linux-kernel - Re: [RFC 10/13] iommu/arm-smmu-impl: Get rid of Marvell's implementation details

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Message-ID: <6c26302c546afb4d9d35e044b3b5d643704d46a5.camel@suse.de>
Date:   Tue, 02 Mar 2021 15:06:58 +0100
From:   Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
To:     Robin Murphy <robin.murphy@....com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     f.fainelli@...il.com, robh+dt@...nel.org, ardb@...nel.org,
        hch@...radead.org, narmstrong@...libre.com, dwmw2@...radead.org,
        linux@...linux.org.uk, catalin.marinas@....com, arnd@...db.de,
        will@...nel.org
Subject: Re: [RFC 10/13] iommu/arm-smmu-impl: Get rid of Marvell's
 implementation details

On Tue, 2021-03-02 at 11:40 +0000, Robin Murphy wrote:
> On 2021-02-26 14:03, Nicolas Saenz Julienne wrote:
> > arm-smmu can now deal with integrations on buses that don't support
> > 64bit MMIO accesses. No need to create a special case for that on
> > Marvell's integration.
> 
> This breaks compatibility with existing DTs.

Yes. On top of that, I had a brief word with robh on the topic of DT
properties. I'm going to explore alternatives that don't depend on it.

Regards,
Nicolas



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