[ALSA] hda-codec - Allow opening SPDIF while analog dup mode
Allow opening the dedicated SPDIF stream while running on analog dup
mode. Then the SPDIF stream is once reset and assigned for the new
stream. It's useful for exclusive SPDIF output like AC3/DTS.
(In the former version, you had to close once the analog stream to
play the exclusive digital stream.)
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 59dcd97b..1fa93bd25 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1916,10 +1916,9 @@
int snd_hda_multi_out_dig_open(struct hda_codec *codec, struct hda_multi_out *mout)
{
mutex_lock(&codec->spdif_mutex);
- if (mout->dig_out_used) {
- mutex_unlock(&codec->spdif_mutex);
- return -EBUSY; /* already being used */
- }
+ if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
+ /* already opened as analog dup; reset it once */
+ snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
mout->dig_out_used = HDA_DIG_EXCLUSIVE;
mutex_unlock(&codec->spdif_mutex);
return 0;