From mboxrd@z Thu Jan 1 00:00:00 1970 From: cedric.madianga@gmail.com (M'boumba Cedric Madianga) Date: Mon, 13 Mar 2017 15:15:59 +0100 Subject: [PATCH 3/5] dt-bindings: stm32-dma: Add property to handle STM32 DMAMUX In-Reply-To: <1489414561-28912-1-git-send-email-cedric.madianga@gmail.com> References: <1489414561-28912-1-git-send-email-cedric.madianga@gmail.com> Message-ID: <1489414561-28912-4-git-send-email-cedric.madianga@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This patch adds an optional property needed for STM32 DMA controller addressed via STM32 DMAMUX. Signed-off-by: M'boumba Cedric Madianga --- Documentation/devicetree/bindings/dma/stm32-dma.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/dma/stm32-dma.txt b/Documentation/devicetree/bindings/dma/stm32-dma.txt index 4408af6..7b5e91a 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. Example: -- 1.9.1