ALSA: hda - Fix power-saving during playing beep sound

While playing the digital beep tone, the codec shouldn't be turned
off.  This patch adds proper snd_hda_power_up()/down() calls at each
time when the beep is played or off.

Also, this fixes automatically an unnecessary codec power-up at
detaching the beep device when the beep isn't being played.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_beep.h b/sound/pci/hda/hda_beep.h
index 4dc6933bc655..cb88464676b6 100644
--- a/sound/pci/hda/hda_beep.h
+++ b/sound/pci/hda/hda_beep.h
@@ -36,6 +36,7 @@ struct hda_beep {
         hda_nid_t nid;
         unsigned int enabled:1;
         unsigned int linear_tone:1;     /* linear tone for IDT/STAC codec */
+        unsigned int playing:1;
         struct work_struct beep_work; /* scheduled task for beep event */
         struct mutex mutex;
 };