The patch below does not apply to the v4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

Thanks,
Sasha

------------------ original commit in Linus's tree ------------------

From 4413665dd6c528b31284119e3571c25f371e1c36 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20Sch=C3=A4r?= <jan@jschaer.ch>
Date: Tue, 29 Oct 2024 23:12:49 +0100
Subject: [PATCH] ALSA: usb-audio: Add quirks for Dell WD19 dock
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The WD19 family of docks has the same audio chipset as the WD15. This
change enables jack detection on the WD19.

We don't need the dell_dock_mixer_init quirk for the WD19. It is only
needed because of the dell_alc4020_map quirk for the WD15 in
mixer_maps.c, which disables the volume controls. Even for the WD15,
this quirk was apparently only needed when the dock firmware was not
updated.

Signed-off-by: Jan Schär <jan@jschaer.ch>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20241029221249.15661-1-jan@jschaer.ch
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/mixer_quirks.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 2a9594f34dac6..6456e87e2f397 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -4042,6 +4042,9 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
 			break;
 		err = dell_dock_mixer_init(mixer);
 		break;
+	case USB_ID(0x0bda, 0x402e): /* Dell WD19 dock */
+		err = dell_dock_mixer_create(mixer);
+		break;
 
 	case USB_ID(0x2a39, 0x3fd2): /* RME ADI-2 Pro */
 	case USB_ID(0x2a39, 0x3fd3): /* RME ADI-2 DAC */
-- 
2.43.0