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authorGuillaume Fougnies <guillaume@eulerian.com>2016-01-26 02:28:27 +0300
committerTakashi Iwai <tiwai@suse.de>2016-01-26 08:58:57 +0300
commit5a4ff9ec8d6edd2ab1cfe8ce6a080d6e57cbea9a (patch)
treea69c85de5d947b3bd9987e0793c3208d96f44656 /sound/usb
parent462b3f161beb62eeb290f4ec52f5ead29a2f8ac7 (diff)
downloadlinux-5a4ff9ec8d6edd2ab1cfe8ce6a080d6e57cbea9a.tar.xz
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>
Diffstat (limited to 'sound/usb')
-rw-r--r--sound/usb/quirks.c14
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
*/