[alsa-devel] [PATCH v4 0/5] Support for OMAP4 Digital Microphone interface

Peter Ujfalusi peter.ujfalusi at ti.com
Mon Nov 28 14:45:38 CET 2011


The following series will add support for OMAP4 DMIC interface, and enable them
on sdp4430/Blaze boards.

Changes since v3:
- dmic clk divider selection moved to hw_params phase to allow fixed rate
  configuration from machine driver init.

Changes since v2:
- Use module_platform_driver
- convert to use devm_
- Add clk_id for the output clock
- Extend the comment to explain why the driven can change the divider for 192KHz
  sampling rate.

Changes since v1:
- 192KHz rate support fixed (need to use different divider)
- Hold reference for dmic_fclk over the lifetime of the driver
- Removed the clkdiv callback, and replaced with frequency based configuration
  for the external components (dmic frequency)

Peter Ujfalusi (5):
  OMAP4: hwmod: Add names for DMIC memory address space
  ASoC: OMAP4: omap-dmic: Initial support for OMAP DMIC
  OMAP4: devices: Register OMAP4 DMIC platform device
  OMAP4: board-4430sdp: Register platform device for digimic codec
  ASoC: sdp4430: Add support for digital microphones

 arch/arm/mach-omap2/board-4430sdp.c        |    6 +
 arch/arm/mach-omap2/devices.c              |   22 ++
 arch/arm/mach-omap2/omap_hwmod_44xx_data.c |    2 +
 sound/soc/omap/Kconfig                     |    5 +
 sound/soc/omap/Makefile                    |    2 +
 sound/soc/omap/omap-dmic.c                 |  549 ++++++++++++++++++++++++++++
 sound/soc/omap/omap-dmic.h                 |   69 ++++
 sound/soc/omap/sdp4430.c                   |   85 ++++-
 8 files changed, 729 insertions(+), 11 deletions(-)
 create mode 100644 sound/soc/omap/omap-dmic.c
 create mode 100644 sound/soc/omap/omap-dmic.h


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