85b61e1e43
DTS modules (device modules) often have a single source file with an empty `struct Module`. The module's yaml file now allows a `dts-only` boolean to be set, so the source file becomes optional. `devicetree.yaml` is renamed everywhere to `module.yaml`
AW88298 speaker amplifier
A driver for the AW88298 smart speaker power amplifier by Awinic, wired as an
output-only AUDIO_CODEC_TYPE device. The I2C bus is the device's parent; the I2S
controller carrying audio data is referenced via a devicetree phandle.
Wraps Espressif's esp_codec_dev AW88298 implementation. If a hardware reset
(pin-reset) is wired, this driver pulses it itself before opening the codec,
rather than handing it to esp_codec_dev's own reset handling -- the vendor
driver treats a reset pin index of 0 as "no pin wired" and silently skips the
reset, which doesn't match the audio_codec_adapter_new_gpio() convention used
elsewhere in this codebase (a single-pin array is always referenced at index 0).
See https://www.awinic.com/en/productDetail/AW88298
License: Apache v2.0