ALSA: hda - Don't create analog mixer for IDT92HD71bxx

The analog mixer unit on IDT 92HD71Bxx codecs is almost useless
since we use only the direct connections from DAC to pin.

Remove the controls to avoid unneeded confusion as default now.
This can be still back via "analog_mixer = 1" hint.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 4 insertions, 2 deletions

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index be6cf2cfb192..66b1f3cfc871 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -5376,7 +5376,8 @@ again:
 
                 /* no output amps */
                 spec->num_pwrs = 0;
-                spec->mixer = stac92hd71bxx_analog_mixer;
+                if (snd_hda_get_bool_hint(codec, "analog_mixer") == 1)
+                        spec->mixer = stac92hd71bxx_analog_mixer;
 
                 /* disable VSW */
                 spec->init = &stac92hd71bxx_analog_core_init[HD_DISABLE_PORTF];
@@ -5403,7 +5404,8 @@ again:
         default:
                 memcpy(&spec->private_dimux, &stac92hd71bxx_dmux_amixer,
                        sizeof(stac92hd71bxx_dmux_amixer));
-                spec->mixer = stac92hd71bxx_analog_mixer;
+                if (snd_hda_get_bool_hint(codec, "analog_mixer") == 1)
+                        spec->mixer = stac92hd71bxx_analog_mixer;
                 spec->init = stac92hd71bxx_analog_core_init;
                 codec->slave_dig_outs = stac92hd71bxx_slave_dig_outs;
                 spec->num_dmics = stac92hd71bxx_connected_ports(codec,