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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-09-04 00:05:22 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-09-04 00:05:22 +0200
commit08a10002bed151f6df201715adb80c1c5e7fe7ca (patch)
treea9d53ec2b6f5b1921a614f2d4bd70fb6c3a0d42f /drivers/cpufreq/cpufreq.c
parentMerge branch 'pm-cpufreq' (diff)
parentcpufreq: schedutil: Always process remote callback with slow switching (diff)
downloadlinux-dev-08a10002bed151f6df201715adb80c1c5e7fe7ca.tar.xz
linux-dev-08a10002bed151f6df201715adb80c1c5e7fe7ca.zip
Merge branch 'pm-cpufreq-sched'
* pm-cpufreq-sched: cpufreq: schedutil: Always process remote callback with slow switching cpufreq: schedutil: Don't restrict kthread to related_cpus unnecessarily cpufreq: Return 0 from ->fast_switch() on errors cpufreq: Simplify cpufreq_can_do_remote_dvfs() cpufreq: Process remote callbacks from any CPU if the platform permits sched: cpufreq: Allow remote cpufreq callbacks cpufreq: schedutil: Use unsigned int for iowait boost cpufreq: schedutil: Make iowait boost more energy efficient
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
-rw-r--r--drivers/cpufreq/cpufreq.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index c7ae67d6886d..ea43b147a7fe 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1843,9 +1843,10 @@ EXPORT_SYMBOL(cpufreq_unregister_notifier);
* twice in parallel for the same policy and that it will never be called in
* parallel with either ->target() or ->target_index() for the same policy.
*
- * If CPUFREQ_ENTRY_INVALID is returned by the driver's ->fast_switch()
- * callback to indicate an error condition, the hardware configuration must be
- * preserved.
+ * Returns the actual frequency set for the CPU.
+ *
+ * If 0 is returned by the driver's ->fast_switch() callback to indicate an
+ * error condition, the hardware configuration must be preserved.
*/
unsigned int cpufreq_driver_fast_switch(struct cpufreq_policy *policy,
unsigned int target_freq)