[ALSA] hda-codec - Fix SPDIF output

Fix SPDIF output (at least on Realtek codecs).  The DIGI_CONVERT verbs
have to be reset before the PCM stream is set up.  Otherwise the digital
setup is screwed up.
Also, check the AMP capability before setting AMP of the digital out
widget.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 5 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index 39718d6cdadd..3505a670995f 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -148,6 +148,11 @@ struct hda_multi_out {
 
 int snd_hda_multi_out_dig_open(struct hda_codec *codec, struct hda_multi_out *mout);
 int snd_hda_multi_out_dig_close(struct hda_codec *codec, struct hda_multi_out *mout);
+int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
+                                  struct hda_multi_out *mout,
+                                  unsigned int stream_tag,
+                                  unsigned int format,
+                                  struct snd_pcm_substream *substream);
 int snd_hda_multi_out_analog_open(struct hda_codec *codec, struct hda_multi_out *mout,
                                   struct snd_pcm_substream *substream);
 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_out *mout,