linux-kernel - Re: [PATCH v2 18/18] Documentation: ACPI for ARM64

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Message-ID: <53DFF18B.5080509@infradead.org>
Date:	Mon, 04 Aug 2014 13:48:11 -0700
From:	Randy Dunlap <rdunlap@...radead.org>
To:	Hanjun Guo <hanjun.guo@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Mark Rutland <mark.rutland@....com>
CC:	Graeme Gregory <graeme.gregory@...aro.org>,
	Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
	Grant Likely <grant.likely@...aro.org>,
	Sudeep Holla <Sudeep.Holla@....com>,
	Will Deacon <will.deacon@....com>,
	Jason Cooper <jason@...edaemon.net>,
	Marc Zyngier <marc.zyngier@....com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>,
	Robert Richter <rric@...nel.org>,
	Lv Zheng <lv.zheng@...el.com>,
	Robert Moore <robert.moore@...el.com>,
	Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>,
	Liviu Dudau <Liviu.Dudau@....com>,
	Charles.Garcia-Tobin@....com, linux-acpi@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linaro-acpi@...ts.linaro.org
Subject: Re: [PATCH v2 18/18] Documentation: ACPI for ARM64

On 08/04/14 08:28, Hanjun Guo wrote:
> From: Graeme Gregory <graeme.gregory@...aro.org>
> 
> Add documentation for the guidelines of how to use ACPI
> on ARM64.
> 
> Signed-off-by: Graeme Gregory <graeme.gregory@...aro.org>
> Signed-off-by: Hanjun Guo <hanjun.guo@...aro.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
--
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