On 8/30/2024 7:44 AM, Rob Herring wrote:

On Thu, Aug 29, 2024 at 2:02 PM Nikunj Kela [off-list ref] wrote:

quoted

On 8/29/2024 11:52 AM, Rob Herring wrote:

quoted

On Wed, Aug 28, 2024 at 01:37:20PM -0700, Nikunj Kela wrote:

quoted

Add interrupt specifier for extended SPI interrupts.

What's an "extended SPI"? Is this a GIC spec thing? If so, what version?

Extended SPI is an extended range of SPI interrupts supported by GIC.

Excerpt below from
Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml

"The 1st cell is the interrupt type; 0 for SPI interrupts, 1 for PPI
interrupts, 2 for interrupts in the Extended SPI range, 3 for the
Extended PPI range. Other values are reserved for future use."

"The 2nd cell contains the interrupt number for the interrupt type. SPI
interrupts are in the range [0-987]. PPI interrupts are in the range
[0-15]. Extented SPI interrupts are in the range [0-1023]. Extended PPI
interrupts are in the range [0-127]."

Looks like you should add EPPI define too while you're here.

Rob

Sure Rob. I can add that. Generally, there is an ask for a usecase
before we push anything that is used in DT. I won't have any usecase to
show for EPPI.