[ALSA] hda-codec - alc268 input_mux should be a selector instead of mixer

According to the [0003659], the node 0x23,0x24 is a selector.
I checked the alc268 spec on the REALTEK website and it showed that they
were selectors indeed.
However, current code implement the alc268 input_mux in a mixer way.
Signed-off-by: NJiang Zhe <zhe.jiang@intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>

sound/pci/hda/patch_realtek.c

@@ -9196,19 +9196,13 @@ static struct hda_verb alc268_base_init_verbs[] = {
 	{0x1c, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
 	{0x1d, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x00 << 8))},
 
-	/* FIXME: use matrix-type input source selection */
-	/* Mixer elements: 0x18, 19, 1a, 1c, 14, 15, 0b */
-	/* Input mixer1: unmute Mic, F-Mic, Line, CD inputs */
-	/* Input mixer2 */
-	{0x23, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x00 << 8))},
-	{0x23, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x01 << 8))},
-	{0x23, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x02 << 8))},
-	{0x23, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x03 << 8))},
+	/* Unmute Selector 23h,24h and set the default input to mic-in */
+	
+	{0x23, AC_VERB_SET_CONNECT_SEL, 0x00},
+	{0x23, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
+	{0x24, AC_VERB_SET_CONNECT_SEL, 0x00},
+	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
 
-	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x00 << 8))},
-	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x01 << 8))},
-	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x02 << 8))},
-	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, (0x7000 | (0x03 << 8))},
 	{ }
 };
 
@@ -9253,29 +9247,14 @@ static int alc268_mux_enum_put(struct snd_kcontrol *kcontrol,
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	struct alc_spec *spec = codec->spec;
-	const struct hda_input_mux *imux = spec->input_mux;
+
 	unsigned int adc_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
 	static hda_nid_t capture_mixers[3] = { 0x23, 0x24 };
 	hda_nid_t nid = capture_mixers[adc_idx];
-	unsigned int *cur_val = &spec->cur_mux[adc_idx];
-	unsigned int i, idx;
 
-	idx = ucontrol->value.enumerated.item[0];
-	if (idx >= imux->num_items)
-		idx = imux->num_items - 1;
-	if (*cur_val == idx)
-		return 0;
-	for (i = 0; i < imux->num_items; i++) {
-		unsigned int v = (i == idx) ? 0 : HDA_AMP_MUTE;
-		snd_hda_codec_amp_stereo(codec, nid, HDA_INPUT,
-					 imux->items[i].index,
-					 HDA_AMP_MUTE, v);
-                snd_hda_codec_write_cache(codec, nid, 0,
-					  AC_VERB_SET_CONNECT_SEL,
-					  idx );
-	}
-	*cur_val = idx;
-	return 1;
+	return snd_hda_input_mux_put(codec, spec->input_mux, ucontrol,
+				     nid,
+				     &spec->cur_mux[adc_idx]);
 }
 
 static struct snd_kcontrol_new alc268_capture_alt_mixer[] = {