dma: mmp_pdma: Add the #dma-requests DT property documentation



For pxa based platforms, the number of requestor lines should be
specified, so that the driver can check if the flow control should be
activated (when a requestor line is asked for) or not.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Rob Herring <robh@kernel.org>

parent 6b9d526b

Documentation/devicetree/bindings/dma/mmp-dma.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -12,6 +12,8 @@ Required properties:
		Optional properties:
		- #dma-channels: Number of DMA channels supported by the controller (defaults
		to 32 when not specified)
		- #dma-requests: Number of DMA requestor lines supported by the controller
		(defaults to 32 when not specified)

		"marvell,pdma-1.0"
		Used platforms: pxa25x, pxa27x, pxa3xx, pxa93x, pxa168, pxa910, pxa688.