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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>
This commit is contained in:
Robert Jarzmik 2016-02-15 21:27:44 +01:00
parent 6b9d526b77
commit 9ab9ae55fd
1 changed files with 2 additions and 0 deletions
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2
Documentation/devicetree/bindings/dma/mmp-dma.txt
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@ -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.