From 3aabf94c2d95fe465d5fa8590113d1c1f7d8333d Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Wed, 8 Nov 2017 15:28:33 +0800
Subject: [PATCH] ALSA: hda/realtek - Fix ALC275 no sound issue
Patch-mainline: v4.15-rc1
References: bsc#1051510
Git-commit: 3aabf94c2d95fe465d5fa8590113d1c1f7d8333d

Sound works after a cold boot but not after a reboot from windows.
This patch will solve this issue. This is relation with Class-D power control.

[ The bug was reported in Bugzilla below for Sony VAIO SVS13A1C5E
  -- tiwai]

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=197737
Cc: <stable@vger.kernel.org>
Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

---
 sound/pci/hda/patch_realtek.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -344,6 +344,9 @@ static void alc_fill_eapd_coef(struct hd
 	case 0x10ec0299:
 		alc_update_coef_idx(codec, 0x10, 1<<9, 0);
 		break;
+	case 0x10ec0275:
+		alc_update_coef_idx(codec, 0xe, 0, 1<<0);
+		break;
 	case 0x10ec0293:
 		alc_update_coef_idx(codec, 0xa, 1<<13, 0);
 		break;