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| author | Jurgen Kramer <gtmkramer@xs4all.nl> | 2014-11-15 14:01:21 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-12-06 15:55:37 -0800 |
| commit | c411574a781db07245aeda9a1c5ba1d6fe25576b (patch) | |
| tree | b9a695345d56c2347cc261cef8209849852e8820 /sound | |
| parent | dcc95f3b5d7e9426499213cb3387852cde67f90d (diff) | |
| download | lwn-c411574a781db07245aeda9a1c5ba1d6fe25576b.tar.gz lwn-c411574a781db07245aeda9a1c5ba1d6fe25576b.zip | |
ALSA: usb-audio: Add ctrl message delay quirk for Marantz/Denon devices
commit 6e84a8d7ac3ba246ef44e313e92bc16a1da1b04a upstream.
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>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/usb/quirks.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index c64a3d96db22..827d40441ec7 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1142,6 +1142,20 @@ 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; + } + } } /* |