linux-kernel - Re: [RFC 2/5] ARM: OMAP: omap_device: add a method to set iommu private archdata

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Message-ID: <CAK=WgbYaEPBUz_J11+f+W+G9uUG3E6aQ-5=X9bj2nRhij-w-Sw@mail.gmail.com>
Date:	Tue, 4 Oct 2011 21:54:44 +0200
From:	Ohad Ben-Cohen <ohad@...ery.com>
To:	Kevin Hilman <khilman@...com>
Cc:	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Joerg Roedel <Joerg.Roedel@....com>,
	iommu@...ts.linux-foundation.org, Arnd Bergmann <arnd@...db.de>,
	linux-kernel@...r.kernel.org, Cousson Benoit <b-cousson@...com>,
	Tony Lindgren <tony@...mide.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Hiroshi DOYU <Hiroshi.DOYU@...ia.com>
Subject: Re: [RFC 2/5] ARM: OMAP: omap_device: add a method to set iommu
 private archdata

On Tue, Oct 4, 2011 at 8:15 PM, Kevin Hilman <khilman@...com> wrote:
> The approach is OK with me, but I'm a bit torn about whether or not to
> merge this since the need for this should go away when converting to DT.

I guess it will still take some time until our boards are fully
functional with DT, so I think we should regard this as an interim
solution. Without this patch, a huge deal of code consolidation and
generalization is gated (namely - generic iommu and dma api, and
everything that depends on it, e.g. rpmsg/remoteproc).

> Is anyone working on IOMMU DT description?

Unless Benoit is, I'll happily pick this up.

> I guess if I do merge this, we can also clean this up significantly
> after all devices are converted to DT.

Sure.

> Unless it has other dependencies on Benoit's further DT patches, you can
> base this on my for_3.2/omap_device-2 branch which includes Benoit's
> alloc changes.

Ok, thanks a lot !
Ohad.
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