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| author | Sameer Pujar <spujar@nvidia.com> | 2020-07-19 10:31:22 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-07-20 15:10:22 +0100 |
| commit | 8c8ff982e9e2b2eb9255fc393f938915b0ddc127 (patch) | |
| tree | 22ada06356f4c17f9d47af83f3ffe3534576a822 /sound/soc/tegra/Kconfig | |
| parent | 1c3b89fb7e4a78ddcd627e3f218a216e2136ae9b (diff) | |
| download | linux-8c8ff982e9e2b2eb9255fc393f938915b0ddc127.tar.bz2 | |
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>
Diffstat (limited to 'sound/soc/tegra/Kconfig')
| -rw-r--r-- | sound/soc/tegra/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig index addadc827b91..2addc9ca82e5 100644 --- a/sound/soc/tegra/Kconfig +++ b/sound/soc/tegra/Kconfig @@ -62,6 +62,17 @@ config SND_SOC_TEGRA30_I2S Tegra30 I2S interface. You will also need to select the individual machine drivers to support below. +config SND_SOC_TEGRA210_DMIC + tristate "Tegra210 DMIC module" + depends on SND_SOC_TEGRA + help + Config to enable the Digital MIC (DMIC) controller which 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. This can be viewed as a + PDM receiver. + Say Y or M if you want to add support for Tegra210 DMIC module. + config SND_SOC_TEGRA_RT5640 tristate "SoC Audio support for Tegra boards using an RT5640 codec" depends on SND_SOC_TEGRA && I2C && GPIOLIB |