Hi Randy, On 01/22/2018 09:18 AM, Randy Li wrote: >> > Also the power domain driver could manage the clocks as well, I would > suggest to use pm_runtime_*. actually the clocks required by pm domain may not be the same as what we want to control here, there might be some clocks only be needed when accessing mmu registers. but i'm not very sure about that, will confirm it with Simon Xue.