linux-kernel - Re: [PATCH v3 4/5] arm64: Add support for Spreadtrum's Sharkl64 Platform in Kconfig and defconfig

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Date:	Wed, 26 Nov 2014 10:00:31 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Lyra Zhang <zhang.lyra@...il.com>
Cc:	Chunyan Zhang <chunyan.zhang@...eadtrum.com>,
	grant.likely@...aro.org, "robh+dt@...nel.org" <robh+dt@...nel.org>,
	Catalin Marinas <catalin.marinas@....com>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"ijc+devicetree@...lion.org.uk" <ijc+devicetree@...lion.org.uk>,
	"jslaby@...e.cz" <jslaby@...e.cz>,
	Kumar Gala <galak@...eaurora.org>,
	Mark Rutland <mark.rutland@....com>,
	"m-karicheri2@...com" <m-karicheri2@...com>,
	Pawel Moll <pawel.moll@....com>,
	Ramkumar Ramachandra <artagnon@...il.com>,
	"rrichter@...ium.com" <rrichter@...ium.com>,
	Will Deacon <will.deacon@....com>, gnomes@...rguk.ukuu.org.uk,
	corbet@....net, jason@...edaemon.net,
	Mark Brown <broonie@...nel.org>, heiko@...ech.de,
	shawn.guo@...escale.com, florian.vaussard@...l.ch, andrew@...n.ch,
	hytszk@...il.com, Orson Zhai <orsonzhai@...il.com>,
	"geng.ren@...eadtrum.com" <geng.ren@...eadtrum.com>,
	"zhizhou.zhang" <zhizhou.zhang@...eadtrum.com>,
	lanqing.liu@...eadtrum.com,
	Wei Qiao (乔伟) <wei.qiao@...eadtrum.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"sprdlinux@...elists.org" <sprdlinux@...elists.org>,
	linux-doc@...r.kernel.org, linux-serial@...r.kernel.org,
	linux-api@...r.kernel.org
Subject: Re: [PATCH v3 4/5] arm64: Add support for Spreadtrum's Sharkl64 Platform in Kconfig and defconfig

On Wednesday 26 November 2014 10:32:35 Lyra Zhang wrote:
> 
> For now, we have only one platform(Sharkl64) based on ARM64 been submitted,
> but we're intending to add support for more our platforms based on ARM64 or
> ARM32 in the future. There are many common devices on these platforms, such
> as serial. Our idea would be that if we had a 'menuconfig ARCH_SPRD' in the
> Kconfig, these common devices only need to depend on ARCH_SPRD in the
> respective Kconfig, otherwise they may depend on a few Kconfig symbols for
> every platforms which include these common devices.
> 
> So, do you think whether we should define a menuconfig(ARCH_SPRD) in the
> Kconfig for this case ?

It sounds like your other platforms are all related, so one ARCH_SPRD
should be enough. If someone wants to build a  kernel that is only
going to run on a particular machine, they can just turn off all the
other drivers they don't want.

	Arnd
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