Re: [PATCH v4 00/15] Audio graph card updates and usage with Tegra210 audio

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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



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