11.08.2021 12:45, Rajendra Nayak пишет: >> >> If you have more than one power domain, then this will override the >> pstate which was set for a previous domain. This code doesn't feel solid >> to me, at least a clarifying comment is needed about how it's supposed >> to work. > > I don't quite understand the concern here, this should work with devices > having multiple power-domains as well. __genpd_dev_pm_attach gets called > once per power-domain, and we use the index above to identify the > power-domain. The domain core code supports only one domain per device, see what genpd_set_performance_state() does. This means that the second domain will set the state of the *first* domain, which doesn't make sense. The genpd_set_performance_state() will actually fail with -ENODEV for all domains if you will try to do that.
