DeviceTrees - MIPI SoundWire® Device Class for Audio (SDCA) and classic ACPI-DT...

on YouTube ↗26m

" summary

SDCA targets ACPI but a merged Intel generic codec driver today expects firmware-described init/topology via the kernel fwnode APIs; the choice is either replicate SDCA blobs in DTS including per-codec register sequences (controversial), provide a secondary firmware node that points to an ACPI or firmware blob (prototype works on at least one board), or commit firmware blob into kernel C data and have the generic driver consume it — no universal solution yet.

AI-written summary · about

" chapters (4)

1. 0:00Introduction to SDCA
2. 2:51Problem statement and options
3. 10:51Proposals and trade-offs
4. 22:52Q&A and summary

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