2 files changed, 13 insertions, 7 deletions

diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt
index 64eb1100eec1..0f5d26bea80f 100644
--- a/Documentation/sound/alsa/HD-Audio-Models.txt
+++ b/Documentation/sound/alsa/HD-Audio-Models.txt
@@ -349,6 +349,7 @@ STAC92HD73*
 STAC92HD83*
 ===========
   ref           Reference board
+  mic-ref       Reference board with power managment for ports
 
 STAC9872
 ========
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index c553fdb2b149..3dd4eee70b7c 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -81,6 +81,7 @@ enum {
 
 enum {
         STAC_92HD83XXX_REF,
+        STAC_92HD83XXX_PWR_REF,
         STAC_92HD83XXX_MODELS
 };
 
@@ -1734,10 +1735,12 @@ static unsigned int ref92hd83xxx_pin_configs[14] = {
 
 static unsigned int *stac92hd83xxx_brd_tbl[STAC_92HD83XXX_MODELS] = {
         [STAC_92HD83XXX_REF] = ref92hd83xxx_pin_configs,
+        [STAC_92HD83XXX_PWR_REF] = ref92hd83xxx_pin_configs,
 };
 
 static const char *stac92hd83xxx_models[STAC_92HD83XXX_MODELS] = {
         [STAC_92HD83XXX_REF] = "ref",
+        [STAC_92HD83XXX_PWR_REF] = "mic-ref",
 };
 
 static struct snd_pci_quirk stac92hd83xxx_cfg_tbl[] = {
@@ -4783,13 +4786,6 @@ static int patch_stac92hd83xxx(struct hda_codec *codec)
                 AC_VERB_SET_CONNECT_SEL, num_dacs);
 
         spec->init = stac92hd83xxx_core_init;
-        switch (codec->vendor_id) {
-        case 0x111d7605:
-                break;
-        default:
-                spec->num_pwrs--;
-        }
-
         spec->mixer = stac92hd83xxx_mixer;
         spec->num_pins = ARRAY_SIZE(stac92hd83xxx_pin_nids);
         spec->num_dmuxes = ARRAY_SIZE(stac92hd83xxx_dmux_nids);
@@ -4815,6 +4811,15 @@ again:
                 return err;
         }
 
+        switch (codec->vendor_id) {
+        case 0x111d7604:
+        case 0x111d7605:
+                if (spec->board_config == STAC_92HD83XXX_PWR_REF)
+                        break;
+                spec->num_pwrs = 0;
+                break;
+        }
+
         err = stac92xx_parse_auto_config(codec, 0x1d, 0);
         if (!err) {
                 if (spec->board_config < 0) {