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PSCI firmware v1.0+, supports two different modes for CPU_SUSPEND. The Platform Coordinated mode, which is the default and mandatory mode, while support for the OS initiated (OSI) mode is optional. In some cases it's interesting for the user/developer to know if the OSI mode is supported by the PSCI FW, so print a message to the log if that is the case. Co-developed-by: Lina Iyer <lina.iyer@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>