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Subject[PATCH v5 0/7] Audio Graph Updates
Date
This series is a prepraration for using generic graph driver for Tegra210
audio. Tegra audio graph series will be sent in a separate series because
it has some dependency over other series for documentation work. This
series can focus on the generic ASoC driver updates. Below are the summary
of changes done.

* 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 together. In such cases Identify no-pcm DPCM DAI links which
can be used in BE<->BE connections.

* Expose structures or helpers to be re-used by other similar graph
drivers.

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
=========

v4 -> v5
--------
* No changes in the core/audio-graph driver patches which are
part of the current series.
* Dropped Tegra audio patches and doc patches. This will be
sent separately once the doc depdendencies are resolved.

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 (7):
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

include/sound/graph_card.h | 16 ++++
include/sound/simple_card_utils.h | 3 +
include/sound/soc.h | 1 +
sound/soc/generic/audio-graph-card.c | 175 ++++++++++++++++++++++++-----------
sound/soc/soc-core.c | 3 +-
sound/soc/soc-pcm.c | 3 +-
6 files changed, 143 insertions(+), 58 deletions(-)
create mode 100644 include/sound/graph_card.h

--
2.7.4

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