On Wed, Feb 25, 2015 at 04:39:49PM +0800, Hanjun Guo wrote: > From: Al Stone <al.stone@xxxxxxxxxx> > > 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@xxxxxxx> > CC: Will Deacon <will.deacon@xxxxxxx> > CC: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx> > Signed-off-by: Al Stone <al.stone@xxxxxxxxxx> > Signed-off-by: Graeme Gregory <graeme.gregory@xxxxxxxxxx> > Signed-off-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx> > Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> Acked-by: Olof Johansson <olof@xxxxxxxxx> -Olof -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html