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Date: Tue, 15 Sep 2015 18:53:27 +0100
From: Will Deacon <will.deacon@arm.com>
To: David Daney <ddaney.cavm@gmail.com>
Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
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        Kumar Gala <galak@codeaurora.org>,
        "linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
        David Daney <david.daney@cavium.com>, lorenzo.pieralisi@arm.com,
        marc.zyngier@arm.com
Subject: Re: [PATCH 6/6] PCI: generic: Allow bus default MSI controller to be
 specified.
Message-ID: <20150915175327.GM31157@arm.com>
References: <1442013719-5001-1-git-send-email-ddaney.cavm@gmail.com>
 <1442013719-5001-7-git-send-email-ddaney.cavm@gmail.com>
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On Sat, Sep 12, 2015 at 12:21:59AM +0100, David Daney wrote:
> From: David Daney <david.daney@cavium.com>
> 
> 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 <david.daney@cavium.com>
> ---
>  .../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