ALSA: hda: fixup headset for ASUS GX502 laptop

BugLink: https://bugs.launchpad.net/bugs/1896828
commit c3cdf189276c2a63da62ee250615bd55e3fb680d upstream.

The GX502 requires a few steps to enable the headset i/o: pincfg,
verbs to enable and unmute the amp used for headpone out, and
a jacksense callback to toggle output via internal or jack using
a verb.

Signed-off-by: Luke D Jones <luke@ljones.dev>
Cc: <stable@vger.kernel.org>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=208005
Link: https://lore.kernel.org/r/20200907081959.56186-1-luke@ljones.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: William Breathitt Gray <william.gray@canonical.com>

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index a7a5872b235dbc2e07418cb2dfbf36f82e13ae4e..33cd6cc44c38e3d9cf5eb02252364fc36d9d7984 100644 (file)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6009,6 +6009,40 @@ static void alc_fixup_disable_mic_vref(struct hda_codec *codec,
                snd_hda_codec_set_pin_target(codec, 0x19, PIN_VREFHIZ);
 }
 
+
+static void alc294_gx502_toggle_output(struct hda_codec *codec,
+                                       struct hda_jack_callback *cb)
+{
+       /* The Windows driver sets the codec up in a very different way where
+        * it appears to leave 0x10 = 0x8a20 set. For Linux we need to toggle it
+        */
+       if (snd_hda_jack_detect_state(codec, 0x21) == HDA_JACK_PRESENT)
+               alc_write_coef_idx(codec, 0x10, 0x8a20);
+       else
+               alc_write_coef_idx(codec, 0x10, 0x0a20);
+}
+
+static void alc294_fixup_gx502_hp(struct hda_codec *codec,
+                                       const struct hda_fixup *fix, int action)
+{
+       /* Pin 0x21: headphones/headset mic */
+       if (!is_jack_detectable(codec, 0x21))
+               return;
+
+       switch (action) {
+       case HDA_FIXUP_ACT_PRE_PROBE:
+               snd_hda_jack_detect_enable_callback(codec, 0x21,
+                               alc294_gx502_toggle_output);
+               break;
+       case HDA_FIXUP_ACT_INIT:
+               /* Make sure to start in a correct state, i.e. if
+                * headphones have been plugged in before powering up the system
+                */
+               alc294_gx502_toggle_output(codec, NULL);
+               break;
+       }
+}
+
 static void  alc285_fixup_hp_gpio_amp_init(struct hda_codec *codec,
                                const struct hda_fixup *fix, int action)
 {
@@ -6189,6 +6223,9 @@ enum {
        ALC285_FIXUP_THINKPAD_HEADSET_JACK,
        ALC294_FIXUP_ASUS_HPE,
        ALC294_FIXUP_ASUS_COEF_1B,
+       ALC294_FIXUP_ASUS_GX502_HP,
+       ALC294_FIXUP_ASUS_GX502_PINS,
+       ALC294_FIXUP_ASUS_GX502_VERBS,
        ALC285_FIXUP_HP_GPIO_LED,
        ALC285_FIXUP_HP_MUTE_LED,
        ALC236_FIXUP_HP_MUTE_LED,
@@ -7354,6 +7391,33 @@ static const struct hda_fixup alc269_fixups[] = {
                .chained = true,
                .chain_id = ALC294_FIXUP_ASUS_HEADSET_MIC
        },
+       [ALC294_FIXUP_ASUS_GX502_PINS] = {
+               .type = HDA_FIXUP_PINS,
+               .v.pins = (const struct hda_pintbl[]) {
+                       { 0x19, 0x03a11050 }, /* front HP mic */
+                       { 0x1a, 0x01a11830 }, /* rear external mic */
+                       { 0x21, 0x03211020 }, /* front HP out */
+                       { }
+               },
+               .chained = true,
+               .chain_id = ALC294_FIXUP_ASUS_GX502_VERBS
+       },
+       [ALC294_FIXUP_ASUS_GX502_VERBS] = {
+               .type = HDA_FIXUP_VERBS,
+               .v.verbs = (const struct hda_verb[]) {
+                       /* set 0x15 to HP-OUT ctrl */
+                       { 0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, 0xc0 },
+                       /* unmute the 0x15 amp */
+                       { 0x15, AC_VERB_SET_AMP_GAIN_MUTE, 0xb000 },
+                       { }
+               },
+               .chained = true,
+               .chain_id = ALC294_FIXUP_ASUS_GX502_HP
+       },
+       [ALC294_FIXUP_ASUS_GX502_HP] = {
+               .type = HDA_FIXUP_FUNC,
+               .v.func = alc294_fixup_gx502_hp,
+       },
        [ALC294_FIXUP_ASUS_COEF_1B] = {
                .type = HDA_FIXUP_VERBS,
                .v.verbs = (const struct hda_verb[]) {
@@ -7727,6 +7791,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
        SND_PCI_QUIRK(0x1043, 0x1ccd, "ASUS X555UB", ALC256_FIXUP_ASUS_MIC),
        SND_PCI_QUIRK(0x1043, 0x1e11, "ASUS Zephyrus G15", ALC289_FIXUP_ASUS_GA502),
        SND_PCI_QUIRK(0x1043, 0x1f11, "ASUS Zephyrus G14", ALC289_FIXUP_ASUS_GA401),
+       SND_PCI_QUIRK(0x1043, 0x1881, "ASUS Zephyrus S/M", ALC294_FIXUP_ASUS_GX502_PINS),
        SND_PCI_QUIRK(0x1043, 0x3030, "ASUS ZN270IE", ALC256_FIXUP_ASUS_AIO_GPIO2),
        SND_PCI_QUIRK(0x1043, 0x831a, "ASUS P901", ALC269_FIXUP_STEREO_DMIC),
        SND_PCI_QUIRK(0x1043, 0x834a, "ASUS S101", ALC269_FIXUP_STEREO_DMIC),