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Message-ID: <1457668318-2821-3-git-send-email-acourbot@nvidia.com>
Date: Fri, 11 Mar 2016 12:51:55 +0900
From: Alexandre Courbot <acourbot@...dia.com>
To: Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Stephen Warren <swarren@...dotorg.org>,
Thierry Reding <thierry.reding@...il.com>
CC: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
gnurou@...il.com, Alexandre Courbot <acourbot@...dia.com>
Subject: [PATCH 2/5] dt-bindings: gk20a: Document iommus property
GK20A can optionally make use of an IOMMU.
Signed-off-by: Alexandre Courbot <acourbot@...dia.com>
---
Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
index 914f0ff4020e..1e3748337319 100644
--- a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
+++ b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
@@ -24,6 +24,9 @@ Required properties:
- reset-names: Must include the following entries:
- gpu
+Optional properties:
+- iommus: A reference to the IOMMU. See ../iommu/iommu.txt for details.
+
Example:
gpu@0,57000000 {
@@ -39,5 +42,6 @@ Example:
clock-names = "gpu", "pwr";
resets = <&tegra_car 184>;
reset-names = "gpu";
+ iommus = <&mc TEGRA_SWGROUP_GPU>;
status = "disabled";
};
--
2.7.2
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