Hi Simon > > I didn't check real board, > > but I guess current SMSC IRQ came from IRQC, > > and this IRQC needs MSTP 407. > > But IRQC driver seems doesn't support PM_RUNTIME at this point. > > > > Does your issue solve by adding MSTP 407 with CLK_ENABLE_ON_INIT ? > > I'm not sure this is good solution, but quick-hack > > Thanks! > > I will post a patch to add pm_runtime support to the IRQC Driver. > It seems to allow SMSC + RUNTIME_PM to function on the APE6EVM. Cool !! Thanks Best regards --- Kuninori Morimoto