linux/sound
Mark Brown 58ba9b2545 ASoC: Allow drivers to specify how many bits are significant on a DAI
Most devices accept data in formats that don't correspond directly to
their internal format. ALSA allows us to set a msbits constraint which
tells userspace about this in case it finds it useful (for example, in
order to avoid wasting effort dithering bits that will be ignored when
raising the sample size of data) so provide a mechanism for drivers to
specify the number of bits that are actually significant on a DAI and
add the appropriate constraints along with all the others.

This is done slightly awkwardly as the constraint is specified per sample
size - we loop over every possible sample size, including ones that the
device doesn't support and including ones that have fewer bits than are
actually used, but this is harmless as the upper layers do the right thing
in these cases.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
2012-01-20 13:58:29 +00:00
..
aoa Merge branch 'master' into for-next 2011-11-13 20:55:53 +01:00
arm Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound 2012-01-12 08:00:30 -08:00
atmel Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-01-17 18:40:24 -08:00
core Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound 2012-01-17 10:48:13 -08:00
drivers ALSA: module_param: make bool parameters really bool 2011-12-19 10:34:41 +01:00
firewire Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
i2c sound: Add module.h to the previously silent sound users 2011-10-31 19:31:21 -04:00
isa ALSA: module_param: make bool parameters really bool 2011-12-19 10:34:41 +01:00
mips ALSA: Convert mips directory to module_platform_driver 2011-11-24 13:03:02 +01:00
oss Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound 2012-01-12 08:00:30 -08:00
parisc
pci Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound 2012-01-17 10:48:13 -08:00
pcmcia ALSA: module_param: make bool parameters really bool 2011-12-19 10:34:41 +01:00
ppc Merge branch 'topic/misc' into for-linus 2012-01-12 09:59:14 +01:00
sh ALSA: module_param: make bool parameters really bool 2011-12-19 10:34:41 +01:00
soc ASoC: Allow drivers to specify how many bits are significant on a DAI 2012-01-20 13:58:29 +00:00
sparc ALSA: module_param: make bool parameters really bool 2011-12-19 10:34:41 +01:00
spi
synth sound: Add export.h for THIS_MODULE/EXPORT_SYMBOL where needed 2011-10-31 19:31:22 -04:00
usb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound 2012-01-12 08:00:30 -08:00
ac97_bus.c
Kconfig um: switch to use of drivers/Kconfig 2011-11-02 14:15:41 +01:00
last.c
Makefile
sound_core.c switch device_get_devnode() and ->devnode() to umode_t * 2012-01-03 22:54:55 -05:00
sound_firmware.c