06.11.2020 09:15, Viresh Kumar пишет: > Setting regulators for count as 0 doesn't sound good to me. > > But, I understand that you don't want to have that if (have_regulator) > check, and it is a fair request. What I will instead do is, allow all > dev_pm_opp_put*() API to start accepting a NULL pointer for the OPP > table and fail silently. And so you won't be required to have this > unwanted check. But you will be required to save the pointer returned > back by dev_pm_opp_set_regulators(), which is the right thing to do > anyways. Perhaps even a better variant could be to add a devm versions of the OPP API functions, then drivers won't need to care about storing the opp_table pointer if it's unused by drivers.