[PATCH V2] ALSA: hda/conexant: fix Z60MR100 startup pop issue

[bo liu <bo.liu@xxxxxxxxxxxxxx>]

When Z60MR100 startup, speaker will output a pop. To fix this issue,
we mute codec by init verbs in bios when system startup, and set GPIO
to low to unmute codec in codec driver when it loaded .

Signed-off-by: bo liu <bo.liu@xxxxxxxxxxxxxx>
---
 sound/pci/hda/patch_conexant.c | 35 ++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index e851785ff058..62c53e64bcad 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -42,6 +42,7 @@ struct conexant_spec {
 	unsigned int gpio_led;
 	unsigned int gpio_mute_led_mask;
 	unsigned int gpio_mic_led_mask;
+	unsigned int gpio_unmute_bit_mask;
 	bool is_cx8070_sn6140;
 };
 
@@ -308,6 +309,7 @@ enum {
 	CXT_FIXUP_HP_MIC_NO_PRESENCE,
 	CXT_PINCFG_SWS_JS201D,
 	CXT_PINCFG_TOP_SPEAKER,
+	CXT_FIXUP_HP_A_U,
 };
 
 /* for hda_fixup_thinkpad_acpi() */
@@ -762,6 +764,24 @@ static void cxt_setup_mute_led(struct hda_codec *codec,
 	}
 }
 
+static void cxt_setup_mute_gpio_and_unmute(struct hda_codec *codec,
+				unsigned int gpio_mute_mask)
+{
+	struct conexant_spec *spec = codec->spec;
+
+	if (gpio_mute_mask) {
+		spec->gpio_unmute_bit_mask = gpio_mute_mask;
+
+		//set gpio data to 0.
+		snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_DATA, 0);
+		snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_MASK,
+					spec->gpio_unmute_bit_mask);
+		snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_DIRECTION,
+					spec->gpio_unmute_bit_mask);
+		snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_STICKY_MASK, 0);
+	}
+}
+
 static void cxt_fixup_mute_led_gpio(struct hda_codec *codec,
 				const struct hda_fixup *fix, int action)
 {
@@ -776,6 +796,15 @@ static void cxt_fixup_hp_zbook_mute_led(struct hda_codec *codec,
 		cxt_setup_mute_led(codec, 0x10, 0x20);
 }
 
+static void cxt_fixup_hp_a_u(struct hda_codec *codec,
+			const struct hda_fixup *fix, int action)
+{
+	//Init vers in BIOS mute the spk/hp by set gpio high to avoid pop noise,
+	//so need to unmute once by clearing the gpio data when runs into the system.
+	if (action == HDA_FIXUP_ACT_INIT)
+		cxt_setup_mute_gpio_and_unmute(codec, 0x2);
+}
+
 /* ThinkPad X200 & co with cxt5051 */
 static const struct hda_pintbl cxt_pincfg_lenovo_x200[] = {
 	{ 0x16, 0x042140ff }, /* HP (seq# overridden) */
@@ -982,6 +1011,10 @@ static const struct hda_fixup cxt_fixups[] = {
 			{ }
 		},
 	},
+	[CXT_FIXUP_HP_A_U] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = cxt_fixup_hp_a_u,
+	},
 };
 
 static const struct snd_pci_quirk cxt5045_fixups[] = {
@@ -1055,6 +1088,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
 	SND_PCI_QUIRK(0x103c, 0x8457, "HP Z2 G4 mini", CXT_FIXUP_HP_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x8458, "HP Z2 G4 mini premium", CXT_FIXUP_HP_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1043, 0x138d, "Asus", CXT_FIXUP_HEADPHONE_MIC_PIN),
+	SND_PCI_QUIRK(0x14f1, 0x0252, "MBX-Z60MR100", CXT_FIXUP_HP_A_U),
 	SND_PCI_QUIRK(0x14f1, 0x0265, "SWS JS201D", CXT_PINCFG_SWS_JS201D),
 	SND_PCI_QUIRK(0x152d, 0x0833, "OLPC XO-1.5", CXT_FIXUP_OLPC_XO),
 	SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo T400", CXT_PINCFG_LENOVO_TP410),
@@ -1100,6 +1134,7 @@ static const struct hda_model_fixup cxt5066_fixup_models[] = {
 	{ .id = CXT_PINCFG_LENOVO_NOTEBOOK, .name = "lenovo-20149" },
 	{ .id = CXT_PINCFG_SWS_JS201D, .name = "sws-js201d" },
 	{ .id = CXT_PINCFG_TOP_SPEAKER, .name = "sirius-top-speaker" },
+	{ .id = CXT_FIXUP_HP_A_U, .name = "HP-U-support" },
 	{}
 };
 
-- 
2.34.1