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⇱ SoundWire Multi-Lane Support Submitted For Linux 6.14 - Phoronix

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SoundWire Multi-Lane Support Submitted For Linux 6.14

Written by Michael Larabel in Multimedia on 30 January 2025 at 06:20 AM EST. 5 Comments
All of the MIPI SoundWire related updates have been submitted for the in-development Linux 6.14 kernel. SoundWire as a reminder is the standard interface for modern, small audio peripherals.

The main feature of the SoundWire updates for Linux 6.14 is enabling multi-lane support.

Optional extensions to the SoundWire specification allow for multiple data lanes to be combined for the SoundWire bus for greater bandwidth. SoundWire multi-lane devices can use up to eight data lanes but most SoundWire devices are just one-lane / two-pin designs. With the SoundWire multi-lane support, it relies on lane connection information exposed via ACPI for obtaining the properties on the multiple lanes.

The multi-lane support is the "big" feature of the SoundWire code for Linux 6.14 with the full list of patches documented via this pull request.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.