ALSA: HDA: Enable digital mic on IDT 92HD87B

BugLink: http://launchpad.net/bugs/673075

According to the datasheet of 92HD87B, there is a digital mic
at nid 0x11, so enable it in order to be able to use the mic.

Cc: stable@kernel.org
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 12 insertions, 2 deletions

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 93fa59cc60ef..cfd73afad882 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -389,6 +389,11 @@ static hda_nid_t stac92hd83xxx_dmic_nids[STAC92HD83XXX_NUM_DMICS + 1] = {
         0x11, 0x20, 0
 };
 
+#define STAC92HD87B_NUM_DMICS    1
+static hda_nid_t stac92hd87b_dmic_nids[STAC92HD87B_NUM_DMICS + 1] = {
+        0x11, 0
+};
+
 #define STAC92HD83XXX_NUM_CAPS  2
 static unsigned long stac92hd83xxx_capvols[] = {
         HDA_COMPOSE_AMP_VAL(0x17, 3, 0, HDA_OUTPUT),
@@ -5452,12 +5457,17 @@ again:
                                 stac92hd83xxx_brd_tbl[spec->board_config]);
 
         switch (codec->vendor_id) {
+        case 0x111d76d1:
+        case 0x111d76d9:
+                spec->dmic_nids = stac92hd87b_dmic_nids;
+                spec->num_dmics = stac92xx_connected_ports(codec,
+                                stac92hd87b_dmic_nids,
+                                STAC92HD87B_NUM_DMICS);
+                /* Fall through */
         case 0x111d7666:
         case 0x111d7667:
         case 0x111d7668:
         case 0x111d7669:
-        case 0x111d76d1:
-        case 0x111d76d9:
                 spec->num_pins = ARRAY_SIZE(stac92hd88xxx_pin_nids);
                 spec->pin_nids = stac92hd88xxx_pin_nids;
                 spec->mono_nid = 0;