On Fri, 31 Jul 2020 at 16:09, David Lechner <david@xxxxxxxxxxxxxx> wrote: > > On 7/31/20 6:48 AM, Grzegorz Jaszczyk wrote: > > On Wed, 29 Jul 2020 at 19:34, David Lechner <david@xxxxxxxxxxxxxx> wrote: > >> It is not clear what the meaning of each cell is. Looking at later patches, it > >> looks like the first cell is the PRU system event number, the second cell is the > >> channel and the third cell is the host event number. > > > > Ok, how about updating above description like this: > > Client users shall use the PRU System event number (the interrupt source > > that the client is interested in) [cell 1], PRU channel [cell 2] and PRU > > host_intr (target) [cell 3] as the value of the interrupts property in their > > node. The system events can be mapped to some output host interrupts through 2 > > levels of many-to-one mapping i.e. events to channel mapping and channels to > > host interrupts so through this property entire mapping is provided. > > Cell 3 is host_intr0-7? How would we map to other host events? Again this is due to misleading TRM nomenclature: host_intr vs host interrupts (one that we discuss in patch #2). I will use "and PRU host event (target) [cell 3]...". Sorry for my mistake. Thank you, Grzegorz
