diff mbox

[06/17,v2] ASoC: wm5100: Update locking around use of DAPM pin API

Message ID 1392736948-26623-7-git-send-email-ckeepax@opensource.wolfsonmicro.com (mailing list archive)
State Accepted
Commit e951f267fd042ce6ca66449dd6d537b6126a10d7
Delegated to: Mark Brown
Headers show

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 <ckeepax@opensource.wolfsonmicro.com>
---
 sound/soc/codecs/wm5100.c |   12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)

Comments

Mark Brown Feb. 20, 2014, 10:26 a.m. UTC | #1 
On Tue, Feb 18, 2014 at 03:22:17PM +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.
diff mbox

Patch

diff --git a/sound/soc/codecs/wm5100.c b/sound/soc/codecs/wm5100.c
index 4e3e31a..492fe84 100644
--- a/sound/soc/codecs/wm5100.c
+++ b/sound/soc/codecs/wm5100.c
@@ -2100,6 +2100,7 @@  static void wm5100_micd_irq(struct wm5100_priv *wm5100)
 int wm5100_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack)
 {
 	struct wm5100_priv *wm5100 = snd_soc_codec_get_drvdata(codec);
+	struct snd_soc_dapm_context *dapm = &codec->dapm;
 
 	if (jack) {
 		wm5100->jack = jack;
@@ -2117,9 +2118,14 @@  int wm5100_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack)
 				    WM5100_ACCDET_RATE_MASK);
 
 		/* We need the charge pump to power MICBIAS */
-		snd_soc_dapm_force_enable_pin(&codec->dapm, "CP2");
-		snd_soc_dapm_force_enable_pin(&codec->dapm, "SYSCLK");
-		snd_soc_dapm_sync(&codec->dapm);
+		snd_soc_dapm_mutex_lock(dapm);
+
+		snd_soc_dapm_force_enable_pin_unlocked(dapm, "CP2");
+		snd_soc_dapm_force_enable_pin_unlocked(dapm, "SYSCLK");
+
+		snd_soc_dapm_sync_unlocked(dapm);
+
+		snd_soc_dapm_mutex_unlock(dapm);
 
 		/* We start off just enabling microphone detection - even a
 		 * plain headphone will trigger detection.