linux-kernel - [PATCH v2 0/6] ASRC support on Tegra186 and later

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Date:   Thu, 31 Mar 2022 19:33:26 +0530
From:   Sameer Pujar <spujar@...dia.com>
To:     <broonie@...nel.org>, <robh+dt@...nel.org>, <krzk+dt@...nel.org>,
        <thierry.reding@...il.com>, <lgirdwood@...il.com>,
        <perex@...ex.cz>, <tiwai@...e.com>
CC:     <jonathanh@...dia.com>, <catalin.marinas@....com>,
        <will@...nel.org>, <alsa-devel@...a-project.org>,
        <devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Sameer Pujar <spujar@...dia.com>
Subject: [PATCH v2 0/6] ASRC support on Tegra186 and later

This series adds support for Asynchronous Sample Rate Converter (ASRC)
module on Tegra186 and later generations of SoCs. ASRC is a client of
AHUB. The driver and DT support is added to make it work with Tegra
audio graph card. The module can be plugged into audio path using ALSA
mixer controls.

ASRC supports two modes of operation, where it gets the ratio info
from SW and ratio detector module. Presently the support is added for
SW mode.


Changelog:
==========

  v1 -> v2:
  ---------
    * Updatated RPM resume call in ASRC driver. Specific register
      sequence programming is done before regcache sync.

    * Fixed return values of mixer control put() callbacks in
      ASRC driver.

    * No changes in other patches.

Sameer Pujar (6):
  ASoC: tegra: Add binding doc for ASRC module
  ASoC: tegra: Add Tegra186 based ASRC driver
  ASoC: tegra: AHUB routes for ASRC module
  arm64: defconfig: Build Tegra ASRC module
  arm64: tegra: Add ASRC device on Tegra186 and later
  arm64: tegra: Enable ASRC on various platforms

 .../bindings/sound/nvidia,tegra186-asrc.yaml       |   81 ++
 .../bindings/sound/nvidia,tegra210-ahub.yaml       |    4 +
 arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts |  223 +++++
 arch/arm64/boot/dts/nvidia/tegra186.dtsi           |    7 +
 arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts |  223 +++++
 .../arm64/boot/dts/nvidia/tegra194-p3509-0000.dtsi |  223 +++++
 arch/arm64/boot/dts/nvidia/tegra194.dtsi           |    8 +
 .../dts/nvidia/tegra234-p3737-0000+p3701-0000.dts  |  223 +++++
 arch/arm64/boot/dts/nvidia/tegra234.dtsi           |    8 +
 arch/arm64/configs/defconfig                       |    1 +
 sound/soc/tegra/Kconfig                            |   12 +
 sound/soc/tegra/Makefile                           |    2 +
 sound/soc/tegra/tegra186_asrc.c                    | 1046 ++++++++++++++++++++
 sound/soc/tegra/tegra186_asrc.h                    |  112 +++
 sound/soc/tegra/tegra210_ahub.c                    |   82 +-
 15 files changed, 2254 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra186-asrc.yaml
 create mode 100644 sound/soc/tegra/tegra186_asrc.c
 create mode 100644 sound/soc/tegra/tegra186_asrc.h

-- 
2.7.4