firmware: arm_scmi: Add fast_switch_possible() interface

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Add a new fast_switch_possible interface to the existing perf_ops to
export the information of whether or not fast_switch is possible for a
given device.

This can be used by the cpufreq driver and framework to choose proper
mechanism for frequency change.

Link: https://lore.kernel.org/r/20200617094332.8391-1-nicola.mazzucato@arm.com
Suggested-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Nicola Mazzucato <nicola.mazzucato@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

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Nicola Mazzucato 2020-06-17 10:43:31 +01:00 • committed by Sudeep Holla

parent bad0d73b65

commit 1909872ff2

2 changed files with 14 additions and 0 deletions

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12

drivers/firmware/arm_scmi/perf.c

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2

include/linux/scmi_protocol.h

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