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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Kailang Yang <kailang@realtek.com>,
        Takashi Iwai <tiwai@suse.de>
Subject: [PATCH 4.19 136/142] ALSA: hda/realtek - Fixed headphone issue for ALC700
Date:   Fri, 14 Dec 2018 13:00:21 +0100
Message-Id: <20181214115752.478049470@linuxfoundation.org>
In-Reply-To: <20181214115747.053633987@linuxfoundation.org>
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4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Kailang Yang <kailang@realtek.com>

commit bde1a7459623a66c2abec4d0a841e4b06cc88d9a upstream.

If it plugged headphone or headset into the jack, then
do the reboot, it will have a chance to cause headphone no sound.
It just need to run the headphone mode procedure after boot time.
The issue will be fixed.
It also suitable for ALC234 ALC274 and ALC294.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/pci/hda/patch_realtek.c |   33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -7227,6 +7227,37 @@ static void alc269_fill_coef(struct hda_
 	alc_update_coef_idx(codec, 0x4, 0, 1<<11);
 }
 
+static void alc294_hp_init(struct hda_codec *codec)
+{
+	struct alc_spec *spec = codec->spec;
+	hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
+	int i, val;
+
+	if (!hp_pin)
+		return;
+
+	snd_hda_codec_write(codec, hp_pin, 0,
+			    AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
+
+	msleep(100);
+
+	snd_hda_codec_write(codec, hp_pin, 0,
+			    AC_VERB_SET_PIN_WIDGET_CONTROL, 0x0);
+
+	alc_update_coef_idx(codec, 0x6f, 0x000f, 0);/* Set HP depop to manual mode */
+	alc_update_coefex_idx(codec, 0x58, 0x00, 0x8000, 0x8000); /* HP depop procedure start */
+
+	/* Wait for depop procedure finish  */
+	val = alc_read_coefex_idx(codec, 0x58, 0x01);
+	for (i = 0; i < 20 && val & 0x0080; i++) {
+		msleep(50);
+		val = alc_read_coefex_idx(codec, 0x58, 0x01);
+	}
+	/* Set HP depop to auto mode */
+	alc_update_coef_idx(codec, 0x6f, 0x000f, 0x000b);
+	msleep(50);
+}
+
 /*
  */
 static int patch_alc269(struct hda_codec *codec)
@@ -7352,6 +7383,7 @@ static int patch_alc269(struct hda_codec
 		spec->codec_variant = ALC269_TYPE_ALC294;
 		spec->gen.mixer_nid = 0; /* ALC2x4 does not have any loopback mixer path */
 		alc_update_coef_idx(codec, 0x6b, 0x0018, (1<<4) | (1<<3)); /* UAJ MIC Vref control by verb */
+		alc294_hp_init(codec);
 		break;
 	case 0x10ec0300:
 		spec->codec_variant = ALC269_TYPE_ALC300;
@@ -7363,6 +7395,7 @@ static int patch_alc269(struct hda_codec
 		spec->codec_variant = ALC269_TYPE_ALC700;
 		spec->gen.mixer_nid = 0; /* ALC700 does not have any loopback mixer path */
 		alc_update_coef_idx(codec, 0x4a, 1 << 15, 0); /* Combo jack auto trigger control */
+		alc294_hp_init(codec);
 		break;
 
 	}