[ALSA] hda-codec - optimize resume using caches

So far, the driver looked the table of snd_kcontrol_new used for creating
mixer elements and forces to call each of its put callbacks in PM resume
code.  This is too ugly and hackish.
Now, the resume is simplified using the codec amp and command register
caches.  The driver simply restores the values that have been written
in the cache table.  With this simplification, most codec support codes
don't require any special resume callback.

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

1 files changed, 0 insertions, 24 deletions

diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index ba32d1e..6c734f0 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -543,27 +543,6 @@ static int via_init(struct hda_codec *codec)
  	return 0;
 }
 
-#ifdef CONFIG_PM
-/*
- * resume
- */
-static int via_resume(struct hda_codec *codec)
-{
-	struct via_spec *spec = codec->spec;
-	int i;
-
-	via_init(codec);
-	for (i = 0; i < spec->num_mixers; i++)
-		snd_hda_resume_ctls(codec, spec->mixers[i]);
-	if (spec->multiout.dig_out_nid)
-		snd_hda_resume_spdif_out(codec);
-	if (spec->dig_in_nid)
-		snd_hda_resume_spdif_in(codec);
-
-	return 0;
-}
-#endif
-
 /*
  */
 static struct hda_codec_ops via_patch_ops = {
@@ -571,9 +550,6 @@ static struct hda_codec_ops via_patch_ops = {
 	.build_pcms = via_build_pcms,
 	.init = via_init,
 	.free = via_free,
-#ifdef CONFIG_PM
-	.resume = via_resume,
-#endif
 };
 
 /* fill in the dac_nids table from the parsed pin configuration */