Messages in this thread | | | Subject | Re: [PATCH v4 1/5] dt-bindings: irqchip: Add PRU-ICSS interrupt controller bindings | From | David Lechner <> | Date | Fri, 31 Jul 2020 09:09:49 -0500 |
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On 7/31/20 6:48 AM, Grzegorz Jaszczyk wrote: > On Wed, 29 Jul 2020 at 19:34, David Lechner <david@lechnology.com> 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?
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