diff -r b201c63fc4b3 pci/hda/patch_realtek.c
--- a/pci/hda/patch_realtek.c	Mon Dec 04 18:03:53 2006 +0100
+++ b/pci/hda/patch_realtek.c	Thu Dec 07 15:37:34 2006 -0800
@@ -112,6 +112,7 @@ enum {
 	ALC882_6ST_DIG,
 	ALC882_ARIMA,
 	ALC882_AUTO,
+	ALC885_MACPRO,
 	ALC882_MODEL_LAST,
 };
 
@@ -4507,6 +4508,39 @@ static struct hda_verb alc882_eapd_verbs
 	{ } 
 };
 
+/* Mac Pro test */
+static void alc882_gpio_mute(struct hda_codec *codec, int pin, int muted)
+{
+	unsigned int gpiostate, gpiomask, gpiodir;
+
+	gpiostate = snd_hda_codec_read(codec, codec->afg, 0,
+				       AC_VERB_GET_GPIO_DATA, 0);
+
+	if (!muted)
+		gpiostate |= (1 << pin);
+	else
+		gpiostate &= ~(1 << pin);
+
+	gpiomask = snd_hda_codec_read(codec, codec->afg, 0,
+				      AC_VERB_GET_GPIO_MASK, 0);
+	gpiomask |= (1 << pin);
+
+	gpiodir = snd_hda_codec_read(codec, codec->afg, 0,
+				     AC_VERB_GET_GPIO_DIRECTION, 0);
+	gpiodir |= (1 << pin);
+
+
+	snd_hda_codec_write(codec, codec->afg, 0,
+			    AC_VERB_SET_GPIO_MASK, gpiomask);
+	snd_hda_codec_write(codec, codec->afg, 0,
+			    AC_VERB_SET_GPIO_DIRECTION, gpiodir);
+
+	msleep(1);
+
+	snd_hda_codec_write(codec, codec->afg, 0,
+			    AC_VERB_SET_GPIO_DATA, gpiostate);
+}
+
 /*
  * generic initialization of ADC, input mixers and output mixers
  */
@@ -4633,6 +4667,7 @@ static const char *alc882_models[ALC882_
 	[ALC882_3ST_DIG]	= "3stack-dig",
 	[ALC882_6ST_DIG]	= "6stack-dig",
 	[ALC882_ARIMA]		= "arima",
+	[ALC885_MACPRO]		= "macpro",
 	[ALC882_AUTO]		= "auto",
 };
 
@@ -4675,6 +4710,17 @@ static struct alc_config_preset alc882_p
 		.dac_nids = alc882_dac_nids,
 		.num_channel_mode = ARRAY_SIZE(alc882_sixstack_modes),
 		.channel_mode = alc882_sixstack_modes,
+		.input_mux = &alc882_capture_source,
+	},
+	[ALC885_MACPRO] = {
+		.mixers = { alc882_base_mixer },
+		.init_verbs = { alc882_init_verbs },
+		.num_dacs = ARRAY_SIZE(alc882_dac_nids),
+		.dac_nids = alc882_dac_nids,
+		.dig_out_nid = ALC882_DIGOUT_NID,
+		.dig_in_nid = ALC882_DIGIN_NID,
+		.num_channel_mode = ARRAY_SIZE(alc882_ch_modes),
+		.channel_mode = alc882_ch_modes,
 		.input_mux = &alc882_capture_source,
 	},
 };
@@ -4803,6 +4849,11 @@ static int patch_alc882(struct hda_codec
 
 	if (board_config != ALC882_AUTO)
 		setup_preset(spec, &alc882_presets[board_config]);
+
+	if (board_config == ALC885_MACPRO) {
+		alc882_gpio_mute(codec, 0, 0);
+		alc882_gpio_mute(codec, 1, 0);
+	}
 
 	spec->stream_name_analog = "ALC882 Analog";
 	spec->stream_analog_playback = &alc882_pcm_analog_playback;