From patchwork Tue Sep 29 20:44:46 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: hamzahfrq.sub@gmail.com X-Patchwork-Id: 7289901 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: X-Original-To: patchwork-linux-sh@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id A48C19F1D5 for ; Tue, 29 Sep 2015 20:45:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id DB74B2066F for ; Tue, 29 Sep 2015 20:45:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0984D2060A for ; Tue, 29 Sep 2015 20:45:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754517AbbI2UpX (ORCPT ); Tue, 29 Sep 2015 16:45:23 -0400 Received: from mail-wi0-f169.google.com ([209.85.212.169]:33956 "EHLO mail-wi0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754292AbbI2UpN (ORCPT ); Tue, 29 Sep 2015 16:45:13 -0400 Received: by wicfx3 with SMTP id fx3so168353656wic.1; Tue, 29 Sep 2015 13:45:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=I3PTsIrMPrFoHobLK0GW/6tRrVZ24eeGNLVDDt2LYyk=; b=z8NQTq92CmIQp2pkSW/Lp88Vf8I+8Fs3QL2hme+QOX5gu9hxeooGNdLzIC0XIDAFU2 9jDbifrviwUhiipZwBSCaojMEGHTkLtshBk0wtKMhbMNjlIm4/4r4ysLFvzv6gE1b3Y1 wganiEGVdb1kuiIq4q/JAOutWOK50ekq1/kaOgfGmKwB9tYQfxCwSeJqL2oNlaT32haI mqzqE5sh6yOu3yQqwsMGMZFbI+/M5phswlC53Q5oOmyAPhFqzF6tVGlkl5oNt0L6NVgA ExDxaKcjaA1LI+B//GXzh8Lj3VTWbMk939hUdAh33O4XY3aI/pjl75rVL+XNpZ7mpynN XjDA== X-Received: by 10.194.117.164 with SMTP id kf4mr8045wjb.9.1443559511645; Tue, 29 Sep 2015 13:45:11 -0700 (PDT) Received: from ubuntu-VirtualBox.fritz.box (p5B02D56B.dip0.t-ipconnect.de. [91.2.213.107]) by smtp.googlemail.com with ESMTPSA id c2sm25721838wiy.11.2015.09.29.13.45.10 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 29 Sep 2015 13:45:11 -0700 (PDT) From: hamzahfrq.sub@gmail.com Cc: dmaengine@vger.kernel.org, j@bitron.ch, joe@perches.com, kuninori.morimoto.gx@renesas.com, broonie@kernel.org, geert+renesas@glider.be, vinod.koul@intel.com, laurent.pinchart+renesas@ideasonboard.com, linux-sh@vger.kernel.org, jacob@teenageengineering.com, Muhammad Hamza Farooq Subject: [PATCH v3 4/6] dma: rcar-dma: use result of updated get_residue in tx_status Date: Tue, 29 Sep 2015 22:44:46 +0200 Message-Id: <1443559488-2416-5-git-send-email-hamzahfrq.sub@gmail.com> X-Mailer: git-send-email 1.7.9.5 To: unlisted-recipients:; (no To-header on input) Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Muhammad Hamza Farooq Signed-off-by: Muhammad Hamza Farooq --- drivers/dma/sh/rcar-dmac.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c index 6c806d0..0b5a367 100644 --- a/drivers/dma/sh/rcar-dmac.c +++ b/drivers/dma/sh/rcar-dmac.c @@ -1258,6 +1258,10 @@ static enum dma_status rcar_dmac_tx_status(struct dma_chan *chan, residue = rcar_dmac_chan_get_residue(rchan, cookie); spin_unlock_irqrestore(&rchan->lock, flags); + /* if there's no residue, the cookie is complete */ + if (!residue) + return DMA_COMPLETE; + dma_set_residue(txstate, residue); return status;