Re: [PATCHv8 15/21] iommu/tegra124: smmu: add support platform data

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On 05/30/2014 05:20 AM, Hiroshi Doyu wrote:
> The later Tegra SoC(>= T124) has more registers for
> MC_SMMU_TRANSLATION_ENABLE_*. Now those info is provided as platfrom
> data. If those varies a lot on SoCs in the future, we can consider
> putting them into DT later.

> diff --git a/Documentation/devicetree/bindings/iommu/nvidia,tegra30-smmu.txt b/Documentation/devicetree/bindings/iommu/nvidia,tegra30-smmu.txt

>  Required properties:
> -- compatible : "nvidia,tegra30-smmu"
> -- reg : Should contain 3 register banks(address and length) for each
> +- compatible : "nvidia,tegra124-smmu", "nvidia,tegra30-smmu"
> +- reg : Can contain multiple register banks(address and length) for each
>    of the SMMU register blocks.

How many is "multiple"? This seems like rather a weak definition of how
many entries are expected. What are the different register banks?
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