Hi Mark, Morimoto-san,

Summary of changes:

• Support multiple instances of a component. For example there can be multiple I2S devices which can use the same component driver.

• Support open platforms with empty Codec endpoint. Customers can plug their own HW and can populate codec endpoint.

• In a component model there can be many components which can be connected togethe. In such cases Identify no-pcm DPCM DAI links which can be used in BE<->BE connections.

• Add Tegra audio graph driver which is based on generic audio graph driver and specific customizations are done in Tegra driver.

• 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

v3 -> v4

• Added new patches to convert graph.txt and audio-graph-card.txt to corresponding json-schema files. Later these references are used in Tegra audio graph schema.

• AHUB component binding docs are updated to reflect the usage of ports/port/endpoint

• More common stuff is moved into graph_parse_of() and this is used by both generic and Tegra audio graph.

• DT binding for Tegra audio graph is updated to included "ports { }"

• As per the suggestion 'void *data' member is dropped from 'asoc_simple_priv' and instead container method is used to maintain required custom data internal to Tegra audio graph.

v2 -> v3

• Dropped new compatible addition in generic graph driver after reviewing it with Morimoto-san. Instead added Tegra audio graph driver and new compatibles are added in the same.
• Added new patches to expose new members for customization in audio graph driver.
• Added new patch for Tegra audio graph driver and related documentation.
• Minor change in below commit where mutex version of helper is used "ASoC: audio-graph: Identify 'no_pcm' DAI links for DPCM"
• DT binding is updated to use the newly exposed compatibles
• No changes in other patches

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 (15): ASoC: soc-core: Fix component name_prefix parsing ASoC: soc-pcm: Get all BEs along DAPM path ASoC: audio-graph: Use of_node and DAI for DPCM DAI link names ASoC: audio-graph: Identify 'no_pcm' DAI links for DPCM ASoC: audio-graph: Support empty Codec endpoint ASoC: audio-graph: Expose new members for asoc_simple_priv ASoC: audio-graph: Expose helpers from audio graph

Would you suggest to keep above in a separate series and thus not blocked by below doc updates? If so do I need to resend above in a next revision or if these are good to be picked up?

Documentation: of: Convert graph bindings to json-schema ASoC: dt-bindings: audio-graph: Convert bindings to json-schema ASoC: dt-bindings: tegra: Add graph bindings ASoC: dt-bindings: tegra: Add json-schema for Tegra audio graph card

Documentation patches in the series have some dependency over Morimoto-san's audio-graph series https://patchwork.kernel.org/project/alsa-devel/list/?series=372759. I will update doc related patches once dependency is merged.

ASoC: tegra: Add audio graph based card driver arm64: defconfig: Enable Tegra audio graph card driver arm64: tegra: Audio graph header for Tegra210 arm64: tegra: Audio graph sound card for Jetson Nano and TX1