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    SubjectRe: [PATCH v5 0/1] ARM64: ACPI: Update documentation for latest specification version
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    On Mon, May 2, 2016 at 1:19 PM, Al Stone <ahs3@redhat.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@hpe.com>

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