Re: [PATCH v1 3/5] dt-bindings: Add DT bindings for NVIDIA Tegra AHB DMA controller

From: Jon Hunter
Date: Tue Sep 26 2017 - 10:52:15 EST



On 26/09/17 00:22, Dmitry Osipenko wrote:
> Document DT bindings for NVIDIA Tegra AHB DMA controller that presents
> on Tegra20/30 SoC's.
>
> Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
> ---
> .../bindings/dma/nvidia,tegra20-ahbdma.txt | 23 ++++++++++++++++++++++
> 1 file changed, 23 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/dma/nvidia,tegra20-ahbdma.txt
>
> diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra20-ahbdma.txt b/Documentation/devicetree/bindings/dma/nvidia,tegra20-ahbdma.txt
> new file mode 100644
> index 000000000000..2af9aa76ae11
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/dma/nvidia,tegra20-ahbdma.txt
> @@ -0,0 +1,23 @@
> +* NVIDIA Tegra AHB DMA controller
> +
> +Required properties:
> +- compatible: Must be "nvidia,tegra20-ahbdma"
> +- reg: Should contain registers base address and length.
> +- interrupts: Should contain one entry, DMA controller interrupt.
> +- clocks: Should contain one entry, DMA controller clock.
> +- resets : Should contain one entry, DMA controller reset.
> +- #dma-cells: Should be <1>. The cell represents DMA request select value
> + for the peripheral. For more details consult the Tegra TRM's
> + documentation, in particular AHB DMA channel control register
> + REQ_SEL field.

What about the TRIG_SEL field? Do we need to handle this here as well?

Cheers
Jon

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nvpublic