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    Subject[PATCH 2/3] ACPICA: Fix access width for reset vector
    Date
    Section 4.7.3.6 of the ACPI specification requires that the register width
    of the reset vector be 8 bits. Windows simply hardcodes the access to be
    a byte and ignores the width provided in the FADT, so make sure that we
    do the same.

    Signed-off-by: Matthew Garrett <mjg@redhat.com>
    ---
    drivers/acpi/acpica/hwxface.c | 5 ++---
    1 files changed, 2 insertions(+), 3 deletions(-)

    diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c
    index 50cc3be..c6a4e63 100644
    --- a/drivers/acpi/acpica/hwxface.c
    +++ b/drivers/acpi/acpica/hwxface.c
    @@ -82,12 +82,11 @@ acpi_status acpi_reset(void)
    /*
    * For I/O space, write directly to the OSL. This bypasses the port
    * validation mechanism, which may block a valid write to the reset
    - * register.
    + * register. Spec section 4.7.3.6 requires register width to be 8.
    */
    status =
    acpi_os_write_port((acpi_io_address) reset_reg->address,
    - acpi_gbl_FADT.reset_value,
    - reset_reg->bit_width);
    + acpi_gbl_FADT.reset_value, 8)
    } else {
    /* Write the reset value to the reset register */

    --
    1.7.3.2


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