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_analog.c b/sound/pci/hda/patch_analog.c
index 7006d62ca6c..e48612323aa 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -275,6 +275,14 @@ static int ad198x_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
                                              format, substream);
 }
 
+static int ad198x_dig_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
+                                           struct hda_codec *codec,
+                                           struct snd_pcm_substream *substream)
+{
+        struct ad198x_spec *spec = codec->spec;
+        return snd_hda_multi_out_dig_cleanup(codec, &spec->multiout);
+}
+
 /*
  * Analog capture
  */
@@ -333,7 +341,8 @@ static struct hda_pcm_stream ad198x_pcm_digital_playback = {
         .ops = {
                 .open = ad198x_dig_playback_pcm_open,
                 .close = ad198x_dig_playback_pcm_close,
-                .prepare = ad198x_dig_playback_pcm_prepare
+                .prepare = ad198x_dig_playback_pcm_prepare,
+                .cleanup = ad198x_dig_playback_pcm_cleanup
         },
 };