Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753363AbdCMORa (ORCPT ); Mon, 13 Mar 2017 10:17:30 -0400 Received: from mail-wr0-f195.google.com ([209.85.128.195]:36207 "EHLO mail-wr0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752831AbdCMOQX (ORCPT ); Mon, 13 Mar 2017 10:16:23 -0400 From: "M'boumba Cedric Madianga" To: vinod.koul@intel.com, robh+dt@kernel.org, mark.rutland@arm.com, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com, dan.j.williams@intel.com, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: "M'boumba Cedric Madianga" Subject: [PATCH 3/5] dt-bindings: stm32-dma: Add property to handle STM32 DMAMUX Date: Mon, 13 Mar 2017 15:15:59 +0100 Message-Id: <1489414561-28912-4-git-send-email-cedric.madianga@gmail.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1489414561-28912-1-git-send-email-cedric.madianga@gmail.com> References: <1489414561-28912-1-git-send-email-cedric.madianga@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 978 Lines: 24 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