We need to disable jack detection before entering suspend and enable it after resume.

This was essential as headphone jack widget will always remain on if a jack is inserted and results in no audio after system resumes from a suspend.

Signed-off-by: Senthilnathan Veppur senthilnathanx.veppur@intel.com Signed-off-by: Bard Liao bardliao@realtek.com --- sound/soc/codecs/rt298.c | 20 ++++++++++++++++++++ sound/soc/codecs/rt298.h | 2 ++ 2 files changed, 22 insertions(+)

diff --git a/sound/soc/codecs/rt298.c b/sound/soc/codecs/rt298.c index d403c20..629b038 100644 --- a/sound/soc/codecs/rt298.c +++ b/sound/soc/codecs/rt298.c @@ -1270,6 +1270,26 @@ static int rt298_i2c_remove(struct i2c_client *i2c) return 0; }

+void rt298_jack_suspend(struct snd_soc_codec *codec) +{ + struct rt298_priv *rt298 = snd_soc_codec_get_drvdata(codec); + struct snd_soc_dapm_context *dapm; + + dapm = snd_soc_codec_get_dapm(rt298->codec); + snd_soc_dapm_disable_pin(dapm, "LDO1"); + snd_soc_dapm_sync(dapm); +} +EXPORT_SYMBOL_GPL(rt298_jack_suspend); + +void rt298_jack_resume(struct snd_soc_codec *codec) +{ + struct rt298_priv *rt298 = snd_soc_codec_get_drvdata(codec); + bool hp = false; + bool mic = false; + + rt298_jack_detect(rt298, &hp, &mic); +} +EXPORT_SYMBOL_GPL(rt298_jack_resume);

static struct i2c_driver rt298_i2c_driver = { .driver = { diff --git a/sound/soc/codecs/rt298.h b/sound/soc/codecs/rt298.h index 3638f3d..2de342f 100644 --- a/sound/soc/codecs/rt298.h +++ b/sound/soc/codecs/rt298.h @@ -211,6 +211,8 @@ enum { };

int rt298_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack); +void rt298_jack_suspend(struct snd_soc_codec *codec); +void rt298_jack_resume(struct snd_soc_codec *codec);

#endif /* __RT298_H__ */