linux-kernel - [PATCH 00/10] Audio graph card updates and usage with Tegra210 audio

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Date:   Sun, 19 Jul 2020 10:40:07 +0530
From:   Sameer Pujar <spujar@...dia.com>
To:     <broonie@...nel.org>, <perex@...ex.cz>, <tiwai@...e.com>,
        <kuninori.morimoto.gx@...esas.com>, <robh+dt@...nel.org>,
        <lgirdwood@...il.com>
CC:     <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <alsa-devel@...a-project.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <sharadg@...dia.com>,
        <mkumard@...dia.com>, <viswanathl@...dia.com>,
        <rlokhande@...dia.com>, <dramesh@...dia.com>,
        <atalambedu@...dia.com>, <nwartikar@...dia.com>,
        <swarren@...dia.com>, <nicoleotsuka@...il.com>,
        Sameer Pujar <spujar@...dia.com>
Subject: [PATCH 00/10] Audio graph card updates and usage with Tegra210 audio

This series proposes following enhancements to audio-graph card driver.
 * Support multiple instances of a component.
 * Support Codec port with multiple endpoints.
 * 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)

Sameer Pujar (10):
  ASoC: soc-core: Fix component name_prefix parsing
  ASoC: audio-graph: Use of_node and DAI for DPCM DAI link names
  ASoC: audio-graph: Support Codec with multiple endpoints
  ASoC: audio-graph: Support for empty end point
  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
  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      | 120 +++++++++++++
 arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts | 196 +++++++++++++++++++++
 arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 110 ++++++++++++
 include/sound/soc.h                                |   1 +
 sound/soc/generic/audio-graph-card.c               |  85 ++++++---
 sound/soc/soc-core.c                               |   3 +-
 sound/soc/soc-pcm.c                                |   3 +-
 8 files changed, 495 insertions(+), 24 deletions(-)
 create mode 100644 arch/arm64/boot/dts/nvidia/tegra210-audio-graph.dtsi

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2.7.4