linux-kernel - Re: [PATCH 04/20] ARM64 / ACPI: Introduce arm

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Date:	Sat, 18 Jan 2014 12:05:24 +0800
From:	Hanjun Guo <hanjun.guo@...aro.org>
To:	Will Deacon <will.deacon@....com>
CC:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Catalin Marinas <Catalin.Marinas@....com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"grant.likely@...aro.org" <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 <robh@...nel.org>,
	Mark Rutland <Mark.Rutland@....com>,
	Arnd Bergmann <arnd@...db.de>,
	"patches@...aro.org" <patches@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linaro-kernel@...ts.linaro.org" <linaro-kernel@...ts.linaro.org>,
	"linaro-acpi@...ts.linaro.org" <linaro-acpi@...ts.linaro.org>,
	Charles Garcia-Tobin <Charles.Garcia-Tobin@....com>,
	Al Stone <al.stone@...aro.org>,
	"graeme.gregory@...aro.org" <graeme.gregory@...aro.org>
Subject: Re: [PATCH 04/20] ARM64 / ACPI: Introduce arm_core.c and its related
 head file

On 2014-1-17 22:12, Will Deacon wrote:
> On Fri, Jan 17, 2014 at 12:24:58PM +0000, Hanjun Guo wrote:
>> Introduce arm_core.c and its related head file, after this patch,
>> we can get ACPI tables from firmware on ARM64 now.
>>
>> Signed-off-by: Al Stone <al.stone@...aro.org>
>> Signed-off-by: Graeme Gregory <graeme.gregory@...aro.org>
>> Signed-off-by: Hanjun Guo <hanjun.guo@...aro.org>
> 
> [...]
> 
>> diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
>> index bd9bbd0..2210353 100644
>> --- a/arch/arm64/kernel/setup.c
>> +++ b/arch/arm64/kernel/setup.c
>> @@ -41,6 +41,7 @@
>>  #include <linux/memblock.h>
>>  #include <linux/of_fdt.h>
>>  #include <linux/of_platform.h>
>> +#include <linux/acpi.h>
>>  
>>  #include <asm/cputype.h>
>>  #include <asm/elf.h>
>> @@ -225,6 +226,11 @@ void __init setup_arch(char **cmdline_p)
>>  
>>  	arm64_memblock_init();
>>  
>> +	/* Parse the ACPI tables for possible boot-time configuration */
>> +	acpi_boot_table_init();
>> +	early_acpi_boot_init();
>> +	acpi_boot_init();
> 
> Do we really need *three* back-to-back calls for ACPI to initialise?

Sorry, my colleague Graeme had integrate them as one function but I
forgot to merge them in this patch, my bad, will update it in next
version.

Thanks
Hanjun

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