linux-stable/sound
Matthias Kaehlcke 7fb59e940f
ASoC: codecs: dmic: Make number of channels configurable
The DMIC DAI driver specifies a number of 1 to 8 channels for each DAI.
The actual number of mics can currently not be configured in the device
tree or audio glue, but is derived from the min/max channels of the CPU
and codec DAI. A typical CPU DAI has two or more channels, in consequence
a single mic is treated as a stereo/multi channel device, even though
only one channel carries audio data.

This change adds the option to specify the number of used DMIC channels
in the device tree. When specified this value overwrites the default
channels_max value of 8 in the snd_soc_dai_driver struct of the codec.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-01-09 16:46:24 +00:00
..
ac97 ALSA: ac97: add an ac97 bus 2017-09-04 18:24:56 +01:00
aoa License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
arm Merge remote-tracking branches 'asoc/topic/ac97', 'asoc/topic/ac97-mfd', 'asoc/topic/amd' and 'asoc/topic/arizona-mfd' into asoc-next 2017-11-10 21:31:02 +00:00
atmel ASoC: Updates for v4.14 2017-09-04 14:50:49 +02:00
core ALSA: hda - Fix yet remaining issue with vmaster 0dB initialization 2017-11-22 12:34:56 +01:00
drivers ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
firewire Merge branch 'linus' into locking/core, to resolve conflicts 2017-11-07 10:32:44 +01:00
hda ALSA: hda: Fix too short HDMI/DP chmap reporting 2017-11-17 12:20:37 +01:00
i2c ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
isa ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
mips ALSA: mips: constify snd_pcm_ops structures 2017-08-19 11:02:18 +02:00
oss Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
parisc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci ALSA: hda: Add Raven PCI ID 2017-11-23 10:17:59 +01:00
pcmcia ALSA: pcmcia: constify snd_pcm_ops structures 2017-08-19 11:02:21 +02:00
ppc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sh ALSA: sh: aica: Convert timers to use timer_setup() 2017-10-05 08:20:17 +02:00
soc ASoC: codecs: dmic: Make number of channels configurable 2018-01-09 16:46:24 +00:00
sparc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
spi License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
synth ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
usb Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-25 08:37:16 -10:00
x86 main drm pull for v4.13 2017-07-09 18:48:37 -07:00
ac97_bus.c
Kconfig ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
last.c
Makefile ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
sound_core.c