linux-kernel - Re: [PATCH v4 13/13] ARM64 / ACPI: Enable ARM64 in Kconfig

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Message-ID: <20140701092201.GF18313@arm.com>
Date:	Tue, 1 Jul 2014 10:22:01 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Hanjun Guo <hanjun.guo@...aro.org>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	"rric@...nel.org" <rric@...nel.org>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>,
	Sudeep Holla <Sudeep.Holla@....com>,
	Mark Rutland <Mark.Rutland@....com>,
	Charles Garcia-Tobin <Charles.Garcia-Tobin@....com>,
	Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>,
	"linaro-acpi@...ts.linaro.org" <linaro-acpi@...ts.linaro.org>,
	"graeme.gregory@...aro.org" <graeme.gregory@...aro.org>,
	Al Stone <al.stone@...aro.org>
Subject: Re: [PATCH v4 13/13] ARM64 / ACPI: Enable ARM64 in Kconfig

On Tue, Jul 01, 2014 at 09:20:20AM +0100, Hanjun Guo wrote:
> >>>  	depends on PCI
> >>>  	select PNP
> >>> -	default y
> >>> +	default y if !ARM64
> >>
> >> For the benefit of single Image, I think you can default to y here.
> > 
> > It ok to me. if we default to y here, devicetree will not be unflattened
> > in default, is it ok to you? you can refer to "[PATCH 12/13] ARM64 / ACPI: if
> > we chose to boot from acpi then disable FDT".
> 
> Ah, sorry I didn't describe it clearly. since there is no shipping board
> with ACPI tables, so ACPI will disabled in the very early stage and FDT
> still have chance to be unflattened, so will not break DT booting in
> this patchset.

That's what I thought. So leaving it as a default y is fine by me. But I
would not merge this patch now until we get some useful functionality
for arm64.

The x86-related cleanup patches can be merged separately via the
corresponding trees (it's up to the ACPI and x86 maintainers).

-- 
Catalin
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