This series proposes following enhancements to audio-graph card driver. * Support multiple instances of a component. * Support open platforms with empty Codec endpoint. * Identify no-pcm DPCM DAI links which can be used in BE<->BE connections. * Add new compatible to support DPCM based DAI chaining.
This pushes DT support for Tegra210 based platforms which uses audio-graph card and above enhancements.
The series is based on following references where DPCM usgae for Tegra Audio and simple-card driver proposal were discussed. * https://lkml.org/lkml/2020/4/30/519 (DPCM for Tegra) * https://lkml.org/lkml/2020/6/27/4 (simple-card driver)
Changelog =========
v1 -> v2 -------- * Re-organized ports/endpoints description for ADMAIF and XBAR. Updated DT patches accordingly. * After above change, multiple Codec endpoint support is not required and hence dropped for now. This will be considered separately if at all required in future. * Re-ordered patches in the series.
Sameer Pujar (9): ASoC: soc-core: Fix component name_prefix parsing ASoC: audio-graph: Use of_node and DAI for DPCM DAI link names ASoC: audio-graph: Identify 'no_pcm' DAI links for DPCM ASoC: soc-pcm: Get all BEs along DAPM path ASoC: dt-bindings: audio-graph-card: Support for component chaining ASoC: audio-graph: Add support for component chaining ASoC: audio-graph: Support empty Codec endpoint arm64: tegra: Audio graph header for Tegra210 arm64: tegra: Audio graph sound card for Jetson Nano and TX1
.../devicetree/bindings/sound/audio-graph-card.txt | 1 + .../boot/dts/nvidia/tegra210-audio-graph.dtsi | 141 +++++++++++++ arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts | 217 +++++++++++++++++++++ arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 122 ++++++++++++ include/sound/soc.h | 1 + sound/soc/generic/audio-graph-card.c | 69 ++++++- sound/soc/soc-core.c | 3 +- sound/soc/soc-pcm.c | 3 +- 8 files changed, 545 insertions(+), 12 deletions(-) create mode 100644 arch/arm64/boot/dts/nvidia/tegra210-audio-graph.dtsi