ASoC: cs35l56: Add control to read CAL_SET_STATUS

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Create an ALSA control to read the value of the firmware
CAL_SET_STATUS control. This reports whether the firmware is
using a calibration blob or the default calibration from the
.bin file.

The firmware only reports a valid value in this register while
audio is actually playing and the internal PLL is locked to the
audio clock. Otherwise it returns a status of "unknown".

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20251111130850.513969-2-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Richard Fitzgerald 2025-11-11 13:08:49 +00:00 • committed by Mark Brown

parent 772ada5028

commit 69f3474a01

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9

include/sound/cs35l56.h

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48

sound/soc/codecs/cs35l56-shared.c

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16

sound/soc/codecs/cs35l56.c

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