summaryrefslogtreecommitdiff
path: root/drivers/cpufreq/cpufreq.c
diff options
context:
space:
mode:
authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-05-06 22:01:14 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-05-06 22:01:14 +0200
commitda43af961b50f1b6367660c0dba0b5fd205c4217 (patch)
tree2f0d60beae3b2a3c5f1d2441e24e90104dc010f9 /drivers/cpufreq/cpufreq.c
parent9485e4ca0b486248ce07d7dd1411a1080d24ed0d (diff)
parent6d45b719cbd51f014bb1b5dd8ed99068d78d36af (diff)
Merge cpufreq fixes going into v4.6.
* pm-cpufreq-fixes: intel_pstate: Fix intel_pstate_get() cpufreq: intel_pstate: Fix HWP on boot CPU after system resume cpufreq: st: enable selective initialization based on the platform cpufreq: intel_pstate: Fix processing for turbo activation ratio
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
-rw-r--r--drivers/cpufreq/cpufreq.c26
1 files changed, 15 insertions, 11 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index a48b998b3304..035513b012ee 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1631,21 +1631,25 @@ void cpufreq_suspend(void)
if (!cpufreq_driver)
return;
- if (!has_target())
+ if (!has_target() && !cpufreq_driver->suspend)
goto suspend;
pr_debug("%s: Suspending Governors\n", __func__);
for_each_active_policy(policy) {
- down_write(&policy->rwsem);
- ret = cpufreq_governor(policy, CPUFREQ_GOV_STOP);
- up_write(&policy->rwsem);
+ if (has_target()) {
+ down_write(&policy->rwsem);
+ ret = cpufreq_governor(policy, CPUFREQ_GOV_STOP);
+ up_write(&policy->rwsem);
- if (ret)
- pr_err("%s: Failed to stop governor for policy: %p\n",
- __func__, policy);
- else if (cpufreq_driver->suspend
- && cpufreq_driver->suspend(policy))
+ if (ret) {
+ pr_err("%s: Failed to stop governor for policy: %p\n",
+ __func__, policy);
+ continue;
+ }
+ }
+
+ if (cpufreq_driver->suspend && cpufreq_driver->suspend(policy))
pr_err("%s: Failed to suspend driver: %p\n", __func__,
policy);
}
@@ -1670,7 +1674,7 @@ void cpufreq_resume(void)
cpufreq_suspended = false;
- if (!has_target())
+ if (!has_target() && !cpufreq_driver->resume)
return;
pr_debug("%s: Resuming Governors\n", __func__);
@@ -1679,7 +1683,7 @@ void cpufreq_resume(void)
if (cpufreq_driver->resume && cpufreq_driver->resume(policy)) {
pr_err("%s: Failed to resume driver: %p\n", __func__,
policy);
- } else {
+ } else if (has_target()) {
down_write(&policy->rwsem);
ret = cpufreq_start_governor(policy);
up_write(&policy->rwsem);