snd_hda_codec_set_power_save
void snd_hda_codec_set_power_save(struct hda_codec *codec, int delay);
EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_save);
snd_hda_codec_set_power_save(c, delay);
snd_hda_codec_set_power_save(codec, 2000);