ALSA: usb-audio: Add ctrl message delay quirk for Marantz/Denon devices
This patch adds a USB control message delay quirk for a few specific Marantz/Denon
devices. Without the delay the DACs will not work properly and produces the
following type of messages:
Nov 15 10:09:21 orwell kernel: [ 91.342880] usb 3-13: clock source 41 is not valid, cannot use
Nov 15 10:09:21 orwell kernel: [ 91.343775] usb 3-13: clock source 41 is not valid, cannot use
There are likely other Marantz/Denon devices using the same USB module which exhibit the
same problems. But as this cannot be verified I limited the patch to the devices
I could test.
The following two devices are covered by this path:
- Marantz SA-14S1
- Marantz HD-DAC1
Signed-off-by: Jurgen Kramer <gtmkramer@xs4all.nl>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index d2aa45a..a5941f8 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1146,6 +1146,20 @@
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;
+ }
+ }
}
/*