linux-kernel - [PATCH 2/6] dt-bindings: iommu: mediatek: Fix interrupt count constraint for new SoCs

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Message-ID: <20240924103156.13119-2-macpaul.lin@mediatek.com>
Date: Tue, 24 Sep 2024 18:31:52 +0800
From: Macpaul Lin <macpaul.lin@...iatek.com>
To: Chun-Kuang Hu <chunkuang.hu@...nel.org>, Philipp Zabel
	<p.zabel@...gutronix.de>, Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>, Rob Herring <robh@...nel.org>, Krzysztof
 Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Yong Wu
	<yong.wu@...iatek.com>, Joerg Roedel <joro@...tes.org>, Will Deacon
	<will@...nel.org>, Robin Murphy <robin.murphy@....com>, Matthias Brugger
	<matthias.bgg@...il.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>, <dri-devel@...ts.freedesktop.org>,
	<linux-mediatek@...ts.infradead.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <iommu@...ts.linux.dev>,
	<linux-arm-kernel@...ts.infradead.org>, Alexandre Mergnat
	<amergnat@...libre.com>
CC: Bear Wang <bear.wang@...iatek.com>, Pablo Sun <pablo.sun@...iatek.com>,
	Macpaul Lin <macpaul.lin@...iatek.com>, Macpaul Lin <macpaul@...il.com>, Sen
 Chu <sen.chu@...iatek.com>, Chris-qj chen <chris-qj.chen@...iatek.com>,
	MediaTek Chromebook Upstream
	<Project_Global_Chrome_Upstream_Group@...iatek.com>, Chen-Yu Tsai
	<wenst@...omium.org>
Subject: [PATCH 2/6] dt-bindings: iommu: mediatek: Fix interrupt count constraint for new SoCs

The infra-iommu node in mt8195.dtsi was triggering a CHECK_DTBS error due
to an excessively long 'interrupts' property. The error message was:

  infra-iommu@...15000: interrupts: [[0, 795, 4, 0], [0, 796, 4, 0],
                     [0, 797, 4, 0], [0, 798, 4, 0], [0, 799, 4, 0]]
                     is too long

To address this issue, add "minItems: 1" and "maxItems: 5" constraints to
the 'interrupts' property in the DT binding schema. This change allows for
flexibility in the number of interrupts for new SoCs

Fixes: bca28426805d ("dt-bindings: iommu: mediatek: Convert IOMMU to DT schema")

Signed-off-by: Macpaul Lin <macpaul.lin@...iatek.com>
---
 Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
index ea6b0f5f24de..a00f1f0045b1 100644
--- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
@@ -96,7 +96,8 @@ properties:
     maxItems: 1
 
   interrupts:
-    maxItems: 1
+    minItems: 1
+    maxItems: 5
 
   clocks:
     items:
-- 
2.45.2