[RFC 2/4] iommu: tegra/gart: Add device tree support

[Stephen Warren]

On 04/11/2012 06:10 AM, Thierry Reding wrote:
> This commit adds device tree support for the GART hardware available on
> NVIDIA Tegra 20 SoCs.
> 
> Signed-off-by: Thierry Reding <thierry.reding at avionic-design.de>
> ---
>  arch/arm/boot/dts/tegra20.dtsi         |    6 ++++++
>  arch/arm/mach-tegra/board-dt-tegra20.c |    1 +
>  drivers/iommu/tegra-gart.c             |   10 ++++++++++
>  3 files changed, 17 insertions(+)

I think I'd prefer at least the tegra20.dtsi change split out into a
separate patch so I can queue it in a "dt" topic branch in the Tegra repo.

It might be a good idea to split this into two on an arch/arm vs.
drivers/iommu boundary. Looking at Olof's branches for 3.4, that split
is what happened there.

Finally, there should be a binding documentation file in
Documentation/devicetree/bindings in order to specify the number of reg
property entries needed, and their meaning, since there's more than 1
(even though you did comment it nicely in the .dtsi file)