From patchwork Wed May 29 09:08:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Gong X-Patchwork-Id: 10966523 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 2EEC0112C for ; Wed, 29 May 2019 09:07:14 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2215D28511 for ; Wed, 29 May 2019 09:07:14 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1613C288D2; Wed, 29 May 2019 09:07:14 +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 88D0F28511 for ; Wed, 29 May 2019 09:07:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726254AbfE2JHM (ORCPT ); Wed, 29 May 2019 05:07:12 -0400 Received: from inva020.nxp.com ([92.121.34.13]:47846 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725956AbfE2JHL (ORCPT ); Wed, 29 May 2019 05:07:11 -0400 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id EC31B1A025A; Wed, 29 May 2019 11:07:08 +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 4608A1A11C4; Wed, 29 May 2019 11:07:03 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 07158402F1; Wed, 29 May 2019 17:06:55 +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 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 v3 1/8] dmaengine: fsl-edma: add dmamux_nr for next version Date: Wed, 29 May 2019 17:08:41 +0800 Message-Id: <20190529090848.34350-2-yibin.gong@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190529090848.34350-1-yibin.gong@nxp.com> References: <20190529090848.34350-1-yibin.gong@nxp.com> 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 Next version of edma such as edmav2 on i.mx7ulp has only one dmamux. Add dmamux_nr instead of static macro define 'DMAMUX_NR'. No any function change here. Signed-off-by: Robin Gong --- drivers/dma/fsl-edma-common.h | 1 + drivers/dma/fsl-edma.c | 11 ++++++----- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h index c53f76e..21a9cfd 100644 --- a/drivers/dma/fsl-edma-common.h +++ b/drivers/dma/fsl-edma-common.h @@ -145,6 +145,7 @@ struct fsl_edma_engine { void __iomem *membase; void __iomem *muxbase[DMAMUX_NR]; struct clk *muxclk[DMAMUX_NR]; + u32 dmamux_nr; struct mutex fsl_edma_mutex; u32 n_chans; int txirq; diff --git a/drivers/dma/fsl-edma.c b/drivers/dma/fsl-edma.c index d641ef8..7b65ef4 100644 --- a/drivers/dma/fsl-edma.c +++ b/drivers/dma/fsl-edma.c @@ -96,7 +96,7 @@ static struct dma_chan *fsl_edma_xlate(struct of_phandle_args *dma_spec, struct fsl_edma_engine *fsl_edma = ofdma->of_dma_data; struct dma_chan *chan, *_chan; struct fsl_edma_chan *fsl_chan; - unsigned long chans_per_mux = fsl_edma->n_chans / DMAMUX_NR; + unsigned long chans_per_mux = fsl_edma->n_chans / fsl_edma->dmamux_nr; if (dma_spec->args_count != 2) return NULL; @@ -206,6 +206,7 @@ static int fsl_edma_probe(struct platform_device *pdev) return -ENOMEM; fsl_edma->version = v1; + fsl_edma->dmamux_nr = DMAMUX_NR; fsl_edma->n_chans = chans; mutex_init(&fsl_edma->fsl_edma_mutex); @@ -217,7 +218,7 @@ static int fsl_edma_probe(struct platform_device *pdev) fsl_edma_setup_regs(fsl_edma); regs = &fsl_edma->regs; - for (i = 0; i < DMAMUX_NR; i++) { + for (i = 0; i < fsl_edma->dmamux_nr; i++) { char clkname[32]; res = platform_get_resource(pdev, IORESOURCE_MEM, 1 + i); @@ -295,7 +296,7 @@ static int fsl_edma_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "Can't register Freescale eDMA engine. (%d)\n", ret); - fsl_disable_clocks(fsl_edma, DMAMUX_NR); + fsl_disable_clocks(fsl_edma, fsl_edma->dmamux_nr); return ret; } @@ -304,7 +305,7 @@ static int fsl_edma_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Can't register Freescale eDMA of_dma. (%d)\n", ret); dma_async_device_unregister(&fsl_edma->dma_dev); - fsl_disable_clocks(fsl_edma, DMAMUX_NR); + fsl_disable_clocks(fsl_edma, fsl_edma->dmamux_nr); return ret; } @@ -323,7 +324,7 @@ static int fsl_edma_remove(struct platform_device *pdev) fsl_edma_cleanup_vchan(&fsl_edma->dma_dev); of_dma_controller_free(np); dma_async_device_unregister(&fsl_edma->dma_dev); - fsl_disable_clocks(fsl_edma, DMAMUX_NR); + fsl_disable_clocks(fsl_edma, fsl_edma->dmamux_nr); return 0; }