linux-kernel - Re: [PATCH v3 3/4] of/pci: add of_pci_dma

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Message-ID: <20150109113254.GA11258@arm.com>
Date:	Fri, 9 Jan 2015 11:32:55 +0000
From:	Will Deacon <will.deacon@....com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Murali Karicheri <m-karicheri2@...com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux@....linux.org.uk" <linux@....linux.org.uk>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"joro@...tes.org" <joro@...tes.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"bhelgaas@...gle.com" <bhelgaas@...gle.com>,
	"iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>
Subject: Re: [PATCH v3 3/4] of/pci: add of_pci_dma_configure() update dma
 configuration

On Thu, Jan 08, 2015 at 10:25:15PM +0000, Arnd Bergmann wrote:
> On Thursday 08 January 2015 14:52:13 Murali Karicheri wrote:
> > 
> > Could you add this as as a follow up patch as I don't have a platformm 
> > that support IOMMU and as such my understanding of the IOMMU is limited?
> > 
> > I can help test the change to make sure it has no side effect on 
> > Keystone that doesn't support IOMMU.
> 
> I think that's fine. Let's get your series done first and add the
> DMA aliases for iommus on top once we have worked out what to do.

Yeah, I'm fine with that too. I think we're going to be working on this for
a while, so doing it bit-by-bit makes a lot of sense.

Will
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