[RFC PATCH V4 6/6] riscv: soc: Add Allwinner SoC kconfig option

[Krzysztof Kozlowski]

On Tue, 14 Sept 2021 at 11:31, Arnd Bergmann <arnd at arndb.de> wrote:
> Some subsystem maintainers want drivers to be selected by the SoC
> option, this is why you need the 'select SIFIVE_PLIC', but usually
> the drivers are selectable with a 'depends on ARCH_SUNXI ||
> COMPILE_TEST' and enabled in the defconfig.

I would say selecting drivers is even more useful for distros and
other downstream users. Especially in the ARM world where we have so
many different SoCs - how could a distro person know which driver is
necessary, important or useful? Having all main SoC drivers enabled
when ARCH_SUNXI=y, helps distro a lot.

> If you want to get fancy, you can use something like:
>
> config RESET_SUNXI
>         bool "Allwinner SoCs Reset Driver" if COMPILE_TEST && !ARCH_SUNXI
>         default ARCH_SUNXI
>
> This will make an option that
>  - always enabled when the platform is built-in
>  - user selectable when compile-testing for any other platform
>  - always disabled otherwise

+1 for this pattern.

Best regards,
Krzysztof