ALSA: hda - Fix silent output on MacBook Air 1,1

Similarly to other Apple products, MBA 1,1 needs a specific quirk.
Pin 0x18 must be set to VREF_50 to have sound output.  This was no
longer done since commit 1a97b7f, resulting in a mute built-in speaker.

This patch corrects the regression by creating a fixup for the MBA 1,1.

Fixes: 1a97b7f22774 ("ALSA: hda/realtek - Remove the last static quirks for ALC882")
Cc: <stable@vger.kernel.org> [v3.4+]
Tested-by: Adrien Vergé <adrienverge@gmail.com>
Signed-off-by: Adrien Vergé <adrienverge@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index c435ae0a19a6b295435c973aacfa3e511a9376d9..d723c1fdd5f342b381a4952bc2214f775aadbdd7 100644 (file)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1819,6 +1819,7 @@ enum {
        ALC889_FIXUP_DAC_ROUTE,
        ALC889_FIXUP_MBP_VREF,
        ALC889_FIXUP_IMAC91_VREF,
+       ALC889_FIXUP_MBA11_VREF,
        ALC889_FIXUP_MBA21_VREF,
        ALC882_FIXUP_INV_DMIC,
        ALC882_FIXUP_NO_PRIMARY_HP,
@@ -1949,6 +1950,16 @@ static void alc889_fixup_imac91_vref(struct hda_codec *codec,
                alc889_fixup_mac_pins(codec, nids, ARRAY_SIZE(nids));
 }
 
+/* Set VREF on speaker pins on mba11 */
+static void alc889_fixup_mba11_vref(struct hda_codec *codec,
+                                   const struct hda_fixup *fix, int action)
+{
+       static hda_nid_t nids[1] = { 0x18 };
+
+       if (action == HDA_FIXUP_ACT_INIT)
+               alc889_fixup_mac_pins(codec, nids, ARRAY_SIZE(nids));
+}
+
 /* Set VREF on speaker pins on mba21 */
 static void alc889_fixup_mba21_vref(struct hda_codec *codec,
                                    const struct hda_fixup *fix, int action)
@@ -2167,6 +2178,12 @@ static const struct hda_fixup alc882_fixups[] = {
                .chained = true,
                .chain_id = ALC882_FIXUP_GPIO1,
        },
+       [ALC889_FIXUP_MBA11_VREF] = {
+               .type = HDA_FIXUP_FUNC,
+               .v.func = alc889_fixup_mba11_vref,
+               .chained = true,
+               .chain_id = ALC889_FIXUP_MBP_VREF,
+       },
        [ALC889_FIXUP_MBA21_VREF] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = alc889_fixup_mba21_vref,
@@ -2242,7 +2259,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
        SND_PCI_QUIRK(0x106b, 0x2c00, "MacbookPro rev3", ALC889_FIXUP_MBP_VREF),
        SND_PCI_QUIRK(0x106b, 0x3000, "iMac", ALC889_FIXUP_MBP_VREF),
        SND_PCI_QUIRK(0x106b, 0x3200, "iMac 7,1 Aluminum", ALC882_FIXUP_EAPD),
-       SND_PCI_QUIRK(0x106b, 0x3400, "MacBookAir 1,1", ALC889_FIXUP_MBP_VREF),
+       SND_PCI_QUIRK(0x106b, 0x3400, "MacBookAir 1,1", ALC889_FIXUP_MBA11_VREF),
        SND_PCI_QUIRK(0x106b, 0x3500, "MacBookAir 2,1", ALC889_FIXUP_MBA21_VREF),
        SND_PCI_QUIRK(0x106b, 0x3600, "Macbook 3,1", ALC889_FIXUP_MBP_VREF),
        SND_PCI_QUIRK(0x106b, 0x3800, "MacbookPro 4,1", ALC889_FIXUP_MBP_VREF),