[PATCH] ALSA: usb-audio: Fix regression with Dell Dock jack detection

[Takashi Iwai]

The recent commit added Jack controls to Dell Dock, but it added with
iface = SNDRV_CTL_ELEM_IFACE_CARD.  Unfortunately this doesn't match
with the changes in user-space UCM profile, which expects iface =
SNDRV_CTL_ELEM_IFACE_MIXER as default.  This mismatch resulted in the
non-working profile, and the Dell Dock is gone on pipewire /
PulseAudio after the kernel update.

Fix the regression by adjusting the iface of the new ctl elements to
*_MIXER.

Fixes: 4b8ea38fabab ("ALSA: usb-audio: Support jack detection on Dell dock")
Cc: <stable at vger.kernel.org>
Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1204719
Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/usb/mixer_quirks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index ab0d459f4271..3039a17259ab 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -2042,7 +2042,7 @@ static int realtek_ctl_connector_get(struct snd_kcontrol *kcontrol,
 }
 
 static const struct snd_kcontrol_new realtek_connector_ctl_ro = {
-	.iface = SNDRV_CTL_ELEM_IFACE_CARD,
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.name = "", /* will be filled later manually */
 	.access = SNDRV_CTL_ELEM_ACCESS_READ,
 	.info = snd_ctl_boolean_mono_info,
-- 
2.35.3