summaryrefslogtreecommitdiffstats
path: root/drivers/thermal
diff options
context:
space:
mode:
authorViresh Kumar <viresh.kumar@linaro.org>2017-04-25 15:57:17 +0530
committerEduardo Valentin <edubezval@gmail.com>2017-05-27 17:32:37 -0700
commit02bacb21c6575ce408645ddb22fef44940d10257 (patch)
tree148e675552852d5d48c421db59e95d2e6c0047d9 /drivers/thermal
parentb12b6519496bb07b0845ed50eee1ca75c3b7fa81 (diff)
downloadlinux-02bacb21c6575ce408645ddb22fef44940d10257.tar.bz2
thermal: cpu_cooling: OPPs are registered for all CPUs
The OPPs are registered for all CPUs of a cpufreq policy now and we don't need to run the loop in build_dyn_power_table(). Just check for the policy->cpu and we should be fine. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Tested-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/cpu_cooling.c26
1 files changed, 11 insertions, 15 deletions
diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
index 7dddc7443f5d..ce387f62c93e 100644
--- a/drivers/thermal/cpu_cooling.c
+++ b/drivers/thermal/cpu_cooling.c
@@ -83,7 +83,7 @@ struct power_table {
* @dyn_power_table: array of struct power_table for frequency to power
* conversion, sorted in ascending order.
* @dyn_power_table_entries: number of entries in the @dyn_power_table array
- * @cpu_dev: the first cpu_device from @allowed_cpus that has OPPs registered
+ * @cpu_dev: the cpu_device of policy->cpu.
* @plat_get_static_power: callback to calculate the static power
*
* This structure is required for keeping information of each registered
@@ -207,24 +207,20 @@ static int build_dyn_power_table(struct cpufreq_cooling_device *cpufreq_cdev,
struct power_table *power_table;
struct dev_pm_opp *opp;
struct device *dev = NULL;
- int num_opps = 0, cpu, i, ret = 0;
+ int num_opps = 0, cpu = cpufreq_cdev->policy->cpu, i, ret = 0;
unsigned long freq;
- for_each_cpu(cpu, &cpufreq_cdev->allowed_cpus) {
- dev = get_cpu_device(cpu);
- if (!dev) {
- dev_warn(&cpufreq_cdev->cdev->device,
- "No cpu device for cpu %d\n", cpu);
- continue;
- }
-
- num_opps = dev_pm_opp_get_opp_count(dev);
- if (num_opps > 0)
- break;
- else if (num_opps < 0)
- return num_opps;
+ dev = get_cpu_device(cpu);
+ if (unlikely(!dev)) {
+ dev_warn(&cpufreq_cdev->cdev->device,
+ "No cpu device for cpu %d\n", cpu);
+ return -ENODEV;
}
+ num_opps = dev_pm_opp_get_opp_count(dev);
+ if (num_opps < 0)
+ return num_opps;
+
if (num_opps == 0)
return -EINVAL;