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Groups > linux.kernel > #1691356

[PATCH V3 9/9] cpufreq: Allow dynamic switching with CPUFREQ_ETERNAL latency

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With the recent updates, CPUFREQ_ETERNAL is only used by the drivers
which don't know their transition latency but want to use dynamic
switching.

Anyway, the routine cpufreq_policy_transition_delay_us() caps the value
of transition latency to 10 ms now and that can be used safely with such
platforms.

Remove the check from cpufreq_init_governor() and allow dynamic
switching for such configurations as well.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/cpufreq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index a4d9b47c4af4..c7ae67d6886d 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -2016,8 +2016,7 @@ static int cpufreq_init_governor(struct cpufreq_policy *policy)
 
 	/* Platform doesn't want dynamic frequency switching ? */
 	if (policy->governor->dynamic_switching &&
-	    (cpufreq_driver->flags & CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING ||
-	    policy->cpuinfo.transition_latency == CPUFREQ_ETERNAL)) {
+	    cpufreq_driver->flags & CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING) {
 		struct cpufreq_governor *gov = cpufreq_fallback_governor();
 
 		if (gov) {
-- 
2.13.0.71.gd7076ec9c9cb

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[PATCH V3 0/9] cpufreq: transition-latency cleanups Viresh Kumar <viresh.kumar@linaro.org> - 2017-07-19 12:20 +0200
  [PATCH V3 5/9] cpufreq: arm_big_little: Make ->get_transition_latency() mandatory Viresh Kumar <viresh.kumar@linaro.org> - 2017-07-19 12:20 +0200
  [PATCH V3 9/9] cpufreq: Allow dynamic switching with CPUFREQ_ETERNAL latency Viresh Kumar <viresh.kumar@linaro.org> - 2017-07-19 12:20 +0200
  Re: [PATCH V3 0/9] cpufreq: transition-latency cleanups "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-07-19 15:00 +0200

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