[PATCH v2 18/18] Documentation: ACPI for ARM64

Randy Dunlap rdunlap at infradead.org
Mon Aug 4 13:48:11 PDT 2014


On 08/04/14 08:28, Hanjun Guo wrote:
> From: Graeme Gregory <graeme.gregory at linaro.org>
> 
> Add documentation for the guidelines of how to use ACPI
> on ARM64.
> 
> Signed-off-by: Graeme Gregory <graeme.gregory at linaro.org>
> Signed-off-by: Hanjun Guo <hanjun.guo at linaro.org>
> ---
>  Documentation/arm64/arm-acpi.txt |  215 ++++++++++++++++++++++++++++++++++++++
>  1 file changed, 215 insertions(+)
>  create mode 100644 Documentation/arm64/arm-acpi.txt
> 
> diff --git a/Documentation/arm64/arm-acpi.txt b/Documentation/arm64/arm-acpi.txt
> new file mode 100644
> index 0000000..a6e14a2
> --- /dev/null
> +++ b/Documentation/arm64/arm-acpi.txt
> @@ -0,0 +1,215 @@
> +ACPI on ARMv8 Servers
> +---------------------
> +

...

> +
> +ACPI Detection
> +--------------
> +
> +Drivers should determine their probe() type by checking for ACPI_HANDLE,
> +or .of_node, or other information in the device structure. This is
> +detailed further in the "Driver Recommendations" section.
> +
> +In non-driver code If the presence of ACPI needs to be detected at runtime,
> +then check the value of acpi_disabled. If CONFIG_ACPI not being set,

                                          If CONFIG_ACPI is not set,

> +acpi_disabled will always be 1.
> +
> +Device Enumeration
> +------------------


-- 
~Randy



More information about the linux-arm-kernel mailing list