[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
More information about the linux-arm-kernel
mailing list