ALSA: usb-audio: Fix TEAC UD-501/UD-503/NT-503 usb delay

TEAC UD-501/UD-503/NT-503 fail to switch properly between different
rate/format. Similar to 'Playback Design', this patch corrects the
invalid clock source error for TEAC products and avoids complete
freeze of the usb interface of 503 series.

Signed-off-by: Guillaume Fougnies <guillaume@eulerian.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 13 insertions, 1 deletions

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 23ea6d800c4c..a75d9ce7d77a 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1205,8 +1205,12 @@ void snd_usb_set_interface_quirk(struct usb_device *dev)
          * "Playback Design" products need a 50ms delay after setting the
          * USB interface.
          */
-        if (le16_to_cpu(dev->descriptor.idVendor) == 0x23ba)
+        switch (le16_to_cpu(dev->descriptor.idVendor)) {
+        case 0x23ba: /* Playback Design */
+        case 0x0644: /* TEAC Corp. */
                 mdelay(50);
+                break;
+        }
 }
 
 void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
@@ -1221,6 +1225,14 @@ void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
             (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
                 mdelay(20);
 
+        /*
+         * "TEAC Corp." products need a 20ms delay after each
+         * class compliant request
+         */
+        if ((le16_to_cpu(dev->descriptor.idVendor) == 0x0644) &&
+            (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
+                mdelay(20);
+
         /* Marantz/Denon devices with USB DAC functionality need a delay
          * after each class compliant request
          */