Re: [PATCH v6 1/3] ARM: kconfig: allow PCI support to be selected with ARCH_MULTIPLATFORM

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On Thu, May 08, 2014 at 04:08:25PM +0100, Stephen Warren wrote:
> On 05/07/2014 10:07 AM, Will Deacon wrote:
> > When targetting ARCH_MULTIPLATFORM, we may include support for SoCs with
> > PCI-capable devices (e.g. mach-virt with virtio-pci).
> > 
> > This patch allows PCI support to be selected for these SoCs by selecting
> > CONFIG_MIGHT_HAVE_PCI when CONFIG_ARCH_MULTIPLATFORM=y.
> 
> > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> 
> > @@ -314,6 +314,7 @@ config ARCH_MULTIPLATFORM
> >  	select CLKSRC_OF
> >  	select COMMON_CLK
> >  	select GENERIC_CLOCKEVENTS
> > +	select MIGHT_HAVE_PCI
> 
> Doesn't ARCH_MULTIPLATFORM allow ARCH_$soc to be selected, and ARCH_$soc
> selects MIGHT_HAVE_PCI?
> 
> That way, you can only enable PCI support if you have actually enabled
> an SoC that has PCI, and equally ARCH_$soc selects MIGHT_HAVE_PCI just
> like it always used to work before ARCH_MULTIPLATFORM.

Yeah, I initially had this only for mach-virt, but the last review suggested
moving it here:

  http://lists.infradead.org/pipermail/linux-arm-kernel/2014-May/252937.html

Will
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