On 09/18/2013 04:15 AM, hongbo.zh...@freescale.com wrote:
> From: Hongbo Zhang <hongbo.zh...@freescale.com>
>
> Freescale QorIQ T4 and B4 introduce new 8-channel DMA engines, this patch adds
> the device tree nodes for them.
> diff --git a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
> b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
> +Required properties:
> +
> +- compatible : must include "fsl,elo3-dma"
> +- reg : DMA General Status Registers, i.e. DGSR0 which contains
> + status for channel 1~4, and DGSR1 for channel 5~8
Is that a single entry, which is large enough to cover both registers,
or a pair of entries, one per register? Reading the text, I might assume
the former, but looking at the examples, it's the latter.
...
+Example:
> +dma@100300 {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "fsl,elo3-dma";
> + reg = <0x100300 0x4>,
> + <0x100600 0x4>;
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