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authorDmitry Osipenko <digetx@gmail.com>2019-06-23 13:07:26 -0400
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-07-25 06:20:01 -0400
commit78b3e86b5a75b6fb3122b11d507023f1b194f663 (patch)
tree1e0bdf815acedccb286bd49ecbfc80f031573ccc /Documentation/devicetree
parente2727ec58c113c2c95cbb75f6a129bd1fa0bf761 (diff)
media: dt: bindings: tegra-vde: Document new optional IOMMU property
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@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt2
1 files changed, 2 insertions, 0 deletions
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>;
};