On Tue, Dec 11, 2018 at 6:27 PM Rob Herring <robh@xxxxxxxxxx> wrote: > On Sat, Dec 1, 2018 at 3:17 PM Jacek Anaszewski > <jacek.anaszewski@xxxxxxxxx> wrote: > > This is not true in case of associations where LED controller is > > an independent device, as in Pavel's example [0]. > > I'm not really following how the HDD example is different. The parent > of an LED would be the controller. The link to the led node would be > in the disk controller node. Though maybe if things get complicated > enough, we'd want to describe the drives or drive bays in DT. Not talking about this in specific, but I will need to add DT bindings for ATA master/slave, in order to add a temperature zone for each drive (one sensor in each drive) in my in-progress hwmon-over-SCSI-emulation-ATA-sensors such that: ata-controller { ata-master { }; ata-slave { }; }; I haven't looked closer at this topology yet, but we definatelt need nodes for each physical connector out of an ATA master, somehow, so they can act as a sensor/temperature zone. Yours, Linus Walleij