ASoC: Qualcomm Tambora (WCD9378) SDCA codec

Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com> says:

Add support for the Qualcomm Tambora (WCD9378) headset codec in
SDCA-compliant mode over SoundWire. On ARM/DT platforms without
ACPI/DisCo firmware, the SDCA topology and SoundWire port properties
are supplied as static data through the codec driver.

Patches 1-5 extend the ASoC SDCA class framework so that a
class-based codec driver can be built on ARM/DT: allow builds
without ACPI, expose the SoundWire probe/remove library entry
points, add class_ops with a populate_function hook, and translate
sound-dai cells by entity index.

Patches 6-7 add the WCD9378 dt-binding and driver. The same
silicon can be fused for a mobile (non-SDCA) or an SDCA-compliant
mode; the two share the SoundWire class-ID compatible
(sdw20217011000) and are selected apart by the qcom,sdca-compliant
boolean property.

Tested with HPH playback and headset-mic capture on the Snapdragon
X2 Elite Glymur CRD and Lenovo T14s Gen7.

Jack detection is not wired up in this series.

Link: https://patch.msgid.link/20260925161049.758913-1-srinivas.kandagatla@oss.qualcomm.com

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