linux-kernel - Re: [PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version

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Message-ID: <CAK-u0Q=zrPhOnkut1vJgAS5DKKRSD2oVxCeZen_6LqvYCR5nCw@mail.gmail.com>
Date:	Thu, 12 May 2016 14:30:26 -0700
From:	"Roy Franz (HPE)" <roy.lists@...il.com>
To:	ahs3@...hat.com
Cc:	Al Stone <al.stone@...aro.org>, linux-doc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org, linaro-acpi@...ts.linaro.org,
	patches@...aro.org, linaro-kernel@...ts.linaro.org
Subject: Re: [PATCH v5 0/1] ARM64: ACPI: Update documentation for latest
 specification version

On Mon, May 2, 2016 at 1:19 PM, Al Stone <ahs3@...hat.com> wrote:
> On 04/25/2016 03:21 PM, Al Stone wrote:
>> The ACPI 6.1 specification was recently released at the end of January
>> 2016, but the arm64 kernel documentation for the use of ACPI was written
>> for the 5.1 version of the spec.  There were significant additions to the
>> spec that had not yet been mentioned -- for example, the 6.0 mechanisms
>> added to make it easier to define processors and low power idle states,
>> as well as the 6.1 addition allowing regular interrupts (not just from
>> GPIO) be used to signal ACPI general purpose events.
>>
>> This patch reflects going back through and examining the specs in detail
>> and updating content appropriately.  Whilst there, a few odds and ends of
>> typos were caught as well.  This brings the documentation up to date with
>> ACPI 6.1 for arm64.
>>
>> Changes for v5:
>>    -- Miscellaneous typos and corrections (Lorenzo Pieralisi)
>>    -- Add linux-acpi@ ML to the distribution list (Alexey Klimov)
>>    -- Corrections to CPPC information (Alexey Klimov)
>>    -- ACK from Lorenzo Pieralisi
>>    -- Updated bibliographic info (Al Stone)
>>
>> Changes for v4:
>>    -- Clarify that IORT can sometimes be optional (Jon Masters).
>>    -- Remove "Use as needed" descriptions of ACPI objects; they provide
>>       no substantive information and doing so simplifies maintenance of
>>       this document over time.  These have been replaced with a simpler
>>       notice that states that unless otherwise noted, do what the ACPI
>>       specification says is needed.
>>    -- Corrected the _OSI object usage recommendation; it described kernel
>>       behavior that does not exist (Al Stone).
>>
>> Changes for v3:
>>    -- Clarify use of _LPI/_RDI (Vikas Sajjan)
>>    -- Whitespace cleanup as pointed out by checkpatch
>>
>> Changes for v2:
>>    -- Clean up white space (Harb Abdulhahmid)
>>    -- Clarification on _CCA usage (Harb Abdulhamid)
>>    -- IORT moved to required from recommended (Hanjun Guo)
>>    -- Clarify IORT description (Hanjun Guo)
>>
>>
>> Al Stone (1):
>>   ARM64: ACPI: Update documentation for latest specification version
>>
>>  Documentation/arm64/acpi_object_usage.txt | 343 ++++++++++++++++--------------
>>  Documentation/arm64/arm-acpi.txt          |  40 ++--
>>  2 files changed, 213 insertions(+), 170 deletions(-)
>>
>
> Ping?  If there are no further comments, can this be pulled in through
> either the documentation or arm64 tree?
>
> Thanks.

I've read through this - looks good to me.  I think it provides useful
guidance to
reference as we work on getting good ACPI support provided by various platforms
under development.

Reviewed-by: Roy Franz <roy.franz@....com>

>
> --
> ciao,
> al
> -----------------------------------
> Al Stone
> Software Engineer
> Red Hat, Inc.
> ahs3@...hat.com
> -----------------------------------
> --
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