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[2/5] dt-bindings: gk20a: Document iommus property

Message ID 1457668318-2821-3-git-send-email-acourbot@nvidia.com
State Accepted, archived
Delegated to: Thierry Reding
Headers show

Commit Message

Alexandre Courbot March 11, 2016, 3:51 a.m. UTC 
GK20A can optionally make use of an IOMMU.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
---
 Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

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";
 	};