Al Stone b10d79f760 ARM64 / ACPI: Introduce early_param "acpi=" to enable/disable ACPI ... This implements the following policy to decide whether ACPI should be used to boot the system: - acpi=off: ACPI will not be used to boot the system, even if there is no alternative available (e.g., device tree is empty) - acpi=force: only ACPI will be used to boot the system; if that fails, there will be no fallback to alternative methods (such as device tree) - otherwise, ACPI will be used as a fallback if the device tree turns out to lack a platform description; the heuristic to decide this is whether /chosen is the only node present at depth 1 CC: Catalin Marinas <catalin.marinas@arm.com> CC: Will Deacon <will.deacon@arm.com> CC: Rafael J. Wysocki <rjw@rjwysocki.net> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Grant Likely <grant.likely@linaro.org> Tested-by: Timur Tabi <timur@codeaurora.org> Signed-off-by: Al Stone <al.stone@linaro.org> Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>		2015-03-25 11:49:31 +00:00
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asm	ARM64 / ACPI: Introduce early_param "acpi=" to enable/disable ACPI	2015-03-25 11:49:31 +00:00
uapi/asm	Fairly small update, but there are some interesting new features.	2015-02-13 09:55:09 -08:00