ASoC: cs35l56: Add support for new Dell laptops

Merge series from Richard Fitzgerald <rf@opensource.cirrus.com>:

On new Dell models the driver must read a UEFI variable to get a
variant identifier for the audio hardware. Without this, the driver
cannot know which firmware file to load to the amps.
This commit is contained in:
Mark Brown 2026-01-21 16:06:39 +00:00
commit be9d8d9664
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8 changed files with 741 additions and 25 deletions