----- Ursprüngliche Mail ----- >> > This streamlines device tree and allows to anchor >> > runtime power management on master device in all cases. >> >> Please explain in more detail why this is needed. >> If this change makes the overall situation better and breaks >> no userspace, I'm happy. :-) >> > > The rest of the series is a driver that need runtime power management. > Absence of the master device breaks power management logic, > as kernel automatically propagates state from children to parent. > I initially hooked runtime_pm on chip auxiliary device, but this is a hack, > not a solution. So, the problem is that mtd partitions don't have a common parent/master like we have for generic disks? Please give more details. We have already a non-optimal situation in mtd and I want to fully understand the requirements to get it this time right. Thanks, //richard