[PATCH v3 1/3] dt-bindings: dma: arm-dma350: document generic and combined IRQ topologies

[Krzysztof Kozlowski]

On Thu, Mar 19, 2026 at 06:17:21PM +0800, Jun Guo wrote:
> Update the DMA-350 DT binding to match the current driver behavior.
> 
> Allow both:
> - "arm,dma-350" as the generic compatible, and
> - "cix,sky1-dma-350", "arm,dma-350" for SoC-specific fallback usage.
> 
> Also document interrupt topology variants supported by hardware
> integration:
> - one combined interrupt for all channels, or
> - one interrupt per channel (up to 8 channels).
> 
> This patch is Assisted-by: Cursor: GPT-5.3 Codex.

Wrong tag, please read carefully the guideline before using LLM tools.

> 
> Signed-off-by: Jun Guo <jun.guo at cixtech.com>
> Link: https://lore.kernel.org/r/20251216123026.3519923-2-jun.guo@cixtech.com

What does this express? Changelog link? Then keep it in the changelog
--- part.


> ---
>  .../devicetree/bindings/dma/arm,dma-350.yaml  | 31 +++++++++++++------
>  1 file changed, 21 insertions(+), 10 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/dma/arm,dma-350.yaml b/Documentation/devicetree/bindings/dma/arm,dma-350.yaml
> index 429f682f15d8..3639ce0d5054 100644
> --- a/Documentation/devicetree/bindings/dma/arm,dma-350.yaml
> +++ b/Documentation/devicetree/bindings/dma/arm,dma-350.yaml
> @@ -14,7 +14,11 @@ allOf:
>  
>  properties:
>    compatible:
> -    const: arm,dma-350
> +    oneOf:
> +      - const: arm,dma-350
> +      - items:
> +          - const: cix,sky1-dma-350
> +          - const: arm,dma-350
>  
>    reg:
>      items:
> @@ -22,15 +26,22 @@ 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: |
> +      The DMA controller may be configured with separate interrupts for each channel,
> +      or with a single combined interrupt for all channels, depending on the SoC integration.

And more important - you must review the LLM microslop output before
posting and adjust it to Linux kernel coding style. Don't send
unredacted tool output.

Best regards,
Krzysztof