Linux Driver for PCM179X

(ACTIVE) PCM179XSW-LINUX

Description & Features

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Description

The Linux driver supports the PCM179x family of Audio DACs. The Linux driver supports communication through I2C and SPI, and registers with the ASOC framework of the Linux kernel.

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:

  • pcm1792a

 

Linux Source Files

The files associated with this device are:

  1. sound/soc/codecs/pcm179x.c
  2. sound/soc/codecs/pcm179x-i2c.c
  3. sound/soc/codecs/pcm179x-spi.c
  4. Documentation/devicetree/bindings/sound/pcm179x.txt

Source Files

sound/soc/codecs/pcm179x.c
sound/soc/codecs/pcm179x-i2c.c
sound/soc/codecs/pcm179x-spi.c

Linux Device Tree Documenation

Documentation/devicetree/bindings/sound/pcm179x.txt

 

Enabling Driver Support

Configure kernel with "make menuconfig" (alternatively use "make xconfig" or
"make nconfig")

Menuconfig Location

Symbol: SND_SOC_PCM179X [=y]
Type  : tristate
  Defined at sound/soc/codecs/Kconfig:541
  Depends on: SOUND [=y] && !M68K && !UML && SND [=y] && SND_SOC [=y]
  Selected by: SND_SOC_PCM179X_I2C [=y] && SOUND [=y] && !M68K && !UML && SND [=y] && SND_SOC [=y] && I2C [=y] || SND_SOC_PCM179X_SPI [=y] && SOUND [=y] && !M68K && !UML && SND [=y] && SND_SOC [=y] && SPI_MASTER [=y]


Symbol: SND_SOC_PCM179X_I2C [=y]
Type  : tristate
Prompt: Texas Instruments PCM179X CODEC (I2C)
  Location:
    -> Device Drivers
      -> Sound card support (SOUND [=y])
        -> Advanced Linux Sound Architecture (SND [=y])
          -> ALSA for SoC audio support (SND_SOC [=y])
            -> CODEC drivers
  Defined at sound/soc/codecs/Kconfig:544
  Depends on: SOUND [=y] && !M68K && !UML && SND [=y] && SND_SOC [=y] && I2C [=y]
  Selects: SND_SOC_PCM179X [=y]
  Selected by: SND_SOC_ALL_CODECS [=y] && SOUND [=y] && !M68K && !UML && SND [=y] && SND_SOC [=y] && COMPILE_TEST [=y] && I2C [=y]


Symbol: SND_SOC_PCM179X_SPI [=y]
Type  : tristate
Prompt: Texas Instruments PCM179X CODEC (SPI)
  Location:
    -> Device Drivers
      -> Sound card support (SOUND [=y])
        -> Advanced Linux Sound Architecture (SND [=y])
          -> ALSA for SoC audio support (SND_SOC [=y])
            -> CODEC drivers
  Defined at sound/soc/codecs/Kconfig:552
  Depends on: SOUND [=y] && !M68K && !UML && SND [=y] && SND_SOC [=y] && SPI_MASTER [=y]
  Selects: SND_SOC_PCM179X [=y]
  Selected by: SND_SOC_ALL_CODECS [=y] && SOUND [=y] && !M68K && !UML && SND [=y] && SND_SOC [=y] && COMPILE_TEST [=y] && SPI_MASTER [=y]

Fixes and Code Enhancements

 

If there are fixes and or code enhancements that need to be added to this
driver please either

1. Send the patches to the relevant Linux Kernel community as listed in the maintainers file located: Here

or

2.  Contact your TI representative.

 

TI Devices (1)

Part Number Name Product Family
PCM1792A  132dB SNR Highest Performance Stereo DAC (S/W Control)  Audio converters 

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