On 8/29/2024 11:52 AM, Rob Herring wrote: > On Wed, Aug 28, 2024 at 01:37:20PM -0700, Nikunj Kela wrote: >> 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]." >> Qualcomm SA8255p platform uses extended SPI for SCMI 'a2p' doorbells. >> >> Signed-off-by: Nikunj Kela <quic_nkela@xxxxxxxxxxx> >> --- >> include/dt-bindings/interrupt-controller/arm-gic.h | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/include/dt-bindings/interrupt-controller/arm-gic.h b/include/dt-bindings/interrupt-controller/arm-gic.h >> index 35b6f69b7db6..9c06248446b7 100644 >> --- a/include/dt-bindings/interrupt-controller/arm-gic.h >> +++ b/include/dt-bindings/interrupt-controller/arm-gic.h >> @@ -12,6 +12,7 @@ >> >> #define GIC_SPI 0 >> #define GIC_PPI 1 >> +#define GIC_ESPI 2 >> >> /* >> * Interrupt specifier cell 2. >> -- >> 2.34.1 >>
