[PATCH 5.4 07/90] ALSA: usb-audio: Add implicit feedback quirk for SSL2

From: Greg Kroah-Hartman
Date: Mon Aug 03 2020 - 08:27:56 EST


From: Laurence Tratt <laurie@xxxxxxxxx>

commit 3da87ec67a491b9633a82045896c076b794bf938 upstream.

As expected, this requires the same quirk as the SSL2+ in order for the
clock to sync. This was suggested by, and tested on an SSL2, by Dmitry.

Suggested-by: Dmitry <dpavlushko@xxxxxxxxx>
Signed-off-by: Laurence Tratt <laurie@xxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20200621075005.52mjjfc6dtdjnr3h@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
sound/usb/pcm.c | 1 +
1 file changed, 1 insertion(+)

--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -354,6 +354,7 @@ static int set_sync_ep_implicit_fb_quirk
ifnum = 0;
goto add_sync_ep_from_ifnum;
case USB_ID(0x07fd, 0x0008): /* MOTU M Series */
+ case USB_ID(0x31e9, 0x0001): /* Solid State Logic SSL2 */
case USB_ID(0x31e9, 0x0002): /* Solid State Logic SSL2+ */
case USB_ID(0x0d9a, 0x00df): /* RTX6001 */
ep = 0x81;