On Thu, 03 Dec 2015 11:45:50 +0100, Adam Thomson wrote: > > 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.
Is the uevent the best way for this? thanks, Takashi > > Signed-off-by: Adam Thomson <[email protected]> > --- > 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 > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
