ALSA: hda - Avoid unnecessary verbs write in snd_hda_activate_path()

... by using snd_Hda_codec_update_cache() instead of *_write_cache().
Since all path elements should have been updated by this function,
we are safe to assume that the cache contents are consistent.

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

diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 8321a97..437ef13 100644 (file)
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -762,7 +762,7 @@ void snd_hda_activate_path(struct hda_codec *codec, struct nid_path *path,
                                                    AC_PWRST_D0);
                }
                if (enable && path->multi[i])
-                       snd_hda_codec_write_cache(codec, nid, 0,
+                       snd_hda_codec_update_cache(codec, nid, 0,
                                            AC_VERB_SET_CONNECT_SEL,
                                            path->idx[i]);
                if (has_amp_in(codec, path, i))