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Commit 6e10d19b authored by Pierre-Yves MORDRET's avatar Pierre-Yves MORDRET Committed by Vinod Koul
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dt-bindings: stm32-dma: add a property to handle STM32 DMAMUX 



STM32 DMA controller has to exposed its number of request line to be
addressed via STM32 DMAMUX.

Signed-off-by: default avatarM'boumba Cedric Madianga <cedric.madianga@gmail.com>
Signed-off-by: default avatarPierre-Yves MORDRET <pierre-yves.mordret@st.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent df7e762d

Documentation/devicetree/bindings/dma/stm32-dma.txt

+3 −1
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ Required properties: 
- #dma-cells : Must be <4>. See DMA client paragraph for more details.



Optional properties:

- dma-requests : Number of DMA requests supported.

- 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
@@ -34,12 +35,13 @@ Example: 
		#dma-cells = <4>;

		st,mem2mem;

		resets = <&rcc 150>;

		dma-requests = <8>;

	};



* DMA client



DMA clients connected to the STM32 DMA controller must use the format

described in the dma.txt file, using a five-cell specifier for each

described in the dma.txt file, using a four-cell specifier for each

channel: a phandle to the DMA controller plus the following four integer cells:



1. The channel id