linux-kernel - RE: [PATCH 0/4] PCI: rcar: Add support for ARM64 and multiple instances

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Date:	Fri, 30 Oct 2015 07:24:28 +0000
From:	Phil Edworthy <phil.edworthy@...esas.com>
To:	Bjorn Helgaas <helgaas@...nel.org>,
	Wolfram Sang <wsa@...-dreams.de>
CC:	Bjorn Helgaas <bhelgaas@...gle.com>,
	Simon Horman <horms@...ge.net.au>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-sh@...r.kernel.org" <linux-sh@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 0/4] PCI: rcar: Add support for ARM64 and multiple
 instances

Hi Bjorn,

On 30 October 2015 07:19, Phil wrote
> On 29 October 2015 23:03, Bjorn wrote:
> > On Thu, Oct 29, 2015 at 07:48:00PM +0100, Wolfram Sang wrote:
> > > On Thu, Oct 29, 2015 at 04:44:06PM +0000, Phil Edworthy wrote:
> > > > Hi Wolfram,
> > > >
> > > > On 29 October 2015 16:40, Wolfram wrote:
> > > > > > Ouch, my bad. I have been working with our out-of-tree BSP for the
> > Salvator-X
> > > > > board on
> > > > > > http://git.kernel.org/cgit/linux/kernel/git/horms/renesas-bsp.git,  rcar-
> > 3.0.2
> > > > > tag along
> > > > > > with some patches from colleagues. I hadn't noticed this patch:
> > > > >
> > > > > Thanks! Any plans for pushing this upstream? We will have the build error
> > > > > otherwise...
> > > > After some digging, that patch won't be accepted upstream. I'm looking into
> > how the
> > > > driver can be modified so it doesn't need to call this, but I don't expect a
> small
> > or
> > > > imminent fix.
> > >
> > > Yes, I'd think so, too. However, a fix for 4.4 would be needed to
> > > prevent having a final release with a build error.
> >
> > I'm thinking I should drop my pci/host-rcar branch until we
> > have a fix for this.  It currently contains:
> >
> >   9ac724f20774 PCI: rcar: Fix I/O offset for multiple host bridges
> >   7d75b413f5c6 PCI: rcar: Set root bus nr to that provided in DT
> >   4c22eab88c68 PCI: rcar: Remove dependency on ARM-specific struct hw_pci
> >   ef18d2e55ea0 PCI: rcar: Make PCI aware of the I/O resources
> >
> > Is that right?  Last I heard, Linus expects to release v4.3 on Sunday,
> > so we really don't have much time to sort this out.
> The simple thing is to re-add Geert's patch to stop this driver being built for
> arm64.
Btw, it's this one: https://patchwork.ozlabs.org/patch/512040/

Thanks
Phil
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