Hi Robin, > From: Robin Murphy, Sent: Wednesday, April 15, 2020 2:16 AM > > On 2020-04-13 11:25 am, Yoshihiro Shimoda wrote: > [...] > > -Each bus master connected to an IPMMU must reference the IPMMU in its device > > -node with the following property: > > - > > - - iommus: A reference to the IPMMU in two cells. The first cell is a phandle > > - to the IPMMU and the second cell the number of the micro-TLB that the > > - device is connected to. > > This definition of what the phandle argument means... > > [...] > > + '#iommu-cells': > > + const: 1 > > + > > ...deserves to be captured in a description here. Thank you for the comment! I'll fix this. Best regards, Yoshihiro Shimoda > Robin.