PCI binding: External interrupt-parent about dt-schema HOT 4 OPEN

You need an interrupt-map in the PCI host bridge to map the PCI interrupts to the &pic.

from dt-schema.

You need an interrupt-map in the PCI host bridge to map the PCI interrupts to the &pic.

It's pretty hard to do it this way due to limitations on granularity of interrupt-map, our pci_bridges have different-ish mapping rule.

Also some devices have more than one interrupts from devicetree.

from dt-schema.

So you are saying the PCI interrupt for the device has no effect? Or you have both PCI interrupts and some sideband interrupts?

from dt-schema.

So you are saying the PCI interrupt for the device has no effect? Or you have both PCI interrupts and some sideband interrupts?

PCI interrupt from the device has no effect. Some of devices are not using standard PCI interrupt delivery. Only PCI to PCI bridges under the host controller are using standard PCI legacy interrupt.

from dt-schema.