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@xxxxxxxxx>
---
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@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>;
};
--
2.21.0
_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
