From 3c24e48330adfa46b87cdb892939996c67e498b5 Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Thu, 1 Jul 2021 09:33:33 +0800
Subject: [PATCH] ALSA: hda/realtek - Add ALC285 HP init procedure
Git-commit: 3c24e48330adfa46b87cdb892939996c67e498b5
Patch-mainline: v5.14-rc1
References: git-fixes

ALC285 headphone initial procedure.
It also could suitable for ALC215/ALC289/ALC225/ALC295/ALC299.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Link: https://lore.kernel.org/r/2b7539c3e96f41a4ab458d53ea5f5784@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

---
 sound/pci/hda/patch_realtek.c | 58 +++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index e5353eb0cb03..083327aeb361 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3563,12 +3563,70 @@ static void alc256_shutup(struct hda_codec *codec)
 	}
 }
 
+static void alc285_hp_init(struct hda_codec *codec)
+{
+	struct alc_spec *spec = codec->spec;
+	hda_nid_t hp_pin = alc_get_hp_pin(spec);
+	int i, val;
+	int coef38, coef0d, coef36;
+
+	alc_update_coef_idx(codec, 0x4a, 1<<15, 1<<15); /* Reset HP JD */
+	coef38 = alc_read_coef_idx(codec, 0x38); /* Amp control */
+	coef0d = alc_read_coef_idx(codec, 0x0d); /* Digital Misc control */
+	coef36 = alc_read_coef_idx(codec, 0x36); /* Passthrough Control */
+	alc_update_coef_idx(codec, 0x38, 1<<4, 0x0);
+	alc_update_coef_idx(codec, 0x0d, 0x110, 0x0);
+
+	alc_update_coef_idx(codec, 0x67, 0xf000, 0x3000);
+
+	if (hp_pin)
+		snd_hda_codec_write(codec, hp_pin, 0,
+			    AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
+
+	msleep(130);
+	alc_update_coef_idx(codec, 0x36, 1<<14, 1<<14);
+	alc_update_coef_idx(codec, 0x36, 1<<13, 0x0);
+
+	if (hp_pin)
+		snd_hda_codec_write(codec, hp_pin, 0,
+			    AC_VERB_SET_PIN_WIDGET_CONTROL, 0x0);
+	msleep(10);
+	alc_write_coef_idx(codec, 0x67, 0x0); /* Set HP depop to manual mode */
+	alc_write_coefex_idx(codec, 0x58, 0x00, 0x7880);
+	alc_write_coefex_idx(codec, 0x58, 0x0f, 0xf049);
+	alc_update_coefex_idx(codec, 0x58, 0x03, 0x00f0, 0x00c0);
+
+	alc_write_coefex_idx(codec, 0x58, 0x00, 0xf888); /* HP depop procedure start */
+	val = alc_read_coefex_idx(codec, 0x58, 0x00);
+	for (i = 0; i < 20 && val & 0x8000; i++) {
+		msleep(50);
+		val = alc_read_coefex_idx(codec, 0x58, 0x00);
+	} /* Wait for depop procedure finish  */
+
+	alc_write_coefex_idx(codec, 0x58, 0x00, val); /* write back the result */
+	alc_update_coef_idx(codec, 0x38, 1<<4, coef38);
+	alc_update_coef_idx(codec, 0x0d, 0x110, coef0d);
+	alc_update_coef_idx(codec, 0x36, 3<<13, coef36);
+
+	msleep(50);
+	alc_update_coef_idx(codec, 0x4a, 1<<15, 0);
+}
+
 static void alc225_init(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
 	hda_nid_t hp_pin = alc_get_hp_pin(spec);
 	bool hp1_pin_sense, hp2_pin_sense;
 
+	if (spec->codec_variant != ALC269_TYPE_ALC287)
+		/* required only at boot or S3 and S4 resume time */
+		if (!spec->done_hp_init ||
+			is_s3_resume(codec) ||
+			is_s4_resume(codec)) {
+			alc285_hp_init(codec);
+			spec->done_hp_init = true;
+		}
+
 	if (!hp_pin)
 		hp_pin = 0x21;
 	msleep(30);
-- 
2.26.2