ALSA: hda: Set Front Mic to input vref 50% for Lenovo 3000 Y410

commit e2595322a3a353a59cecd7f57e7aa421ecb02d12 upstream.

BugLink: https://bugs.launchpad.net/bugs/479373
The OR has verified with hda-verb that the internal microphone needs
VREF50 set for audible capture.

Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 936ae8069d1b366415d28a226720ceb7b30d6b00..3d1ad71388084b7335706ca52c5a1c90e0ab1a0d 100644 (file)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -10621,6 +10621,13 @@ static struct hda_verb alc262_lenovo_3000_unsol_verbs[] = {
        {}
 };
 
+static struct hda_verb alc262_lenovo_3000_init_verbs[] = {
+       /* Front Mic pin: input vref at 50% */
+       {0x19, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF50},
+       {0x19, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
+       {}
+};
+
 static struct hda_input_mux alc262_fujitsu_capture_source = {
        .num_items = 3,
        .items = {
@@ -11688,7 +11695,8 @@ static struct alc_config_preset alc262_presets[] = {
        [ALC262_LENOVO_3000] = {
                .mixers = { alc262_lenovo_3000_mixer },
                .init_verbs = { alc262_init_verbs, alc262_EAPD_verbs,
-                               alc262_lenovo_3000_unsol_verbs },
+                               alc262_lenovo_3000_unsol_verbs,
+                               alc262_lenovo_3000_init_verbs },
                .num_dacs = ARRAY_SIZE(alc262_dac_nids),
                .dac_nids = alc262_dac_nids,
                .hp_nid = 0x03,