[PATCH 03/15] ASoC: adav80x: Update locking around use of DAPM pin API

From: Charles Keepax
Date: Mon Feb 17 2014 - 12:03:46 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/codecs/adav80x.c | 14 ++++++++++----
1 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/adav80x.c b/sound/soc/codecs/adav80x.c
index f78b27a..aacb2c03 100644
--- a/sound/soc/codecs/adav80x.c
+++ b/sound/soc/codecs/adav80x.c
@@ -600,15 +600,21 @@ static int adav80x_set_sysclk(struct snd_soc_codec *codec,
adav80x->sysclk_pd[clk_id] = false;
}

+ mutex_lock(&codec->dapm.card->dapm_mutex);
+
if (adav80x->sysclk_pd[0])
- snd_soc_dapm_disable_pin(&codec->dapm, "PLL1");
+ snd_soc_dapm_disable_pin_locked(&codec->dapm, "PLL1");
else
- snd_soc_dapm_force_enable_pin(&codec->dapm, "PLL1");
+ snd_soc_dapm_force_enable_pin_locked(&codec->dapm,
+ "PLL1");

if (adav80x->sysclk_pd[1] || adav80x->sysclk_pd[2])
- snd_soc_dapm_disable_pin(&codec->dapm, "PLL2");
+ snd_soc_dapm_disable_pin_locked(&codec->dapm, "PLL2");
else
- snd_soc_dapm_force_enable_pin(&codec->dapm, "PLL2");
+ snd_soc_dapm_force_enable_pin_locked(&codec->dapm,
+ "PLL2");
+
+ mutex_unlock(&codec->dapm.card->dapm_mutex);

snd_soc_dapm_sync(&codec->dapm);
}
--
1.7.2.5

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