From patchwork Thu Jan 24 12:35:31 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chandrasekar R X-Patchwork-Id: 2031661 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id 05315DF264 for ; Thu, 24 Jan 2013 12:42:14 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TyM5p-0007z3-RU; Thu, 24 Jan 2013 12:39:45 +0000 Received: from mailout4.samsung.com ([203.254.224.34]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TyM5l-0007xf-TS for linux-arm-kernel@lists.infradead.org; Thu, 24 Jan 2013 12:39:42 +0000 Received: from epcpsbgm1.samsung.com (epcpsbgm1 [203.254.230.26]) by mailout4.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0MH40077IR63OU01@mailout4.samsung.com> for linux-arm-kernel@lists.infradead.org; Thu, 24 Jan 2013 21:39:39 +0900 (KST) Received: from epcpsbgm1.samsung.com ( [172.20.52.122]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id BD.6E.03918.B8B21015; Thu, 24 Jan 2013 21:39:39 +0900 (KST) X-AuditID: cbfee61a-b7f7d6d000000f4e-2b-51012b8b11f5 Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id EC.6E.03918.A8B21015; Thu, 24 Jan 2013 21:39:38 +0900 (KST) Received: from sekar-ubuntu.sisodomain.com ([107.108.73.178]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MH4007KRR2EEQ50@mmp1.samsung.com> for linux-arm-kernel@lists.infradead.org; Thu, 24 Jan 2013 21:39:38 +0900 (KST) From: "R. Chandrasekar" To: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, alsa-devel@alsa-project.org Subject: [PATCH] Asoc: Samsung: Add I2S S/W RST in startup function Date: Thu, 24 Jan 2013 18:05:31 +0530 Message-id: <1359030931-27354-2-git-send-email-rcsekar@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-reply-to: <1359030931-27354-1-git-send-email-rcsekar@samsung.com> References: <1359030931-27354-1-git-send-email-rcsekar@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrELMWRmVeSWpSXmKPExsWyRsSkSrdbmzHQ4MJLdotNj6+xOjB6bF5S H8AYxWWTkpqTWZZapG+XwJWxesd6toIL7BWHD55ibGBcydbFyMkhIWAiceVQCzOELSZx4d56 oDgXh5DAUkaJzRu6GWGKfn5/yQSRWMQo8evFHShnK5PEzlM/wNrZBHQl3nc8YAGxRQSyJDZP X88CUsQssI5R4s2GL0AOB4ewgLPEgp/GIDUsAqoSn89cBNvACxS+ePQeO0iJhICCxJxJNiBh TgEXiTmnJjKB2EJAJa+aFoONlBC4zibx9d0tdog5AhLfJh9igeiVldh0AOobSYmDK26wTGAU XsDIsIpRNLUguaA4KT3XUK84Mbe4NC9dLzk/dxMjMARP/3smtYNxZYPFIUYBDkYlHl4FVYZA IdbEsuLK3EOMEhzMSiK861kYA4V4UxIrq1KL8uOLSnNSiw8xJgMtn8gsJZqcD4yPvJJ4Q2MT c1NjU0sjIzNTU9KElcR5GU89CRASSE8sSc1OTS1ILYLZwsTBKdXA6MYl+7jpzKd5MiyRBx8+ FTDbOEvkS4tx7iTRrI3r3zipsX/f+SM0ZS1/e6iEu+zzLxnHEni2TtC/YrCex/7k/iuPp0pM Puhc0XzQfK66KNuVRYKlW/mtn1/oueLlu1Ti/SnpLBnLHzVHVhn8Edey9brFXPk7Jb5C0aDV w/mJEuu7x2cEjD6uV2Ipzkg01GIuKk4EAP8jyqmFAgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrIIsWRmVeSWpSXmKPExsVy+t9jAd0ubcZAg5P3TS02Pb7G6sDosXlJ fQBjVAOjTUZqYkpqkUJqXnJ+SmZeuq2Sd3C8c7ypmYGhrqGlhbmSQl5ibqqtkotPgK5bZg7Q VCWFssScUqBQQGJxsZK+HaYJoSFuuhYwjRG6viFBcD1GBmggYQ1jxuod69kKLrBXHD54irGB cSVbFyMnh4SAicTP7y+ZIGwxiQv31gPFuTiEBBYxSvx6cYcJwtnKJLHz1A9mkCo2AV2J9x0P WEBsEYEsic3T17OAFDELrGOUeLPhC5DDwSEs4Cyx4KcxSA2LgKrE5zMXGUFsXqDwxaP32EFK JAQUJOZMsgEJcwq4SMw5NRHsCCGgkldNi1kmMPIuYGRYxSiaWpBcUJyUnmuoV5yYW1yal66X nJ+7iREc4M+kdjCubLA4xCjAwajEw6ugyhAoxJpYVlyZe4hRgoNZSYR3PQtjoBBvSmJlVWpR fnxRaU5q8SHGZKCjJjJLiSbnA6MvryTe0NjE3NTY1NLEwsTMkjRhJXFexlNPAoQE0hNLUrNT UwtSi2C2MHFwSjUwzhBZ+SbiZ1OAWZnSvn0fReeqrud8PnVJpdHyhxFFzFzyE0xN5vhJb158 Z7IHo5G9lb3oxdavcaJrjrtnsktwS9jcrdNVcw8S8heZfa59dvPJooBe6wte72Ult+TwRIak nfENU1DaKrhq4oTzW1J5PNKe8RQbPQmSPBuSKDBth55vEps7x2IlluKMREMt5qLiRACbCSFS tAIAAA== DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130124_073942_191590_4B775E0D X-CRM114-Status: GOOD ( 10.58 ) X-Spam-Score: -7.6 (-------) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-7.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [203.254.224.34 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: jassisinghbrar@gmail.com, kgene.kim@samsung.com, Padmavathi Venna , sbkim73@samsung.com, broonie@opensource.wolfsonmicro.com, ben-linux@fluff.org 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 From: Padmavathi Venna I2S module need to be reset after S2R. Keeping the S/W rst control part in resume didn't help in playing audio after resume. So this patch adds S/W RST control part in startup function which gets triggered for every new audio stream playback. Signed-off-by: Padmavathi Venna Signed-off-by: R. Chandrasekar --- sound/soc/samsung/i2s.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c index 27a5ab1..9f098cd 100644 --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -651,6 +651,9 @@ static int i2s_startup(struct snd_pcm_substream *substream, /* Enforce set_sysclk in Master mode */ i2s->rclk_srcrate = 0; + if (!any_active(i2s) && (i2s->quirks & QUIRK_NEED_RSTCLR)) + writel(CON_RSTCLR, i2s->addr + I2SCON); + spin_unlock_irqrestore(&lock, flags); return 0;