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ASoC: SDCA: Add UMP buffer helper functions

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Add helper functions for handling Universal Message Passing (UMP)
buffers on SDCA devices. These are generic mechanisms to pass blocks of
binary data between the host and the device, in both directions. They
are used for things like passing HID descriptors and the File Download
process.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Link: https://patch.msgid.link/20251020155512.353774-13-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Charles Keepax 2025-10-20 16:55:05 +01:00 • committed by Mark Brown
commit daab108504
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4 changed files with 320 additions and 1 deletions
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