On Fri, Sep 18, 2026 at 02:19:06PM +0100, Srinivas Kandagatla wrote:
> The SDCA class driver is useful on non-ACPI platforms where the
> topology is supplied statically via sdca_class_hw_ops.get_function_data.

>  config SND_SOC_SDCA
>  	tristate "SDCA core support"
> -	depends on ACPI
>  	select AUXILIARY_BUS
>  	help
>  	  This option enables support for the MIPI SoundWire Device
> -	  Class for Audio (SDCA).
> +	  Class for Audio (SDCA).  The ACPI/DisCo topology parser is
> +	  only built when CONFIG_ACPI is enabled; on non-ACPI platforms
> +	  (e.g. ARM/DT) codec drivers supply the SDCA function data
> +	  via sdca_class_hw_ops.populate_function.

  $ git grep sdca_class_hw_ops
  $