[PATCH v2 3/5] dt-bindings: stm32-dma: Add property to handle STM32 DMAMUX
From: robh@kernel.org (Rob Herring)
Date: 2017-06-26 19:33:47
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linux-devicetree, lkml
On Fri, Jun 23, 2017 at 03:00:51PM +0200, Pierre-Yves MORDRET wrote:
quoted hunk ↗ jump to hunk
This patch adds an optional property needed for STM32 DMA controller addressed via STM32 DMAMUX. Signed-off-by: M'boumba Cedric Madianga <redacted> Signed-off-by: Pierre-Yves MORDRET <redacted> --- Version history: v2: * Typo fix --- --- Documentation/devicetree/bindings/dma/stm32-dma.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)diff --git a/Documentation/devicetree/bindings/dma/stm32-dma.txt b/Documentation/devicetree/bindings/dma/stm32-dma.txt index 4408af6..340c918 100644 --- a/Documentation/devicetree/bindings/dma/stm32-dma.txt +++ b/Documentation/devicetree/bindings/dma/stm32-dma.txt@@ -16,6 +16,9 @@ Optional properties: - resets: Reference to a reset controller asserting the DMA controller - st,mem2mem: boolean; if defined, it indicates that the controller supports memory-to-memory transfer +- st,dmamux: boolean; if defined, it indicates that the controller is behind a + DMA multiplexer. In that case, using dma instances doesn't work for DMA + clients. They have to use dma-router instances.
Won't this be obvious looking at the bindings for clients? In any case, this should be implied by the compatible string. Rob