ALSA: hda - Remember connection lists

The connection lists are static and we can reuse the previous results
instead of querying via verb at each time.  This will reduce the I/O
in the runtime especially for some codec auto-parsers.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index e46d5420a9f2..7d57a66c1b31 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -825,6 +825,8 @@ struct hda_codec {
         struct hda_cache_rec amp_cache; /* cache for amp access */
         struct hda_cache_rec cmd_cache; /* cache for other commands */
 
+        struct snd_array conn_lists;    /* connection-list array */
+
         struct mutex spdif_mutex;
         struct mutex control_mutex;
         unsigned int spdif_status;      /* IEC958 status bits */