[PATCH v2] media: dt: bindings: tegra-vde: Document new optional IOMMU property

Dmitry Osipenko digetx at gmail.com
Tue Jun 18 16:14:54 UTC 2019


All NVIDIA Tegra SoC generations provide IOMMU support for the video
decoder engine. Document new optional device-tree property that connects
VDE with the IOMMU provider.

Signed-off-by: Dmitry Osipenko <digetx at gmail.com>
---
 Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt b/Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt
index 7302e949e662..602169b8aa19 100644
--- a/Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt
+++ b/Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt
@@ -35,6 +35,7 @@ Optional properties:
 - resets : Must contain an entry for each entry in reset-names.
 - reset-names : Must include the following entries:
   - mc
+- iommus: Must contain phandle to the IOMMU device node.
 
 Example:
 
@@ -59,4 +60,5 @@ video-codec at 6001a000 {
 	clocks = <&tegra_car TEGRA20_CLK_VDE>;
 	reset-names = "vde", "mc";
 	resets = <&tegra_car 61>, <&mc TEGRA20_MC_RESET_VDE>;
+	iommus = <&mc TEGRA_SWGROUP_VDE>;
 };
-- 
2.22.0



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