Documentation: DT: dma: Correct binding doc for single dma channel

This patch corrects the binding doc dma client section
in case of h/w is configured for 1 channel for AXI VDMA/DMA Controllers.

Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt b/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt
index 29a595cbab83f6b4b2f494320295c7d91ae2f556..ccb246ca3f19cb81cba5935d1dc201d84c5f8074 100644 (file)
--- a/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt
+++ b/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt
@@ -101,7 +101,8 @@ axi_vdma_0: axivdma@40030000 {
 Required properties:
 - dmas: a list of <[Video DMA device phandle] [Channel ID]> pairs,
        where Channel ID is '0' for write/tx and '1' for read/rx
-       channel.
+       channel if both channels are enabled.
+       If only one channel is enabled either tx or rx the Channel ID is '0'.
 - dma-names: a list of DMA channel names, one per "dmas" entry
 
 Example: