Many thanks, I see what you mean, they are enabled at the board level (Intel, amd and rockchip). I'll patch mine (sunxi) and the defconfig.
On Thu, 04 Oct 2018 12:44:00 +0100, Paul Nader said:
> I'm trying to enable the max98357a codec in sound/soc/codecs.
> In the Kconfig file it is listed with an empty tristate so it doesn't show
> up when I do a make menu config.
That's usually a result of the variable being enabled by a 'select' elsewhere.
> How can I enable it without adding a description to the tristate?
Enable something that does a 'select'. Look in a 'git grep MAX98357A'
or "find . -name 'Kconfig*' | xargs grep MAX98357A' . It looks like that
part is mostly used for some arm64 (it's in the defconfig) and some
Intel SoC boards. Look at sound/soc/intel/boards/Kconfig.