From patchwork Fri Sep 14 15:43:28 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wolfram Sang X-Patchwork-Id: 10600973 X-Patchwork-Delegate: geert@linux-m68k.org 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 A57EB933 for ; Fri, 14 Sep 2018 15:43:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8E54A2B386 for ; Fri, 14 Sep 2018 15:43:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 824B32BAC6; Fri, 14 Sep 2018 15:43:38 +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=unavailable 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 842D92B386 for ; Fri, 14 Sep 2018 15:43:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727152AbeINU6j (ORCPT ); Fri, 14 Sep 2018 16:58:39 -0400 Received: from sauhun.de ([88.99.104.3]:46048 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726845AbeINU6j (ORCPT ); Fri, 14 Sep 2018 16:58:39 -0400 Received: from localhost (p54B33424.dip0.t-ipconnect.de [84.179.52.36]) by pokefinder.org (Postfix) with ESMTPSA id 97AFF2C015D; Fri, 14 Sep 2018 17:43:32 +0200 (CEST) From: Wolfram Sang To: dmaengine@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Geert Uytterhoeven , Wolfram Sang Subject: [PATCH] dmaengine: rcar-dmac: set scatter/gather max segment size Date: Fri, 14 Sep 2018 17:43:28 +0200 Message-Id: <20180914154328.984-1-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.18.0 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Fix warning when running with CONFIG_DMA_API_DEBUG_SG=y by allocating a device_dma_parameters structure and filling in the max segment size. Signed-off-by: Wolfram Sang --- Change since RFC: use better value, confirmed with Geert (thanks!) drivers/dma/sh/rcar-dmac.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c index 48ee35e2bce6..74fa2b1a6a86 100644 --- a/drivers/dma/sh/rcar-dmac.c +++ b/drivers/dma/sh/rcar-dmac.c @@ -198,6 +198,7 @@ struct rcar_dmac { struct dma_device engine; struct device *dev; void __iomem *iomem; + struct device_dma_parameters parms; unsigned int n_channels; struct rcar_dmac_chan *channels; @@ -1792,6 +1793,8 @@ static int rcar_dmac_probe(struct platform_device *pdev) dmac->dev = &pdev->dev; platform_set_drvdata(pdev, dmac); + dmac->dev->dma_parms = &dmac->parms; + dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK); dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40)); ret = rcar_dmac_parse_of(&pdev->dev, dmac);