Commit 38eb08f9 authored Jul 29, 2015 by Viresh Kumar Committed by Alex Shi Nov 02, 2015

cpufreq: dt: Add support for turbo/boost mode



With opp-v2 DT bindings, few OPPs can be used only for the boost mode.
But using such OPPs require the boost mode to be supported by cpufreq
driver.

We will parse DT bindings only during ->init() and so can enable boost
support only after registering cpufreq driver.

This enables boost support as soon as any policy has boost/turbo OPPs
for its CPUs.

We don't need to disable boost support as that is done by the core, when
the driver is unregistered.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
(cherry picked from commit d15fa86276e8515443251c0d18930e392bc5afc5)
Signed-off-by: Alex Shi <alex.shi@linaro.org>

parent a45547c2

drivers/cpufreq/cpufreq-dt.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -330,6 +330,14 @@ static int cpufreq_init(struct cpufreq_policy *policy)
		goto out_free_cpufreq_table;
		}

		/* Support turbo/boost mode */
		if (policy_has_boost_freq(policy)) {
		/* This gets disabled by core on driver unregister */
		ret = cpufreq_enable_boost_support();
		if (ret)
		goto out_free_cpufreq_table;
		}

		policy->cpuinfo.transition_latency = transition_latency;

		of_node_put(np);