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Subject[PATCH 4.14 092/193] ALSA: hda/realtek - Fix ALC275 no sound issue
Date
4.14-stable review patch.  If anyone has any objections, please let me know.

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

From: Kailang Yang <kailang@realtek.com>

commit 3aabf94c2d95fe465d5fa8590113d1c1f7d8333d upstream.

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

---
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
@@ -341,6 +341,9 @@ 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;

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