This patch adds support to the codec driver to handle mic level detect related IRQs, and report these to user-space using a uevent variable.
Signed-off-by: Adam Thomson Adam.Thomson.Opensource@diasemi.com --- sound/soc/codecs/da7218.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-)
diff --git a/sound/soc/codecs/da7218.c b/sound/soc/codecs/da7218.c index 4fee7ae..752ed04 100644 --- a/sound/soc/codecs/da7218.c +++ b/sound/soc/codecs/da7218.c @@ -2202,6 +2202,16 @@ int da7218_hpldet(struct snd_soc_codec *codec, struct snd_soc_jack *jack) } EXPORT_SYMBOL_GPL(da7218_hpldet);
+static void da7218_micldet_irq(struct snd_soc_codec *codec) +{ + char *envp[] = { + "EVENT=MIC_LEVEL_DETECT", + NULL, + }; + + kobject_uevent_env(&codec->dev->kobj, KOBJ_CHANGE, envp); +} + static void da7218_hpldet_irq(struct snd_soc_codec *codec) { struct da7218_priv *da7218 = snd_soc_codec_get_drvdata(codec); @@ -2232,6 +2242,10 @@ static irqreturn_t da7218_irq_thread(int irq, void *data) if (!status) return IRQ_NONE;
+ /* Mic level detect */ + if (status & DA7218_LVL_DET_EVENT_MASK) + da7218_micldet_irq(codec); + /* HP detect */ if (status & DA7218_HPLDET_JACK_EVENT_MASK) da7218_hpldet_irq(codec); @@ -2936,11 +2950,6 @@ static int da7218_probe(struct snd_soc_codec *codec) }
if (da7218->irq) { - /* Mask off mic level events, currently not handled */ - snd_soc_update_bits(codec, DA7218_EVENT_MASK, - DA7218_LVL_DET_EVENT_MSK_MASK, - DA7218_LVL_DET_EVENT_MSK_MASK); - ret = devm_request_threaded_irq(codec->dev, da7218->irq, NULL, da7218_irq_thread, IRQF_TRIGGER_LOW | IRQF_ONESHOT, -- 1.9.3