ALSA: usb: use TEAC UD-H01 quirk for more devices

The quirk seems to be necessary not only for TEAC UD-H01 devices, but to
more that are based on the Tenor 8802TL chipset. Devices built by T+A
are affected too, and they apparently all use the same USB PID:PID.

Extend the quirky handling for that device as well, and rename the
quirks flag.
Reported-and-tested-by: NThomas Gresens <T.Gresens@intershop.de>
Signed-off-by: NDaniel Mack <daniel@zonque.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/usb/card.h

@@ -92,7 +92,7 @@ struct snd_usb_endpoint {
 	unsigned int curframesize;      /* current packet size in frames (for capture) */
 	unsigned int syncmaxsize;	/* sync endpoint packet size */
 	unsigned int fill_max:1;	/* fill max packet size always */
-	unsigned int udh01_fb_quirk:1;	/* corrupted feedback data */
+	unsigned int tenor_fb_quirk:1;	/* corrupted feedback data */
 	unsigned int datainterval;      /* log_2 of data packet interval */
 	unsigned int syncinterval;	/* P for adaptive mode, 0 otherwise */
 	unsigned char silence_value;

sound/usb/endpoint.c

@@ -1167,9 +1167,10 @@ void snd_usb_handle_sync_urb(struct snd_usb_endpoint *ep,
 	if (f == 0)
 		return;
 
-	if (unlikely(sender->udh01_fb_quirk)) {
+	if (unlikely(sender->tenor_fb_quirk)) {
 		/*
-		 * The TEAC UD-H01 firmware sometimes changes the feedback value
+		 * Devices based on Tenor 8802 chipsets (TEAC UD-H01
+		 * and others) sometimes change the feedback value
 		 * by +/- 0x1.0000.
 		 */
 		if (f < ep->freqn - 0x8000)

sound/usb/quirks.c

@@ -1218,9 +1218,10 @@ void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep)
 		ep->skip_packets = 16;
 
 	/* Work around devices that report unreasonable feedback data */
-	if (ep->chip->usb_id == USB_ID(0x0644, 0x8038) /* TEAC UD-H01 */ &&
+	if ((ep->chip->usb_id == USB_ID(0x0644, 0x8038) ||  /* TEAC UD-H01 */
+	     ep->chip->usb_id == USB_ID(0x1852, 0x5034)) && /* T+A Dac8 */
 	    ep->syncmaxsize == 4)
-		ep->udh01_fb_quirk = 1;
+		ep->tenor_fb_quirk = 1;
 }
 
 void snd_usb_set_interface_quirk(struct usb_device *dev)