linux-kernel - [PATCH 1/4] dt-bindings: dma: Update ADMA bindings for tegra264

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Message-ID: <20250918102009.1519588-2-sheetal@nvidia.com>
Date: Thu, 18 Sep 2025 15:50:06 +0530
From: "Sheetal ." <sheetal@...dia.com>
To: Vinod Koul <vkoul@...nel.org>, Rob Herring <robh@...nel.org>, "Krzysztof
 Kozlowski" <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, "Thierry
 Reding" <thierry.reding@...il.com>, Marc Zyngier <maz@...nel.org>, "Thomas
 Gleixner" <tglx@...utronix.de>, Liam Girdwood <lgirdwood@...il.com>, "Mark
 Brown" <broonie@...nel.org>
CC: Jonathan Hunter <jonathanh@...dia.com>, Sameer Pujar <spujar@...dia.com>,
	<dmaengine@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-sound@...r.kernel.org>,
	sheetal <sheetal@...dia.com>
Subject: [PATCH 1/4] dt-bindings: dma: Update ADMA bindings for tegra264

From: sheetal <sheetal@...dia.com>

- Update ADMA device tree bindings for tegra264 to support up to 64
  interrupt channels by setting 'interrupts' property maxItems to 64.
- Also, update the 'allOf' conditional schema to ensure correct maxItems
  for 'interrupts' based on compatible string, including tegra210 (22)
  and tegra186 (32) ADMA controllers.

Signed-off-by: sheetal <sheetal@...dia.com>
---
 .../bindings/dma/nvidia,tegra210-adma.yaml        | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml b/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml
index da0235e451d6..269a1f7ebdbb 100644
--- a/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml
+++ b/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml
@@ -46,7 +46,7 @@ properties:
       Should contain all of the per-channel DMA interrupts in
       ascending order with respect to the DMA channel index.
     minItems: 1
-    maxItems: 32
+    maxItems: 64
 
   clocks:
     description: Must contain one entry for the ADMA module clock
@@ -86,6 +86,19 @@ allOf:
         reg:
           items:
             - description: Full address space range of DMA registers.
+        interrupts:
+          maxItems: 22
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - nvidia,tegra186-adma
+    then:
+      properties:
+        interrupts:
+          maxItems: 32
 
   - if:
       properties:
-- 
2.34.1