10.08.2021 01:26, Dmitry Osipenko пишет:
> 04.08.2021 13:58, Rajendra Nayak пишет:
>> @@ -2637,6 +2643,8 @@ static int __genpd_dev_pm_attach(struct device *dev, struct device *base_dev,
>> {
>> struct of_phandle_args pd_args;
>> struct generic_pm_domain *pd;
>> + struct device_node *np;
>> + int pstate;
>> int ret;
>>
>> ret = of_parse_phandle_with_args(dev->of_node, "power-domains",
>> @@ -2675,10 +2683,26 @@ static int __genpd_dev_pm_attach(struct device *dev, struct device *base_dev,
>> genpd_unlock(pd);
>> }
>>
>> - if (ret)
>> + if (ret) {
>> genpd_remove_device(pd, dev);
>> + return -EPROBE_DEFER;
>> + }
>> +
>> + /* Set the default performance state */
>> + np = dev->of_node;
>> + if (of_parse_phandle(np, "required-opps", index)) {
>> + pstate = of_get_required_opp_performance_state(np, index);
>> + if (pstate < 0) {
>> + ret = pstate;
>> + dev_err(dev, "failed to set required performance state for power-domain %s: %d\n",
>> + pd->name, ret);
>> + } else {
>> + dev_pm_genpd_set_performance_state(dev, pstate);
Where is error handling?
>> + dev_gpd_data(dev)->default_pstate = pstate;
>> + }
>> + }
>
> Why performance state is set after genpd_power_on()?
>
