ALSA: usb-audio: dynamic detection of MIDI interfaces in uaxx-quirk

The MIDI interfaces have to be detected dynamically for Edirol devices
ua-700, ua-25 and ua4-fx. This patch reverses the wrong changes made by
my other patch in uaxx-quirk.
Signed-off-by: Pedro Lopez-Cabanillas <pedro.lopez.cabanillas@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

sound/usb/usbaudio.c

@@ -3023,6 +3023,31 @@ static int create_uaxx_quirk(struct snd_usb_audio *chip,
 	alts = &iface->altsetting[1];
 	altsd = get_iface_desc(alts);
 
+	if (altsd->bNumEndpoints == 2) {
+		static const struct snd_usb_midi_endpoint_info ua700_ep = {
+			.out_cables = 0x0003,
+			.in_cables  = 0x0003
+		};
+		static const struct snd_usb_audio_quirk ua700_quirk = {
+			.type = QUIRK_MIDI_FIXED_ENDPOINT,
+			.data = &ua700_ep
+		};
+		static const struct snd_usb_midi_endpoint_info uaxx_ep = {
+			.out_cables = 0x0001,
+			.in_cables  = 0x0001
+		};
+		static const struct snd_usb_audio_quirk uaxx_quirk = {
+			.type = QUIRK_MIDI_FIXED_ENDPOINT,
+			.data = &uaxx_ep
+		};
+		if (chip->usb_id == USB_ID(0x0582, 0x002b))
+			return snd_usb_create_midi_interface(chip, iface,
+							     &ua700_quirk);
+		else
+			return snd_usb_create_midi_interface(chip, iface,
+							     &uaxx_quirk);
+	}
+
 	if (altsd->bNumEndpoints != 1)
 		return -ENXIO;
 

sound/usb/usbquirks.h

@@ -870,11 +870,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			},
 			{
 				.ifnum = 3,
-				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const struct snd_usb_midi_endpoint_info) {
-					.out_cables = 0x0003,
-					.in_cables  = 0x0003
-				}
+				.type = QUIRK_AUDIO_EDIROL_UAXX
 			},
 			{
 				.ifnum = -1
@@ -1216,11 +1212,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			},
 			{
 				.ifnum = 2,
-				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const struct snd_usb_midi_endpoint_info) {
-					.out_cables = 0x0001,
-					.in_cables  = 0x0001
-				}
+				.type = QUIRK_AUDIO_EDIROL_UAXX
 			},
 			{
 				.ifnum = -1
@@ -1375,11 +1367,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 			},
 			{
 				.ifnum = 2,
-				.type = QUIRK_MIDI_FIXED_ENDPOINT,
-				.data = & (const struct snd_usb_midi_endpoint_info) {
-					.out_cables = 0x0001,
-					.in_cables  = 0x0001
-				}
+				.type = QUIRK_AUDIO_EDIROL_UAXX
 			},
 			{
 				.ifnum = -1