From mboxrd@z Thu Jan  1 00:00:00 1970
From: swarren@wwwdotorg.org (Stephen Warren)
Date: Thu, 08 May 2014 09:08:25 -0600
Subject: [PATCH v6 1/3] ARM: kconfig: allow PCI support to be selected
 with ARCH_MULTIPLATFORM
In-Reply-To: <1399478839-3564-2-git-send-email-will.deacon@arm.com>
References: <1399478839-3564-1-git-send-email-will.deacon@arm.com>
 <1399478839-3564-2-git-send-email-will.deacon@arm.com>
Message-ID: <536B9DE9.80100@wwwdotorg.org>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

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.