Re: [PATCH v2 17/19] PCI: of_property: Add interrupt-controller property in PCI device nodes

On Thu, Jun 06, 2024 at 02:26:12PM -0500, Bjorn Helgaas wrote:

On Mon, May 27, 2024 at 06:14:44PM +0200, Herve Codina wrote:

quoted

PCI devices and bridges DT nodes created during the PCI scan are created
with the interrupt-map property set to handle interrupts.

In order to set this interrupt-map property at a specific level, a
phandle to the parent interrupt controller is needed. On systems that
are not fully described by a device-tree, the parent interrupt
controller may be unavailable (i.e. not described by the device-tree).

As mentioned in the [1], avoiding the use of the interrupt-map property
and considering a PCI device as an interrupt controller itself avoid the
use of a parent interrupt phandle.

In that case, the PCI device itself as an interrupt controller is
responsible for routing the interrupts described in the device-tree
world (DT overlay) to the PCI interrupts.

Add the 'interrupt-controller' property in the PCI device DT node.

[1]: https://lore.kernel.org/lkml/CAL_Jsq+je7+9ATR=B6jXHjEJHjn24vQFs4Tvi9=vhDeK9n42Aw@mail.gmail.com/ (local)

Signed-off-by: Herve Codina <herve.codina@bootlin.com>

No objection from me, but I'd like an ack/review from Rob.

Given it is more DT patches in the series, how about I take them and 
this one with your ack instead?

Rob