1 files changed, 26 insertions, 1 deletions

diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 85e8618e8497..f795ee588cc7 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -3734,9 +3734,30 @@ static struct snd_kcontrol_new ad1884a_laptop_mixers[] = {
         { } /* end */
 };
 
+static int ad1884a_mobile_master_sw_put(struct snd_kcontrol *kcontrol,
+                                        struct snd_ctl_elem_value *ucontrol)
+{
+        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+        int ret = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
+        int mute = (!ucontrol->value.integer.value[0] &&
+                    !ucontrol->value.integer.value[1]);
+        /* toggle GPIO1 according to the mute state */
+        snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_DATA,
+                            mute ? 0x02 : 0x0);
+        return ret;
+}
+
 static struct snd_kcontrol_new ad1884a_mobile_mixers[] = {
         HDA_CODEC_VOLUME("Master Playback Volume", 0x21, 0x0, HDA_OUTPUT),
-        HDA_CODEC_MUTE("Master Playback Switch", 0x21, 0x0, HDA_OUTPUT),
+        /*HDA_CODEC_MUTE("Master Playback Switch", 0x21, 0x0, HDA_OUTPUT),*/
+        {
+                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+                .name = "Master Playback Switch",
+                .info = snd_hda_mixer_amp_switch_info,
+                .get = snd_hda_mixer_amp_switch_get,
+                .put = ad1884a_mobile_master_sw_put,
+                .private_value = HDA_COMPOSE_AMP_VAL(0x21, 3, 0, HDA_OUTPUT),
+        },
         HDA_CODEC_VOLUME("PCM Playback Volume", 0x20, 0x5, HDA_INPUT),
         HDA_CODEC_MUTE("PCM Playback Switch", 0x20, 0x5, HDA_INPUT),
         HDA_CODEC_VOLUME("Mic Capture Volume", 0x14, 0x0, HDA_INPUT),
@@ -3857,6 +3878,10 @@ static struct hda_verb ad1884a_mobile_verbs[] = {
         /* unsolicited event for pin-sense */
         {0x11, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | AD1884A_HP_EVENT},
         {0x14, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | AD1884A_MIC_EVENT},
+        /* allow to touch GPIO1 (for mute control) */
+        {0x01, AC_VERB_SET_GPIO_MASK, 0x02},
+        {0x01, AC_VERB_SET_GPIO_DIRECTION, 0x02},
+        {0x01, AC_VERB_SET_GPIO_DATA, 0x02}, /* first muted */
         { } /* end */
 };