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authorViresh Kumar <viresh.kumar@linaro.org>2013-04-30 14:32:17 +0000
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-05-12 14:04:16 +0200
commita97c98adddbe98e824b69e6d7b320c8dc91fe581 (patch)
tree2811ba6a9cbc3e594a74734c5c69a6a3e6683d52 /drivers/cpufreq/cpufreq_governor.h
parent2b80f3138e8470194745a6b954b4905060ab4067 (diff)
cpufreq: governors: Fix CPUFREQ_GOV_POLICY_{INIT|EXIT} notifiers
There are two types of INIT/EXIT activities that we need to do for governors: - Done only once per governor (doesn't depend how many instances of the governor there are). eg: cpufreq_register_notifier() for conservative governor. - Done per governor instance, eg: sysfs_{create|remove}_group(). There were some corner cases where current code isn't able to handle them separately and so failing for some test cases. We use two separate variables now for keeping track of above two requirements. - governor->initialized for first one - dbs_data->usage_count for per governor instance 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.h')
-rw-r--r--drivers/cpufreq/cpufreq_governor.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index 8ac33538d0bd..e16a96130cb3 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -211,6 +211,7 @@ struct common_dbs_data {
struct dbs_data {
struct common_dbs_data *cdata;
unsigned int min_sampling_rate;
+ int usage_count;
void *tuners;
/* dbs_mutex protects dbs_enable in governor start/stop */