linux-stable/sound
Mark Brown bf3a9e137c ASoC: Add weak routes for sidetone style paths
Normally DAPM will power up any connected audio path. This is not ideal
for sidetone paths as with sidetone paths the audio path is not wanted in
itself, it is only desired if the two paths it provides a sidetone between
are both active. If the sidetone path causes a power up then it can be
hard to minimise pops as we first power up either the sidetone or the main
output path and then power the other, with the second power up potentially
introducing a DC offset.

Address this by introducing the concept of a weak path. If a path is marked
as weak then DAPM will ignore that path when walking the graph, though all
the relevant controls are still available to the application layer to allow
these paths to be configured.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
2011-06-13 18:59:33 +01:00
..
aoa Revert wrong fixes for common misspellings 2011-04-26 23:31:11 -07:00
arm Merge branch 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6 into for-2.6.39 2011-04-03 19:28:29 +09:00
atmel ALSA: fix invalid hardware.h include in ac97c for AVR32 architecture 2011-01-25 18:07:10 +01:00
core ALSA: core: remove unused variables. 2011-05-26 08:19:04 +02:00
drivers Fix common misspellings 2011-03-31 11:26:23 -03:00
firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 2011-05-23 08:52:38 -07:00
i2c ALSA: tea575x: use better card and bus names 2011-05-13 19:43:24 +02:00
isa Fix common misspellings 2011-03-31 11:26:23 -03:00
mips
oss SOUND: OSS: Remove Au1550 driver. 2011-05-20 11:33:39 +02:00
parisc
pci ALSA: fix hda AZX_DCAPS_NO_TCSEL quirk check in driver_caps 2011-05-27 19:45:28 -07:00
pcmcia pcmcia: Make struct pcmcia_device_id const, sound drivers edition 2011-05-11 10:48:57 +02:00
ppc Merge branch 'topic/misc' into for-linus 2011-05-22 10:01:29 +02:00
sh sound: sh: ctrl_in/outX to __raw_read/writeX conversion. 2010-10-27 15:53:50 +09:00
soc ASoC: Add weak routes for sidetone style paths 2011-06-13 18:59:33 +01:00
sparc dt/sound: Eliminate users of of_platform_{,un}register_driver 2011-02-28 13:22:44 -07:00
spi ALSA: AT73C213: Rectify misleading comment. 2010-11-11 02:03:29 +01:00
synth ALSA: emux: Add trivial compat ioctl handler 2010-09-14 16:18:11 +02:00
usb ALSA: usb-audio: more control quirks for M-Audio FastTrack devices 2011-05-25 09:37:08 +02:00
ac97_bus.c sound: Fixed line limit issue in sound/ac97_bus.c 2010-12-06 16:09:49 +01:00
Kconfig ALSA: add LaCie FireWire Speakers/Griffin FireWave Surround driver 2011-03-15 08:42:22 +01:00
last.c
Makefile ALSA: add LaCie FireWire Speakers/Griffin FireWave Surround driver 2011-03-15 08:42:22 +01:00
sound_core.c sound: Use sound_register_*() for additional OSS minor devices 2011-03-09 20:10:37 +01:00
sound_firmware.c sound: read i_size with i_size_read() 2011-03-18 15:14:57 +01:00