From mboxrd@z Thu Jan 1 00:00:00 1970 From: Charles Keepax Subject: [PATCH 07/17 v2] ASoC: wm8962: Update locking around use of DAPM pin API Date: Tue, 18 Feb 2014 15:22:18 +0000 Message-ID: <1392736948-26623-8-git-send-email-ckeepax@opensource.wolfsonmicro.com> References: <1392736948-26623-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> Return-path: In-Reply-To: <1392736948-26623-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> Sender: linux-kernel-owner@vger.kernel.org To: broonie@kernel.org Cc: myungjoo.ham@samsung.com, cw00.choi@samsung.com, dmitry.torokhov@gmail.com, lgirdwood@gmail.com, lars@metafoo.de, peter.ujfalusi@ti.com, jarkko.nikula@bitmer.com, eric.y.miao@gmail.com, haojian.zhuang@gmail.com, linux-kernel@vger.kernel.org, patches@opensource.wolfsonmicro.com, alsa-devel@alsa-project.org, linux@arm.linux.org.uk List-Id: alsa-devel@alsa-project.org 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/wm8962.c | 13 +++++++++---- 1 files changed, 9 insertions(+), 4 deletions(-) diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c index c06bb50..3be4633 100644 --- a/sound/soc/codecs/wm8962.c +++ b/sound/soc/codecs/wm8962.c @@ -3106,6 +3106,7 @@ static irqreturn_t wm8962_irq(int irq, void *data) int wm8962_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack) { struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec); + struct snd_soc_dapm_context *dapm = &codec->dapm; int irq_mask, enable; wm8962->jack = jack; @@ -3126,14 +3127,18 @@ int wm8962_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack) snd_soc_jack_report(wm8962->jack, 0, SND_JACK_MICROPHONE | SND_JACK_BTN_0); + snd_soc_dapm_mutex_lock(dapm); + if (jack) { - snd_soc_dapm_force_enable_pin(&codec->dapm, "SYSCLK"); - snd_soc_dapm_force_enable_pin(&codec->dapm, "MICBIAS"); + snd_soc_dapm_force_enable_pin_unlocked(dapm, "SYSCLK"); + snd_soc_dapm_force_enable_pin_unlocked(dapm, "MICBIAS"); } else { - snd_soc_dapm_disable_pin(&codec->dapm, "SYSCLK"); - snd_soc_dapm_disable_pin(&codec->dapm, "MICBIAS"); + snd_soc_dapm_disable_pin_unlocked(dapm, "SYSCLK"); + snd_soc_dapm_disable_pin_unlocked(dapm, "MICBIAS"); } + snd_soc_dapm_mutex_unlock(dapm); + return 0; } EXPORT_SYMBOL_GPL(wm8962_mic_detect); -- 1.7.2.5