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

From: Sameer Pujar
Date: Fri Oct 16 2020 - 10:43:30 EST


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
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
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

Documentation/devicetree/bindings/graph.txt | 128 -----
Documentation/devicetree/bindings/graph.yaml | 170 +++++++
.../devicetree/bindings/sound/audio-graph-card.txt | 337 -------------
.../bindings/sound/audio-graph-card.yaml | 548 +++++++++++++++++++++
.../sound/nvidia,tegra-audio-graph-card.yaml | 158 ++++++
.../bindings/sound/nvidia,tegra186-dspk.yaml | 7 +
.../bindings/sound/nvidia,tegra210-admaif.yaml | 7 +
.../bindings/sound/nvidia,tegra210-ahub.yaml | 7 +
.../bindings/sound/nvidia,tegra210-dmic.yaml | 7 +
.../bindings/sound/nvidia,tegra210-i2s.yaml | 7 +
.../boot/dts/nvidia/tegra210-audio-graph.dtsi | 153 ++++++
arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts | 262 ++++++++++
arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 146 ++++++
arch/arm64/configs/defconfig | 1 +
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 +-
sound/soc/tegra/Kconfig | 9 +
sound/soc/tegra/Makefile | 2 +
sound/soc/tegra/tegra_audio_graph_card.c | 255 ++++++++++
23 files changed, 1882 insertions(+), 523 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/graph.txt
create mode 100644 Documentation/devicetree/bindings/graph.yaml
delete mode 100644 Documentation/devicetree/bindings/sound/audio-graph-card.txt
create mode 100644 Documentation/devicetree/bindings/sound/audio-graph-card.yaml
create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra-audio-graph-card.yaml
create mode 100644 arch/arm64/boot/dts/nvidia/tegra210-audio-graph.dtsi
create mode 100644 include/sound/graph_card.h
create mode 100644 sound/soc/tegra/tegra_audio_graph_card.c

--
2.7.4