diff options
Diffstat (limited to 'target/linux/ipq806x/patches-4.14/0054-cpufreq-dt-Handle-OPP-voltage-adjust-events.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-4.14/0054-cpufreq-dt-Handle-OPP-voltage-adjust-events.patch | 64 |
1 files changed, 32 insertions, 32 deletions
diff --git a/target/linux/ipq806x/patches-4.14/0054-cpufreq-dt-Handle-OPP-voltage-adjust-events.patch b/target/linux/ipq806x/patches-4.14/0054-cpufreq-dt-Handle-OPP-voltage-adjust-events.patch index 47c64eca82..969adfe4b5 100644 --- a/target/linux/ipq806x/patches-4.14/0054-cpufreq-dt-Handle-OPP-voltage-adjust-events.patch +++ b/target/linux/ipq806x/patches-4.14/0054-cpufreq-dt-Handle-OPP-voltage-adjust-events.patch @@ -26,19 +26,19 @@ Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> --- a/drivers/cpufreq/cpufreq-dt.c +++ b/drivers/cpufreq/cpufreq-dt.c @@ -32,6 +32,9 @@ struct private_data { - struct device *cpu_dev; - struct thermal_cooling_device *cdev; - const char *reg_name; + struct device *cpu_dev; + struct thermal_cooling_device *cdev; + const char *reg_name; + struct notifier_block opp_nb; + struct mutex lock; + unsigned long opp_freq; }; - + static struct freq_attr *cpufreq_dt_attr[] = { @@ -43,9 +46,16 @@ static struct freq_attr *cpufreq_dt_attr static int set_target(struct cpufreq_policy *policy, unsigned int index) { - struct private_data *priv = policy->driver_data; + struct private_data *priv = policy->driver_data; + int ret; + unsigned long target_freq = policy->freq_table[index].frequency * 1000; + @@ -47,17 +47,17 @@ Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> + if (!ret) + priv->opp_freq = target_freq; + mutex_unlock(&priv->lock); - + - return dev_pm_opp_set_rate(priv->cpu_dev, - policy->freq_table[index].frequency * 1000); + return ret; } - + /* @@ -86,6 +96,39 @@ node_put: - return name; + return name; } - + +static int opp_notifier(struct notifier_block *nb, unsigned long event, + void *data) +{ @@ -93,39 +93,39 @@ Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> + static int resources_available(void) { - struct device *cpu_dev; + struct device *cpu_dev; @@ -152,6 +195,7 @@ static int cpufreq_init(struct cpufreq_p - bool fallback = false; - const char *name; - int ret; + bool fallback = false; + const char *name; + int ret; + struct srcu_notifier_head *opp_srcu_head; - - cpu_dev = get_cpu_device(policy->cpu); - if (!cpu_dev) { + + cpu_dev = get_cpu_device(policy->cpu); + if (!cpu_dev) { @@ -241,13 +285,16 @@ static int cpufreq_init(struct cpufreq_p - goto out_free_opp; - } - + goto out_free_opp; + } + + mutex_init(&priv->lock); + dev_pm_opp_register_notifier(cpu_dev, &priv->opp_nb); + - 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); + 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_unregister_nb; - } - - priv->cpu_dev = cpu_dev; -@@ -283,6 +343,8 @@ static int cpufreq_init(struct cpufreq_p - + } + + priv->cpu_dev = cpu_dev; +@@ -283,6 +330,8 @@ static int cpufreq_init(struct cpufreq_p + out_free_cpufreq_table: - dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table); + dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table); +out_unregister_nb: + dev_pm_opp_unregister_notifier(cpu_dev, &priv->opp_nb); out_free_priv: - kfree(priv); + kfree(priv); out_free_opp: |