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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2017-07-19 12:12:42 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-07-22 02:25:20 +0200 |
| commit | aa7519af450d3c62a057aece24877c34562fa25a (patch) | |
| tree | 664a918cbe1bcd0de3e162f247197946ff578001 /drivers/cpufreq/cpufreq_governor.c | |
| parent | cpufreq: governor: Drop min_sampling_rate (diff) | |
| download | linux-aa7519af450d3c62a057aece24877c34562fa25a.tar.xz linux-aa7519af450d3c62a057aece24877c34562fa25a.zip | |
cpufreq: Use transition_delay_us for legacy governors as well
The policy->transition_delay_us field is used only by the schedutil
governor currently, and this field describes how fast the driver wants
the cpufreq governor to change CPUs frequency. It should rather be a
common thing across all governors, as it doesn't have any schedutil
dependency here.
Create a new helper cpufreq_policy_transition_delay_us() to get the
transition delay across all governors.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/cpufreq_governor.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq_governor.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c index 858081f9c3d7..eed069ecfd5e 100644 --- a/drivers/cpufreq/cpufreq_governor.c +++ b/drivers/cpufreq/cpufreq_governor.c @@ -389,7 +389,6 @@ int cpufreq_dbs_governor_init(struct cpufreq_policy *policy) struct dbs_governor *gov = dbs_governor_of(policy); struct dbs_data *dbs_data; struct policy_dbs_info *policy_dbs; - unsigned int latency; int ret = 0; /* State should be equivalent to EXIT */ @@ -428,13 +427,7 @@ int cpufreq_dbs_governor_init(struct cpufreq_policy *policy) if (ret) goto free_policy_dbs_info; - /* policy latency is in ns. Convert it to us first */ - latency = policy->cpuinfo.transition_latency / 1000; - if (latency == 0) - latency = 1; - - /* Bring kernel and HW constraints together */ - dbs_data->sampling_rate = LATENCY_MULTIPLIER * latency; + dbs_data->sampling_rate = cpufreq_policy_transition_delay_us(policy); if (!have_governor_per_policy()) gov->gdbs_data = dbs_data; |