[PATCH 0/5] ASoC: fsl-asoc-card: Add some improvements

[Shengjiu Wang]

This patch series addresses several issues in the Freescale Generic ASoC
Sound Card driver related to hardware limitations, DPCM path switching,
and codec-specific constraints.

The fsl-asoc-card driver provides a generic machine driver for i.MX SoCs,
supporting various codecs and optional ASRC (Asynchronous Sample Rate
Converter) for sample rate conversion. During testing several issues were
identified:

1. Missing channel constraint propagation in DPCM mode
2. DPCM path switching causing audio dropouts
3. Hardware channel alignment requirements
4. Clock generation limitations preventing certain audio formats
5. Codec-specific PLL frequency violations

Shengjiu Wang (5):
  ASoC: fsl-asoc-card: enable dpcm_merged_chan flag for ASRC frontend
  ASoC: fsl-asoc-card: enable ignore_pmdown_time for ASRC case
  ASoC: fsl-asoc-card: add channel and rate constraints for CS42888
  ASoC: fsl-asoc-card: exclude S20_3LE format due to clock limitations
  ASoC: fsl-asoc-card: reduce WM8904 PLL ratio to meet frequency limit

 sound/soc/fsl/fsl-asoc-card.c | 88 ++++++++++++++++++++++++++++++++++-
 1 file changed, 87 insertions(+), 1 deletion(-)

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2.34.1