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Comment: Updated for 2020.1

Table of Contents
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HW IP Features

This is a logical driver hence not applicable.

Driver Features

Features2019.1
Multiple sample rate supportYes

Known Issues & Limitations

  1. The driver is tested only with the following Xilinx audio drivers.
    1. I2S
    2. HDMI
    3. SDI
    4. SPDIF

Kernel Configurations

Below driver configuration should be enabled.

Code Block
themeMidnight
CONFIG_SND_SOC_XILINX_PL_SND_CARD=y

Device tree binding

This is a logical driver hence not applicable.

Test Procedure

The registered sound cards(along with its playback and capture devices) can be found at /proc/asound/cardX.


Code Block
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#ls /proc/asound/card0/
id    pcm0p pcm1c

Refer to the links provided in the Related Links section to use the soundcard.

Change Log

2020.1

2019.2

  • Summary
    • No changes

2019.1

  • Summary:
    • Enabled multi sample rate support for SDI, HDMI, SPDIF and I2S.
    • Added support for multiple instances of sound cards.
    • Added SPDIF Sound card.
  • Commits:
    • d38322a - ASoC: xlnx: revert HDMI audio mclk mutliplier.
    • 0ec0420 - ASoC: xlnx: change HDMI audio mclk .
    • 19c7d88 - ASoC: xlnx: add multi sample rate support for SDI audio.
    • 8377cdb - ASoC: xlnx: enable multi sample rate support for SPDIF sound card.
    • 6d04559 - ASoC: xlnx: enable multi sample rate support for HDMI sound card.
    • 81edb2b - ASoC: xlnx: enable multi sample rate support for I2S sound card.
    • 621e5f3  - ASoC: xlnx: support multiple instances of sound card.
    • 4e4eec6 - ASoC: xlnx: add SPDIF sound card support.
    • 4f2a3d9  - ASoC: xlnx: Disable clock wizard usage in audio driver.
    • 75984ce - ASoC: xlnx: support multiple sampling rates for SDI.
    • 0600da4 - ASoC: xlnx: support multiple sampling rates for HDMI.
    • d69a510 - ASoC: xlnx: support multiple sampling rates for I2S.

2018.3:

  • Summary
    • Initial release

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