[PATCH 12/17 v2] ASoC: omap: n810: Update locking around use of DAPM pin API

From: Charles Keepax
Date: Tue Feb 18 2014 - 10:33:05 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/n810.c | 22 +++++++++++++---------
1 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/sound/soc/omap/n810.c b/sound/soc/omap/n810.c
index 3fde9e4..480a39c 100644
--- a/sound/soc/omap/n810.c
+++ b/sound/soc/omap/n810.c
@@ -68,26 +68,30 @@ static void n810_ext_control(struct snd_soc_dapm_context *dapm)
break;
}

+ snd_soc_dapm_mutex_lock(dapm);
+
if (n810_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 (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 (line1l)
- snd_soc_dapm_enable_pin(dapm, "LINE1L");
+ snd_soc_dapm_enable_pin_unlocked(dapm, "LINE1L");
else
- snd_soc_dapm_disable_pin(dapm, "LINE1L");
+ snd_soc_dapm_disable_pin_unlocked(dapm, "LINE1L");

if (n810_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");
+
+ snd_soc_dapm_sync_unlocked(dapm);

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

static int n810_startup(struct snd_pcm_substream *substream)
--
1.7.2.5

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