From patchwork Mon Jul 1 08:39:34 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Genoud X-Patchwork-Id: 2806911 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 F2AEBBF4A1 for ; Mon, 1 Jul 2013 10:16:06 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CB5172016C for ; Mon, 1 Jul 2013 10:16:05 +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 939B320159 for ; Mon, 1 Jul 2013 10:16:04 +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 1UtZha-0003ri-6F; Mon, 01 Jul 2013 08:43:17 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UtZfn-0003Oq-JC; Mon, 01 Jul 2013 08:41:23 +0000 Received: from mail-wg0-x22a.google.com ([2a00:1450:400c:c00::22a]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UtZf3-0003G2-Ra for linux-arm-kernel@lists.infradead.org; Mon, 01 Jul 2013 08:40:38 +0000 Received: by mail-wg0-f42.google.com with SMTP id z11so3352656wgg.1 for ; Mon, 01 Jul 2013 01:40:15 -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:x-mailer:in-reply-to:references; bh=vIjXO+V7If/r12ymEUf5Nr8MdkCCGQPzTVJvYFPm3D4=; b=n/Z9oPuNmFzbEdhoesatV03y5rIDI7cmyT6eUj7qNs2bnCKS+GwoWAOi89ndClVNEw ykWh73DTpat/yBhtBK2IBCL8cLNulxXCv7J/eg1xX5qGHiWagY0BJMyNKZp2HFFHUEIc rBIlG+9EUGaJGrnrTgEsKN3E2EeUxGvibUkTpcO/Rx+a+hkh1hb4IrgzDHU1Xp9JShZA mhxKLww9CDqTPbEwSG1xcU8yhCK42lRDOZE2oe78Nr1QCZFiBLXCRWsucSD2+Tn3KE0T COIPS0mrtgei/QhlQO+8kI0BFTf3W2SfooPyDiepjeMZVO6lo3/c0rQ6mG9fQYnt549Z NjpQ== X-Received: by 10.180.20.46 with SMTP id k14mr11356996wie.14.1372668015700; Mon, 01 Jul 2013 01:40:15 -0700 (PDT) Received: from lnx-rg.pr (lyon.paratronic.fr. [213.41.177.106]) by mx.google.com with ESMTPSA id h8sm14786574wie.1.2013.07.01.01.40.13 for (version=TLSv1.2 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 01 Jul 2013 01:40:15 -0700 (PDT) From: Richard Genoud To: devicetree-discuss@lists.ozlabs.org Subject: [RFC PATCH 09/13] sound: atmel-pcm: don't return ok if pcm-dma is not implemented Date: Mon, 1 Jul 2013 10:39:34 +0200 Message-Id: <1372667978-4718-10-git-send-email-richard.genoud@gmail.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1372667978-4718-1-git-send-email-richard.genoud@gmail.com> References: <1372667978-4718-1-git-send-email-richard.genoud@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130701_044038_085127_67278BBC X-CRM114-Status: GOOD ( 10.81 ) X-Spam-Score: -2.0 (--) Cc: Richard Genoud , Nicolas Ferre , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= 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=-4.1 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, T_DKIM_INVALID, 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 If DMA is not selected, atmel_pcm_dma_platform_register() should fail. Like that, the driver knows it can't use it. Signed-off-by: Richard Genoud --- sound/soc/atmel/atmel-pcm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/atmel/atmel-pcm.h b/sound/soc/atmel/atmel-pcm.h index 12ae814..c0a01fa 100644 --- a/sound/soc/atmel/atmel-pcm.h +++ b/sound/soc/atmel/atmel-pcm.h @@ -109,7 +109,7 @@ void atmel_pcm_dma_platform_unregister(struct device *dev); #else static inline int atmel_pcm_dma_platform_register(struct device *dev) { - return 0; + return -1; } static inline void atmel_pcm_dma_platform_unregister(struct device *dev) {