[PATCH V2 3/3] ARM: tegra: document use of standard DMA DT bindings

Arnd Bergmann arnd at arndb.de
Mon Nov 25 17:07:55 EST 2013


On Monday 25 November 2013 15:06:01 Stephen Warren wrote:
>    See ../reset/reset.txt for details.
>  - reset-names : Must include the following entries:
>    - dma
> +- #iommu-cells : Must be <1>. This dictates the length of DMA specifiers in
> +  client nodes' dmas properties. The specifier represents the DMA request
> +  select value for the peripheral. For more details, consult the Tegra TRM's
> +  documentation of the APB DMA channel control register REQ_SEL field.
>  
>  Examples:
>  
> @@ -36,4 +40,5 @@ apbdma: dma at 6000a000 {
>         clocks = <&tegra_car 34>;
>         resets = <&tegra_car 34>;
>         reset-names = "dma";
> +       #iommu-cells = <1>;

s/iommu-cells/dma-cells/

	Arnd



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