ASoC: qcom: sc8280xp: add TDM hw_params support

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Add TDM backend handling to the sc8280xp machine driver.

Use the common QCOM DAI-node TDM helper to parse the standard
DAI TDM slot properties from backend CPU and codec endpoints. Reuse the
parsed configuration when programming DAIs so hw_params does not need a
second DT traversal.

Derive the LPASS backend bit clock from the runtime TDM parameters and
request it through the backend child-clock path using LPAIF_MI2S_BCLK.

Program codec sysclk in hw_params so codec PLL setup happens before the
stream is triggered.

Signed-off-by: Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20260804070307.117119-8-prasad.kumpatla@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Prasad Kumpatla 2026-08-04 12:33:07 +05:30 • committed by Mark Brown

parent 1e844ecbc9

commit a689ee3b2f

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sound/soc/qcom/sc8280xp.c

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