ALSA: usb-audio: Add DSD quirk for LEAK Stereo 230

Integrated amplifier LEAK Stereo 230 by IAG Limited has built-in
ESS9038Q2M DAC served by XMOS controller. It supports both DSD Native
and DSD-over-PCM (DoP) operational modes. But it doesn't work properly
by default and tries DSD-to-PCM conversion. USB quirks below allow it
to operate as designed.

Add DSD_RAW quirk flag for IAG Limited devices (vendor ID 0x2622)
Add DSD format quirk for LEAK Stereo 230 (USB ID 0x2622:0x0061)

Signed-off-by: Ivan Zhaldak <i.v.zhaldak@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20251117125848.30769-1-i.v.zhaldak@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Author: UncleZI

sound/usb/quirks.c

@@ -2030,6 +2030,7 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
 	case USB_ID(0x249c, 0x9326): /* M2Tech Young MkIII */
 	case USB_ID(0x2616, 0x0106): /* PS Audio NuWave DAC */
 	case USB_ID(0x2622, 0x0041): /* Audiolab M-DAC+ */
+	case USB_ID(0x2622, 0x0061): /* LEAK Stereo 230 */
 	case USB_ID(0x278b, 0x5100): /* Rotel RC-1590 */
 	case USB_ID(0x27f7, 0x3002): /* W4S DAC-2v2SE */
 	case USB_ID(0x29a2, 0x0086): /* Mutec MC3+ USB */
@@ -2428,6 +2429,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
 		   QUIRK_FLAG_DSD_RAW),
 	VENDOR_FLG(0x25ce, /* Mytek devices */
 		   QUIRK_FLAG_DSD_RAW),
+	VENDOR_FLG(0x2622, /* IAG Limited devices */
+		   QUIRK_FLAG_DSD_RAW),
 	VENDOR_FLG(0x278b, /* Rotel? */
 		   QUIRK_FLAG_DSD_RAW),
 	VENDOR_FLG(0x292b, /* Gustard/Ess based devices */