Hello Viresh,
On 1/9/2019 2:24 PM, Viresh Kumar wrote:
On 09-01-19, 13:37, Taniya Das wrote:
@@ -98,6 +107,8 @@ static int qcom_cpufreq_hw_read_lut(struct device *dev,
You are only using this "dev" parameter for dev_dbg(), instead of that
pass cpu_dev pointer.
Sure, will clean it up to use cpu_dev.
table[i].frequency = CPUFREQ_ENTRY_INVALID;
} else {
table[i].frequency = freq;
+ dev_pm_opp_add(get_cpu_device(policy->cpu),
+ freq * 1000, volt);
dev_dbg(dev, "index=%d freq=%d, core_count %d\n", i,
freq, core_count);
}
@@ -116,6 +127,8 @@ static int qcom_cpufreq_hw_read_lut(struct device *dev,
if (prev_cc != max_cores) {
prev->frequency = prev_freq;
prev->flags = CPUFREQ_BOOST_FREQ;
+ dev_pm_opp_add(get_cpu_device(policy->cpu),
+ prev_freq * 1000, volt);
}
break;
@@ -127,6 +140,7 @@ static int qcom_cpufreq_hw_read_lut(struct device *dev,
table[i].frequency = CPUFREQ_TABLE_END;
policy->freq_table = table;
+ dev_pm_opp_set_sharing_cpus(get_cpu_device(policy->cpu), policy->cpus);
and then all the above sites can be simplified a bit.
return 0;
}
@@ -159,10 +173,18 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy)
struct device *dev = &global_pdev->dev;
struct of_phandle_args args;
struct device_node *cpu_np;
+ struct device *cpu_dev;
struct resource *res;
void __iomem *base;
int ret, index;
+ cpu_dev = get_cpu_device(policy->cpu);
+ if (!cpu_dev) {
+ pr_err("%s: failed to get cpu%d device\n", __func__,
+ policy->cpu);
+ return -ENODEV;
+ }
+
cpu_np = of_cpu_device_node_get(policy->cpu);
if (!cpu_np)
return -EINVAL;
@@ -205,6 +227,12 @@ static int qcom_cpufreq_hw_cpu_init(struct cpufreq_policy *policy)
goto error;
}
+ ret = dev_pm_opp_get_opp_count(cpu_dev);
+ if (ret <= 0) {
+ dev_err(cpu_dev, "OPP table is not ready\n");
Rather say "Failed to add OPPs\n".
Sure will update it.
+ goto error;
+ }
+
policy->fast_switch_possible = true;
return 0;
@@ -217,6 +245,7 @@ static int qcom_cpufreq_hw_cpu_exit(struct cpufreq_policy *policy)
{
void __iomem *base = policy->driver_data - REG_PERF_STATE;
+ dev_pm_opp_remove_all_dynamic(&global_pdev->dev);
This is platform device's device structure, while you added the OPPs
using cpu_dev. You sure this will work ?
Hmm, yeah, would update it in the next patch.
kfree(policy->freq_table);
devm_iounmap(&global_pdev->dev, base);
--
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of the Code Aurora Forum, hosted by the Linux Foundation.
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation.
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