring (Arm)" <robh@kernel.org>
To: Yong Wu <yong.wu@mediatek.com>,
"Joerg Roedel (AMD)" <joro@8bytes.org>,
Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>
Cc: iommu@lists.linux.dev, linux-mediatek@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] dt-bindings: iommu: Describe MT8195 infra IRQs
Date: Wed, 23 Sep 2026 14:15:45 -0500 [thread overview]
Message-ID: <20260923191546.2209201-1-robh@kernel.org> (raw)
The MT8195 infra IOMMU has one fault interrupt per IOMMU bank with 5 banks.
Keep other MediaTek IOMMUs limited to one unnamed interrupt.
Assisted-by: LLM
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
v2:
- Drop unnecessary 'interrupt-names' addition
---
.../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 79c573c47b08..cbda221a4fc5 100644
--- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
@@ -100,7 +100,10 @@ properties:
maxItems: 1
interrupts:
- maxItems: 1
+ minItems: 1
+ maxItems: 5
+ description:
+ A single interrupt or one interrupt per bank.
clocks:
items:
@@ -155,6 +158,19 @@ required:
- '#iommu-cells'
allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt8195-iommu-infra
+ then:
+ properties:
+ interrupts:
+ minItems: 5
+ else:
+ properties:
+ interrupts:
+ maxItems: 1
- if:
properties:
compatible:
--
2.53.0
reply other threads:[~2026-09-23 19:15 UTC|newest]
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