ALSA: hda - Fix digital mic on dell-m4-1 and dell-m4-3

Fix num_dmuxes initialization for dell-m4-1 and dell-m4-3 models
of IDT 92HD71bxx codec, which was wrongly set to zero.

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 8027edf3c8f2ab2d13848b45ab3a66495ceb2e81..3bc427645da8ef1411400990b67c9fc181e4cece 100644 (file)
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -4989,7 +4989,7 @@ again:
        case STAC_DELL_M4_3:
                spec->num_dmics = 1;
                spec->num_smuxes = 0;
-               spec->num_dmuxes = 0;
+               spec->num_dmuxes = 1;
                break;
        default:
                spec->num_dmics = STAC92HD71BXX_NUM_DMICS;