From: Mark Brown <broonie@kernel.org>
Date: Thu, 5 Feb 2026 00:45:16 +0000 (+0000)
Subject: ASoC: SOF: Support for echoref (virtual DAI)
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dc8384d85c034b3c3912ec7fc43784da5b884c27;p=thirdparty%2Fkernel%2Flinux.git

ASoC: SOF: Support for echoref (virtual DAI)

Merge series from Peter Ujfalusi <peter.ujfalusi@linux.intel.com>:

The series adds support for echo reference functionality by allowing
the capturing of playback audio right before it leaves the DSP.
For this to work correctly we need a virtual DAI that is also connected
to the echo reference capture device and in absence of playback a
signal generator generates silence to allow the capture to run.
When the real playback starts, application will start to receive the
playback audio to be usable for echo reference.
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dc8384d85c034b3c3912ec7fc43784da5b884c27