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-rw-r--r--sound/usb/quirks.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index d2aa45a8d895..a5941f80fc5b 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1146,6 +1146,20 @@ void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
if ((le16_to_cpu(dev->descriptor.idVendor) == 0x23ba) &&
(requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
mdelay(20);
+
+ /* Marantz/Denon devices with USB DAC functionality need a delay
+ * after each class compliant request
+ */
+ if ((le16_to_cpu(dev->descriptor.idVendor) == 0x154e) &&
+ (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) {
+
+ switch (le16_to_cpu(dev->descriptor.idProduct)) {
+ case 0x3005: /* Marantz HD-DAC1 */
+ case 0x3006: /* Marantz SA-14S1 */
+ mdelay(20);
+ break;
+ }
+ }
}
/*