From patchwork Fri Jun 14 08:17:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Gong X-Patchwork-Id: 10994655 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3AD8C13AD for ; Fri, 14 Jun 2019 08:16:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2F22D22A68 for ; Fri, 14 Jun 2019 08:16:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 22BDE27F8C; Fri, 14 Jun 2019 08:16:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B6A7D22A68 for ; Fri, 14 Jun 2019 08:16:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726693AbfFNIPq (ORCPT ); Fri, 14 Jun 2019 04:15:46 -0400 Received: from inva020.nxp.com ([92.121.34.13]:50254 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726719AbfFNIPq (ORCPT ); Fri, 14 Jun 2019 04:15:46 -0400 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 10AB81A05C7; Fri, 14 Jun 2019 10:15:44 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id F12D11A05D0; Fri, 14 Jun 2019 10:15:37 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 473C3402E6; Fri, 14 Jun 2019 16:15:30 +0800 (SGT) From: yibin.gong@nxp.com To: robh@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, mark.rutland@arm.com, vkoul@kernel.org, dan.j.williams@intel.com, angelo@sysam.it Cc: linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH v4 0/6] add edma2 for i.mx7ulp Date: Fri, 14 Jun 2019 16:17:18 +0800 Message-Id: <20190614081724.13366-1-yibin.gong@nxp.com> X-Mailer: git-send-email 2.17.1 X-Virus-Scanned: ClamAV using ClamSMTP Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Robin Gong This patch set add new version of edma for i.mx7ulp, the main changes are as belows: 1. only one dmamux. 2. another clock dma_clk except dmamux clk. 3. 16 independent interrupts instead of only one interrupt for all channels For the first change, need modify fsl-edma-common.c and mcf-edma, so create the first two patches to prepare without any function impact. For the third change, need request single irq for every channel with the legacy handler. But actually 2 dma channels share one interrupt(16 channel interrupts, but 32 channels.),ch0/ch16,ch1/ch17... For now, just simply request irq without IRQF_SHARED flag, since 16 channels are enough on i.mx7ulp whose M4 domain own some peripherals. change from v1: 1. check .data of 'of_device_id' in probe instead of compatible name. change from v2: 1. move the difference between edma and edma2 into driver data so that no need version checking in fsl-edma.c. change from v3: 1. remove duplicated 'version' and 'dmamux_nr' in 'struct fsl_edma_engine' since they are included in drvdata already. 2. downgrade print log level. 3. address some minor indent issues raised by Vinod. Robin Gong (6): dmaengine: fsl-edma: add drvdata for fsl-edma dmaengine: fsl-edma-common: move dmamux register to another single function dmaengine: fsl-edma-common: version check for v2 instead dt-bindings: dma: fsl-edma: add new i.mx7ulp-edma dmaengine: fsl-edma: add i.mx7ulp edma2 version support ARM: dts: imx7ulp: add edma device node Documentation/devicetree/bindings/dma/fsl-edma.txt | 44 ++++++++- arch/arm/boot/dts/imx7ulp.dtsi | 28 ++++++ drivers/dma/fsl-edma-common.c | 83 ++++++++++------ drivers/dma/fsl-edma-common.h | 14 ++- drivers/dma/fsl-edma.c | 109 ++++++++++++++++++--- drivers/dma/mcf-edma.c | 11 ++- 6 files changed, 239 insertions(+), 50 deletions(-)