[PATCH v5 1/3] dt-bindings: dma: arm-dma350: document combined and per-channel IRQ topologies
From: Jun Guo <hidden>
Date: 2026-03-24 12:01:22
Also in:
dmaengine, linux-devicetree, lkml
Subsystem:
dma generic offload engine subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Vinod Koul, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Document the interrupt topologies supported by DMA-350 integration: - one combined interrupt for all channels, or - one interrupt per channel (up to 8 channels). Assisted-by: Cursor:GPT-5.3-Codex Signed-off-by: Jun Guo <redacted> --- .../devicetree/bindings/dma/arm,dma-350.yaml | 25 ++++++++++++------- 1 file changed, 16 insertions(+), 9 deletions(-)
diff --git a/Documentation/devicetree/bindings/dma/arm,dma-350.yaml b/Documentation/devicetree/bindings/dma/arm,dma-350.yaml
index 429f682f15d8..bec9dc32541b 100644
--- a/Documentation/devicetree/bindings/dma/arm,dma-350.yaml
+++ b/Documentation/devicetree/bindings/dma/arm,dma-350.yaml@@ -22,15 +22,22 @@ properties: interrupts: minItems: 1 - items: - - description: Channel 0 interrupt - - description: Channel 1 interrupt - - description: Channel 2 interrupt - - description: Channel 3 interrupt - - description: Channel 4 interrupt - - description: Channel 5 interrupt - - description: Channel 6 interrupt - - description: Channel 7 interrupt + maxItems: 8 + description: + Either one interrupt per channel (8 interrupts), or one + combined interrupt for all channels. + oneOf: + - items: + - description: Channel 0 interrupt + - description: Channel 1 interrupt + - description: Channel 2 interrupt + - description: Channel 3 interrupt + - description: Channel 4 interrupt + - description: Channel 5 interrupt + - description: Channel 6 interrupt + - description: Channel 7 interrupt + - items: + - description: Combined interrupt shared by all channels "#dma-cells": const: 1
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2.34.1