On Friday 13 Mar 2020 at 17:11:45 (+0000), Lukasz Luba wrote:
> --------------------------------->8----------------
> dev_pm_opp_of_register_em
> ...
> 	nr_opp = dev_pm_opp_get_opp_count(dev);
> 	if (nr_opp <= 0) {
> 		ret = -EINVAL;
> 		goto fail;
> 	}
> 
> ...
> 	ret = em_register_perf_domain()
> 	if (ret)
> 		goto fail;
> 
> 	return 0;
> 
> fail:
> 	dev_dbg(cpu_dev, "Couldn't register Energy Model %d\n", ret);
> 	return ret
> ------------------------8<-----------------

That works for me.

Thanks,
Quentin