ALSA: hda - Add quirk for Gateway %1616 laptop

Gateway T1616 laptop needs EAPD always on while the current STAC9205
code turns off per HP plug.  Added a new model "eapd" to keep it on.

Reference: Novell bnc#467597
	https://bugzilla.novell.com/show_bug.cgi?id=467597

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

Documentation/sound/alsa/HD-Audio-Models.txt

@@ -285,6 +285,7 @@ STAC9205/9254
   dell-m42	Dell (unknown)
   dell-m43	Dell Precision
   dell-m44	Dell Inspiron
+  eapd		Keep EAPD on (e.g. Gateway T1616)
 
 STAC9220/9221
 =============

sound/pci/hda/patch_sigmatel.c

@@ -66,6 +66,7 @@ enum {
 	STAC_9205_DELL_M42,
 	STAC_9205_DELL_M43,
 	STAC_9205_DELL_M44,
+	STAC_9205_EAPD,
 	STAC_9205_MODELS
 };
 
@@ -2240,6 +2241,7 @@ static unsigned int *stac9205_brd_tbl[STAC_9205_MODELS] = {
 	[STAC_9205_DELL_M42] = dell_9205_m42_pin_configs,
 	[STAC_9205_DELL_M43] = dell_9205_m43_pin_configs,
 	[STAC_9205_DELL_M44] = dell_9205_m44_pin_configs,
+	[STAC_9205_EAPD] = NULL,
 };
 
 static const char *stac9205_models[STAC_9205_MODELS] = {
@@ -2247,12 +2249,14 @@ static const char *stac9205_models[STAC_9205_MODELS] = {
 	[STAC_9205_DELL_M42] = "dell-m42",
 	[STAC_9205_DELL_M43] = "dell-m43",
 	[STAC_9205_DELL_M44] = "dell-m44",
+	[STAC_9205_EAPD] = "eapd",
 };
 
 static struct snd_pci_quirk stac9205_cfg_tbl[] = {
 	/* SigmaTel reference board */
 	SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x2668,
 		      "DFI LanParty", STAC_9205_REF),
+	/* Dell */
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x01f1,
 		      "unknown Dell", STAC_9205_DELL_M42),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x01f2,
@@ -2283,6 +2287,8 @@ static struct snd_pci_quirk stac9205_cfg_tbl[] = {
 		      "Dell Inspiron", STAC_9205_DELL_M44),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0228,
 		      "Dell Vostro 1500", STAC_9205_DELL_M42),
+	/* Gateway */
+	SND_PCI_QUIRK(0x107b, 0x0565, "Gateway T1616", STAC_9205_EAPD),
 	{} /* terminator */
 };
 
@@ -5320,7 +5326,9 @@ static int patch_stac9205(struct hda_codec *codec)
 
 	spec->aloopback_mask = 0x40;
 	spec->aloopback_shift = 0;
-	spec->eapd_switch = 1;
+	/* Turn on/off EAPD per HP plugging */
+	if (spec->board_config != STAC_9205_EAPD)
+		spec->eapd_switch = 1;
 	spec->multiout.dac_nids = spec->dac_nids;
 	
 	switch (spec->board_config){