Re: [PATCH 1/6] dt-bindings: ti,edma: Add 66AK2G specific information

[Rob Herring]

On Tue, Aug 01, 2017 at 10:11:14AM +0530, Lokesh Vutla wrote:
> Update ti,edma binding documentation to reflect 66AK2G specific
> properties.
> 
> Signed-off-by: Lokesh Vutla <lokeshvutla@xxxxxx>
> ---
>  Documentation/devicetree/bindings/dma/ti-edma.txt | 95 +++++++++++++++++++++--
>  1 file changed, 90 insertions(+), 5 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/dma/ti-edma.txt b/Documentation/devicetree/bindings/dma/ti-edma.txt
> index 18090e7226b4..05fe2931d025 100644
> --- a/Documentation/devicetree/bindings/dma/ti-edma.txt
> +++ b/Documentation/devicetree/bindings/dma/ti-edma.txt
> @@ -9,7 +9,12 @@ execute the actual DMA tansfer.
>  eDMA3 Channel Controller
>  
>  Required properties:
> -- compatible:	"ti,edma3-tpcc" for the channel controller(s)
> +--------------------
> +- compatible:	Should be:
> +		- "ti,edma3-tpcc" for the channel controller(s) on OMAP,
> +		  AM33xx and AM43xx SoCs.
> +		- "ti,k2g-edma3-tpcc", "ti,edma3-tpcc" for the

If power-domains is mandatory, I don't think the fallback is 
appropriate. Or do you expect it to work if the driver ignores the power 
domain?