[07/17,v2] ASoC: wm8962: Update locking around use of DAPM pin API

Commit Message

Charles Keepax Feb. 18, 2014, 3:22 p.m. UTC

The pin updates in this driver look like they are intended to be done
atomically, update to do so.

Signed-off-by: Charles Keepax <[e-mail]>
---
 sound/soc/codecs/wm8962.c |   13 +++++++++----
 1 files changed, 9 insertions(+), 4 deletions(-)

Comments

Mark Brown Feb. 20, 2014, 10:26 a.m. UTC | #1

On Tue, Feb 18, 2014 at 03:22:18PM +0000, Charles Keepax wrote:
> The pin updates in this driver look like they are intended to be done
> atomically, update to do so.

Applied, thanks.

Patch

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);