[PATCH v4 1/3] dt-bindings: dma: fsl-edma: add dma-channel-mask property description

[Rob Herring (Arm)]

On Wed, 11 Feb 2026 17:28:24 +0800, Joy Zou wrote:
> Add documentation for the dma-channel-mask property in the fsl-edma
> binding. This property uses an inverted bit definition: bit value 0
> indicates the channel is available, while bit value 1 indicates
> unavailable.
> 
> That was already used widely for i.MX8, i.MX9. Correcting the definition
> will break backward compatibility. This reversal only impacts the eDMA
> dts node and driver, and doesn't impact DMA consumer. Therefore,
> keep the inverted definition.
> 
> Also add a note at the top of the binding to highlight this inverted
> definition to prevent confusion.
> 
> Signed-off-by: Joy Zou <joy.zou at nxp.com>
> ---
>  Documentation/devicetree/bindings/dma/fsl,edma.yaml | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 

Acked-by: Rob Herring (Arm) <robh at kernel.org>