From b15a5ce863838c876d2b505154112e8822bc447c Mon Sep 17 00:00:00 2001 From: Fei Shao Date: Tue, 1 Oct 2024 19:27:21 +0800 Subject: [PATCH] dt-bindings: media: mediatek,jpeg: Relax IOMMU max item count On MediaTek platforms with Multimedia MMU (M4U), a multimedia hardware can be assigned with a local arbiter (LARB) which has a maximum of 32 ports for MediaTek's IOMMU infrastructure. That means there can be at most 32 items in the iommus property in theory. Instead of relaxing the max item count every time a newly introduced device tree hits the limit, bump the number to 32 as an one-time effort. On the other hand, all existing and foreseeable JPEG decoder nodes at this point have at least 2 IOMMUs, so set minItems to 2 accordingly. Signed-off-by: Fei Shao Acked-by: Krzysztof Kozlowski Signed-off-by: Hans Verkuil --- .../devicetree/bindings/media/mediatek-jpeg-decoder.yaml | 3 ++- .../devicetree/bindings/media/mediatek-jpeg-encoder.yaml | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml index cfabf360f278..a4aacd3eb189 100644 --- a/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml +++ b/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml @@ -44,7 +44,8 @@ properties: maxItems: 1 iommus: - maxItems: 2 + minItems: 2 + maxItems: 32 description: | Points to the respective IOMMU block with master port as argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details. diff --git a/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml b/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml index 83c020a673d6..5b15f8977f67 100644 --- a/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml +++ b/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml @@ -39,7 +39,7 @@ properties: iommus: minItems: 2 - maxItems: 4 + maxItems: 32 description: | Points to the respective IOMMU block with master port as argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details. -- 2.50.1