[ALSA] hda-codec - Fix Gateway laptops with STAC9200

Fix the output of Gateway laptops with STAC9200 codec chip.
They require the EAPD control for some pins.  These pins shouldn't be
powered down.
To enable EAPD control, a new model 'gateway' was added to STAC9200.
The known PCI SSIDs are included in the quirk list.
The fix was originally suggested by Brian Hinz, in ALSA bug#2948.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

2 files changed, 34 insertions, 3 deletions

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 239cdd855dfe..187533e477c6 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1630,10 +1630,24 @@ static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
 
 	nid = codec->start_nid;
 	for (i = 0; i < codec->num_nodes; i++, nid++) {
-		if (get_wcaps(codec, nid) & AC_WCAP_POWER)
+		if (get_wcaps(codec, nid) & AC_WCAP_POWER) {
+			unsigned int pincap;
+			/*
+			 * don't power down the widget if it controls eapd
+			 * and EAPD_BTLENABLE is set.
+			 */
+			pincap = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
+			if (pincap & AC_PINCAP_EAPD) {
+				int eapd = snd_hda_codec_read(codec, nid,
+					0, AC_VERB_GET_EAPD_BTLENABLE, 0);
+				eapd &= 0x02;
+				if (power_state == AC_PWRST_D3 && eapd)
+					continue;
+			}
 			snd_hda_codec_write(codec, nid, 0,
 					    AC_VERB_SET_POWER_STATE,
 					    power_state);
+		}
 	}
 
 	if (power_state == AC_PWRST_D0) {
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 27360d278bcf..fe91b9b46b61 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -49,6 +49,7 @@ enum {
 	STAC_9200_DELL_M25,
 	STAC_9200_DELL_M26,
 	STAC_9200_DELL_M27,
+	STAC_9200_GATEWAY,
 	STAC_9200_MODELS
 };
 
@@ -378,6 +379,13 @@ static struct hda_verb stac9200_core_init[] = {
 	{}
 };
 
+static struct hda_verb stac9200_eapd_init[] = {
+	/* set dac0mux for dac converter */
+	{0x07, AC_VERB_SET_CONNECT_SEL, 0x00},
+	{0x08, AC_VERB_SET_EAPD_BTLENABLE, 0x02},
+	{}
+};
+
 static struct hda_verb stac925x_core_init[] = {
 	/* set dac0mux for dac converter */
 	{ 0x06, AC_VERB_SET_CONNECT_SEL, 0x00},
@@ -693,6 +701,7 @@ static const char *stac9200_models[STAC_9200_MODELS] = {
 	[STAC_9200_DELL_M25] = "dell-m25",
 	[STAC_9200_DELL_M26] = "dell-m26",
 	[STAC_9200_DELL_M27] = "dell-m27",
+	[STAC_9200_GATEWAY] = "gateway",
 };
 
 static struct snd_pci_quirk stac9200_cfg_tbl[] = {
@@ -760,7 +769,12 @@ static struct snd_pci_quirk stac9200_cfg_tbl[] = {
 		      "unknown Dell", STAC_9200_DELL_M26),
 	/* Panasonic */
 	SND_PCI_QUIRK(0x10f7, 0x8338, "Panasonic CF-74", STAC_REF),
-
+	/* Gateway machines needs EAPD to be set on resume */
+	SND_PCI_QUIRK(0x107b, 0x0205, "Gateway S-7110M", STAC_9200_GATEWAY),
+	SND_PCI_QUIRK(0x107b, 0x0317, "Gateway MT3423, MX341*",
+		      STAC_9200_GATEWAY),
+	SND_PCI_QUIRK(0x107b, 0x0318, "Gateway ML3019, MT3707",
+		      STAC_9200_GATEWAY),
 	{} /* terminator */
 };
 
@@ -2492,7 +2506,10 @@ static int patch_stac9200(struct hda_codec *codec)
 	spec->num_dmics = 0;
 	spec->num_adcs = 1;
 
-	spec->init = stac9200_core_init;
+	if (spec->board_config == STAC_9200_GATEWAY)
+		spec->init = stac9200_eapd_init;
+	else
+		spec->init = stac9200_core_init;
 	spec->mixer = stac9200_mixer;
 
 	err = stac9200_parse_auto_config(codec);