[00/13] ASoC: ti: davinci-i2s: Add features to McBSP driver

Message

Bastien Curutchet March 15, 2024, 11:27 a.m. UTC

This series aims to add some features to McBSP driver.

Convert bindings from .txt to .yaml.
Add possibility to use an external clock as sample rate generator's
input.
Add handling of new formats (TDM, S24_LE, BP_FC).
Add optional properties in DT:
 - ti,enable-sync-err  : Enable the detection of unexpected frame pulses
 - ti,disable-free-run : Disable the free-running mode where McBSP drives
                         serial clocks during emulation halt
 - ti,drive-dx 	       : Outputs a chosen pattern on DX pin during
                         capture streams.

This has been tested on a platform designed off of the DAVINCI/OMAP-L138
connected to 3 daisy-chained AD7767. An external clock drives the
sample rate generator through the CLKS pin.
The hardware I have only allowed me to test acquisition side of McBSP.
It is connected to a 6 channels TDM and acts as Bit clock provider and
Frame clock consumer.

Bastien Curutchet (13):
  ASoC: dt-bindings: davinci-mcbsp: convert McBSP bindings to yaml
    schema
  ASoC: dt-bindings: davinci-mcbsp: Add new properties
  ASoC: ti: davinci-i2s: Remove the unused clk_input_pin attribute
  ASoC: ti: davinci-i2s: Replace dev_err with dev_err_probe
  ASoC: ti: davinci-i2s: Use external clock to drive sample rate
    generator
  ASoC: ti: davinci-i2s: Delete unnecessary assignment
  ASoC: ti: davinci-i2s: Add TDM support
  ASoC: ti: davinci-i2s: Add handling of BP_FC format
  ASoC: ti: davinci-i2s: Enable unexpected frame pulses detection
  ASoC: ti: davinci-i2s: Make free-running mode optional
  ASoC: ti: davinci-i2s: Add S24_LE to supported formats
  ASoC: dt-bindings: davinic-mcbsp: Add the 'ti,drive-dx' property
  ASoC: ti: davinci-i2s: Opitonally drive DX pin during capture streams

 .../bindings/sound/davinci-mcbsp.txt          |  50 ---
 .../bindings/sound/davinci-mcbsp.yaml         | 119 +++++++
 include/linux/platform_data/davinci_asp.h     |  15 -
 sound/soc/ti/davinci-i2s.c                    | 333 ++++++++++++++----
 4 files changed, 376 insertions(+), 141 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/sound/davinci-mcbsp.txt
 create mode 100644 Documentation/devicetree/bindings/sound/davinci-mcbsp.yaml