xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

thermal: cpu_cooling: use cpufreq_policy to register cooling device

Browse Source 
The CPU cooling driver uses the cpufreq policy, to get clip_cpus, the
frequency table, etc. Most of the callers of CPU cooling driver's
registration routines have the cpufreq policy with them, but they only
pass the policy->related_cpus cpumask. The __cpufreq_cooling_register()
routine then gets the policy by itself and uses it.

It would be much better if the callers can pass the policy instead
directly. This also fixes a basic design flaw, where the policy can be
freed while the CPU cooling driver is still active.

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>
This commit is contained in:
Viresh Kumar
2017-04-25 15:57:14 +05:30
committed by Eduardo Valentin
parent 18f301c934
commit 4d753aa7b6
9 changed files with 74 additions and 70 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/cpufreq/cpufreq-dt.c
View File

@@ -326,7 +326,7 @@ static void cpufreq_ready(struct cpufreq_policy *policy)
&power_coefficient);
priv->cdev = of_cpufreq_power_cooling_register(np,
policy->related_cpus, power_coefficient, NULL);
policy, power_coefficient, NULL);
if (IS_ERR(priv->cdev)) {
dev_err(priv->cpu_dev,
"running cpufreq without cooling device: %ld\n",