ASoC: cs4271: Add support for the external mclk

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The mclk (master clock) of the cs4271 codec can be an input clock.

In this case the connected clock needs to be enabled outside of any
audio stream. Indeed, this clock is needed for i2c communication.

Add support of this clock and enable it before the first i2c transfer.

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://patch.msgid.link/20251029093921.624088-5-herve.codina@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Herve Codina 2025-10-29 10:39:20 +01:00 • committed by Mark Brown

parent 3cd523ba27

commit cf6bf51b53

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sound/soc/codecs/cs4271.c

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