Commit graph

9,487 commits

Author SHA1 Message Date
Jassi Brar
51c6ab1306 ASoC: S3C: I2Sv2: Reject immidiate register value
Towards generalizing CPU driver interface, do not accept direct field
values for the BCLK and RCLK.
The machine driver should simply request the FS-multiple and not provide
the value to be set in divide field of IISMOD.

[Confirmed by Jassi that no existing machine drivers are affected --
broonie]

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-10 14:12:58 +00:00
Jassi Brar
fa6231e173 ASoC: S3C64XX: I2S: Move RATE and FMT defines to header
In order for the RATE and FMT defines to be reuseable in future by the
i2sv4 driver, move the MACROs out to the header file.

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-10 11:59:57 +00:00
Jassi Brar
87b7eb266c ASoC: s3c64xx-i2s remove unncessary headers
s3c64xx-i2s remove unncessary headers

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-10 11:59:56 +00:00
Jassi Brar
b568f84b30 ASoC: s3c-i2s-v2 remove unnecessary headers
s3c-i2s-v2 remove unnecessary headers

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-10 11:59:56 +00:00
Jassi Brar
4793d6afbd ASoC: S3C: I2Sv2: Unify clock source IDs
Rather than having the multiple definitions of the same clocks,
define them in one common place and refer by SoC specific names.

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-10 11:59:56 +00:00
Jassi Brar
0822661478 ASoC: S3C: I2Sv2: Add missing semicolon
Add missing semicolon after s3c2412_i2s_delay

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-10 11:59:56 +00:00
Barry Song
f0d10f5aa3 ASoC: bf5xx-sport: use common SPORT code for MMR info
No point in duplicating this structure layout in each driver.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-10 11:59:56 +00:00
Cliff Cai
4b527e2900 ASoC: SSM2602: add SND control for mic boost2 and default it to off
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-10 11:59:56 +00:00
Chaithrika U S
8d43d1bc81 ASoC: DaVinci: Add hw_param callback for S/PDIF DIT link
On TI DM6467 EVM, S/PDIF DIT codec fails to open as it is unable to install
hardware params. This dummy codec has no set_fmt and set_sysclk implementations
and calls from the application to these functions cause errors. This patch adds
a new hardware params callback function for S/PDIF transciever codec.

Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Tested-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-10 11:59:56 +00:00
Daniel Glöckner
55c63bd256 ALSA: provide a more useful get_unmapped_area handler for pcm
Shared memory mappings on nommu machines require a get_unmapped_area
file operation that suggests an address for the mapping. The current
implementation returns 0 and thus forces the driver to implement an
mmap handler that fixes up the start and end address of the vma.

This patch returns the address of the dma buffer, so it should work
out of the box for all drivers that use the snd_pcm_runtime->dma_area
pointer.

Addresses for mapping the status and control pages are returned as
well, but to make those work the conditional compilation of
snd_pcm_mmap_{status,control} would need to be revised.

URL: http://thread.gmane.org/gmane.linux.alsa.devel/61230
Signed-off-by: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-10 09:05:03 +01:00
Takashi Iwai
0e49887703 Merge branch 'topic/misc' into for-linus 2010-03-10 09:01:30 +01:00
Takashi Iwai
7d39cf6224 Merge branch 'topic/hda' into for-linus 2010-03-10 09:01:25 +01:00
Ralf Gerbig
ecd216260f ALSA: hda - Sound MSI fallout on a Asus mobo NVIDIA MCP55
without the following patch audio ssttuutteerrs on
ASUS M2N32-SLI PREMIUM ACPI BIOS Revision 1304
the sound device is:
00:0e.1 Audio device: nVidia Corporation MCP55 High Definition Audio (rev a2)
worked with 2.6.32

Signed-off-by: Ralf Gerbig <rge@quengel.org>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-09 18:29:01 +01:00
Kuninori Morimoto
3a9d620278 ASoC: da7210: Add 8/12/16/24/32/48/96 kHz rate support
Signed-off-by: Phil Edworthy <Phil.Edworthy@renesas.com>
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-09 15:21:16 +00:00
Russell King
988addf82e Merge branch 'origin' into devel-stable
Conflicts:
	arch/arm/mach-mx2/devices.c
	arch/arm/mach-mx2/devices.h
	sound/soc/pxa/pxa-ssp.c
2010-03-08 20:21:04 +00:00
Randy Dunlap
89c0ac7cab sound: fix opti92x-ad1848 build
Fix 'else' placement in ifdef block so that build succeeds:

sound/isa/opti9xx/opti92x-ad1848.c:221: error: 'else' without a previous 'if'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-08 18:36:17 +01:00
Russell King
004c1c7096 Merge branch 'for-rmk/samsung6' of git://git.fluff.org/bjdooks/linux into devel-stable 2010-03-08 16:08:46 +00:00
Jiri Kosina
318ae2edc3 Merge branch 'for-next' into for-linus
Conflicts:
	Documentation/filesystems/proc.txt
	arch/arm/mach-u300/include/mach/debug-macro.S
	drivers/net/qlge/qlge_ethtool.c
	drivers/net/qlge/qlge_main.c
	drivers/net/typhoon.c
2010-03-08 16:55:37 +01:00
Linus Torvalds
56b78921c3 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (26 commits)
  ALSA: hdmi - show debug message on changing audio infoframe
  ALSA: hdmi - merge common code for intelhdmi and nvhdmi
  ALSA: hda - Add ASRock mobo to MSI blacklist
  ALSA: hda: uninitialized variable fix
  ALSA: hda: Use LPIB for a Biostar Microtech board
  ALSA: usb/audio.h: Fix field order
  ALSA: fix jazz16 compile (udelay)
  ALSA: hda: Use LPIB for Dell Latitude 131L
  ALSA: hda - Build hda_eld into snd-hda-codec module
  ALSA: hda - Support NVIDIA MCP89 and GT21x hdmi audio
  ALSA: hda - Support max codecs to 8 for nvidia hda controller
  ALSA: riptide: clean up while loop
  ALSA: usbaudio - remove debug "SAMPLE BYTES" printk line
  ALSA: timer - pass real event in snd_timer_notify1() to instance callback
  ALSA: oxygen: change || to &&
  ALSA: opti92x: use PnP data to select Master Control port
  ASoC: fix ak4104 register array access
  ASoC: soc_pcm_open: Add missing bailout tag
  ALSA: usbaudio: Fix wrong bitrate for Creative Creative VF0470 Live Cam
  ALSA: ua101: removing debugging code
  ...
2010-03-08 07:34:26 -08:00
Takashi Iwai
5311114d48 ALSA: hda - Fix input source elements of secondary ADCs on Realtek
Since alc_auto_create_input_ctls() doesn't set the elements for the
secondary ADCs, "Input Source" elemtns for these also get empty, resulting
in buggy outputs of alsactl like:
	control.14 {
		comment.access 'read write'
		comment.type ENUMERATED
		comment.count 1
		iface MIXER
		name 'Input Source'
		index 1
		value 0
	}

This patch fixes alc_mux_enum_*() (and others) to fall back to the
first entry if the secondary input mux is empty.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: <stable@kernel.org>
2010-03-08 12:17:49 +01:00
Takashi Iwai
50ae0aa8f5 ALSA: hda - Fix wrong model range check for ALC268
Fix a wrong value passed to snd_hda_check_board_codec_sid_config() as
the upper-limit in parse_alc268(), so that any wrong value can't be
passed.

So far, no bogus value was set in the quirk entries, so this won't give
any behavioral changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-08 12:12:41 +01:00
Takashi Iwai
a3087ae970 Merge branch 'topic/misc' into for-linus 2010-03-08 09:35:50 +01:00
Takashi Iwai
f0f20a1698 Merge branch 'topic/asoc' into for-linus 2010-03-08 09:35:48 +01:00
Takashi Iwai
f1cf9a666d Merge branch 'topic/hda' into for-linus 2010-03-08 09:35:43 +01:00
Wu Fengguang
2abbf4391f ALSA: hdmi - show debug message on changing audio infoframe
Also change printk level for the two others.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-08 08:21:25 +01:00
Wu Fengguang
079d88ccc3 ALSA: hdmi - merge common code for intelhdmi and nvhdmi
Create patch_hdmi.c to hold common code from intelhdmi and nvhdmi.

For now the patch_hdmi.c file is simply included by patch_intelhdmi.c
and patch_nvhdmi.c, and does not represent a real codec.

There are no behavior changes to intelhdmi. However nvhdmi made several
changes when copying code out of intelhdmi, which are all reverted in
this patch. Wei Ni confirmed that the reverted code actually works fine.

Tested-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-08 08:21:08 +01:00
Linus Torvalds
6dc3eb5c1f Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (66 commits)
  mfd: Fix ucb1x00 build failure for collie_defconfig
  mfd: Fix lpc_sch related depends/selects, fix build error
  gpio: Fix sch_gpio warning
  gpio: add Intel SCH GPIO controller driver
  i2c: convert i2c-isch to platform_device
  mfd: Use completion interrupt for WM831x AUXADC
  mfd: Use completion interrupt for WM835x AUXADC
  mfd: Introduce remove_script function for twl4030
  mfd/mmc: SDHI Kconfig update
  mfd: sh_mobile_sdhi MMC_CAP_MMC_HIGHSPEED support
  gpiolib: Force wm831x GPIOs into GPIO mode when requested
  mfd: Add WM831x revision B support
  gpiolib: Correct debugfs display of WM831x GPIO inversion
  gpiolib: Actually set output state in wm831x_gpio_direction_output()
  tmio_mmc: Balance cell enable()/disable() calls
  tmio_mmc: Remove const from platform data V3
  tmio_mmc: Use 100ms mmc_detect_change() delay
  tmio_mmc: Add MMC_CAP_MMC_HIGHSPEED support V2
  tmio_mmc: Keep card-detect interrupts enabled
  mfd: Add twl6030 base addr for ID0, ID1, ID2
  ...
2010-03-07 15:56:04 -08:00
Linus Torvalds
4a31c08d2f Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (26 commits)
  sh: Convert sh to use read/update_persistent_clock
  sh: Move PMB debugfs entry initialization to later stage
  sh: Fix up flush_cache_vmap() on SMP.
  sh: fix up MMU reset with variable PMB mapping sizes.
  sh: establish PMB mappings for NUMA nodes.
  sh: check for existing mappings for bolted PMB entries.
  sh: fixed virt/phys mapping helpers for PMB.
  sh: make pmb iomapping configurable.
  sh: reworked dynamic PMB mapping.
  sh: Fix up cpumask_of_pcibus() for the NUMA build.
  serial: sh-sci: Tidy up build warnings.
  sh: Fix up ctrl_read/write stragglers in migor setup.
  serial: sh-sci: Add DMA support.
  dmaengine: shdma: extend .device_terminate_all() to record partial transfer
  sh: merge sh7722 and sh7724 DMA register definitions
  sh: activate runtime PM for dmaengine on sh7722 and sh7724
  dmaengine: shdma: add runtime PM support.
  dmaengine: shdma: separate DMA headers.
  dmaengine: shdma: convert to platform device resources
  dmaengine: shdma: fix DMA error handling.
  ...
2010-03-07 15:47:19 -08:00
Mark Brown
59f25070df mfd: Update WM8350 drivers for changed interrupt numbers
The headphone detect and charger are using the IRQ numbers so need
to take account of irq_base with the genirq conversion. I obviously
picked the wrong system for initial testing.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07 22:16:58 +01:00
Mark Brown
f99344fc69 mfd: Add a data argument to the WM8350 IRQ free function
To better match genirq.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07 22:16:56 +01:00
Michele Ballabio
4193d13b2c ALSA: hda - Add ASRock mobo to MSI blacklist
This avoids a lockup at boot.

Signed-off-by: Michele Ballabio <barra_cuda@katamail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-07 09:29:39 +01:00
Takashi Iwai
7484399fe2 Merge branch 'fix/hda' into topic/hda 2010-03-07 09:29:29 +01:00
Akinobu Mita
984b3f5746 bitops: rename for_each_bit() to for_each_set_bit()
Rename for_each_bit to for_each_set_bit in the kernel source tree.  To
permit for_each_clear_bit(), should that ever be added.

The patch includes a macro to map the old for_each_bit() onto the new
for_each_set_bit().  This is a (very) temporary thing to ease the migration.

[akpm@linux-foundation.org: add temporary for_each_bit()]
Suggested-by: Alexey Dobriyan <adobriyan@gmail.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Artem Bityutskiy <dedekind@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-06 11:26:23 -08:00
Mark Brown
692247196d ASoC: Improve DAPM pop_wait delays
Currently during pop/click debug we're inserting a delay both after
every log message we generate and at explicit points in the sequence,
slowing things down even further than they need to be especially when
many writes get coalesced by the sequence generation code.

Remove the per-printk delay and ensure that we have explicit delays
where we say we want them.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-03-05 16:43:05 +00:00
Mark Brown
bc6552f471 ASoC: Add 16/16 registers to soc-cache
I2C only at the minute.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-03-05 16:42:06 +00:00
Frederik Deweerdt
d2db09b87e ALSA: hda: uninitialized variable fix
Commit eaa9b3a748 introduced the following
uninitialized warning:

	sound/pci/hda/patch_realtek.c: In function 'set_capture_mixer':
	sound/pci/hda/patch_realtek.c:4928: warning: 'pin' is used uninitialized in this function
	sound/pci/hda/patch_realtek.c:4918: note: 'pin' was declared here

It appears indeed that 'pin' needs to be initialized to 0.

Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05 16:40:26 +01:00
Daniel T Chen
0321b69569 ALSA: hda: Use LPIB for a Biostar Microtech board
BugLink: https://launchpad.net/bugs/523953

The OR has verified that position_fix=1 is necessary to work around
errors on his machine.

Reported-by: MMarking
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05 16:06:01 +01:00
Takashi Iwai
36e632d61a Merge branch 'topic/misc' into topic/usb 2010-03-05 08:23:32 +01:00
Daniel Mack
767d75ad1c ALSA: usb-audio: add support for samplerate setting on v2 devices
Sample rate setting is done with a 4-byte long class request that
addresses the interface.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05 08:19:17 +01:00
Clemens Ladisch
29088fef3e ALSA: usb-audio: support multiple formats with audio class v2 devices
Change the parser to correctly handle v2 descriptors with multiple
format bits set.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05 08:18:54 +01:00
Clemens Ladisch
015eb0b081 ALSA: usb-audio: use a format bitmask per alternate setting
In preparation for USB audio 2.0 support, change the audioformat
structure so that it uses a bitmask to specify possible formats.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05 08:18:32 +01:00
Clemens Ladisch
e11b4e0e4f ALSA: usb-audio: rename substream format field to altset_idx
The snd_usb_substream::format field actually contains the index of the
current alternate setting, so rename it to altset_idx to avoid
confusion.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05 08:18:07 +01:00
Daniel Mack
e5779998bf ALSA: usb-audio: refactor code
Clean up the usb audio driver by factoring out a lot of functions to
separate files. Code for procfs, quirks, urbs, format parsers etc all
got a new home now.

Moved almost all special quirk handling to quirks.c and introduced new
generic functions to handle them, so the exceptions do not pollute the
whole driver.

Renamed usbaudio.c to card.c because this is what it actually does now.
Renamed usbmidi.c to midi.c for namespace clarity.
Removed more things from usbaudio.h.

The non-standard drivers were adopted accordingly.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05 08:17:14 +01:00
Daniel Mack
3e1aebef6f ALSA: usb-audio: header file cleanups
Rename snd-usb-lib to snd-usbmidi-lib as MIDI functions are the only
thing it actually contains. Introduce a new header file to only declare
these functions.

Introduced usbmixer.h for all functions exported by usbmixer.c.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05 08:16:47 +01:00
Daniel Mack
bc700ab140 ALSA: usb-audio: move ua101 driver
As part of the USB audio code cleanup, move the non-standard ua101
driver out of the way.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05 08:15:36 +01:00
Meelis Roos
50152dfaa7 ALSA: fix jazz16 compile (udelay)
While trying to compile jazz16 isa sound driver on alpha (2.6.33+git), I
found a compile failure in jazz16.c (udelay is unknown). Fix it by
including delay.h.

Signed-foo-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05 08:13:20 +01:00
Mark Brown
facf92695d ASoC: Fix S3C64xx IIS driver for Samsung header reorg
The reorgs of the Samsung headers have moved the GPIO bank definitions
from plat/ to mach/ - the IIS driver needs to be updated to take care
of this.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-03-04 23:27:23 +00:00
Daniel T Chen
9919c7619c ALSA: hda: Use LPIB for Dell Latitude 131L
BugLink: https://launchpad.net/bugs/530346

The OR has verified that position_fix=1 is necessary to work around
errors on his machine.

Reported-by: Tom Louwrier
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-04 16:32:01 +01:00
Takashi Iwai
dd74b46535 ALSA: hda - Build hda_eld into snd-hda-codec module
Now two modules require hda_eld.o, so we need to put it to the common
place instead of building into two individual modules.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-04 16:05:24 +01:00
Mark Brown
1ca7578043 ASoC: Add delay information for Samsung IISv2 DAIs
Report the current FIFO depth when delay is queried. The FIFO is only
16 frames deep so the latency will be at most a couple of miliseconds
(and we tend to end up reporting zero most of the time) but it may
help some applications.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-03-04 14:57:09 +00:00