Commit b5a4c373 authored Feb 21, 2019 by Baolin Wang Committed by Vinod Koul Feb 25, 2019

dt-bindings: dmaengine: sprd: Change channel id to slave id for DMA cell specifier



For Spreadtrum DMA engine, all channels are equal, which means slave can
request any channels with setting a unique slave id to trigger this channel.

Thus we can remove the channel id from device tree to assign the channel
dynamically, moreover we should add the slave id in device tree.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>

parent 3e5daee5

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

+1 −1

Original line number	Diff line number	Diff line
		@@ -31,7 +31,7 @@ DMA clients connected to the Spreadtrum DMA controller must use the format
		described in the dma.txt file, using a two-cell specifier for each channel.
		The two cells in order are:
		1. A phandle pointing to the DMA controller.
		2. The channel id.
		2. The slave id.

		spi0: spi@70a00000{
		...