From patchwork Thu Sep 28 15:36:39 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre Yves MORDRET X-Patchwork-Id: 819655 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3y2zNM0GwXz9t5Y for ; Fri, 29 Sep 2017 01:37:55 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932082AbdI1Phw (ORCPT ); Thu, 28 Sep 2017 11:37:52 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:53427 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753272AbdI1Phw (ORCPT ); Thu, 28 Sep 2017 11:37:52 -0400 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v8SFXb6R010558; Thu, 28 Sep 2017 17:36:55 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2d8h3qpmg1-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 28 Sep 2017 17:36:55 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 3192B4A; Thu, 28 Sep 2017 15:36:54 +0000 (GMT) Received: from Webmail-eu.st.com (sfhdag5node2.st.com [10.75.127.14]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id C213D289E; Thu, 28 Sep 2017 15:36:53 +0000 (GMT) Received: from localhost (10.75.127.46) by SFHDAG5NODE2.st.com (10.75.127.14) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Thu, 28 Sep 2017 17:36:53 +0200 From: Pierre-Yves MORDRET To: Vinod Koul , Rob Herring , Mark Rutland , Maxime Coquelin , Alexandre Torgue , Russell King , Dan Williams , "M'boumba Cedric Madianga" , Fabrice GASNIER , Herbert Xu , Fabien DESSENNE , Amelie Delaunay , Pierre-Yves MORDRET , , , , Subject: [PATCH v5 0/4] Add STM32 MDMA driver Date: Thu, 28 Sep 2017 17:36:39 +0200 Message-ID: <1506613003-28376-1-git-send-email-pierre-yves.mordret@st.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.75.127.46] X-ClientProxiedBy: SFHDAG3NODE1.st.com (10.75.127.7) To SFHDAG5NODE2.st.com (10.75.127.14) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-09-28_04:, , signatures=0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This patchset adds support for the STM32 MDMA controller. The Master Direct memory access (MDMA) provides high-speed data transfer between memory and memory or between peripherals and memory. Contrary to STM32 DMA, the STM32 MDMA controller supports hardware LLI and uses a larger integrated FIFO (128 vs 16 bytes) --- Version history: v5: * Change 'platform_driver_probe' into 'platform_driver_register' to manage defer mechanism v4: * Add safe getter/setter macros * forbid DMA preparation in cyclic mode yet * Optimize burst and memory width for memcpy * replace of_property_xx by device_property_xx v3: * Update header template * Unsigned expression compared with zero * Rework stm32_mdma_get_max_width * moved to src/dst case where they are used in set_xfer * Change of_property_* with device_property_* * Add dev_warn whether default value is used * Indentation * Add MODULE_* v2: * change compatible into st,stm32h7-mdma to be more SoC specific * Add MDMA support in DT for H7 * Add MDMA support in STM32 defconfig --- Pierre-Yves MORDRET (4): dt-bindings: Document the STM32 MDMA bindings dmaengine: Add STM32 MDMA driver ARM: dts: stm32: Add MDMA support for STM32H743 SoC ARM: configs: stm32: Add MDMA support in STM32 defconfig .../devicetree/bindings/dma/stm32-mdma.txt | 94 ++ arch/arm/boot/dts/stm32h743.dtsi | 10 + arch/arm/configs/stm32_defconfig | 1 + drivers/dma/Kconfig | 12 + drivers/dma/Makefile | 1 + drivers/dma/stm32-mdma.c | 1666 ++++++++++++++++++++ 6 files changed, 1784 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/stm32-mdma.txt create mode 100644 drivers/dma/stm32-mdma.c