From patchwork Fri Feb 1 18:22:52 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Porter X-Patchwork-Id: 2081851 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id 5CDD840106 for ; Fri, 1 Feb 2013 18:26:02 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1U1LGi-0005Qg-4J; Fri, 01 Feb 2013 18:23:20 +0000 Received: from mail-ie0-x236.google.com ([2607:f8b0:4001:c03::236]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1U1LFy-00059D-Ml for linux-arm-kernel@lists.infradead.org; Fri, 01 Feb 2013 18:22:35 +0000 Received: by mail-ie0-f182.google.com with SMTP id k14so3749239iea.27 for ; Fri, 01 Feb 2013 10:22:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:sender:from:to:cc:subject:date:message-id:x-mailer :in-reply-to:references; bh=6t9BXydIs9bvB3BGVu6x9RwRRW5cUQnT6mPIIv6RMN0=; b=DaJBjPY/IjjvxcIqeNOWzLnJA8Leemchi5zg2PXNxFkGaus1lhYQ8m0i6QL1li0e6A oNkcKuKeHZZFG7vtXtY4XSwQTnoZaH78q9QaSI/BwPIZv67uVEhuyOtxrTJap2OTzqg2 pEHMXFEld2aqOcTqQtkxetQYs+yHvW0dvJAYuvoSOmy+f1orCeMIwDPDr12cS1ZsYUII Kz6w7rCcbwINMWEEPpxOUNyur72V+bltiE5T4IA3kWNqfSalxKoZYLNWYpvHHm6pPz5E jXcywNqMyr6y6trE9QZarzYQMrZh08UXFWBuKDctwch4pyMiPgo9YJGRF0r1htU3sok7 yC4w== X-Received: by 10.50.149.196 with SMTP id uc4mr1953160igb.74.1359742953956; Fri, 01 Feb 2013 10:22:33 -0800 (PST) Received: from beef.ohporter.com (cpe-24-166-64-7.neo.res.rr.com. [24.166.64.7]) by mx.google.com with ESMTPS id b13sm3496854igp.7.2013.02.01.10.22.32 (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 01 Feb 2013 10:22:33 -0800 (PST) From: Matt Porter To: Tony Lindgren , Sekhar Nori , Grant Likely , Mark Brown , Benoit Cousson , Russell King , Vinod Koul , Rob Landley , Chris Ball Subject: [PATCH v7 07/10] dmaengine: add dma_request_slave_channel_compat() Date: Fri, 1 Feb 2013 13:22:52 -0500 Message-Id: <1359742975-10421-8-git-send-email-mporter@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1359742975-10421-1-git-send-email-mporter@ti.com> References: <1359742975-10421-1-git-send-email-mporter@ti.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130201_132234_828713_53631D2F X-CRM114-Status: GOOD ( 13.13 ) X-Spam-Score: 1.1 (+) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (1.1 points) pts rule name description ---- ---------------------- -------------------------------------------------- 3.0 KHOP_BIG_TO_CC Sent to 10+ recipients instaed of Bcc or a list 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (ohiomdp[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature Cc: Linux DaVinci Kernel List , Arnd Bergmann , Linux Documentation List , Devicetree Discuss , Linux MMC List , Linux Kernel Mailing List , Rob Herring , Dan Williams , Linux SPI Devel List , Linux OMAP List , Linux ARM Kernel List X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Adds a dma_request_slave_channel_compat() wrapper which accepts both the arguments from dma_request_channel() and dma_request_slave_channel(). Based on whether the driver is instantiated via DT, the appropriate channel request call will be made. This allows for a much cleaner migration of drivers to the dmaengine DT API as platforms continue to be mixed between those that boot using DT and those that do not. Suggested-by: Tony Lindgren Signed-off-by: Matt Porter Acked-by: Tony Lindgren Acked-by: Arnd Bergmann Acked-by: Vinod Koul --- include/linux/dmaengine.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index bfcdecb..17d8ffd 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -1001,6 +1001,22 @@ void dma_run_dependencies(struct dma_async_tx_descriptor *tx); struct dma_chan *dma_find_channel(enum dma_transaction_type tx_type); struct dma_chan *net_dma_find_channel(void); #define dma_request_channel(mask, x, y) __dma_request_channel(&(mask), x, y) +#define dma_request_slave_channel_compat(mask, x, y, dev, name) \ + __dma_request_slave_channel_compat(&(mask), x, y, dev, name) + +static inline struct dma_chan +*__dma_request_slave_channel_compat(dma_cap_mask_t *mask, dma_filter_fn fn, + void *fn_param, struct device *dev, + char *name) +{ + struct dma_chan *chan; + + chan = dma_request_slave_channel(dev, name); + if (chan) + return chan; + + return __dma_request_channel(mask, fn, fn_param); +} /* --- Helper iov-locking functions --- */