Merge tag 'sound-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "A relative calm release at this time with a flat diffstat.  The only
  significant change in the ALSA core side is the support for more than
  32 card instances, configurable via kconfig.  Other than that, in both
  ASoC and other parts, mostly some improvements and fixes on the driver
  side.

   - hda: More quirks for ALC269-variants on Dell & co, VIA codec fixes
   - hda: Haswell HDMI audio fixes, runtime PM improvements
   - hda: Intel BayTrail support, ALC5505 DSP support
   - es1968: MediaForte M56VAP support
   - usb-audio: Improved support for Yamaha/Roland devices
   - usb-audio: M2Tech hiFace, Audio Advantage Micro II support
   - hdspm: wordclock fixes
   - ASoC: Pending fixes for WM8962
   - ASoC: Cleanups and fixes for Blackfin, SGTL5000 and UX500
   - ASoC: Generalisation of the Bluetooth and HDMI stub drivers
   - ASoC: SSM2518 and RT5640 codec drivers.
   - ASoC: Tegra CPUs with RT5640 machine driver
   - ASoC: AC'97 refactoring bug fixes
   - ASoC: ADAU1701 driver fixes
   - Clean up of *_set_drvdata() in a wide range of drivers"

* tag 'sound-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (284 commits)
  ALSA: vmaster: Fix the regression of missing vmaster hook call
  ALSA: hda - Add Dell SSID to support Headset Mic recording
  ASoC: adau1701: remove control_data assignment
  ASoC: adau1701: more direct regmap usage
  ASoC: ac97: fixup multi-platform AC'97 module build failure
  ASoC: pxa2xx: fixup multi-platform AC'97 build failures
  ASoC: tegra20-ac97: Remove unused variable
  ASoC: tegra20-ac97: Remove duplicate error message
  ALSA: usb-audio: Add Audio Advantage Micro II
  ASoC: tas5086: fix Mid-Z implementation
  ASoC: tas5086: fix TAS5086_CLOCK_CONTROL register size
  ALSA: Replace the magic number 44 with const
  ALSA: hda - Fix the max length of control name in generic parser
  ALSA: hda - Guess what, it's two more Dell headset mic quirks
  ALSA: hda - Yet another Dell headset mic quirk
  ALSA: hda - Add support for ALC5505 DSP power-save mode
  ASoC: mfld: Remove unused variable
  ALSA: usb-audio: add quirks for Roland QUAD/OCTO-CAPTURE
  ALSA: usb-audio: claim autodetected PCM interfaces all at once
  ALSA: usb-audio: remove superfluous Roland quirks
  ...

1 files changed, 42 insertions, 3 deletions

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 93b6e32cfead..15b151ed4899 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -202,13 +202,11 @@ int snd_usb_init_pitch(struct snd_usb_audio *chip, int iface,
 		       struct usb_host_interface *alts,
 		       struct audioformat *fmt)
 {
-	struct usb_interface_descriptor *altsd = get_iface_desc(alts);
-
 	/* if endpoint doesn't have pitch control, bail out */
 	if (!(fmt->attributes & UAC_EP_CS_ATTR_PITCH_CONTROL))
 		return 0;
 
-	switch (altsd->bInterfaceProtocol) {
+	switch (fmt->protocol) {
 	case UAC_VERSION_1:
 	default:
 		return init_pitch_v1(chip, iface, alts, fmt);
@@ -300,6 +298,35 @@ static int deactivate_endpoints(struct snd_usb_substream *subs)
 	return 0;
 }
 
+static int search_roland_implicit_fb(struct usb_device *dev, int ifnum,
+				     unsigned int altsetting,
+				     struct usb_host_interface **alts,
+				     unsigned int *ep)
+{
+	struct usb_interface *iface;
+	struct usb_interface_descriptor *altsd;
+	struct usb_endpoint_descriptor *epd;
+
+	iface = usb_ifnum_to_if(dev, ifnum);
+	if (!iface || iface->num_altsetting < altsetting + 1)
+		return -ENOENT;
+	*alts = &iface->altsetting[altsetting];
+	altsd = get_iface_desc(*alts);
+	if (altsd->bAlternateSetting != altsetting ||
+	    altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC ||
+	    (altsd->bInterfaceSubClass != 2 &&
+	     altsd->bInterfaceProtocol != 2   ) ||
+	    altsd->bNumEndpoints < 1)
+		return -ENOENT;
+	epd = get_endpoint(*alts, 0);
+	if (!usb_endpoint_is_isoc_in(epd) ||
+	    (epd->bmAttributes & USB_ENDPOINT_USAGE_MASK) !=
+					USB_ENDPOINT_USAGE_IMPLICIT_FB)
+		return -ENOENT;
+	*ep = epd->bEndpointAddress;
+	return 0;
+}
+
 /*
  * find a matching format and set up the interface
  */
@@ -395,6 +422,18 @@ static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt)
 			goto add_sync_ep;
 		}
 	}
+	if (is_playback &&
+	    attr == USB_ENDPOINT_SYNC_ASYNC &&
+	    altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC &&
+	    altsd->bInterfaceProtocol == 2 &&
+	    altsd->bNumEndpoints == 1 &&
+	    USB_ID_VENDOR(subs->stream->chip->usb_id) == 0x0582 /* Roland */ &&
+	    search_roland_implicit_fb(dev, altsd->bInterfaceNumber + 1,
+				      altsd->bAlternateSetting,
+				      &alts, &ep) >= 0) {
+		implicit_fb = 1;
+		goto add_sync_ep;
+	}
 
 	if (((is_playback && attr == USB_ENDPOINT_SYNC_ASYNC) ||
 	     (!is_playback && attr == USB_ENDPOINT_SYNC_ADAPTIVE)) &&