From patchwork Wed Aug 7 10:19:28 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Mack X-Patchwork-Id: 2840122 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 30D62BF535 for ; Wed, 7 Aug 2013 10:22:41 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D7C83201E3 for ; Wed, 7 Aug 2013 10:22:39 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2B4FA201E2 for ; Wed, 7 Aug 2013 10:22:35 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1V70rx-0002e9-P1; Wed, 07 Aug 2013 10:21:31 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1V70rW-0003Iu-Vr; Wed, 07 Aug 2013 10:21:03 +0000 Received: from svenfoo.org ([82.94.215.22] helo=mail.zonque.de) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1V70qs-0003Cg-Pq for linux-arm-kernel@lists.infradead.org; Wed, 07 Aug 2013 10:20:26 +0000 Received: from localhost (localhost [127.0.0.1]) by mail.zonque.de (Postfix) with ESMTP id 0DBC9C05A4; Wed, 7 Aug 2013 12:19:47 +0200 (CEST) Received: from mail.zonque.de ([127.0.0.1]) by localhost (rambrand.bugwerft.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id xcgKRjABIeOm; Wed, 7 Aug 2013 12:19:46 +0200 (CEST) Received: from tamtam.fritz.box (p5DDC7ADB.dip0.t-ipconnect.de [93.220.122.219]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.zonque.de (Postfix) with ESMTPSA id 1BE1DC059D; Wed, 7 Aug 2013 12:19:46 +0200 (CEST) From: Daniel Mack To: vinod.koul@intel.com, djbw@fb.com Subject: [PATCH 10/12] dma: mmp_pdma: implement DMA_PAUSE and DMA_RESUME Date: Wed, 7 Aug 2013 12:19:28 +0200 Message-Id: <1375870770-14263-11-git-send-email-zonque@gmail.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1375870770-14263-1-git-send-email-zonque@gmail.com> References: <1375870770-14263-1-git-send-email-zonque@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130807_062023_644632_5B97FF18 X-CRM114-Status: UNSURE ( 7.94 ) X-CRM114-Notice: Please train this message. X-Spam-Score: 1.5 (+) Cc: wangx@marvell.com, eric.y.miao@gmail.com, nico@fluxnic.net, haojian.zhuang@gmail.com, Daniel Mack , cxie4@marvell.com, ezequiel.garcia@free-electrons.com, linux@arm.linux.org.uk, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, FREEMAIL_FROM,KHOP_BIG_TO_CC,RCVD_IN_DNSWL_MED,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 This is needed at least for audio operation. Signed-off-by: Daniel Mack --- drivers/dma/mmp_pdma.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c index 7eb235b..c56da7c 100644 --- a/drivers/dma/mmp_pdma.c +++ b/drivers/dma/mmp_pdma.c @@ -658,6 +658,12 @@ static int mmp_pdma_control(struct dma_chan *dchan, enum dma_ctrl_cmd cmd, if (cfg->slave_id) chan->drcmr = cfg->slave_id; break; + case DMA_PAUSE: + disable_chan(chan->phy); + break; + case DMA_RESUME: + start_pending_queue(chan); + break; default: return -ENOSYS; }