From patchwork Mon Feb 17 16:51:35 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Charles Keepax X-Patchwork-Id: 3664171 Return-Path: X-Original-To: patchwork-alsa-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 7A7F19F1EE for ; Mon, 17 Feb 2014 17:04:14 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A370E201DE for ; Mon, 17 Feb 2014 17:04:13 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.kernel.org (Postfix) with ESMTP id B1A4A2020E for ; Mon, 17 Feb 2014 17:04:12 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id 8D95C2654B5; Mon, 17 Feb 2014 18:04:11 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=1.0 required=5.0 tests=BAYES_00,KHOP_BIG_TO_CC, UNPARSEABLE_RELAY autolearn=no version=3.3.1 Received: from alsa0.perex.cz (localhost [IPv6:::1]) by alsa0.perex.cz (Postfix) with ESMTP id 4F9372650D7; Mon, 17 Feb 2014 18:00:54 +0100 (CET) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id B7776264F45; Mon, 17 Feb 2014 18:00:50 +0100 (CET) Received: from opensource.wolfsonmicro.com (opensource.wolfsonmicro.com [80.75.67.52]) by alsa0.perex.cz (Postfix) with ESMTP id 5E9FA264F07 for ; Mon, 17 Feb 2014 18:00:09 +0100 (CET) Received: from localhost.localdomain (unknown [87.246.78.26]) by opensource.wolfsonmicro.com (Postfix) with ESMTPSA id 2252B3B40FB; Mon, 17 Feb 2014 17:00:05 +0000 (GMT) From: Charles Keepax To: broonie@kernel.org Date: Mon, 17 Feb 2014 16:51:35 +0000 Message-Id: <1392655903-24537-8-git-send-email-ckeepax@opensource.wolfsonmicro.com> X-Mailer: git-send-email 1.7.2.5 In-Reply-To: <1392655903-24537-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> References: <1392655903-24537-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> Cc: alsa-devel@alsa-project.org, lars@metafoo.de, eric.y.miao@gmail.com, dmitry.torokhov@gmail.com, lgirdwood@gmail.com, haojian.zhuang@gmail.com, linux-kernel@vger.kernel.org, peter.ujfalusi@ti.com, cw00.choi@samsung.com, myungjoo.ham@samsung.com, patches@opensource.wolfsonmicro.com, linux@arm.linux.org.uk, jarkko.nikula@bitmer.com Subject: [alsa-devel] [PATCH 07/15] ASoC: wm8996: Update locking around use of DAPM pin API X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Spam-Level: * X-Virus-Scanned: ClamAV using ClamSMTP The pin updates in this driver look like they are intended to be done atomically, update to do so. Signed-off-by: Charles Keepax --- sound/soc/codecs/wm8996.c | 8 ++++++-- 1 files changed, 6 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c index 1a7655b..a391128 100644 --- a/sound/soc/codecs/wm8996.c +++ b/sound/soc/codecs/wm8996.c @@ -2267,8 +2267,12 @@ int wm8996_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack, WM8996_MICB2_DISCH, 0); /* LDO2 powers the microphones, SYSCLK clocks detection */ - snd_soc_dapm_force_enable_pin(&codec->dapm, "LDO2"); - snd_soc_dapm_force_enable_pin(&codec->dapm, "SYSCLK"); + mutex_lock(&codec->dapm.card->dapm_mutex); + + snd_soc_dapm_force_enable_pin_locked(&codec->dapm, "LDO2"); + snd_soc_dapm_force_enable_pin_locked(&codec->dapm, "SYSCLK"); + + mutex_unlock(&codec->dapm.card->dapm_mutex); /* We start off just enabling microphone detection - even a * plain headphone will trigger detection.