[PATCH 13/17 v2] ASoC: omap: rx51: Update locking around use of DAPM pin API

From: Charles Keepax
Date: Tue Feb 18 2014 - 10:32:49 EST


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

Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
sound/soc/omap/rx51.c | 22 +++++++++++++---------
1 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/sound/soc/omap/rx51.c b/sound/soc/omap/rx51.c
index 611179c..7fb3d4b 100644
--- a/sound/soc/omap/rx51.c
+++ b/sound/soc/omap/rx51.c
@@ -74,26 +74,30 @@ static void rx51_ext_control(struct snd_soc_dapm_context *dapm)
break;
}

+ snd_soc_dapm_mutex_lock(dapm);
+
if (rx51_spk_func)
- snd_soc_dapm_enable_pin(dapm, "Ext Spk");
+ snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
else
- snd_soc_dapm_disable_pin(dapm, "Ext Spk");
+ snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
if (rx51_dmic_func)
- snd_soc_dapm_enable_pin(dapm, "DMic");
+ snd_soc_dapm_enable_pin_unlocked(dapm, "DMic");
else
- snd_soc_dapm_disable_pin(dapm, "DMic");
+ snd_soc_dapm_disable_pin_unlocked(dapm, "DMic");
if (hp)
- snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
+ snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
else
- snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
+ snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
if (hs)
- snd_soc_dapm_enable_pin(dapm, "HS Mic");
+ snd_soc_dapm_enable_pin_unlocked(dapm, "HS Mic");
else
- snd_soc_dapm_disable_pin(dapm, "HS Mic");
+ snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic");

gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);

- snd_soc_dapm_sync(dapm);
+ snd_soc_dapm_sync_unlocked(dapm);
+
+ snd_soc_dapm_mutex_unlock(dapm);
}

static int rx51_startup(struct snd_pcm_substream *substream)
--
1.7.2.5

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