ASoC: wm8994: Add debounce to wm8994 mic detection
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 98e462cb..5451288 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -3059,22 +3059,20 @@
}
EXPORT_SYMBOL_GPL(wm8994_mic_detect);
-static irqreturn_t wm8994_mic_irq(int irq, void *data)
+static void wm8994_mic_work(struct work_struct *work)
{
- struct wm8994_priv *priv = data;
+ struct wm8994_priv *priv = container_of(work,
+ struct wm8994_priv,
+ mic_work.work);
struct snd_soc_codec *codec = priv->codec;
int reg;
int report;
-#ifndef CONFIG_SND_SOC_WM8994_MODULE
- trace_snd_soc_jack_irq(dev_name(codec->dev));
-#endif
-
reg = snd_soc_read(codec, WM8994_INTERRUPT_RAW_STATUS_2);
if (reg < 0) {
dev_err(codec->dev, "Failed to read microphone status: %d\n",
reg);
- return IRQ_HANDLED;
+ return;
}
dev_dbg(codec->dev, "Microphone status: %x\n", reg);
@@ -3116,6 +3114,20 @@
snd_soc_jack_report(priv->micdet[1].jack, report,
SND_JACK_HEADSET | SND_JACK_BTN_0);
+}
+
+static irqreturn_t wm8994_mic_irq(int irq, void *data)
+{
+ struct wm8994_priv *priv = data;
+ struct snd_soc_codec *codec = priv->codec;
+
+#ifndef CONFIG_SND_SOC_WM8994_MODULE
+ trace_snd_soc_jack_irq(dev_name(codec->dev));
+#endif
+
+ pm_wakeup_event(codec->dev, 300);
+
+ schedule_delayed_work(&priv->mic_work, msecs_to_jiffies(250));
return IRQ_HANDLED;
}
@@ -3488,6 +3500,7 @@
wm8994->codec = codec;
mutex_init(&wm8994->accdet_lock);
+ INIT_DELAYED_WORK(&wm8994->mic_work, wm8994_mic_work);
for (i = 0; i < ARRAY_SIZE(wm8994->fll_locked); i++)
init_completion(&wm8994->fll_locked[i]);