diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index be53e96..9b1d433 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -44,6 +44,7 @@
 
 enum {
 	STAC_9205_REF,
+	STAC_M43xx,
 	STAC_9205_MODELS
 };
 
@@ -218,7 +219,6 @@
 	0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
 	0x0f, 0x14, 0x16, 0x17, 0x18,
 	0x21, 0x22,
-	
 };
 
 static int stac92xx_dmux_enum_info(struct snd_kcontrol *kcontrol,
@@ -773,7 +773,8 @@
 };
 
 static unsigned int *stac9205_brd_tbl[STAC_9205_MODELS] = {
-	ref9205_pin_configs,
+	[STAC_REF] = ref9205_pin_configs,
+	[STAC_M43xx] = NULL,
 };
 
 static const char *stac9205_models[STAC_9205_MODELS] = {
@@ -784,6 +785,10 @@
 	/* SigmaTel reference board */
 	SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x2668,
 		      "DFI LanParty", STAC_9205_REF),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x01f8,
+		      "Dell Precision", STAC_M43xx),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x01ff,
+		      "Dell Precision", STAC_M43xx),
 	{} /* terminator */
 };
 
@@ -813,48 +818,56 @@
 	return 0;
 }
 
+static void stac92xx_set_config_reg(struct hda_codec *codec,
+				    hda_nid_t pin_nid, unsigned int pin_config)
+{
+	int i;
+	snd_hda_codec_write(codec, pin_nid, 0,
+			    AC_VERB_SET_CONFIG_DEFAULT_BYTES_0,
+			    pin_config & 0x000000ff);
+	snd_hda_codec_write(codec, pin_nid, 0,
+			    AC_VERB_SET_CONFIG_DEFAULT_BYTES_1,
+			    (pin_config & 0x0000ff00) >> 8);
+	snd_hda_codec_write(codec, pin_nid, 0,
+			    AC_VERB_SET_CONFIG_DEFAULT_BYTES_2,
+			    (pin_config & 0x00ff0000) >> 16);
+	snd_hda_codec_write(codec, pin_nid, 0,
+			    AC_VERB_SET_CONFIG_DEFAULT_BYTES_3,
+			    pin_config >> 24);
+	i = snd_hda_codec_read(codec, pin_nid, 0,
+			       AC_VERB_GET_CONFIG_DEFAULT,
+			       0x00);	
+	snd_printdd(KERN_INFO "hda_codec: pin nid %2.2x pin config %8.8x\n",
+		    pin_nid, i);
+}
+
 static void stac92xx_set_config_regs(struct hda_codec *codec)
 {
 	int i;
 	struct sigmatel_spec *spec = codec->spec;
-	unsigned int pin_cfg;
 
-	if (! spec->pin_nids || ! spec->pin_configs)
-		return;
+ 	if (!spec->pin_configs)
+ 		return;
 
-	for (i = 0; i < spec->num_pins; i++) {
-		snd_hda_codec_write(codec, spec->pin_nids[i], 0,
-				    AC_VERB_SET_CONFIG_DEFAULT_BYTES_0,
-				    spec->pin_configs[i] & 0x000000ff);
-		snd_hda_codec_write(codec, spec->pin_nids[i], 0,
-				    AC_VERB_SET_CONFIG_DEFAULT_BYTES_1,
-				    (spec->pin_configs[i] & 0x0000ff00) >> 8);
-		snd_hda_codec_write(codec, spec->pin_nids[i], 0,
-				    AC_VERB_SET_CONFIG_DEFAULT_BYTES_2,
-				    (spec->pin_configs[i] & 0x00ff0000) >> 16);
-		snd_hda_codec_write(codec, spec->pin_nids[i], 0,
-				    AC_VERB_SET_CONFIG_DEFAULT_BYTES_3,
-				    spec->pin_configs[i] >> 24);
-		pin_cfg = snd_hda_codec_read(codec, spec->pin_nids[i], 0,
-					     AC_VERB_GET_CONFIG_DEFAULT,
-					     0x00);	
-		snd_printdd(KERN_INFO "hda_codec: pin nid %2.2x pin config %8.8x\n", spec->pin_nids[i], pin_cfg);
-	}
+	for (i = 0; i < spec->num_pins; i++)
+		stac92xx_set_config_reg(codec, spec->pin_nids[i],
+					spec->pin_configs[i]);
 }
 
-static void stac92xx_enable_eapd(struct hda_codec *codec)
+static void stac92xx_enable_gpio_mask(struct hda_codec *codec,
+				      int gpio_mask, int gpio_data)
 {
-	/* Configure GPIO0 as output */
+	/* Configure GPIOx as output */
 	snd_hda_codec_write(codec, codec->afg, 0,
-			    AC_VERB_SET_GPIO_DIRECTION, 0x00000001);
-	/* Configure GPIO0 as CMOS */
+			    AC_VERB_SET_GPIO_DIRECTION, gpio_mask);
+	/* Configure GPIOx as CMOS */
 	snd_hda_codec_write(codec, codec->afg, 0, 0x7e7, 0x00000000);
-	/* Assert GPIO0 high */
+	/* Assert GPIOx */
 	snd_hda_codec_write(codec, codec->afg, 0,
-			    AC_VERB_SET_GPIO_DATA, 0x00000001);
-	/* Enable GPIO0 */
+			    AC_VERB_SET_GPIO_DATA, gpio_data);
+	/* Enable GPIOx */
 	snd_hda_codec_write(codec, codec->afg, 0,
-			    AC_VERB_SET_GPIO_MASK, 0x00000001);
+			    AC_VERB_SET_GPIO_MASK, gpio_mask);
 }
 
 /*
@@ -2233,7 +2246,8 @@
 	}
 
 	spec->multiout.dac_nids = spec->dac_nids;
-	stac92xx_enable_eapd(codec);
+	/* GPIO0 High = Enable EAPD */
+	stac92xx_enable_gpio_mask(codec, 0x00000001, 0x00000001);
 	
 	err = stac92xx_parse_auto_config(codec, 0x1e, 0x20);
 	if (!err) {
@@ -2265,7 +2279,7 @@
 static int patch_stac9205(struct hda_codec *codec)
 {
 	struct sigmatel_spec *spec;
-	int err;
+	int err, gpio_mask, gpio_data;
 
 	spec  = kzalloc(sizeof(*spec), GFP_KERNEL);
 	if (spec == NULL)
@@ -2302,8 +2316,21 @@
 	spec->mixer = stac9205_mixer;
 
 	spec->multiout.dac_nids = spec->dac_nids;
-	stac92xx_enable_eapd(codec);
+	
+	if (spec->board_config == STAC_M43xx) {
+		/* Enable SPDIF in/out */
+		stac92xx_set_config_reg(codec, 0x1f, 0x01441030);
+		stac92xx_set_config_reg(codec, 0x20, 0x1c410030);
 
+		gpio_mask = 0x00000007; /* GPIO0-2 */
+		/* GPIO0 High = EAPD, GPIO1 Low = DRM,
+		 * GPIO2 High = Headphone Mute
+		 */
+		gpio_data = 0x00000005;
+	} else
+		gpio_mask = gpio_data = 0x00000001; /* GPIO0 High = EAPD */
+
+	stac92xx_enable_gpio_mask(codec, gpio_mask, gpio_data);
 	err = stac92xx_parse_auto_config(codec, 0x1f, 0x20);
 	if (!err) {
 		if (spec->board_config < 0) {