Subject: [PATCH 6/6] PCI: generic: Allow bus default MSI controller to be specified.

From: [email-masked] (Will Deacon)
Date: Tue, 15 Sep 2015 18:53:27 +0100

On Sat, Sep 12, 2015 at 12:21:59AM +0100, David Daney wrote:
> From: David Daney <[email-masked]>
> 
> If the device tree node for the bus has a "msi-parent" property, use
> that as the default MSI controller for devices on the bus.  Add device
> tree binding documentation describing the new property.
> 
> This allows the pci-host-generic driver to be used in systems with
> multiple MSI controllers.
> 
> Signed-off-by: David Daney <[email-masked]>
> ---
>  .../devicetree/bindings/pci/host-generic-pci.txt          |  5 +++++
>  drivers/pci/host/pci-host-generic.c                       | 15 +++++++++++++--
>  2 files changed, 18 insertions(+), 2 deletions(-)

I don't think you need this anymore with 4.3-rc1. The core IRQ subsystem
should take care of parsing and configuring the MSI parents.

Will