Subject: [PATCH v9 5/9] dmaengine: edma: Add TI EDMA device tree binding

From: [email-masked] (Sekhar Nori)
Date: Tue, 12 Mar 2013 12:23:03 +0530

On 3/6/2013 9:45 PM, Matt Porter wrote:
> The binding definition is based on the generic DMA controller
> binding.
> 
> Signed-off-by: Matt Porter <[email-masked]>

Okay the bindings the documented after they are used leading to some
confusion. This patch should be moved up the series. As I noted in my
other e-mail, some of these bindings are not really hardware description
and need to be re-looked.

Thanks,
Sekhar

> ---
>  Documentation/devicetree/bindings/dma/ti-edma.txt |   49 +++++++++++++++++++++
>  1 file changed, 49 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/dma/ti-edma.txt
> 
> diff --git a/Documentation/devicetree/bindings/dma/ti-edma.txt b/Documentation/devicetree/bindings/dma/ti-edma.txt
> new file mode 100644
> index 0000000..075a60e3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/dma/ti-edma.txt
> @@ -0,0 +1,49 @@
> +TI EDMA
> +
> +Required properties:
> +- compatible : "ti,edma3"
> +- ti,hwmods: Name of the hwmods associated to the EDMA
> +- ti,edma-regions: Number of regions
> +- ti,edma-slots: Number of slots
> +- ti,edma-queue-tc-map: List of transfer control to queue mappings
> +- ti,edma-queue-priority-map: List of queue priority mappings
> +- ti,edma-default-queue: Default queue value
> +
> +Optional properties:
> +- ti,edma-reserved-channels: List of reserved channel regions
> +- ti,edma-reserved-slots: List of reserved slot regions
> +- ti,edma-xbar-event-map: Crossbar event to channel map
> +
> +Example:
> +
> +edma: edma at 49000000 {
> +	reg = <0x49000000 0x10000>;
> +	interrupt-parent = <&intc>;
> +	interrupts = <12 13 14>;
> +	compatible = "ti,edma3";
> +	ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
> +	#dma-cells = <1>;
> +	dma-channels = <64>;
> +	ti,edma-regions = <4>;
> +	ti,edma-slots = <256>;
> +	ti,edma-reserved-channels = <0  2
> +				     14 2
> +				     26 6
> +				     48 4
> +				     56 8>;
> +	ti,edma-reserved-slots = <0  2
> +				  14 2
> +				  26 6
> +				  48 4
> +				  56 8
> +				  64 127>;
> +	ti,edma-queue-tc-map = <0 0
> +				1 1
> +				2 2>;
> +	ti,edma-queue-priority-map = <0 0
> +				      1 1
> +				      2 2>;
> +	ti,edma-default-queue = <0>;
> +	ti,edma-xbar-event-map = <1 12
> +				  2 13>;
> +};
>