diff options
| author | Sameer Pujar <spujar@nvidia.com> | 2021-01-19 14:58:13 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-01-19 14:09:21 +0000 |
| commit | 202e2f7745437aa5b694de92cbd30bb43b23fbed (patch) | |
| tree | cbf299a22af80faca5e807e37b3a880cb3074e3c /sound/soc/tegra/Kconfig | |
| parent | a9f22c03a8ac5d21ce7a9b9307d9654c963a1f9c (diff) | |
ASoC: tegra: Add audio graph based card driver
Add Tegra audio machine driver which is based on generic audio graph card
driver. It re-uses most of the common stuff from audio graph driver and
uses the same DT binding. Required Tegra specific customizations are done
in the driver and additional DT bindings are required for clock handling.
Details on the customizations done:
- Update PLL rates at runtime: Tegra HW supports multiple sample rates
(multiples of 8x and 11.025x) and both of these groups require different
PLL rates. Hence there is a requirement to update this at runtime.
This is achieved by providing a custom 'snd_soc_ops' and in hw_param()
callback PLL rate is updated as per the sample rate.
- Internal structure 'tegra_audio_graph_data' is used to maintain clock
handles of PLL.
- The 'force_dpcm' flag is set to use DPCM for all DAI links.
- The 'component_chaining' flag is set to use DPCM with component model.
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/1611048496-24650-4-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 | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig index a62cc87551ac..6dc83ad8607a 100644 --- a/sound/soc/tegra/Kconfig +++ b/sound/soc/tegra/Kconfig @@ -117,6 +117,15 @@ config SND_SOC_TEGRA210_ADMAIF channel. Buffer size is configurable for each ADMAIIF channel. Say Y or M if you want to add support for Tegra210 ADMAIF module. +config SND_SOC_TEGRA_AUDIO_GRAPH_CARD + tristate "Audio Graph Card based Tegra driver" + depends on SND_AUDIO_GRAPH_CARD + help + Config to enable Tegra audio machine driver based on generic + audio graph driver. It is a thin driver written to customize + few things for Tegra audio. Most of the code is re-used from + audio graph driver and the same DT bindings are used. + config SND_SOC_TEGRA_RT5640 tristate "SoC Audio support for Tegra boards using an RT5640 codec" depends on SND_SOC_TEGRA && I2C && GPIOLIB |