From: Rob Herring <[email protected]> For controllers with no requests/clients (memory to memory only), the
Signed-off-by: Rob Herring <[email protected]> Cc: Vinod Koul <[email protected]> Cc: Dan Williams <[email protected]> Cc: Grant Likely <[email protected]> --- Documentation/devicetree/bindings/dma/dma.txt | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/dma/dma.txt b/Documentation/devicetree/bindings/dma/dma.txt index 8f504e6..d388f06 100644 --- a/Documentation/devicetree/bindings/dma/dma.txt +++ b/Documentation/devicetree/bindings/dma/dma.txt @@ -8,9 +8,10 @@ controller. * DMA controller Required property: -- #dma-cells: Must be at least 1. Used to provide DMA controller - specific information. See DMA client binding below for - more details. +- #dma-cells: Required for controllers with requests. Optional for + memory to memory only DMA controllers. Must be at least + 1. Used to provide DMA controller specific information. + See DMA client binding below for more details. Optional properties: - dma-channels: Number of DMA channels supported by the controller. -- 1.7.10.4 _______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
