ALSA: hda - Add snd_hda_multi_out_dig_cleanup()

Added the helper function snd_hda_multi_out_dig_cleanup() to clean up
the digital outputs with multi setup.  This call is needed in cases
the codec supports multiple digital outputs as slaves.  Otherwise the
slave widgets aren't properly cleaned up.

For a single digital output (e.g. in patch_conexant.c), this call isn't
needed.

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

1 files changed, 10 insertions, 1 deletions

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index aa814a3c2d8c..8027edf3c8f2 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -2442,6 +2442,14 @@ static int stac92xx_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
                                              stream_tag, format, substream);
 }
 
+static int stac92xx_dig_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
+                                        struct hda_codec *codec,
+                                        struct snd_pcm_substream *substream)
+{
+        struct sigmatel_spec *spec = codec->spec;
+        return snd_hda_multi_out_dig_cleanup(codec, &spec->multiout);
+}
+
 
 /*
  * Analog capture callbacks
@@ -2486,7 +2494,8 @@ static struct hda_pcm_stream stac92xx_pcm_digital_playback = {
         .ops = {
                 .open = stac92xx_dig_playback_pcm_open,
                 .close = stac92xx_dig_playback_pcm_close,
-                .prepare = stac92xx_dig_playback_pcm_prepare
+                .prepare = stac92xx_dig_playback_pcm_prepare,
+                .cleanup = stac92xx_dig_playback_pcm_cleanup
         },
 };