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

2014-07-01 Thread Catalin Marinas
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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Re: [PATCH v4 13/13] ARM64 / ACPI: Enable ARM64 in Kconfig

2014-07-01 Thread Hanjun Guo
>>
>>> 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.

Thanks
Hanjun

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

2014-07-01 Thread Hanjun Guo
On 2014-6-30 18:46, Catalin Marinas wrote:
> On Fri, Jun 27, 2014 at 04:49:36AM +0100, Hanjun Guo wrote:
>> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
>> index 7de5e3f..33d6dbb 100644
>> --- a/drivers/acpi/Kconfig
>> +++ b/drivers/acpi/Kconfig
>> @@ -8,10 +8,10 @@ config ACPI_SCAN_BIOS_NOT_EFI
>>  menuconfig ACPI
>>  bool "ACPI (Advanced Configuration and Power Interface) Support"
>>  depends on !IA64_HP_SIM
>> -depends on IA64 || X86
>> +depends on IA64 || X86 || ARM64
> 
> I still don't understand what the point of enabling ACPI for arm64
> during this series is. Do you get any working arm64 functionality
> (on hardware or model) without subsequent patches? If it's just for
> compilation reasons, the best we could do is depending on (ARM64 &&
> COMPILE_TEST) but even though I would not merge this patch until we have
> most of the arm64 required features in place (some of which are
> introduced by the upcoming ACPI version).

it is ok to me to merge all the patches together, but if Rafael is happy
with the clean up patches (patch 1~3) for ACPI core, they can be merged
first.

> 
>>  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".

Thanks
Hanjun
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Re: [PATCH v4 13/13] ARM64 / ACPI: Enable ARM64 in Kconfig

2014-06-30 Thread Catalin Marinas
On Fri, Jun 27, 2014 at 04:49:36AM +0100, Hanjun Guo wrote:
> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
> index 7de5e3f..33d6dbb 100644
> --- a/drivers/acpi/Kconfig
> +++ b/drivers/acpi/Kconfig
> @@ -8,10 +8,10 @@ config ACPI_SCAN_BIOS_NOT_EFI
>  menuconfig ACPI
>   bool "ACPI (Advanced Configuration and Power Interface) Support"
>   depends on !IA64_HP_SIM
> - depends on IA64 || X86
> + depends on IA64 || X86 || ARM64

I still don't understand what the point of enabling ACPI for arm64
during this series is. Do you get any working arm64 functionality
(on hardware or model) without subsequent patches? If it's just for
compilation reasons, the best we could do is depending on (ARM64 &&
COMPILE_TEST) but even though I would not merge this patch until we have
most of the arm64 required features in place (some of which are
introduced by the upcoming ACPI version).

>   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.

-- 
Catalin
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