[alsa-devel] [PATCH 0/9] ASoC: QCOM: Add support for ipq806x SOC

[Kenneth Westfield]

From: Kenneth Westfield <kwestfie at codeaurora.org>

This set of patches adds support for audio on the Qualcomm Technologies
ipq806x SOC.

The ipq806x SOC has audio-related hardware blocks in its low-power audio
subsystem (or LPASS).  One of the relevant blocks in the LPASS is its
low-power audio interface (or LPAIF).  This encapsulates the MI2S port,
which is what these drivers are configured to use.  The I2S pins are
connected to an external DAC/amp chip.  In addition, a single GPIO is
connected to the same DAC/amp, which gives the SOC enable/disable
control.

The specific drivers added are:
 - a machine driver that handles the board-specific pins
 - a native driver that handles hardware access to the LPAIF
 - a CPU DAI driver for controlling the LPAIF block
 - a PCM MI2S platform driver

Corresponding additions to the device tree for the ipq806x and its
documentation has also been added.  Also, as this is a new directory,
the MAINTAINERS file has been updated as well.

 - Ken

Kenneth Westfield (9):
  MAINTAINERS: Add QCOM audio ASoC maintainer
  ASoC: qcom: Add device tree binding docs
  ASoC: ipq806x: add native LPAIF driver
  ASoC: ipq806x: Add LPASS CPU DAI driver
  ASoC: ipq806x: Add I2S PCM platform driver
  ASoC: ipq806x: Add machine driver for IPQ806X SOC
  ASoC: qcom: Add ability to build QCOM drivers
  ASoC: Allow for building QCOM drivers
  ARM: dts: Model IPQ LPASS audio hardware

 .../bindings/sound/qcom,ipq806x-snd-card.txt       |  41 ++
 .../bindings/sound/qcom,lpass-cpu-dai.txt          |  20 +
 .../devicetree/bindings/sound/qcom,lpass-lpaif.txt |  21 +
 .../bindings/sound/qcom,lpass-pcm-mi2s.txt         |  12 +
 MAINTAINERS                                        |   7 +
 arch/arm/boot/dts/qcom-ipq8064.dtsi                |  33 ++
 sound/soc/Kconfig                                  |   1 +
 sound/soc/Makefile                                 |   1 +
 sound/soc/qcom/Kconfig                             |  43 ++
 sound/soc/qcom/Makefile                            |  11 +
 sound/soc/qcom/ipq806x.c                           | 221 ++++++++++
 sound/soc/qcom/lpass-cpu-dai.c                     | 307 +++++++++++++
 sound/soc/qcom/lpass-lpaif.c                       | 488 +++++++++++++++++++++
 sound/soc/qcom/lpass-lpaif.h                       | 181 ++++++++
 sound/soc/qcom/lpass-pcm-mi2s.c                    | 390 ++++++++++++++++
 sound/soc/qcom/lpass-pcm-mi2s.h                    |  40 ++
 16 files changed, 1817 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,ipq806x-snd-card.txt
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-cpu-dai.txt
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-lpaif.txt
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-pcm-mi2s.txt
 create mode 100644 sound/soc/qcom/Kconfig
 create mode 100644 sound/soc/qcom/Makefile
 create mode 100644 sound/soc/qcom/ipq806x.c
 create mode 100644 sound/soc/qcom/lpass-cpu-dai.c
 create mode 100644 sound/soc/qcom/lpass-lpaif.c
 create mode 100644 sound/soc/qcom/lpass-lpaif.h
 create mode 100644 sound/soc/qcom/lpass-pcm-mi2s.c
 create mode 100644 sound/soc/qcom/lpass-pcm-mi2s.h

-- 
1.8.2.1