From: swarren@wwwdotorg•org (Stephen Warren)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 06/23] ARM: dt: tegra114: iommu: Add "nvidia,swgroups"
Date: Mon, 01 Jul 2013 17:10:01 -0600 [thread overview]
Message-ID: <51D20C49.2020802@wwwdotorg.org> (raw)
In-Reply-To: <20130701.112446.119298599375396428.hdoyu@nvidia.com>
On 07/01/2013 02:24 AM, Hiroshi Doyu wrote:
> Thierry Reding <thierry.reding@gmail•com> wrote @ Wed, 26 Jun 2013 12:52:17 +0200:
>> On Wed, Jun 26, 2013 at 12:28:09PM +0300, Hiroshi Doyu wrote:
>>> This is a bitmap that indicates which HardWare Accelerators(HWA) are
>>> supported on Tegra114 SoC.
...
>> It seems like an nvidia,tegra114-smmu.txt file is missing from the
>> Documentation/devicetree/bindings/iommu directory.
>
> All difference between T30 and T114 is now provided from DT. They have
> all same entries but only those values are different.
>
> Do we still need a copy of nvidia,tegra30-smmu.txt for t114 or is just
> tweaking nvidia,tegra30-smmu.txt for t114 enough?
If the two HW are identical (at least as far as bindings), the existing
nvidia,tegra30-smmu.txt should be enough. We probably should at least
update it to list the additional supported compatible value though,
especially if the driver interprets the two compatible values in a
different way (e.g. there are HW differences, but they don't affect the
binding definition).
prev parent reply other threads:[~2013-07-01 23:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-26 9:28 [PATCH 06/23] ARM: dt: tegra114: iommu: Add "nvidia,swgroups" Hiroshi Doyu
2013-06-26 10:52 ` Thierry Reding
2013-07-01 8:24 ` Hiroshi Doyu
2013-07-01 23:10 ` Stephen Warren [this message]
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