ALSA: hda - fix digital mic selection in mixer on 92HD8X codecs

When the mux for digital mic is different from the mux for other mics,
the current auto-parser doesn't handle them in a right way but provides
only one mic.  This patch fixes the issue.

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

1 files changed, 8 insertions, 3 deletions

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 8fe5608c5f29..32f744d47da7 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -748,7 +748,7 @@ static int stac92xx_mux_enum_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e
         struct sigmatel_spec *spec = codec->spec;
         unsigned int adc_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
         const struct hda_input_mux *imux = spec->input_mux;
-        unsigned int idx, prev_idx;
+        unsigned int idx, prev_idx, didx;
 
         idx = ucontrol->value.enumerated.item[0];
         if (idx >= imux->num_items)
@@ -760,7 +760,8 @@ static int stac92xx_mux_enum_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e
                 snd_hda_codec_write_cache(codec, spec->mux_nids[adc_idx], 0,
                                           AC_VERB_SET_CONNECT_SEL,
                                           imux->items[idx].index);
-                if (prev_idx >= spec->num_analog_muxes) {
+                if (prev_idx >= spec->num_analog_muxes &&
+                    spec->mux_nids[adc_idx] != spec->dmux_nids[adc_idx]) {
                         imux = spec->dinput_mux;
                         /* 0 = analog */
                         snd_hda_codec_write_cache(codec,
@@ -770,9 +771,13 @@ static int stac92xx_mux_enum_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e
                 }
         } else {
                 imux = spec->dinput_mux;
+                /* first dimux item is hardcoded to select analog imux,
+                 * so lets skip it
+                 */
+                didx = idx - spec->num_analog_muxes + 1;
                 snd_hda_codec_write_cache(codec, spec->dmux_nids[adc_idx], 0,
                                           AC_VERB_SET_CONNECT_SEL,
-                                          imux->items[idx - 1].index);
+                                          imux->items[didx].index);
         }
         spec->cur_mux[adc_idx] = idx;
         return 1;