Re: [PATCH v7 1/3] DMA: Freescale: revise device tree binding document

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On 07/29/2013 04:49 AM, hongbo.zhang@xxxxxxxxxxxxx wrote:
> From: Hongbo Zhang <hongbo.zhang@xxxxxxxxxxxxx>
> 
> This patch updates the discription of each type of DMA controller and its
> channels, it is preparation for adding another new DMA controller binding, it
> also fixes some defects of indent for text alignment at the same time.

> diff --git a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt

> -- compatible        : compatible list, contains 2 entries, first is
> -		 "fsl,CHIP-dma", where CHIP is the processor
> -		 (mpc8349, mpc8360, etc.) and the second is
> -		 "fsl,elo-dma"
> +- compatible        : must include "fsl,elo-dma"

Why remove the list of supported compatible values. Lately it seems that
we're moving towards listing more/all the values rather than removing
their documentation...

> -- ranges		: Should be defined as specified in 1) to describe the
> -		  DMA controller channels.
> +- ranges            : describes the mapping between the address space of the
> +                      DMA channels and the address space of the DMA controller

What is "the address space of the DMA controller". Perhaps this should
say "the CPU-visible address space" instead?
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