ASoC: ux500: Allow repeated MSP prepare calls

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ALSA can call the DAI prepare callback again after an XRUN without
first shutting down the stream. The MSP open helper rejects the second
call with -EBUSY because the direction remains configured.

Track successful playback and capture configurations at the DAI layer.
Make repeated prepare calls no-ops and only close directions which were
successfully prepared.

Fixes: 3592b7f69a ("ASoC: Ux500: Add MSP I2S-driver")
Assisted-by: LLM
Signed-off-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20260902-ux500-msp-fixes-v2-8-4b60b002d55a@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

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Linus Walleij 2026-09-02 09:55:58 +02:00 • committed by Mark Brown

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sound/soc/ux500/ux500_msp_dai.c

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sound/soc/ux500/ux500_msp_dai.h

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