ALSA: hda - Use regmap for command verb caches, too

Like the previous patches, this patch converts also to the regmap, at
this time, the cached verb writes are the target.  But this conversion
needs a bit more caution than before.

- In the old code, we just record any verbs as is, and restore them at
  resume.  For the regmap scheme, this doesn't work, since a few verbs
  like AMP or DIGI_CONVERT are asymmetrical.  Such verbs are converted
  either to the dedicated function (snd_hda_regmap_xxx_amp()) or
  changed to the unified verb.

- Some verbs have to be declared as vendor-specific ones before
  accessing via regmap.

Also, the minor optimization with codec->cached_write flag is dropped
in a few places, as this would confuse the operation.  Further
optimizations will be brought in the later patches, if any.

This conversion ends up with a drop of significant amount of codes,
mostly the helper codes that are no longer used.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index b314551..43c99ce 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -1050,12 +1050,9 @@
 	{}
 };
 
-static const struct hda_verb stac92hd71bxx_unmute_core_init[] = {
+static const hda_nid_t stac92hd71bxx_unmute_nids[] = {
 	/* unmute right and left channels for nodes 0x0f, 0xa, 0x0d */
-	{ 0x0f, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
-	{ 0x0a, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
-	{ 0x0d, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
-	{}
+	0x0f, 0x0a, 0x0d, 0
 };
 
 static const struct hda_verb stac925x_core_init[] = {
@@ -4269,6 +4266,10 @@
 
 	if (spec->aloopback_ctl &&
 	    snd_hda_get_bool_hint(codec, "loopback") == 1) {
+		unsigned int wr_verb =
+			spec->aloopback_ctl->private_value >> 16;
+		if (snd_hdac_regmap_add_vendor_verb(&codec->core, wr_verb))
+			return -ENOMEM;
 		if (!snd_hda_gen_add_kctl(&spec->gen, NULL, spec->aloopback_ctl))
 			return -ENOMEM;
 	}
@@ -4688,7 +4689,7 @@
 static int patch_stac92hd71bxx(struct hda_codec *codec)
 {
 	struct sigmatel_spec *spec;
-	const struct hda_verb *unmute_init = stac92hd71bxx_unmute_core_init;
+	const hda_nid_t *unmute_nids = stac92hd71bxx_unmute_nids;
 	int err;
 
 	err = alloc_stac_spec(codec);
@@ -4713,7 +4714,7 @@
 	switch (codec->core.vendor_id) {
 	case 0x111d76b6: /* 4 Port without Analog Mixer */
 	case 0x111d76b7:
-		unmute_init++;
+		unmute_nids++;
 		break;
 	case 0x111d7608: /* 5 Port with Analog Mixer */
 		if ((codec->core.revision_id & 0xf) == 0 ||
@@ -4721,7 +4722,7 @@
 			spec->stream_delay = 40; /* 40 milliseconds */
 
 		/* disable VSW */
-		unmute_init++;
+		unmute_nids++;
 		snd_hda_codec_set_pincfg(codec, 0x0f, 0x40f000f0);
 		snd_hda_codec_set_pincfg(codec, 0x19, 0x40f000f3);
 		break;
@@ -4735,8 +4736,12 @@
 	if (get_wcaps_type(get_wcaps(codec, 0x28)) == AC_WID_VOL_KNB)
 		snd_hda_add_verbs(codec, stac92hd71bxx_core_init);
 
-	if (get_wcaps(codec, 0xa) & AC_WCAP_IN_AMP)
-		snd_hda_sequence_write_cache(codec, unmute_init);
+	if (get_wcaps(codec, 0xa) & AC_WCAP_IN_AMP) {
+		const hda_nid_t *p;
+		for (p = unmute_nids; *p; p++)
+			snd_hda_codec_amp_init_stereo(codec, *p, HDA_INPUT, 0,
+						      0xff, 0x00);
+	}
 
 	spec->aloopback_ctl = &stac92hd71bxx_loopback;
 	spec->aloopback_mask = 0x50;