[PATCH 0/4] ASoC: fsl: expose individual DAIs per ASRC/EASRC conversion pair/context

[shengjiu . wang]

From: Shengjiu Wang <shengjiu.wang@xxxxxxx>

The i.MX ASRC and EASRC hardware each support multiple independent
conversion pairs or contexts, but both drivers previously registered
only a single DAI with generic stream names. This prevented individual
pairs or contexts from being routed to separate audio paths at the same
time.

This series updates the DT bindings and drivers to expose one DAI per
conversion unit:

- fsl,imx-asrc: add a ports container (port@0/1/2 for pairs A/B/C)
  alongside the deprecated single port property
- fsl,easrc: add a ports container (port@0/1/2/3 for contexts A/B/C/D)
- fsl_asrc: register three DAIs (paira/pairb/pairc); pair A keeps the
  original stream names for backward compatibility
- fsl_easrc: register four DAIs (ctxa/ctxb/ctxc/ctxd); context A keeps
  the original stream names for backward compatibility

Shengjiu Wang (4):
  dt-bindings: sound: fsl,imx-asrc: update port binding to support
    multiple pairs
  dt-bindings: sound: fsl,easrc: add ports binding for multiple contexts
  ASoC: fsl_asrc: expose individual DAIs per conversion pair
  ASoC: fsl_easrc: expose individual DAIs per conversion context

 .../devicetree/bindings/sound/fsl,easrc.yaml  |  79 ++++++++++++
 .../bindings/sound/fsl,imx-asrc.yaml          |  78 ++++++++++++
 sound/soc/fsl/fsl_asrc.c                      |  89 ++++++++++----
 sound/soc/fsl/fsl_easrc.c                     | 112 ++++++++++++++----
 4 files changed, 318 insertions(+), 40 deletions(-)

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2.34.1