Same issue that the Scarlett 2i2 1st Gen had:
QUIRK_FLAG_SKIP_IFACE_SETUP causes distorted/flanging audio on the
Scarlett 2i4 1st Gen (1235:800a).
Fixes: 38c322068a26 ("ALSA: usb-audio: Add QUIRK_FLAG_SKIP_IFACE_SETUP")
Reported-by: dcferreira [https://github.com/geoffreybennett/linux-fcp/issues/54]
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://patch.msgid.link/acEkEbftzyNe8W7C@m.b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
VENDOR_FLG(0x07fd, /* MOTU */
QUIRK_FLAG_VALIDATE_RATES),
DEVICE_FLG(0x1235, 0x8006, 0), /* Focusrite Scarlett 2i2 1st Gen */
+ DEVICE_FLG(0x1235, 0x800a, 0), /* Focusrite Scarlett 2i4 1st Gen */
VENDOR_FLG(0x1235, /* Focusrite Novation */
QUIRK_FLAG_SKIP_CLOCK_SELECTOR |
QUIRK_FLAG_SKIP_IFACE_SETUP),