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

Merge branch 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm into pm-opp

Browse Source 
Pull more operating performance points (OPP) framework updates for 4.20
from Viresh Kumar:

"That contains some important fixes reported recently."

* 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
  PM / OPP: _of_add_opp_table_v2(): increment count only if OPP is added
  cpufreq: dt: Try freeing static OPPs only if we have added them
  OPP: Return error on error from dev_pm_opp_get_opp_count()
  OPP: Improve error handling in dev_pm_opp_of_cpumask_add_table()
This commit is contained in:
Rafael J. Wysocki
2018-10-08 08:44:55 +02:00
parent fb64207bf5 deac8703da
commit c2dc121c64
3 changed files with 52 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
drivers/cpufreq/cpufreq-dt.c
View File

@@ -32,6 +32,7 @@ struct private_data {
struct device *cpu_dev;
struct thermal_cooling_device *cdev;
const char *reg_name;
bool have_static_opps;
};
static struct freq_attr *cpufreq_dt_attr[] = {
@@ -204,6 +205,15 @@ static int cpufreq_init(struct cpufreq_policy *policy)
}
}
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv) {
ret = -ENOMEM;
goto out_put_regulator;
}
priv->reg_name = name;
priv->opp_table = opp_table;
/*
* Initialize OPP tables for all policy->cpus. They will be shared by
* all CPUs which have marked their CPUs shared with OPP bindings.
@@ -214,7 +224,8 @@ static int cpufreq_init(struct cpufreq_policy *policy)
*
* OPPs might be populated at runtime, don't check for error here
*/
dev_pm_opp_of_cpumask_add_table(policy->cpus);
if (!dev_pm_opp_of_cpumask_add_table(policy->cpus))
priv->have_static_opps = true;
/*
* But we need OPP table to function so if it is not there let's
@@ -240,19 +251,10 @@ static int cpufreq_init(struct cpufreq_policy *policy)
__func__, ret);
}
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv) {
ret = -ENOMEM;
goto out_free_opp;
}
priv->reg_name = name;
priv->opp_table = opp_table;
ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table);
if (ret) {
dev_err(cpu_dev, "failed to init cpufreq table: %d\n", ret);
goto out_free_priv;
goto out_free_opp;
}
priv->cpu_dev = cpu_dev;
@@ -282,10 +284,11 @@ static int cpufreq_init(struct cpufreq_policy *policy)
out_free_cpufreq_table:
dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
out_free_priv:
kfree(priv);
out_free_opp:
dev_pm_opp_of_cpumask_remove_table(policy->cpus);
if (priv->have_static_opps)
dev_pm_opp_of_cpumask_remove_table(policy->cpus);
kfree(priv);
out_put_regulator:
if (name)
dev_pm_opp_put_regulators(opp_table);
out_put_clk:
@@ -300,7 +303,8 @@ static int cpufreq_exit(struct cpufreq_policy *policy)
cpufreq_cooling_unregister(priv->cdev);
dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &policy->freq_table);
dev_pm_opp_of_cpumask_remove_table(policy->related_cpus);
if (priv->have_static_opps)
dev_pm_opp_of_cpumask_remove_table(policy->related_cpus);
if (priv->reg_name)
dev_pm_opp_put_regulators(priv->opp_table);