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SubjectRe: [PATCH] arm64: enable RapidIO config options in Kconfig
On Tue, Jul 24, 2018 at 09:45:14AM -0400, Alexei Colin wrote:
> ARM64 SoCs with a PCI bus present the RapiodIO options; SoCs with
> RapidIO IP blocks but without a PCI bus, need to select HAS_RAPIDIO in
> Kconfig.platforms.
>
> HAS_RAPIDIO was chosen over HAVE_RAPIDIO to be consistent with
> other architectures which already define this flag (powerpc).
>
> Signed-off-by: Alexei Colin <acolin@isi.edu>
> ---
>
> Tested that kernel builds with RapidIO subsystem and switch drivers and that
> modules insert successfully in a custom Qemu hardware model.
> Maintainers for RapidIO subsystem CCed.
> Similar patch for ARM has been submitted.
>
> arch/arm64/Kconfig | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 42c090cf0292..8dceaa5b674c 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -293,6 +293,22 @@ config PCI_SYSCALL
>
> source "drivers/pci/Kconfig"
>
> +config HAS_RAPIDIO
> + bool
> + default n
> +
> +config RAPIDIO
> + tristate "RapidIO support"
> + depends on HAS_RAPIDIO || PCI
> + help
> + This feature enables support for RapidIO high-performance
> + packet-switched interconnect.
> +
> + If you say Y here, the kernel will include drivers and
> + infrastructure code to support RapidIO interconnect devices.

It feels a bit weird to push this help text into the arch Kconfig files,
rather than just have them provide the HAS_RAPIDIO symbol, but if that's
what everybody else is doing then I guess it's fine.

Will

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