Re: [PATCH v2 00/10] Add support for TISCI irqchip drivers

Santosh Shilimkar
2018-10-22T20:39:37Z

On 10/18/2018 8:40 AM, Lokesh Vutla wrote:
> TISCI abstracts the handling of IRQ routes where interrupt sources
> are not directly connected to host interrupt controller. This series
> adds support for:
> - TISCI commands needed for IRQ configuration
> - Interrupt Router(INTR) and Interrupt Aggregator(INTA) drivers
>
> More information on TISCI IRQ management can be found here[1].
> Complete TISCI resource management information can be found here[2].
> AM65x SoC related TISCI information can be found here[3].
> INTR and INTA related information can be found in TRM[4].
>
I didn't read the specs but from what you described in
INTA and INTR bindings, does the flow of IRQs like below ?

Device IRQ(e.g USB) -->INTR-->INTA--->HOST IRQ controller(GIC)

The confusing part is aggregator and can multiplex as well
as grouping but seems like its event grouping or multiplexing
than actual device IRQ grouping or multi-plexsing.

What am I missing ?

Regards,S
antosh