linux/sound
Sameer Pujar 8c8ff982e9
ASoC: tegra: Add Tegra210 based DMIC driver
The Digital MIC (DMIC) Controller is used to interface with Pulse Density
Modulation (PDM) input devices. The DMIC controller implements a converter
to convert PDM signals to Pulse Code Modulation (PCM) signals. From signal
flow perspective, the DMIC can be viewed as a PDM receiver.

This patch registers DMIC component with ASoC framework. The component
driver exposes DAPM widgets, routes and kcontrols for the device. The DAI
driver exposes DMIC interfaces, which can be used to connect different
components in the ASoC layer. Makefile and Kconfig support is added to
allow to build the driver. The DMIC devices can be enabled in the DT via
"nvidia,tegra210-dmic" compatible string. This driver can be used for
Tegra186 and Tegra194 chips as well.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1595134890-16470-4-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-20 15:10:22 +01:00
..
ac97
aoa treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
arm ASoC: arm: use asoc_rtd_to_cpu() / asoc_rtd_to_codec() macro for DAI pointer 2020-03-27 14:44:56 +00:00
atmel
core sound fixes for 5.8-rc1 2020-06-11 12:38:11 -07:00
drivers powerpc updates for 5.8 2020-06-05 12:39:30 -07:00
firewire Merge branch 'for-linus' into for-next 2020-05-28 10:08:50 +02:00
hda Merge branch 'for-5.8' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-5.9 2020-06-29 20:47:01 +01:00
i2c
isa ALSA: es1688: Add the missed snd_card_free() 2020-06-03 11:40:55 +02:00
mips
oss
parisc
pci ALSA: hda: fix snd_hda_codec_cleanup() documentation 2020-07-16 20:59:13 +01:00
pcmcia
ppc powerpc updates for 5.8 2020-06-05 12:39:30 -07:00
sh
soc ASoC: tegra: Add Tegra210 based DMIC driver 2020-07-20 15:10:22 +01:00
sparc
spi
synth
usb ALSA: usb-audio: Manage auto-pm of all bundled interfaces 2020-06-08 19:34:49 +02:00
x86 treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
xen
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c