linux-kernel - Re: [RFC part1 PATCH 7/7] ARM64 / ACPI: Enable ARM64 in Kconfig

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Date:	Wed, 04 Dec 2013 23:55:45 +0800
From:	Hanjun Guo <hanjun.guo@...aro.org>
To:	Graeme Gregory <graeme.gregory@...aro.org>
CC:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	linux-acpi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Grant Likely <grant.likely@...aro.org>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Olof Johansson <olof@...om.net>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Rob Herring <rob.herring@...xeda.com>,
	Mark Rutland <mark.rutland@....com>,
	Jon Masters <jonathan@...masters.org>, patches@...aro.org,
	linux-kernel@...r.kernel.org, linaro-kernel@...ts.linaro.org,
	linaro-acpi@...ts.linaro.org, Al Stone <al.stone@...aro.org>
Subject: Re: [RFC part1 PATCH 7/7] ARM64 / ACPI: Enable ARM64 in Kconfig

On 2013年12月04日 18:10, Graeme Gregory wrote:
> On Wed, Dec 04, 2013 at 12:36:51AM +0800, Hanjun Guo wrote:
>> Add Kconfigs to build ACPI on ARM64, and make ACPI runable on ARM64.
>>
>> acpi_idle driver is x86/IA64 dependent now, so make CONFIG_ACPI_PROCESSOR
>> depends on X86 || IA64, and implement it on ARM in the furture.
>>
>> In order to make arm-core.c can both run on ARM and ARM64, introduce
>> CONFIG_ACPI_ARM to support it.
>>
>> Signed-off-by: Graeme Gregory <graeme.gregory@...aro.org>
>> Signed-off-by: Al Stone <al.stone@...aro.org>
>> Signed-off-by: Hanjun Guo <hanjun.guo@...aro.org>
>> ---
>>   arch/arm64/Kconfig         |    2 ++
>>   drivers/acpi/Kconfig       |   12 +++++++++---
>>   drivers/acpi/plat/Makefile |    2 +-
>>   3 files changed, 12 insertions(+), 4 deletions(-)
>>
>> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
>> index 88c8b6c1..a37795f 100644
>> --- a/arch/arm64/Kconfig
>> +++ b/arch/arm64/Kconfig
>> @@ -280,6 +280,8 @@ source "net/Kconfig"
>>   
>>   source "drivers/Kconfig"
>>   
>> +source "drivers/acpi/Kconfig"
>> +
>>   source "fs/Kconfig"
>>   
>>   source "arch/arm64/kvm/Kconfig"
>> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
>> index 53f0f16..f43485e 100644
>> --- a/drivers/acpi/Kconfig
>> +++ b/drivers/acpi/Kconfig
>> @@ -2,13 +2,17 @@
>>   # ACPI Configuration
>>   #
>>   
>> +config ACPI_ARM
>> +	bool
>> +	select ACPI_REDUCED_HARDWARE
>> +
>>   menuconfig ACPI
>>   	bool "ACPI (Advanced Configuration and Power Interface) Support"
>>   	depends on !IA64_HP_SIM
>> -	depends on IA64 || X86
>> -	depends on PCI
>> +	depends on ((IA64 || X86) && PCI) || ARM64
>>   	select PNP
>> -	default y
>> +	select ACPI_ARM if (ARM || ARM64)
>> +	default y if !(ARM || ARM64)
> Should only be ARM64 here with the current files in this series, I think
> this is causing others confusion looking for arm 32bit support in patches
> where there is none yet!

ah, yes, my bad, will update it in next version.

Thanks
Hanjun
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