linux-kernel - [PATCH 1/2] dt-bindings: iommu: rockchip: Add support for multiple interface clocks

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Message-Id: <20251126083345.88-2-kernel@airkyi.com>
Date: Wed, 26 Nov 2025 16:33:44 +0800
From: Chaoyi Chen <kernel@...kyi.com>
To: Joerg Roedel <joro@...tes.org>,
	Will Deacon <will@...nel.org>,
	Robin Murphy <robin.murphy@....com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>
Cc: iommu@...ts.linux.dev,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Chaoyi Chen <chaoyi.chen@...k-chips.com>
Subject: [PATCH 1/2] dt-bindings: iommu: rockchip: Add support for multiple interface clocks

From: Chaoyi Chen <chaoyi.chen@...k-chips.com>

The iommu found on RK3576 NPU/RKVDEC may contains more than one
interface clock.

Signed-off-by: Chaoyi Chen <chaoyi.chen@...k-chips.com>
---
 .../devicetree/bindings/iommu/rockchip,iommu.yaml         | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml
index 6ce41d11ff5e..11cc22a0b1d3 100644
--- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml
@@ -42,14 +42,22 @@ properties:
     minItems: 1
 
   clocks:
+    minItems: 2
     items:
       - description: Core clock
       - description: Interface clock
+      - description: Interface clock 1
+      - description: Interface clock 2
+      - description: Interface clock 3
 
   clock-names:
+    minItems: 2
     items:
       - const: aclk
       - const: iface
+      - const: iface_1
+      - const: iface_2
+      - const: iface_3
 
   "#iommu-cells":
     const: 0
-- 
2.51.1