From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Fri, 22 Mar 2013 09:30:27 +0000 From: Andrew Murray To: Thierry Reding Cc: Bjorn Helgaas , Arnd Bergmann , "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [RFC 0/2] PCI: Introduce MSI chip infrastructure Message-ID: <20130322093027.GA521@arm.com> References: <1363942307-9327-1-git-send-email-thierry.reding@avionic-design.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 In-Reply-To: <1363942307-9327-1-git-send-email-thierry.reding@avionic-design.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: On Fri, Mar 22, 2013 at 08:51:45AM +0000, Thierry Reding wrote: > It > is the responsibility of the PCI host bridge driver to setup the MSI > chip for the root bus. I think this could work well. In the future if the use of an independent MSI controller is required, then new DT bindings for host-bridges could use phandles to reference independent MSI controllers as their providers of MSIs. I guess this functionality can be built on top of what you have proposed later as the need arises. Andrew Murray