cpufreq: scmi: add support for fast frequency switching

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The cpufreq core provides option for drivers to implement fast_switch
callback which is invoked for frequency switching from interrupt context.

This patch adds support for fast_switch callback in SCMI cpufreq driver
by making use of polling based SCMI transfer. It also sets the flag
fast_switch_possible.

Cc: linux-pm@vger.kernel.org
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

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This commit is contained in:

Sudeep Holla 2017-07-20 14:43:07 +01:00

parent 99d6bdf338

commit 02f208c5c6

1 changed files with 18 additions and 0 deletions

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drivers/cpufreq/scmi-cpufreq.c

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